mirror of https://gitee.com/openkylin/linux.git
26294 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Jiri Olsa
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38fe0e0156 |
libperf: Move 'idx' from tools/perf to perf_evsel::idx
Move evsel::idx to perf_evsel::idx, so we can move the group interface to libperf. Committer notes: Fixup evsel->idx usage in tools/perf/util/bpf_counter_cgroup.c, that appeared in my tree in my local tree. Also fixed up these: $ find tools/perf/ -name "*.[ch]" | xargs grep 'evsel->idx' tools/perf/ui/gtk/annotate.c: evsel->idx + i); tools/perf/ui/gtk/annotate.c: evsel->idx); $ That running 'make -C tools/perf build-test' caught. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Requested-by: Shunsuke Nakamura <nakamura.shun@fujitsu.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20210706151704.73662-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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John Fastabend
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1fb5ba29ad |
bpf: Selftest to verify mixing bpf2bpf calls and tailcalls with insn patch
This adds some extra noise to the tailcall_bpf2bpf4 tests that will cause verify to patch insns. This then moves around subprog start/end insn index and poke descriptor insn index to ensure that verify and JIT will continue to track these correctly. If done correctly verifier should pass this program same as before and JIT should emit tail call logic. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20210707223848.14580-3-john.fastabend@gmail.com |
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Aneesh Kumar K.V
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a9cc9c3456 |
selftest/mremap_test: avoid crash with static build
With a large mmap map size, we can overlap with the text area and using MAP_FIXED results in unmapping that area. Switch to MAP_FIXED_NOREPLACE and handle the EEXIST error. Link: https://lkml.kernel.org/r/20210616045239.370802-3-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Reviewed-by: Kalesh Singh <kaleshsingh@google.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Hugh Dickins <hughd@google.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Aneesh Kumar K.V
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f27a5c93cd |
selftest/mremap_test: update the test to handle pagesize other than 4K
Patch series "mrermap fixes", v2. This patch (of 6): Instead of hardcoding 4K page size fetch it using sysconf(). For the performance measurements test still assume 2M and 1G are hugepage sizes. Link: https://lkml.kernel.org/r/20210616045239.370802-1-aneesh.kumar@linux.ibm.com Link: https://lkml.kernel.org/r/20210616045239.370802-2-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Reviewed-by: Kalesh Singh <kaleshsingh@google.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Hugh Dickins <hughd@google.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
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76fe17ef58 |
secretmem: test: add basic selftest for memfd_secret(2)
The test verifies that file descriptor created with memfd_secret does not allow read/write operations, that secret memory mappings respect RLIMIT_MEMLOCK and that remote accesses with process_vm_read() and ptrace() to the secret memory fail. Link: https://lkml.kernel.org/r/20210518072034.31572-8-rppt@kernel.org Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christopher Lameter <cl@linux.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Elena Reshetova <elena.reshetova@intel.com> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rick Edgecombe <rick.p.edgecombe@intel.com> Cc: Roman Gushchin <guro@fb.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tycho Andersen <tycho@tycho.ws> Cc: Will Deacon <will@kernel.org> Cc: kernel test robot <lkp@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Steven Rostedt (VMware)
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fa73514d5e |
tracing/selftests: Add tests to test histogram sym and sym-offset modifiers
Add a test to the tracing selftests that will catch if the .sym or .sym-offset modifiers break in the future. Link: https://lkml.kernel.org/r/20210707121451.101a1002@oasis.local.home Acked-by: Tom Zanussi <zanussi@kernel.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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Wei Li
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1d719254c1 |
tools: bpf: Fix error in 'make -C tools/ bpf_install'
make[2]: *** No rule to make target 'install'. Stop.
make[1]: *** [Makefile:122: runqslower_install] Error 2
make: *** [Makefile:116: bpf_install] Error 2
There is no rule for target 'install' in tools/bpf/runqslower/Makefile,
and there is no need to install it, so just remove 'runqslower_install'.
Fixes:
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David S. Miller
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d7fba8ff3e |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Do not refresh timeout in SYN_SENT for syn retransmissions. Add selftest for unreplied TCP connection, from Florian Westphal. 2) Fix null dereference from error path with hardware offload in nftables. 3) Remove useless nf_ct_gre_keymap_flush() from netns exit path, from Vasily Averin. 4) Missing rcu read-lock side in ctnetlink helper info dump, also from Vasily. 5) Do not mark RST in the reply direction coming after SYN packet for an out-of-sync entry, from Ali Abdallah and Florian Westphal. 6) Add tcp_ignore_invalid_rst sysctl to allow to disable out of segment RSTs, from Ali. 7) KCSAN fix for nf_conntrack_all_lock(), from Manfred Spraul. 8) Honor NFTA_LAST_SET in nft_last. 9) Fix incorrect arithmetics when restore last_jiffies in nft_last. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Hangbin Liu
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0e02bf5de4 |
selftests: icmp_redirect: IPv6 PMTU info should be cleared after redirect
After redirecting, it's already a new path. So the old PMTU info should
be cleared. The IPv6 test "mtu exception plus redirect" should only
has redirect info without old PMTU.
The IPv4 test can not be changed because of legacy.
Fixes:
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Hangbin Liu
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24b671aad4 |
selftests: icmp_redirect: remove from checking for IPv6 route get
If the kernel doesn't enable option CONFIG_IPV6_SUBTREES, the RTA_SRC
info will not be exported to userspace in rt6_fill_node(). And ip cmd will
not print "from ::" to the route output. So remove this check.
Fixes:
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Linus Torvalds
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1423e2660c |
Fixes and improvements for FPU handling on x86:
- Prevent sigaltstack out of bounds writes. The kernel unconditionally
writes the FPU state to the alternate stack without checking whether
the stack is large enough to accomodate it.
Check the alternate stack size before doing so and in case it's too
small force a SIGSEGV instead of silently corrupting user space data.
- MINSIGSTKZ and SIGSTKSZ are constants in signal.h and have never been
updated despite the fact that the FPU state which is stored on the
signal stack has grown over time which causes trouble in the field
when AVX512 is available on a CPU. The kernel does not expose the
minimum requirements for the alternate stack size depending on the
available and enabled CPU features.
ARM already added an aux vector AT_MINSIGSTKSZ for the same reason.
Add it to x86 as well
- A major cleanup of the x86 FPU code. The recent discoveries of XSTATE
related issues unearthed quite some inconsistencies, duplicated code
and other issues.
The fine granular overhaul addresses this, makes the code more robust
and maintainable, which allows to integrate upcoming XSTATE related
features in sane ways.
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Merge tag 'x86-fpu-2021-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fpu updates from Thomas Gleixner:
"Fixes and improvements for FPU handling on x86:
- Prevent sigaltstack out of bounds writes.
The kernel unconditionally writes the FPU state to the alternate
stack without checking whether the stack is large enough to
accomodate it.
Check the alternate stack size before doing so and in case it's too
small force a SIGSEGV instead of silently corrupting user space
data.
- MINSIGSTKZ and SIGSTKSZ are constants in signal.h and have never
been updated despite the fact that the FPU state which is stored on
the signal stack has grown over time which causes trouble in the
field when AVX512 is available on a CPU. The kernel does not expose
the minimum requirements for the alternate stack size depending on
the available and enabled CPU features.
ARM already added an aux vector AT_MINSIGSTKSZ for the same reason.
Add it to x86 as well.
- A major cleanup of the x86 FPU code. The recent discoveries of
XSTATE related issues unearthed quite some inconsistencies,
duplicated code and other issues.
The fine granular overhaul addresses this, makes the code more
robust and maintainable, which allows to integrate upcoming XSTATE
related features in sane ways"
* tag 'x86-fpu-2021-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (74 commits)
x86/fpu/xstate: Clear xstate header in copy_xstate_to_uabi_buf() again
x86/fpu/signal: Let xrstor handle the features to init
x86/fpu/signal: Handle #PF in the direct restore path
x86/fpu: Return proper error codes from user access functions
x86/fpu/signal: Split out the direct restore code
x86/fpu/signal: Sanitize copy_user_to_fpregs_zeroing()
x86/fpu/signal: Sanitize the xstate check on sigframe
x86/fpu/signal: Remove the legacy alignment check
x86/fpu/signal: Move initial checks into fpu__restore_sig()
x86/fpu: Mark init_fpstate __ro_after_init
x86/pkru: Remove xstate fiddling from write_pkru()
x86/fpu: Don't store PKRU in xstate in fpu_reset_fpstate()
x86/fpu: Remove PKRU handling from switch_fpu_finish()
x86/fpu: Mask PKRU from kernel XRSTOR[S] operations
x86/fpu: Hook up PKRU into ptrace()
x86/fpu: Add PKRU storage outside of task XSAVE buffer
x86/fpu: Dont restore PKRU in fpregs_restore_userspace()
x86/fpu: Rename xfeatures_mask_user() to xfeatures_mask_uabi()
x86/fpu: Move FXSAVE_LEAK quirk info __copy_kernel_to_fpregs()
x86/fpu: Rename __fpregs_load_activate() to fpregs_restore_userregs()
...
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SanjayKumar Jeyakumar
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5616e895ec |
tools/runqslower: Use __state instead of state
Commit |
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Jiri Olsa
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3d970601da |
libperf: Change tests to single static and shared binaries
Make tests to be two binaries 'tests_static' and 'tests_shared', so the maintenance is easier. Adding tests under libperf build system, so we define all the flags just once. Adding make-tests tule to just compile tests without running them. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com> Link: http://lore.kernel.org/lkml/20210706151704.73662-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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b4b046ff9e |
perf intel-pt: Add a config for max loops without consuming a packet
The Intel PT decoder limits the number of unconditional branches (e.g. jmps) decoded without consuming any trace packets. Generally, a loop needs a conditional branch which generates a TNT packet, whereas a "ret" instruction will generate a TIP or TNT packet. So exceeding the limit is assumed to be a never-ending loop, which can happen if there has been a decoding error putting the decoder at the wrong place in the code. Up until now, the limit of 10000 has been enough but some analytic purposes have been reported to exceed that. Increase the limit to 100000, and make it configurable via perf config intel-pt.max-loops. Also amend the "Never-ending loop" message to mention the configuration entry. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20210701175132.3977-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Jin Yao
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493be70ac3 |
perf stat: Disable the NMI watchdog message on hybrid
If we run a single workload that only runs on big core, there is always
a ugly message about disabling the NMI watchdog because the atom is not
counted.
Before:
# ./perf stat true
Performance counter stats for 'true':
0.43 msec task-clock # 0.396 CPUs utilized
0 context-switches # 0.000 /sec
0 cpu-migrations # 0.000 /sec
45 page-faults # 103.918 K/sec
639,634 cpu_core/cycles/ # 1.477 G/sec
<not counted> cpu_atom/cycles/ (0.00%)
643,498 cpu_core/instructions/ # 1.486 G/sec
<not counted> cpu_atom/instructions/ (0.00%)
123,715 cpu_core/branches/ # 285.694 M/sec
<not counted> cpu_atom/branches/ (0.00%)
4,094 cpu_core/branch-misses/ # 9.454 M/sec
<not counted> cpu_atom/branch-misses/ (0.00%)
0.001092407 seconds time elapsed
0.001144000 seconds user
0.000000000 seconds sys
Some events weren't counted. Try disabling the NMI watchdog:
echo 0 > /proc/sys/kernel/nmi_watchdog
perf stat ...
echo 1 > /proc/sys/kernel/nmi_watchdog
# ./perf stat -e '{cpu_atom/cycles/,msr/tsc/}' true
Performance counter stats for 'true':
<not counted> cpu_atom/cycles/ (0.00%)
<not counted> msr/tsc/ (0.00%)
0.001904106 seconds time elapsed
0.001947000 seconds user
0.000000000 seconds sys
Some events weren't counted. Try disabling the NMI watchdog:
echo 0 > /proc/sys/kernel/nmi_watchdog
perf stat ...
echo 1 > /proc/sys/kernel/nmi_watchdog
The events in group usually have to be from the same PMU. Try reorganizing the group.
Now we disable the NMI watchdog message on hybrid, otherwise there
are too many false positives.
After:
# ./perf stat true
Performance counter stats for 'true':
0.79 msec task-clock # 0.419 CPUs utilized
0 context-switches # 0.000 /sec
0 cpu-migrations # 0.000 /sec
48 page-faults # 60.889 K/sec
777,692 cpu_core/cycles/ # 986.519 M/sec
<not counted> cpu_atom/cycles/ (0.00%)
669,147 cpu_core/instructions/ # 848.828 M/sec
<not counted> cpu_atom/instructions/ (0.00%)
128,635 cpu_core/branches/ # 163.176 M/sec
<not counted> cpu_atom/branches/ (0.00%)
4,089 cpu_core/branch-misses/ # 5.187 M/sec
<not counted> cpu_atom/branch-misses/ (0.00%)
0.001880649 seconds time elapsed
0.001935000 seconds user
0.000000000 seconds sys
# ./perf stat -e '{cpu_atom/cycles/,msr/tsc/}' true
Performance counter stats for 'true':
<not counted> cpu_atom/cycles/ (0.00%)
<not counted> msr/tsc/ (0.00%)
0.000963319 seconds time elapsed
0.000999000 seconds user
0.000000000 seconds sys
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210610034557.29766-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Kajol Jain
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a3cbcadfdf |
perf vendor events power10: Adds 24x7 nest metric events for power10 platform
Patch adds 24x7 nest metric events for POWER10. Signed-off-by: Kajol Jain <kjain@linux.ibm.com> Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Clarke <pc@us.ibm.com> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lore.kernel.org/lkml/20210628064935.163465-1-kjain@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Kajol Jain
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dea8cfcc33 |
perf script python: Fix buffer size to report iregs in perf script
Commit |
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Justin M. Forbes
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e63cbfa3be |
perf trace: Fix the perf trace link location
The install perf_dlfilter.h patch included what seems to be a typo in
the Makefile.perf, which changed the location of the trace link from
'$(DESTDIR_SQ)$(bindir_SQ)/trace' to '$(DESTDIR_SQ)$(dir_SQ)/trace'.
This reverts it back to the correct location.
Fixes:
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Riccardo Mancini
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83952286f2 |
perf top: Fix overflow in elf_sec__is_text()
ASan reports a heap-buffer-overflow in elf_sec__is_text when using perf-top.
The bug is caused by the fact that secstrs is built from runtime_ss, while
shdr is built from syms_ss if shdr.sh_type != SHT_NOBITS. Therefore, they
point to two different ELF files.
This patch renames secstrs to secstrs_run and adds secstrs_sym, so that
the correct secstrs is chosen depending on shdr.sh_type.
$ ASAN_OPTIONS=abort_on_error=1:disable_coredump=0:unmap_shadow_on_exit=1 ./perf top
=================================================================
==363148==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61300009add6 at pc 0x00000049875c bp 0x7f4f56446440 sp 0x7f4f56445bf0
READ of size 1 at 0x61300009add6 thread T6
#0 0x49875b in StrstrCheck(void*, char*, char const*, char const*) (/home/user/linux/tools/perf/perf+0x49875b)
#1 0x4d13a2 in strstr (/home/user/linux/tools/perf/perf+0x4d13a2)
#2 0xacae36 in elf_sec__is_text /home/user/linux/tools/perf/util/symbol-elf.c:176:9
#3 0xac3ec9 in elf_sec__filter /home/user/linux/tools/perf/util/symbol-elf.c:187:9
#4 0xac2c3d in dso__load_sym /home/user/linux/tools/perf/util/symbol-elf.c:1254:20
#5 0x883981 in dso__load /home/user/linux/tools/perf/util/symbol.c:1897:9
#6 0x8e6248 in map__load /home/user/linux/tools/perf/util/map.c:332:7
#7 0x8e66e5 in map__find_symbol /home/user/linux/tools/perf/util/map.c:366:6
#8 0x7f8278 in machine__resolve /home/user/linux/tools/perf/util/event.c:707:13
#9 0x5f3d1a in perf_event__process_sample /home/user/linux/tools/perf/builtin-top.c:773:6
#10 0x5f30e4 in deliver_event /home/user/linux/tools/perf/builtin-top.c:1197:3
#11 0x908a72 in do_flush /home/user/linux/tools/perf/util/ordered-events.c:244:9
#12 0x905fae in __ordered_events__flush /home/user/linux/tools/perf/util/ordered-events.c:323:8
#13 0x9058db in ordered_events__flush /home/user/linux/tools/perf/util/ordered-events.c:341:9
#14 0x5f19b1 in process_thread /home/user/linux/tools/perf/builtin-top.c:1109:7
#15 0x7f4f6a21a298 in start_thread /usr/src/debug/glibc-2.33-16.fc34.x86_64/nptl/pthread_create.c:481:8
#16 0x7f4f697d0352 in clone ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
0x61300009add6 is located 10 bytes to the right of 332-byte region [0x61300009ac80,0x61300009adcc)
allocated by thread T6 here:
#0 0x4f3f7f in malloc (/home/user/linux/tools/perf/perf+0x4f3f7f)
#1 0x7f4f6a0a88d9 (/lib64/libelf.so.1+0xa8d9)
Thread T6 created by T0 here:
#0 0x464856 in pthread_create (/home/user/linux/tools/perf/perf+0x464856)
#1 0x5f06e0 in __cmd_top /home/user/linux/tools/perf/builtin-top.c:1309:6
#2 0x5ef19f in cmd_top /home/user/linux/tools/perf/builtin-top.c:1762:11
#3 0x7b28c0 in run_builtin /home/user/linux/tools/perf/perf.c:313:11
#4 0x7b119f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8
#5 0x7b2423 in run_argv /home/user/linux/tools/perf/perf.c:409:2
#6 0x7b0c19 in main /home/user/linux/tools/perf/perf.c:539:3
#7 0x7f4f696f7b74 in __libc_start_main /usr/src/debug/glibc-2.33-16.fc34.x86_64/csu/../csu/libc-start.c:332:16
SUMMARY: AddressSanitizer: heap-buffer-overflow (/home/user/linux/tools/perf/perf+0x49875b) in StrstrCheck(void*, char*, char const*, char const*)
Shadow bytes around the buggy address:
0x0c268000b560: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c268000b570: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c268000b580: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c268000b590: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c268000b5a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c268000b5b0: 00 00 00 00 00 00 00 00 00 04[fa]fa fa fa fa fa
0x0c268000b5c0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
0x0c268000b5d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c268000b5e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c268000b5f0: 07 fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c268000b600: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==363148==ABORTING
Suggested-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Remi Bernon <rbernon@codeweavers.com>
Link: http://lore.kernel.org/lkml/20210621222108.196219-1-rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
|
Riccardo Mancini
|
5a4451e4d5 |
perf annotate: Fix 's' on source line when disasm is empty
If the disasm is empty, 's' should fail. Instead it seemingly works,
hiding the empty lines and causing an assertion error on the next time
annotate is called (from within perf report).
The problem is caused by a buffer overflow, caused by a wrong exit
condition in annotate_browser__find_next_asm_line, which checks
browser->b.top instead of browser->b.entries.
This patch fixes the issue, making annotate_browser__toggle_source
fail if the disasm is empty (nothing happens to the user).
Fixes:
|
|
|
Masami Hiramatsu
|
d5882a92ea |
perf probe: Do not show @plt function by default
Fix the perf-probe --functions option do not show the PLT stub symbols (*@plt) by default. ----- $ ./perf probe -x /usr/lib64/libc-2.33.so -F | head a64l abort abs accept accept4 access acct addmntent addseverity adjtime ----- Reported-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Masami Hiramatsu <mhriamat@kernel.org> Acked-by: Thomas Richter <tmricht@linux.ibm.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Stefan Liebler <stli@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Link: http://lore.kernel.org/lkml/162532653450.393143.12621329879630677469.stgit@devnote2 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
|
Masami Hiramatsu
|
87704345cc |
perf symbol-elf: Decode dynsym even if symtab exists
In Fedora34, libc-2.33.so has both .dynsym and .symtab sections and most of (not all) symbols moved to .dynsym. In this case, perf only decode the symbols in .symtab, and perf probe can not list up the functions in the library. To fix this issue, decode both .symtab and .dynsym sections. Without this fix, ----- $ ./perf probe -x /usr/lib64/libc-2.33.so -F @plt @plt calloc@plt free@plt malloc@plt memalign@plt realloc@plt ----- With this fix. ----- $ ./perf probe -x /usr/lib64/libc-2.33.so -F @plt @plt a64l abort abs accept accept4 access acct addmntent ----- Reported-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Thomas Richter <tmricht@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Stefan Liebler <stli@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Link: http://lore.kernel.org/lkml/162532652681.393143.10163733179955267999.stgit@devnote2 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
|
Masami Hiramatsu
|
eb4717f733 |
perf probe: Fix debuginfo__new() to enable build-id based debuginfo
Fix debuginfo__new() to set the build-id to dso before dso__read_binary_type_filename() so that it can find DSO_BINARY_TYPE__BUILDID_DEBUGINFO debuginfo correctly. However, this may not change the result, because elfutils (libdwfl) has its own debuginfo finder. With/without this patch, the perf probe correctly find the debuginfo file. This is just a failsafe and keep code's sanity (if you use dso__read_binary_type_filename(), you must set the build-id to the dso.) Reported-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Masami Hiramatsu <mhriamat@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Stefan Liebler <stli@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Link: http://lore.kernel.org/lkml/162532651863.393143.11692691321219235810.stgit@devnote2 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
|
Toke Høiland-Jørgensen
|
af0efa050c |
libbpf: Restore errno return for functions that were already returning it
The update to streamline libbpf error reporting intended to change all
functions to return the errno as a negative return value if
LIBBPF_STRICT_DIRECT_ERRS is set. However, if the flag is *not* set, the
return value changes for the two functions that were already returning a
negative errno unconditionally: bpf_link__unpin() and perf_buffer__poll().
This is a user-visible API change that breaks applications; so let's revert
these two functions back to unconditionally returning a negative errno
value.
Fixes:
|
|
|
Christian Borntraeger
|
cd4220d23b |
KVM: selftests: do not require 64GB in set_memory_region_test
Unless the user sets overcommit_memory or has plenty of swap, the latest
changes to the testcase will result in ENOMEM failures for hosts with
less than 64GB RAM. As we do not use much of the allocated memory, we
can use MAP_NORESERVE to avoid this error.
Cc: Zenghui Yu <yuzenghui@huawei.com>
Cc: vkuznets@redhat.com
Cc: wanghaibin.wang@huawei.com
Cc: stable@vger.kernel.org
Fixes:
|
|
|
Christian Borntraeger
|
fb5dad4084 |
KVM: selftests: introduce P44V64 for z196 and EC12
Older machines like z196 and zEC12 do only support 44 bits of physical
addresses. Make this the default and check via IBC if we are on a later
machine. We then add P47V64 as an additional model.
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Link: https://lore.kernel.org/kvm/20210701153853.33063-1-borntraeger@de.ibm.com/
Fixes:
|
|
|
Gu Shengxian
|
bc832065b6 |
bpftool: Properly close va_list 'ap' by va_end() on error
va_list 'ap' was opened but not closed by va_end() in error case. It should
be closed by va_end() before the return.
Fixes:
|
|
|
Linus Torvalds
|
eed0218e8c |
Char / Misc driver updates for 5.14-rc1
Here is the big set of char / misc and other driver subsystem updates for 5.14-rc1. Included in here are: - habanna driver updates - fsl-mc driver updates - comedi driver updates - fpga driver updates - extcon driver updates - interconnect driver updates - mei driver updates - nvmem driver updates - phy driver updates - pnp driver updates - soundwire driver updates - lots of other tiny driver updates for char and misc drivers This is looking more and more like the "various driver subsystems mushed together" tree... All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYOM8jQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymECgCg0yL+8WxDKO5Gg5llM5PshvLB1rQAn0y5pDgg nw78LV3HQ0U7qaZBtI91 =x+AR -----END PGP SIGNATURE----- Merge tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc driver updates from Greg KH: "Here is the big set of char / misc and other driver subsystem updates for 5.14-rc1. Included in here are: - habanalabs driver updates - fsl-mc driver updates - comedi driver updates - fpga driver updates - extcon driver updates - interconnect driver updates - mei driver updates - nvmem driver updates - phy driver updates - pnp driver updates - soundwire driver updates - lots of other tiny driver updates for char and misc drivers This is looking more and more like the "various driver subsystems mushed together" tree... All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits) mcb: Use DEFINE_RES_MEM() helper macro and fix the end address PNP: moved EXPORT_SYMBOL so that it immediately followed its function/variable bus: mhi: pci-generic: Add missing 'pci_disable_pcie_error_reporting()' calls bus: mhi: Wait for M2 state during system resume bus: mhi: core: Fix power down latency intel_th: Wait until port is in reset before programming it intel_th: msu: Make contiguous buffers uncached intel_th: Remove an unused exit point from intel_th_remove() stm class: Spelling fix nitro_enclaves: Set Bus Master for the NE PCI device misc: ibmasm: Modify matricies to matrices misc: vmw_vmci: return the correct errno code siox: Simplify error handling via dev_err_probe() fpga: machxo2-spi: Address warning about unused variable lkdtm/heap: Add init_on_alloc tests selftests/lkdtm: Enable various testable CONFIGs lkdtm: Add CONFIG hints in errors where possible lkdtm: Enable DOUBLE_FAULT on all architectures lkdtm/heap: Add vmalloc linear overflow test lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE ... |
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Arnaldo Carvalho de Melo
|
44c2cd80f2 |
tools headers UAPI: Sync files changed by the quotactl_fd new syscall
To pick the changes in these csets: |
|
|
Arnaldo Carvalho de Melo
|
097e4e9dc7 |
tools headers UAPI: Sync asm-generic/mman-common.h with the kernel
To pick the changes from:
Fixes:
|
|
|
Arnaldo Carvalho de Melo
|
84d5c07d2d |
tools headers UAPI: Update tools's copy of drm/drm.h header
Picking the changes from: |
|
|
Arnaldo Carvalho de Melo
|
4a1cddeab5 |
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
To pick the changes in: |
|
|
Arnaldo Carvalho de Melo
|
688ef3e306 |
tools include UAPI: Sync sound/asound.h copy with the kernel sources
Picking the changes from:
|
|
|
Namhyung Kim
|
944138f048 |
perf stat: Enable BPF counter with --for-each-cgroup
Recently bperf was added to use BPF to count perf events for various purposes. This is an extension for the approach and targetting to cgroup usages. Unlike the other bperf, it doesn't share the events with other processes but it'd reduce unnecessary events (and the overhead of multiplexing) for each monitored cgroup within the perf session. When --for-each-cgroup is used with --bpf-counters, it will open cgroup-switches event per cpu internally and attach the new BPF program to read given perf_events and to aggregate the results for cgroups. It's only called when task is switched to a task in a different cgroup. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20210701211227.1403788-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
|
Namhyung Kim
|
892ba7f186 |
perf report: Fix --task and --stat with pipe input
Current 'perf report' fails to process a pipe input when --task or
--stat options are used. This is because they reset all the tool
callbacks and fails to find a matching event for a sample.
When pipe input is used, the event info is passed via ATTR records so it
needs to handle that operation. Otherwise the following error occurs.
Note, -14 (= -EFAULT) comes from evlist__parse_sample():
# perf record -a -o- sleep 1 | perf report -i- --stat
Can't parse sample, err = -14
0x271044 [0x38]: failed to process type: 9
Error:
failed to process sample
#
Committer testing:
Before:
$ perf record -o- sleep 1 | perf report -i- --stat
Can't parse sample, err = -14
[ perf record: Woken up 1 times to write data ]
0x1350 [0x30]: failed to process type: 9
Error:
failed to process sample
[ perf record: Captured and wrote 0.000 MB - ]
$
After:
$ perf record -o- sleep 1 | perf report -i- --stat
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.000 MB - ]
Aggregated stats:
TOTAL events: 41
COMM events: 2 ( 4.9%)
EXIT events: 1 ( 2.4%)
SAMPLE events: 9 (22.0%)
MMAP2 events: 4 ( 9.8%)
ATTR events: 1 ( 2.4%)
FINISHED_ROUND events: 1 ( 2.4%)
THREAD_MAP events: 1 ( 2.4%)
CPU_MAP events: 1 ( 2.4%)
EVENT_UPDATE events: 1 ( 2.4%)
TIME_CONV events: 1 ( 2.4%)
FEATURE events: 19 (46.3%)
cycles:uhH stats:
SAMPLE events: 9
$
Fixes:
|
|
|
Linus Torvalds
|
28e92f9903 |
Merge branch 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull RCU updates from Paul McKenney: - Bitmap parsing support for "all" as an alias for all bits - Documentation updates - Miscellaneous fixes, including some that overlap into mm and lockdep - kvfree_rcu() updates - mem_dump_obj() updates, with acks from one of the slab-allocator maintainers - RCU NOCB CPU updates, including limited deoffloading - SRCU updates - Tasks-RCU updates - Torture-test updates * 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (78 commits) tasks-rcu: Make show_rcu_tasks_gp_kthreads() be static inline rcu-tasks: Make ksoftirqd provide RCU Tasks quiescent states rcu: Add missing __releases() annotation rcu: Remove obsolete rcu_read_unlock() deadlock commentary rcu: Improve comments describing RCU read-side critical sections rcu: Create an unrcu_pointer() to remove __rcu from a pointer srcu: Early test SRCU polling start rcu: Fix various typos in comments rcu/nocb: Unify timers rcu/nocb: Prepare for fine-grained deferred wakeup rcu/nocb: Only cancel nocb timer if not polling rcu/nocb: Delete bypass_timer upon nocb_gp wakeup rcu/nocb: Cancel nocb_timer upon nocb_gp wakeup rcu/nocb: Allow de-offloading rdp leader rcu/nocb: Directly call __wake_nocb_gp() from bypass timer rcu: Don't penalize priority boosting when there is nothing to boost rcu: Point to documentation of ordering guarantees rcu: Make rcu_gp_cleanup() be noinline for tracing rcu: Restrict RCU_STRICT_GRACE_PERIOD to at most four CPUs rcu: Make show_rcu_gp_kthreads() dump rcu_node structures blocking GP ... |
|
|
Linus Torvalds
|
da803f82fa |
Merge branch 'lkmm.2021.05.10c' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull lkmm fixlet from Paul E McKenney. Fix missing underscore in Linux-kernel memory model docs. * 'lkmm.2021.05.10c' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: tools/memory-model: Fix smp_mb__after_spinlock() spelling |
|
|
Linus Torvalds
|
757fa80f4e |
Tracing updates for 5.14:
- Added option for per CPU threads to the hwlat tracer
- Have hwlat tracer handle hotplug CPUs
- New tracer: osnoise, that detects latency caused by interrupts, softirqs
and scheduling of other tasks.
- Added timerlat tracer that creates a thread and measures in detail what
sources of latency it has for wake ups.
- Removed the "success" field of the sched_wakeup trace event.
This has been hardcoded as "1" since 2015, no tooling should be looking
at it now. If one exists, we can revert this commit, fix that tool and
try to remove it again in the future.
- tgid mapping fixed to handle more than PID_MAX_DEFAULT pids/tgids.
- New boot command line option "tp_printk_stop", as tp_printk causes trace
events to write to console. When user space starts, this can easily live
lock the system. Having a boot option to stop just after boot up is
useful to prevent that from happening.
- Have ftrace_dump_on_oops boot command line option take numbers that match
the numbers shown in /proc/sys/kernel/ftrace_dump_on_oops.
- Bootconfig clean ups, fixes and enhancements.
- New ktest script that tests bootconfig options.
- Add tracepoint_probe_register_may_exist() to register a tracepoint
without triggering a WARN*() if it already exists. BPF has a path from
user space that can do this. All other paths are considered a bug.
- Small clean ups and fixes
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Merge tag 'trace-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
- Added option for per CPU threads to the hwlat tracer
- Have hwlat tracer handle hotplug CPUs
- New tracer: osnoise, that detects latency caused by interrupts,
softirqs and scheduling of other tasks.
- Added timerlat tracer that creates a thread and measures in detail
what sources of latency it has for wake ups.
- Removed the "success" field of the sched_wakeup trace event. This has
been hardcoded as "1" since 2015, no tooling should be looking at it
now. If one exists, we can revert this commit, fix that tool and try
to remove it again in the future.
- tgid mapping fixed to handle more than PID_MAX_DEFAULT pids/tgids.
- New boot command line option "tp_printk_stop", as tp_printk causes
trace events to write to console. When user space starts, this can
easily live lock the system. Having a boot option to stop just after
boot up is useful to prevent that from happening.
- Have ftrace_dump_on_oops boot command line option take numbers that
match the numbers shown in /proc/sys/kernel/ftrace_dump_on_oops.
- Bootconfig clean ups, fixes and enhancements.
- New ktest script that tests bootconfig options.
- Add tracepoint_probe_register_may_exist() to register a tracepoint
without triggering a WARN*() if it already exists. BPF has a path
from user space that can do this. All other paths are considered a
bug.
- Small clean ups and fixes
* tag 'trace-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (49 commits)
tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT
tracing: Simplify & fix saved_tgids logic
treewide: Add missing semicolons to __assign_str uses
tracing: Change variable type as bool for clean-up
trace/timerlat: Fix indentation on timerlat_main()
trace/osnoise: Make 'noise' variable s64 in run_osnoise()
tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
tracing: Fix spelling in osnoise tracer "interferences" -> "interference"
Documentation: Fix a typo on trace/osnoise-tracer
trace/osnoise: Fix return value on osnoise_init_hotplug_support
trace/osnoise: Make interval u64 on osnoise_main
trace/osnoise: Fix 'no previous prototype' warnings
tracing: Have osnoise_main() add a quiescent state for task rcu
seq_buf: Make trace_seq_putmem_hex() support data longer than 8
seq_buf: Fix overflow in seq_buf_putmem_hex()
trace/osnoise: Support hotplug operations
trace/hwlat: Support hotplug operations
trace/hwlat: Protect kdata->kthread with get/put_online_cpus
trace: Add timerlat tracer
trace: Add osnoise tracer
...
|
|
|
Linus Torvalds
|
35e43538af |
linux-kselftest-next-5.14-rc1
This Kselftest update for Linux 5.14-rc1 consists of fixes to
existing tests and framework:
-- migrate sgx test to kselftest harness
-- add new test cases to sgx test
-- ftrace test fix event-no-pid on 1-core machine
-- splice test adjust for handler fallback removal
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Merge tag 'linux-kselftest-next-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest update from Shuah Khan:
"Fixes to existing tests and framework:
- migrate sgx test to kselftest harness
- add new test cases to sgx test
- ftrace test fix event-no-pid on 1-core machine
- splice test adjust for handler fallback removal"
* tag 'linux-kselftest-next-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/sgx: remove checks for file execute permissions
selftests/ftrace: fix event-no-pid on 1-core machine
selftests/sgx: Refine the test enclave to have storage
selftests/sgx: Add EXPECT_EEXIT() macro
selftests/sgx: Dump enclave memory map
selftests/sgx: Migrate to kselftest harness
selftests/sgx: Rename 'eenter' and 'sgx_call_vdso'
selftests: timers: rtcpie: skip test if default RTC device does not exist
selftests: lib.mk: Also install "config" and "settings"
selftests: splice: Adjust for handler fallback removal
selftests/tls: Add {} to avoid static checker warning
selftests/resctrl: Fix incorrect parsing of option "-t"
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Linus Torvalds
|
a48ad6e7a3 |
linux-kselftest-kunit-fixes-5.14-rc1
This KUnit update for Linux 5.14-rc1 consists of fixes and features: -- add support for skipped tests -- introduce kunit_kmalloc_array/kunit_kcalloc() helpers -- add gnu_printf specifiers -- add kunit_shutdown -- add unit test for filtering suites by names -- convert lib/test_list_sort.c to use KUnit -- code organization moving default config to tools/testing/kunit -- refactor of internal parser input handling -- cleanups and updates to documentation -- code cleanup related to casts -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmDfNHgACgkQCwJExA0N QxzU5g/+ORbcbE5jhumo82xYUCGTScgIqPllNO000Vk9xydMqwx6tpY5puV0ig2z 5X7pxKEQTnype58yzY5mS1p336ryIx3q+AwEownxTW3YurXo2naQ59ZPjEvlAV+E h+DMYLzEjrxzcyJATw02uC9YLUZ3w6FPJfiXViIv93YYrtcnM0u6JpwG0yfBlI4v 4KKB2Xu4K7T90C9/ADFYFKX3mjXQl5fQwvIdtA7wS90Cgq52LKp2mvg1XEiZE5d+ 0dkTZ4Zo8TxxHt665o7vfnUjQQNmh45iGlW65wONxfAPb8BPoneGjVKWQTnN0Hor W+93ZPbMuFMSSKJuoHY9U7sP5VySKvaiIYaGdi6prnZZu0zUabKnLZ6FOy7kEdfs v09ulCBTVLslixVgNcp/kD9T+G/SXwCF5YBMAiMDQ0GNfUqlFtBkEA3gd44KwMI0 KwCcOgUSiaCkqyzOz/VeQsu/nhA5jdMO0KjiAs7Z3e7r7O/qKFs/ll7hZgDNCWSC q8eIrcBkSL0EGgXR1iZ4AtGm8op6KKd4ACBM8NdtTyoGFl1npZOgZnHoIsy35G9K 9mhc7eXSoaDGqy9dONL1Tc8Neg7qLTXQNp2radqsnAAgNPUrJuC7+8YC+DdIsjBH W7OyMjpfbwPws5rP4CS+JdwL+nQprKXZvFIhWGYhkDK44MbOngw= =5QAv -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-kunit-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull KUnit update from Shuah Khan: "Fixes and features: - add support for skipped tests - introduce kunit_kmalloc_array/kunit_kcalloc() helpers - add gnu_printf specifiers - add kunit_shutdown - add unit test for filtering suites by names - convert lib/test_list_sort.c to use KUnit - code organization moving default config to tools/testing/kunit - refactor of internal parser input handling - cleanups and updates to documentation - code cleanup related to casts" * tag 'linux-kselftest-kunit-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits) kunit: add unit test for filtering suites by names kasan: test: make use of kunit_skip() kunit: test: Add example tests which are always skipped kunit: tool: Support skipped tests in kunit_tool kunit: Support skipped tests thunderbolt: test: Reinstate a few casts of bitfields kunit: tool: internal refactor of parser input handling lib/test: convert lib/test_list_sort.c to use KUnit kunit: introduce kunit_kmalloc_array/kunit_kcalloc() helpers kunit: Remove the unused all_tests.config kunit: Move default config from arch/um -> tools/testing/kunit kunit: arch/um/configs: Enable KUNIT_ALL_TESTS by default kunit: Add gnu_printf specifiers lib/cmdline_kunit: Remove a cast which are no-longer required kernel/sysctl-test: Remove some casts which are no-longer required thunderbolt: test: Remove some casts which are no longer required mmc: sdhci-of-aspeed: Remove some unnecessary casts from KUnit tests iio: Remove a cast in iio-test-format which is no longer required device property: Remove some casts in property-entry-test Documentation: kunit: Clean up some string casts in examples ... |
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Linus Torvalds
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019b3fd94b |
powerpc updates for 5.14
- A big series refactoring parts of our KVM code, and converting some to C.
- Support for ARCH_HAS_SET_MEMORY, and ARCH_HAS_STRICT_MODULE_RWX on some CPUs.
- Support for the Microwatt soft-core.
- Optimisations to our interrupt return path on 64-bit.
- Support for userspace access to the NX GZIP accelerator on PowerVM on Power10.
- Enable KUAP and KUEP by default on 32-bit Book3S CPUs.
- Other smaller features, fixes & cleanups.
Thanks to: Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann, Athira Rajeev, Baokun Li,
Benjamin Herrenschmidt, Bharata B Rao, Christophe Leroy, Daniel Axtens, Daniel Henrique
Barboza, Finn Thain, Geoff Levand, Haren Myneni, Jason Wang, Jiapeng Chong, Joel Stanley,
Jordan Niethe, Kajol Jain, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas
Piggin, Nick Desaulniers, Paul Mackerras, Russell Currey, Sathvika Vasireddy, Shaokun
Zhang, Stephen Rothwell, Sudeep Holla, Suraj Jitindar Singh, Tom Rix, Vaibhav Jain,
YueHaibing, Zhang Jianhua, Zhen Lei.
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Merge tag 'powerpc-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- A big series refactoring parts of our KVM code, and converting some
to C.
- Support for ARCH_HAS_SET_MEMORY, and ARCH_HAS_STRICT_MODULE_RWX on
some CPUs.
- Support for the Microwatt soft-core.
- Optimisations to our interrupt return path on 64-bit.
- Support for userspace access to the NX GZIP accelerator on PowerVM on
Power10.
- Enable KUAP and KUEP by default on 32-bit Book3S CPUs.
- Other smaller features, fixes & cleanups.
Thanks to: Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann, Athira
Rajeev, Baokun Li, Benjamin Herrenschmidt, Bharata B Rao, Christophe
Leroy, Daniel Axtens, Daniel Henrique Barboza, Finn Thain, Geoff Levand,
Haren Myneni, Jason Wang, Jiapeng Chong, Joel Stanley, Jordan Niethe,
Kajol Jain, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas
Piggin, Nick Desaulniers, Paul Mackerras, Russell Currey, Sathvika
Vasireddy, Shaokun Zhang, Stephen Rothwell, Sudeep Holla, Suraj Jitindar
Singh, Tom Rix, Vaibhav Jain, YueHaibing, Zhang Jianhua, and Zhen Lei.
* tag 'powerpc-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (218 commits)
powerpc: Only build restart_table.c for 64s
powerpc/64s: move ret_from_fork etc above __end_soft_masked
powerpc/64s/interrupt: clean up interrupt return labels
powerpc/64/interrupt: add missing kprobe annotations on interrupt exit symbols
powerpc/64: enable MSR[EE] in irq replay pt_regs
powerpc/64s/interrupt: preserve regs->softe for NMI interrupts
powerpc/64s: add a table of implicit soft-masked addresses
powerpc/64e: remove implicit soft-masking and interrupt exit restart logic
powerpc/64e: fix CONFIG_RELOCATABLE build warnings
powerpc/64s: fix hash page fault interrupt handler
powerpc/4xx: Fix setup_kuep() on SMP
powerpc/32s: Fix setup_{kuap/kuep}() on SMP
powerpc/interrupt: Use names in check_return_regs_valid()
powerpc/interrupt: Also use exit_must_hard_disable() on PPC32
powerpc/sysfs: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE
powerpc/ptrace: Refactor regs_set_return_{msr/ip}
powerpc/ptrace: Move set_return_regs_changed() before regs_set_return_{msr/ip}
powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
powerpc/pseries/vas: Include irqdomain.h
powerpc: mark local variables around longjmp as volatile
...
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Linus Torvalds
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406254918b |
perf tools changes for v5.14:
Tools:
- Add cgroup support for 'perf top' (-G).
- Add support for KVM MSRs in 'perf kvm stat'
- Support probes on init functions in 'perf probe', to support the
bootconfig format.
- Improve error reporting in 'perf probe'.
- No need to synthesize BUILD_ID records in 'perf inject' if the MMAP2
records have build ids already.
- Allow toggling source code ('s' hotkey) in 'perf annotate' in all
lines.
- Add itrace options support to 'perf annotate'.
- Support to custom DSO filters for 'perf script'.
Hardware enablement:
- Support the HYBRID_TOPOLOGY and HYBRID_CPU_PMU_CAPS features in the
perf.data file header.
- Support PMU prefix for mem-load and mem-store events, to support
hybrid (BIG little) CPUs such as Intel's Alderlake.
- Support hybrid CPUs in 'perf mem' and 'perf c2c'.
Hardware tracing:
- Intel PT now supports tracing KVM guests.
- Timestamp improvements for ARM's Coresight.
Build:
- Add 'make -C tools/perf build-test' entries for libopencsd/CORESIGHT=1
and libbpf/LIBBPF_DYNAMIC=1.
- Use bison's --file-prefix-map option to avoid storing full paths when
using O= in the perf build.
Tests:
- Improve the 'perf test' entries for libpfm4 and BPF counters.
Misc:
- Sync msr-index.h, mount.h, kvm headers with the kernel originals.
- Add vendor events and metrics for Intel's Icelake Server & Client.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-for-v5.14-2021-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tool updates from Arnaldo Carvalho de Melo:
"Tools:
- Add cgroup support for 'perf top' (-G).
- Add support for KVM MSRs in 'perf kvm stat'
- Support probes on init functions in 'perf probe', to support the
bootconfig format.
- Improve error reporting in 'perf probe'.
- No need to synthesize BUILD_ID records in 'perf inject' if the
MMAP2 records have build ids already.
- Allow toggling source code ('s' hotkey) in 'perf annotate' in all
lines.
- Add itrace options support to 'perf annotate'.
- Support to custom DSO filters for 'perf script'.
Hardware enablement:
- Support the HYBRID_TOPOLOGY and HYBRID_CPU_PMU_CAPS features in the
perf.data file header.
- Support PMU prefix for mem-load and mem-store events, to support
hybrid (BIG little) CPUs such as Intel's Alderlake.
- Support hybrid CPUs in 'perf mem' and 'perf c2c'.
Hardware tracing:
- Intel PT now supports tracing KVM guests.
- Timestamp improvements for ARM's Coresight.
Build:
- Add 'make -C tools/perf build-test' entries for
libopencsd/CORESIGHT=1 and libbpf/LIBBPF_DYNAMIC=1.
- Use bison's --file-prefix-map option to avoid storing full paths
when using O= in the perf build.
Tests:
- Improve the 'perf test' entries for libpfm4 and BPF counters.
Misc:
- Sync msr-index.h, mount.h, kvm headers with the kernel originals.
- Add vendor events and metrics for Intel's Icelake Server & Client"
* tag 'perf-tools-for-v5.14-2021-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (123 commits)
perf session: Add missing evlist__delete when deleting a session
perf annotate: Allow 's' on source code lines
perf dlfilter: Add object_code() to perf_dlfilter_fns
perf dlfilter: Add attr() to perf_dlfilter_fns
perf dlfilter: Add srcline() to perf_dlfilter_fns
perf dlfilter: Add insn() to perf_dlfilter_fns
perf dlfilter: Add resolve_address() to perf_dlfilter_fns
perf build: Install perf_dlfilter.h
perf script: Add option to pass arguments to dlfilters
perf script: Add option to list dlfilters
perf script: Add dlfilter__filter_event_early()
perf script: Add API for filtering via dynamically loaded shared object
perf llvm: Return -ENOMEM when asprintf() fails
perf cs-etm: Delay decode of non-timeless data until cs_etm__flush_events()
tools headers UAPI: Synch KVM's svm.h header with the kernel
tools kvm headers arm64: Update KVM headers from the kernel sources
tools headers UAPI: Sync linux/kvm.h with the kernel sources
tools headers cpufeatures: Sync with the kernel sources
tools include UAPI: Update linux/mount.h copy
tools arch x86: Sync the msr-index.h copy with the kernel sources
...
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Linus Torvalds
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71bd934101 |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "190 patches. Subsystems affected by this patch series: mm (hugetlb, userfaultfd, vmscan, kconfig, proc, z3fold, zbud, ras, mempolicy, memblock, migration, thp, nommu, kconfig, madvise, memory-hotplug, zswap, zsmalloc, zram, cleanups, kfence, and hmm), procfs, sysctl, misc, core-kernel, lib, lz4, checkpatch, init, kprobes, nilfs2, hfs, signals, exec, kcov, selftests, compress/decompress, and ipc" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (190 commits) ipc/util.c: use binary search for max_idx ipc/sem.c: use READ_ONCE()/WRITE_ONCE() for use_global_lock ipc: use kmalloc for msg_queue and shmid_kernel ipc sem: use kvmalloc for sem_undo allocation lib/decompressors: remove set but not used variabled 'level' selftests/vm/pkeys: exercise x86 XSAVE init state selftests/vm/pkeys: refill shadow register after implicit kernel write selftests/vm/pkeys: handle negative sys_pkey_alloc() return code selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random kcov: add __no_sanitize_coverage to fix noinstr for all architectures exec: remove checks in __register_bimfmt() x86: signal: don't do sas_ss_reset() until we are certain that sigframe won't be abandoned hfsplus: report create_date to kstat.btime hfsplus: remove unnecessary oom message nilfs2: remove redundant continue statement in a while-loop kprobes: remove duplicated strong free_insn_page in x86 and s390 init: print out unknown kernel parameters checkpatch: do not complain about positive return values starting with EPOLL checkpatch: improve the indented label test checkpatch: scripts/spdxcheck.py now requires python3 ... |
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Linus Torvalds
|
3dbdb38e28 |
Merge branch 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo: - cgroup.kill is added which implements atomic killing of the whole subtree. Down the line, this should be able to replace the multiple userland implementations of "keep killing till empty". - PSI can now be turned off at boot time to avoid overhead for configurations which don't care about PSI. * 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: make per-cgroup pressure stall tracking configurable cgroup: Fix kernel-doc cgroup: inline cgroup_task_freeze() tests/cgroup: test cgroup.kill tests/cgroup: move cg_wait_for(), cg_prepare_for_wait() tests/cgroup: use cgroup.kill in cg_killall() docs/cgroup: add entry for cgroup.kill cgroup: introduce cgroup.kill |
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Florian Westphal
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37d220b58d |
selftest: netfilter: add test case for unreplied tcp connections
TCP connections in UNREPLIED state (only SYN seen) can be kept alive indefinitely, as each SYN re-sets the timeout. This means that even if a peer has closed its socket the entry never times out. This also prevents re-evaluation of configured NAT rules. Add a test case that sets SYN timeout to 10 seconds, then check that the nat redirection added later eventually takes effect. This is based off a repro script from Antonio Ojea. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
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Yangbo Lu
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2214d70324 |
selftests/net: timestamping: support binding PHC
Support binding PHC of PTP vclock for timestamping. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Riccardo Mancini
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cf96b8e45a |
perf session: Add missing evlist__delete when deleting a session
ASan reports a memory leak caused by evlist not being deleted on exit in perf-report, perf-script and perf-data. The problem is caused by evlist->session not being deleted, which is allocated in perf_session__read_header, called in perf_session__new if perf_data is in read mode. In case of write mode, the session->evlist is filled by the caller. This patch solves the problem by calling evlist__delete in perf_session__delete if perf_data is in read mode. Changes in v2: - call evlist__delete from within perf_session__delete v1: https://lore.kernel.org/lkml/20210621234317.235545-1-rickyman7@gmail.com/ ASan report follows: $ ./perf script report flamegraph ================================================================= ==227640==ERROR: LeakSanitizer: detected memory leaks <SNIP unrelated> Indirect leak of 2704 byte(s) in 1 object(s) allocated from: #0 0x4f4137 in calloc (/home/user/linux/tools/perf/perf+0x4f4137) #1 0xbe3d56 in zalloc /home/user/linux/tools/lib/perf/../../lib/zalloc.c:8:9 #2 0x7f999e in evlist__new /home/user/linux/tools/perf/util/evlist.c:77:26 #3 0x8ad938 in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3797:20 #4 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6 #5 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10 #6 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12 #7 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11 #8 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8 #9 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2 #10 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3 #11 0x7f5260654b74 (/lib64/libc.so.6+0x27b74) Indirect leak of 568 byte(s) in 1 object(s) allocated from: #0 0x4f4137 in calloc (/home/user/linux/tools/perf/perf+0x4f4137) #1 0xbe3d56 in zalloc /home/user/linux/tools/lib/perf/../../lib/zalloc.c:8:9 #2 0x80ce88 in evsel__new_idx /home/user/linux/tools/perf/util/evsel.c:268:24 #3 0x8aed93 in evsel__new /home/user/linux/tools/perf/util/evsel.h:210:9 #4 0x8ae07e in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3853:11 #5 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6 #6 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10 #7 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12 #8 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11 #9 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8 #10 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2 #11 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3 #12 0x7f5260654b74 (/lib64/libc.so.6+0x27b74) Indirect leak of 264 byte(s) in 1 object(s) allocated from: #0 0x4f4137 in calloc (/home/user/linux/tools/perf/perf+0x4f4137) #1 0xbe3d56 in zalloc /home/user/linux/tools/lib/perf/../../lib/zalloc.c:8:9 #2 0xbe3e70 in xyarray__new /home/user/linux/tools/lib/perf/xyarray.c:10:23 #3 0xbd7754 in perf_evsel__alloc_id /home/user/linux/tools/lib/perf/evsel.c:361:21 #4 0x8ae201 in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3871:7 #5 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6 #6 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10 #7 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12 #8 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11 #9 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8 #10 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2 #11 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3 #12 0x7f5260654b74 (/lib64/libc.so.6+0x27b74) Indirect leak of 32 byte(s) in 1 object(s) allocated from: #0 0x4f4137 in calloc (/home/user/linux/tools/perf/perf+0x4f4137) #1 0xbe3d56 in zalloc /home/user/linux/tools/lib/perf/../../lib/zalloc.c:8:9 #2 0xbd77e0 in perf_evsel__alloc_id /home/user/linux/tools/lib/perf/evsel.c:365:14 #3 0x8ae201 in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3871:7 #4 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6 #5 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10 #6 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12 #7 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11 #8 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8 #9 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2 #10 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3 #11 0x7f5260654b74 (/lib64/libc.so.6+0x27b74) Indirect leak of 7 byte(s) in 1 object(s) allocated from: #0 0x4b8207 in strdup (/home/user/linux/tools/perf/perf+0x4b8207) #1 0x8b4459 in evlist__set_event_name /home/user/linux/tools/perf/util/header.c:2292:16 #2 0x89d862 in process_event_desc /home/user/linux/tools/perf/util/header.c:2313:3 #3 0x8af319 in perf_file_section__process /home/user/linux/tools/perf/util/header.c:3651:9 #4 0x8aa6e9 in perf_header__process_sections /home/user/linux/tools/perf/util/header.c:3427:9 #5 0x8ae3e7 in perf_session__read_header /home/user/linux/tools/perf/util/header.c:3886:2 #6 0x8ec714 in perf_session__open /home/user/linux/tools/perf/util/session.c:109:6 #7 0x8ebe83 in perf_session__new /home/user/linux/tools/perf/util/session.c:213:10 #8 0x60c6de in cmd_script /home/user/linux/tools/perf/builtin-script.c:3856:12 #9 0x7b2930 in run_builtin /home/user/linux/tools/perf/perf.c:313:11 #10 0x7b120f in handle_internal_command /home/user/linux/tools/perf/perf.c:365:8 #11 0x7b2493 in run_argv /home/user/linux/tools/perf/perf.c:409:2 #12 0x7b0c89 in main /home/user/linux/tools/perf/perf.c:539:3 #13 0x7f5260654b74 (/lib64/libc.so.6+0x27b74) SUMMARY: AddressSanitizer: 3728 byte(s) leaked in 7 allocation(s). Signed-off-by: Riccardo Mancini <rickyman7@gmail.com> Acked-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20210624231926.212208-1-rickyman7@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Riccardo Mancini
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6de249d66d |
perf annotate: Allow 's' on source code lines
In perf annotate, when 's' is pressed on a line containing source code, it shows the message "Only available for assembly lines". This patch gets rid of the error, moving the cursr to the next available asm line (or the closest previous one if no asm line is found moving forwards), before hiding source code lines. Changes in v2: - handle case of no asm line found in annotate_browser__find_next_asm_line by returning NULL and handling error in caller. Signed-off-by: Riccardo Mancini <rickyman7@gmail.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin Liška <mliska@suse.cz> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20210624223423.189550-1-rickyman7@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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ec4c00fedb |
perf dlfilter: Add object_code() to perf_dlfilter_fns
Add a function, for use by dlfilters, to read object code. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-11-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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6495e76252 |
perf dlfilter: Add attr() to perf_dlfilter_fns
Add a function, for use by dlfilters, to return the perf_event_attr structure. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-10-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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244afc0c93 |
perf dlfilter: Add srcline() to perf_dlfilter_fns
Add a function, for use by dlfilters, to return source code file name and line number. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-9-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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e35995effd |
perf dlfilter: Add insn() to perf_dlfilter_fns
Add a function, for use by dlfilters, to return instruction bytes. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-8-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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f645744c50 |
perf dlfilter: Add resolve_address() to perf_dlfilter_fns
Add a function, for use by dlfilters, to resolve addresses from branch stacks or callchains. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-7-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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0beb218315 |
perf build: Install perf_dlfilter.h
Users of the --dlfilter option need to include perf_dlfilter.h in their filters. Install it to the include path. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-6-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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3d032a2516 |
perf script: Add option to pass arguments to dlfilters
Add option --dlarg to pass arguments to dlfilters. The --dlarg option can be repeated to pass more than 1 argument. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-5-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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638e2b9984 |
perf script: Add option to list dlfilters
Add option --list-dlfilters to list dlfilters in the current directory or the exec-path e.g. ~/libexec/perf-core/dlfilters. Use with option -v (must come before option --list-dlfilters) to show long descriptions. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-4-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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9bde93a79a |
perf script: Add dlfilter__filter_event_early()
filter_event_early() can be more than 30% faster than filter_event() because it is called before internal filtering. In other respects it is the same as filter_event(), except that it will be passed events that have yet to be filtered out. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Adrian Hunter
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291961fc3c |
perf script: Add API for filtering via dynamically loaded shared object
In some cases, users want to filter very large amounts of data (e.g. from AUX area tracing like Intel PT) looking for something specific. While scripting such as Python can be used, Python is 10 to 20 times slower than C. So define a C API so that custom filters can be written and loaded. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210627131818.810-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Arnaldo Carvalho de Melo
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c435c166dc |
perf llvm: Return -ENOMEM when asprintf() fails
Zhihao sent a patch but it made llvm__compile_bpf() return what asprintf() returns on error, which is just -1, but since this function returns -errno, fix it by returning -ENOMEM for this case instead. Fixes: |
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James Clark
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0323dea318 |
perf cs-etm: Delay decode of non-timeless data until cs_etm__flush_events()
Currently, timeless mode starts the decode on PERF_RECORD_EXIT, and non-timeless mode starts decoding on the fist PERF_RECORD_AUX record. This can cause the "data has no samples!" error if the first PERF_RECORD_AUX record comes before the first (or any relevant) PERF_RECORD_MMAP2 record because the mmaps are required by the decoder to access the binary data. This change pushes the start of non-timeless decoding to the very end of parsing the file. The PERF_RECORD_EXIT event can't be used because it might not exist in system-wide or snapshot modes. I have not been able to find the exact cause for the events to be intermittently in the wrong order in the basic scenario: perf record -e cs_etm/@tmc_etr0/u top But it can be made to happen every time with the --delay option. This is because "enable_on_exec" is disabled, which causes tracing to start before the process to be launched is exec'd. For example: perf record -e cs_etm/@tmc_etr0/u --delay=1 top perf report -D | grep 'AUX\|MAP' 0 16714475632740 0x520 [0x40]: PERF_RECORD_AUX offset: 0 size: 0x30 flags: 0 [] 0 16714476494960 0x5d0 [0x40]: PERF_RECORD_AUX offset: 0x30 size: 0x30 flags: 0 [] 0 16714478208900 0x660 [0x40]: PERF_RECORD_AUX offset: 0x60 size: 0x30 flags: 0 [] 4294967295 16714478293340 0x700 [0x70]: PERF_RECORD_MMAP2 8712/8712: [0x557a460000(0x54000) @ 0 00:17 5329258 0]: r-xp /usr/bin/top 4294967295 16714478353020 0x770 [0x88]: PERF_RECORD_MMAP2 8712/8712: [0x7f86f72000(0x34000) @ 0 00:17 5214354 0]: r-xp /usr/lib/aarch64-linux-gnu/ld-2.31.so Another scenario in which decoding from the first aux record fails is a workload that forks. Although the aux record comes after 'bash', it comes before 'top', which is what we are interested in. For example: perf record -e cs_etm/@tmc_etr0/u -- bash -c top perf report -D | grep 'AUX\|MAP' 4294967295 16853946421300 0x510 [0x70]: PERF_RECORD_MMAP2 8723/8723: [0x558f280000(0x142000) @ 0 00:17 5213953 0]: r-xp /usr/bin/bash 4294967295 16853946543560 0x580 [0x88]: PERF_RECORD_MMAP2 8723/8723: [0x7fbba6e000(0x34000) @ 0 00:17 5214354 0]: r-xp /usr/lib/aarch64-linux-gnu/ld-2.31.so 4294967295 16853946628420 0x608 [0x68]: PERF_RECORD_MMAP2 8723/8723: [0x7fbba9e000(0x1000) @ 0 00:00 0 0]: r-xp [vdso] 0 16853947067300 0x690 [0x40]: PERF_RECORD_AUX offset: 0 size: 0x3a60 flags: 0 [] ... 0 16853966602580 0x1758 [0x40]: PERF_RECORD_AUX offset: 0xc2470 size: 0x30 flags: 0 [] 4294967295 16853967119860 0x1818 [0x70]: PERF_RECORD_MMAP2 8723/8723: [0x5559e70000(0x54000) @ 0 00:17 5329258 0]: r-xp /usr/bin/top 4294967295 16853967181620 0x1888 [0x88]: PERF_RECORD_MMAP2 8723/8723: [0x7f9ed06000(0x34000) @ 0 00:17 5214354 0]: r-xp /usr/lib/aarch64-linux-gnu/ld-2.31.so 4294967295 16853967237180 0x1910 [0x68]: PERF_RECORD_MMAP2 8723/8723: [0x7f9ed36000(0x1000) @ 0 00:00 0 0]: r-xp [vdso] A third scenario is when the majority of time is spent in a shared library that is not loaded at startup. For example a dynamically loaded plugin. Testing ======= Testing was done by checking if any samples that are present in the old output are missing from the new output. Timestamps must be stripped out with awk because now they are set to the last AUX sample, rather than the first: ./perf script $4 | awk '!($4="")' > new.script ./perf-default script $4 | awk '!($4="")' > default.script comm -13 <(sort -u new.script) <(sort -u default.script) Testing showed that the new output is a superset of the old. When lines appear in the comm output, it is not because they are missing but because [unknown] is now resolved to sensible locations. For example last putp branch here now resolves to libtinfo, so it's not missing from the output, but is actually improved: Old: top 305 [001] 1 branches:uH: 402830 _init+0x30 (/usr/bin/top.procps) => 404a1c [unknown] (/usr/bin/top.procps) top 305 [001] 1 branches:uH: 404a20 [unknown] (/usr/bin/top.procps) => 402970 putp@plt+0x0 (/usr/bin/top.procps) top 305 [001] 1 branches:uH: 40297c putp@plt+0xc (/usr/bin/top.procps) => 0 [unknown] ([unknown]) New: top 305 [001] 1 branches:uH: 402830 _init+0x30 (/usr/bin/top.procps) => 404a1c [unknown] (/usr/bin/top.procps) top 305 [001] 1 branches:uH: 404a20 [unknown] (/usr/bin/top.procps) => 402970 putp@plt+0x0 (/usr/bin/top.procps) top 305 [001] 1 branches:uH: 40297c putp@plt+0xc (/usr/bin/top.procps) => 7f8ab39208 putp+0x0 (/lib/libtinfo.so.5.9) In the following two modes, decoding now works and the "data has no samples!" error is not displayed any more: perf record -e cs_etm/@tmc_etr0/u -- bash -c top perf record -e cs_etm/@tmc_etr0/u --delay=1 top In snapshot mode, there is also an improvement to decoding. Previously samples for the 'kill' process that was used to send SIGUSR2 were completely missing, because the process hadn't started yet. But now there are additional samples present: perf record -e cs_etm/@tmc_etr0/u --snapshot -a perf script stress 19380 [003] 161627.938153: 1000000 instructions:uH: aaaabb612fb4 [unknown] (/usr/bin/stress) kill 19644 [000] 161627.938153: 1000000 instructions:uH: ffffae0ef210 [unknown] (/lib/aarch64-linux-gnu/ld-2.27.so) stress 19380 [003] 161627.938153: 1000000 instructions:uH: ffff9e754d40 random_r+0x20 (/lib/aarch64-linux-gnu/libc-2.27.so) Also tested was the round trip of 'perf inject' followed by 'perf report' which has the same differences and improvements. Signed-off-by: James Clark <james.clark@arm.com> Reviewed-by: Leo Yan <leo.yan@linaro.org> Tested-by: Leo Yan <leo.yan@linaro.org> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Al Grant <al.grant@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Branislav Rankov <branislav.rankov@arm.com> Cc: Denis Nikitin <denik@chromium.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lore.kernel.org/lkml/20210609130421.13934-1-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Arnaldo Carvalho de Melo
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f88bb1cb3e |
tools headers UAPI: Synch KVM's svm.h header with the kernel
To pick up the changes from:
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Arnaldo Carvalho de Melo
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795c4ab87e |
tools kvm headers arm64: Update KVM headers from the kernel sources
To pick the changes from:
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Arnaldo Carvalho de Melo
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e48f62aece |
tools headers UAPI: Sync linux/kvm.h with the kernel sources
To pick the changes in: |
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Arnaldo Carvalho de Melo
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cc200a7de9 |
tools headers cpufeatures: Sync with the kernel sources
To pick the changes from: |
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Arnaldo Carvalho de Melo
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14c6ef2b55 |
tools include UAPI: Update linux/mount.h copy
To pick the changes from:
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Arnaldo Carvalho de Melo
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04df0dc118 |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes from these csets:
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Leo Yan
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8941ba502f |
perf arm-spe: Don't wait for PERF_RECORD_EXIT event
When decode Arm SPE trace, it waits for PERF_RECORD_EXIT event (the last perf event) for processing trace data, which is needless and even might cause logic error, e.g. it might fail to correlate perf events with Arm SPE events correctly. So this patch removes the condition checking for PERF_RECORD_EXIT event. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: James Clark <james.clark@arm.com> Tested-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Al Grant <Al.Grant@arm.com> Cc: Dave Martin <Dave.Martin@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20210519071939.1598923-6-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Leo Yan
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afb5e9e47f |
perf arm-spe: Bail out if the trace is later than perf event
It's possible that record in Arm SPE trace is later than perf event and vice versa. This asks to correlate the perf events and Arm SPE synthesized events to be processed in the manner of correct timing. To achieve the time ordering, this patch reverses the flow, it firstly calls arm_spe_sample() and then calls arm_spe_decode(). By comparing the timestamp value and detect the perf event is coming earlier than Arm SPE trace data, it bails out from the decoding loop, the last record is pushed into auxtrace stack and is deferred to generate sample. To track the timestamp, everytime it updates timestamp for the latest record. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: James Clark <james.clark@arm.com> Tested-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Al Grant <Al.Grant@arm.com> Cc: Dave Martin <Dave.Martin@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20210519071939.1598923-5-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Leo Yan
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85498f756f |
perf arm-spe: Assign kernel time to synthesized event
In current code, it assigns the arch timer counter to the synthesized samples Arm SPE trace, thus the samples don't contain the kernel time but only contain the raw counter value. To fix the issue, this patch converts the timer counter to kernel time and assigns it to sample timestamp. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: James Clark <james.clark@arm.com> Tested-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Al Grant <Al.Grant@arm.com> Cc: Dave Martin <Dave.Martin@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20210519071939.1598923-4-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Leo Yan
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630519014c |
perf arm-spe: Convert event kernel time to counter value
When handle a perf event, Arm SPE decoder needs to decide if this perf event is earlier or later than the samples from Arm SPE trace data; to do comparision, it needs to use the same unit for the time. This patch converts the event kernel time to arch timer's counter value, thus it can be used to compare with counter value contained in Arm SPE Timestamp packet. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: James Clark <james.clark@arm.com> Tested-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Al Grant <Al.Grant@arm.com> Cc: Dave Martin <Dave.Martin@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20210519071939.1598923-3-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Leo Yan
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c210c30696 |
perf arm-spe: Save clock parameters from TIME_CONV event
During the recording phase, "perf record" tool synthesizes event PERF_RECORD_TIME_CONV for the hardware clock parameters and saves the event into the data file. Afterwards, when processing the data file, the event TIME_CONV will be processed at the very early time and is stored into session context. This patch extracts these parameters from the session context and saves into the structure "spe->tc" with the type perf_tsc_conversion, so that the parameters are ready for conversion between clock counter and time stamp. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: James Clark <james.clark@arm.com> Tested-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Al Grant <Al.Grant@arm.com> Cc: Dave Martin <Dave.Martin@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20210519071939.1598923-2-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Leo Yan
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2f01c200d4 |
perf cs-etm: Remove callback cs_etm_find_snapshot()
The callback cs_etm_find_snapshot() is invoked for snapshot mode, its main purpose is to find the correct AUX trace data and returns "head" and "old" (we can call "old" as "old head") to the caller, the caller __auxtrace_mmap__read() uses these two pointers to decide the AUX trace data size. This patch removes cs_etm_find_snapshot() with below reasons: - The first thing in cs_etm_find_snapshot() is to check if the head has wrapped around, if it is not, directly bails out. The checking is pointless, this is because the "head" and "old" pointers both are monotonical increasing so they never wrap around. - cs_etm_find_snapshot() adjusts the "head" and "old" pointers and assumes the AUX ring buffer is fully filled with the hardware trace data, so it always subtracts the difference "mm->len" from "head" to get "old". Let's imagine the snapshot is taken in very short interval, the tracers only fill a small chunk of the trace data into the AUX ring buffer, in this case, it's wrongly to copy the whole the AUX ring buffer to perf file. - As the "head" and "old" pointers are monotonically increased, the function __auxtrace_mmap__read() handles these two pointers properly. It calculates the reminders for these two pointers, and the size is clamped to be never more than "snapshot_size". We can simply reply on the function __auxtrace_mmap__read() to calculate the correct result for data copying, it's not necessary to add Arm CoreSight specific callback. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: James Clark <james.clark@arm.com> Tested-by: James Clark <james.clark@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Daniel Kiss <daniel.kiss@arm.com> Cc: Denis Nikitin <denik@google.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: coresight@lists.linaro.org Link: http://lore.kernel.org/lkml/20210701093537.90759-3-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Namhyung Kim
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d6a735ef32 |
perf bpf_counter: Move common functions to bpf_counter.h
Some helper functions will be used for cgroup counting too. Move them
to a header file for sharing.
Committer notes:
Fix the build on older systems with:
- struct bpf_map_info map_info = {0};
+ struct bpf_map_info map_info = { .id = 0, };
This wasn't breaking the build in such systems as bpf_counter.c isn't
built due to:
tools/perf/util/Build:
perf-$(CONFIG_PERF_BPF_SKEL) += bpf_counter.o
The bpf_counter.h file on the other hand is included from places that
are built everywhere.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210625071826.608504-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Dave Hansen
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d892454b68 |
selftests/vm/pkeys: exercise x86 XSAVE init state
On x86, there is a set of instructions used to save and restore register state collectively known as the XSAVE architecture. There are about a dozen different features managed with XSAVE. The protection keys register, PKRU, is one of those features. The hardware optimizes XSAVE by tracking when the state has not changed from its initial (init) state. In this case, it can avoid the cost of writing state to memory (it would usually just be a bunch of 0's). When the pkey register is 0x0 the hardware optionally choose to track the register as being in the init state (optimize away the writes). AMD CPUs do this more aggressively compared to Intel. On x86, PKRU is rarely in its (very permissive) init state. Instead, the value defaults to something very restrictive. It is not surprising that bugs have popped up in the rare cases when PKRU reaches its init state. Add a protection key selftest which gets the protection keys register into its init state in a way that should work on Intel and AMD. Then, do a bunch of pkey register reads to watch for inadvertent changes. This adds "-mxsave" to CFLAGS for all the x86 vm selftests in order to allow use of the XSAVE instruction __builtin functions. This will make the builtins available on all of the vm selftests, but is expected to be harmless. Link: https://lkml.kernel.org/r/20210611164202.1849B712@viggo.jf.intel.com Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Ram Pai <linuxram@us.ibm.com> Cc: Sandipan Das <sandipan@linux.ibm.com> Cc: Florian Weimer <fweimer@redhat.com> Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Dave Hansen
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6039ca2549 |
selftests/vm/pkeys: refill shadow register after implicit kernel write
The pkey test code keeps a "shadow" of the pkey register around. This
ensures that any bugs which might write to the register can be caught more
quickly.
Generally, userspace has a good idea when the kernel is going to write to
the register. For instance, alloc_pkey() is passed a permission mask.
The caller of alloc_pkey() can update the shadow based on the return value
and the mask.
But, the kernel can also modify the pkey register in a more sneaky way.
For mprotect(PROT_EXEC) mappings, the kernel will allocate a pkey and
write the pkey register to create an execute-only mapping. The kernel
never tells userspace what key it uses for this.
This can cause the test to fail with messages like:
protection_keys_64.2: pkey-helpers.h:132: _read_pkey_reg: Assertion `pkey_reg == shadow_pkey_reg' failed.
because the shadow was not updated with the new kernel-set value.
Forcibly update the shadow value immediately after an mprotect().
Link: https://lkml.kernel.org/r/20210611164200.EF76AB73@viggo.jf.intel.com
Fixes:
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Dave Hansen
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bf68294a2e |
selftests/vm/pkeys: handle negative sys_pkey_alloc() return code
The alloc_pkey() sefltest function wraps the sys_pkey_alloc() system call.
On success, it updates its "shadow" register value because
sys_pkey_alloc() updates the real register.
But, the success check is wrong. pkey_alloc() considers any non-zero
return code to indicate success where the pkey register will be modified.
This fails to take negative return codes into account.
Consider only a positive return value as a successful call.
Link: https://lkml.kernel.org/r/20210611164157.87AB4246@viggo.jf.intel.com
Fixes:
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Dave Hansen
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f36ef40762 |
selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
Patch series "selftests/vm/pkeys: Bug fixes and a new test".
There has been a lot of activity on the x86 front around the XSAVE
architecture which is used to context-switch processor state (among other
things). In addition, AMD has recently joined the protection keys club by
adding processor support for PKU.
The AMD implementation helped uncover a kernel bug around the PKRU "init
state", which actually applied to Intel's implementation but was just
harder to hit. This series adds a test which is expected to help find
this class of bug both on AMD and Intel. All the work around pkeys on x86
also uncovered a few bugs in the selftest.
This patch (of 4):
The "random" pkey allocation code currently does the good old:
srand((unsigned int)time(NULL));
*But*, it unfortunately does this on every random pkey allocation.
There may be thousands of these a second. time() has a one second
resolution. So, each time alloc_random_pkey() is called, the PRNG is
*RESET* to time(). This is nasty. Normally, if you do:
srand(<ANYTHING>);
foo = rand();
bar = rand();
You'll be quite guaranteed that 'foo' and 'bar' are different. But, if
you do:
srand(1);
foo = rand();
srand(1);
bar = rand();
You are quite guaranteed that 'foo' and 'bar' are the *SAME*. The recent
"fix" effectively forced the test case to use the same "random" pkey for
the whole test, unless the test run crossed a second boundary.
Only run srand() once at program startup.
This explains some very odd and persistent test failures I've been seeing.
Link: https://lkml.kernel.org/r/20210611164153.91B76FB8@viggo.jf.intel.com
Link: https://lkml.kernel.org/r/20210611164155.192D00FF@viggo.jf.intel.com
Fixes:
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Alistair Popple
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b659baea75 |
mm: selftests for exclusive device memory
Adds some selftests for exclusive device memory. Link: https://lkml.kernel.org/r/20210616105937.23201-9-apopple@nvidia.com Signed-off-by: Alistair Popple <apopple@nvidia.com> Acked-by: Jason Gunthorpe <jgg@nvidia.com> Tested-by: Ralph Campbell <rcampbell@nvidia.com> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hugh Dickins <hughd@google.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> Cc: Peter Xu <peterx@redhat.com> Cc: Shakeel Butt <shakeelb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Namhyung Kim
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21bcc72661 |
perf tools: Add cgroup_is_v2() helper
The cgroup_is_v2() is to check if the given subsystem is mounted on cgroup v2 or not. It'll be used by BPF cgroup code later. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ian Rogers <irogers@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20210625071826.608504-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Namhyung Kim
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69e874db4d |
perf tools: Add read_cgroup_id() function
The read_cgroup_id() is to read a cgroup id from a file handle using name_to_handle_at(2) for the given cgroup. It'll be used by bperf cgroup stat later. Committer notes: -int read_cgroup_id(struct cgroup *cgrp) +static inline int read_cgroup_id(struct cgroup *cgrp __maybe_unused) To fix the build when HAVE_FILE_HANDLE is not defined. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20210625071826.608504-2-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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David Hildenbrand
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e5bfac53e3 |
selftests/vm: add test for MADV_POPULATE_(READ|WRITE)
Let's add a simple test for MADV_POPULATE_READ and MADV_POPULATE_WRITE, verifying some error handling, that population works, and that softdirty tracking works as expected. For now, limit the test to private anonymous memory. Link: https://lkml.kernel.org/r/20210419135443.12822-6-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Michal Hocko <mhocko@suse.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Jann Horn <jannh@google.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Rik van Riel <riel@surriel.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Helge Deller <deller@gmx.de> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Peter Xu <peterx@redhat.com> Cc: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Shuah Khan <shuah@kernel.org> Cc: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Hildenbrand
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2abdd8b8a2 |
selftests/vm: add protection_keys_32 / protection_keys_64 to gitignore
We missed adding two binaries to gitignore. Link: https://lkml.kernel.org/r/20210419135443.12822-5-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Peter Xu <peterx@redhat.com> Cc: Ram Pai <linuxram@us.ibm.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Chris Zankel <chris@zankel.net> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Helge Deller <deller@gmx.de> Cc: Hugh Dickins <hughd@google.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Jann Horn <jannh@google.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Rik van Riel <riel@surriel.com> Cc: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Axel Rasmussen
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4a8f021ba0 |
userfaultfd/selftests: exercise minor fault handling shmem support
Enable test_uffdio_minor for test_type == TEST_SHMEM, and modify the test slightly to pass in / check for the right feature flags. Link: https://lkml.kernel.org/r/20210503180737.2487560-11-axelrasmussen@google.com Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> Reviewed-by: Peter Xu <peterx@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Axel Rasmussen
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8ba6e86408 |
userfaultfd/selftests: reinitialize test context in each test
Currently, the context (fds, mmap-ed areas, etc.) are global. Each test mutates this state in some way, in some cases really "clobbering it" (e.g., the events test mremap-ing area_dst over the top of area_src, or the minor faults tests overwriting the count_verify values in the test areas). We run the tests in a particular order, each test is careful to make the right assumptions about its starting state, etc. But, this is fragile. It's better for a test's success or failure to not depend on what some other prior test case did to the global state. To that end, clear and reinitialize the test context at the start of each test case, so whatever prior test cases did doesn't affect future tests. This is particularly relevant to this series because the events test's mremap of area_dst screws up assumptions the minor fault test was relying on. This wasn't a problem for hugetlb, as we don't mremap in that case. [peterx@redhat.com: fix conflict between this patch and the uffd pagemap series] Link: https://lkml.kernel.org/r/YKQqKrl+/cQ1utrb@t490s Link: https://lkml.kernel.org/r/20210503180737.2487560-10-axelrasmussen@google.com Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Axel Rasmussen
|
5bb23edb18 |
userfaultfd/selftests: create alias mappings in the shmem test
Previously, we just allocated two shm areas: area_src and area_dst. With this commit, change this so we also allocate area_src_alias, and area_dst_alias. area_*_alias and area_* (respectively) point to the same underlying physical pages, but are different VMAs. In a future commit in this series, we'll leverage this setup to exercise minor fault handling support for shmem, just like we do in the hugetlb_shared test. Link: https://lkml.kernel.org/r/20210503180737.2487560-9-axelrasmussen@google.com Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> Reviewed-by: Peter Xu <peterx@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Axel Rasmussen
|
fa2c2b5818 |
userfaultfd/selftests: use memfd_create for shmem test type
This is a preparatory commit. In the future, we want to be able to setup alias mappings for area_src and area_dst in the shmem test, like we do in the hugetlb_shared test. With a VMA obtained via mmap(MAP_ANONYMOUS | MAP_SHARED), it isn't clear how to do this. So, mmap() with an fd, so we can create alias mappings. Use memfd_create instead of actually passing in a tmpfs path like hugetlb does, since it's more convenient / simpler to run, and works just as well. Future commits will: 1. Setup the alias mappings. 2. Extend our tests to actually take advantage of this, to test new userfaultfd behavior being introduced in this series. Also, a small fix in the area we're changing: when the hugetlb setup fails in main(), pass in the right argv[] so we actually print out the hugetlb file path. Link: https://lkml.kernel.org/r/20210503180737.2487560-8-axelrasmussen@google.com Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> Reviewed-by: Peter Xu <peterx@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Peter Xu
|
eb3b2e0039 |
userfaultfd/selftests: add pagemap uffd-wp test
Add one anonymous specific test to start using pagemap. With pagemap support, we can directly read the uffd-wp bit from pgtable without triggering any fault, so it's easier to do sanity checks in unit tests. Meanwhile this test also leverages the newly introduced MADV_PAGEOUT madvise function to test swap ptes with uffd-wp bit set, and across fork()s. Link: https://lkml.kernel.org/r/20210428225030.9708-7-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Peter Xu
|
42e584eede |
userfaultfd/selftests: unify error handling
Introduce err()/_err() and replace all the different ways to fail the program, mostly "fprintf" and "perror" with tons of exit() calls. Always stop the test program at any failure. Link: https://lkml.kernel.org/r/20210412232753.1012412-6-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Axel Rasmussen <axelrasmussen@google.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Peter Xu
|
de3ca8e4a5 |
userfaultfd/selftests: only dump counts if mode enabled
WP and MINOR modes are conditionally enabled on specific memory types. This patch avoids dumping tons of zeros for those cases when the modes are not supported at all. Link: https://lkml.kernel.org/r/20210412232753.1012412-5-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Axel Rasmussen <axelrasmussen@google.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Peter Xu
|
4e08e18a78 |
userfaultfd/selftests: dropping VERIFY check in locking_thread
It tries to check against all zeros and looped for quite a few times. However after that we'll verify the same page with count_verify, while count_verify can never be zero. So it means if it's a zero page we'll detect it anyways with below code. There's yet another place we conditionally check the fault flag - just do it unconditionally. Link: https://lkml.kernel.org/r/20210412232753.1012412-4-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Axel Rasmussen <axelrasmussen@google.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Peter Xu
|
ba4f8c355e |
userfaultfd/selftests: remove the time() check on delayed uffd
There seems to have no guarantee that time() will return the same for the two calls even if there's no delay, e.g. when a fault is accidentally crossing the changing of a second. Meanwhile, this message is also not helping that much since delay could happen with a lot of reasons, e.g., schedule latency of resolving thread. It may not mean an issue with uffd. Neither do I saw this error triggered either in the past runs. Even if it triggers, it'll be drown in all the rest of test logs. Remove it. Link: https://lkml.kernel.org/r/20210412232753.1012412-3-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Axel Rasmussen <axelrasmussen@google.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Peter Xu
|
d2c6c06fff |
userfaultfd/selftests: use user mode only
Patch series "userfaultfd/selftests: A few cleanups", v2. I wanted to cleanup userfaultfd.c fault handling for a long time. If it's not cleaned, when the new code grows the file it'll also grow the size that needs to be cleaned... This is my attempt to cleanup the userfaultfd selftest on fault handling, to use an err() macro instead of either fprintf() or perror() then another exit() call. The huge cleanup is done in the last patch. The first 4 patches are some other standalone cleanups for the same file, so I put them together. This patch (of 5): Userfaultfd selftest does not need to handle kernel initiated fault. Set user mode so it can be run even if unprivileged_userfaultfd=0 (which is the default). Link: https://lkml.kernel.org/r/20210412232753.1012412-2-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Axel Rasmussen <axelrasmussen@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Brian Geffon <bgeffon@google.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joe Perches <joe@perches.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mina Almasry <almasrymina@google.com> Cc: Oliver Upton <oupton@google.com> Cc: Shaohua Li <shli@fb.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Wang Qing <wangqing@vivo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Nanyong Sun
|
22f3c95186 |
khugepaged: selftests: remove debug_cow
The debug_cow attribute had been removed since commit |
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|
Linus Torvalds
|
dbe69e4337 |
Networking changes for 5.14.
Core:
- BPF:
- add syscall program type and libbpf support for generating
instructions and bindings for in-kernel BPF loaders (BPF loaders
for BPF), this is a stepping stone for signed BPF programs
- infrastructure to migrate TCP child sockets from one listener
to another in the same reuseport group/map to improve flexibility
of service hand-off/restart
- add broadcast support to XDP redirect
- allow bypass of the lockless qdisc to improving performance
(for pktgen: +23% with one thread, +44% with 2 threads)
- add a simpler version of "DO_ONCE()" which does not require
jump labels, intended for slow-path usage
- virtio/vsock: introduce SOCK_SEQPACKET support
- add getsocketopt to retrieve netns cookie
- ip: treat lowest address of a IPv4 subnet as ordinary unicast address
allowing reclaiming of precious IPv4 addresses
- ipv6: use prandom_u32() for ID generation
- ip: add support for more flexible field selection for hashing
across multi-path routes (w/ offload to mlxsw)
- icmp: add support for extended RFC 8335 PROBE (ping)
- seg6: add support for SRv6 End.DT46 behavior
- mptcp:
- DSS checksum support (RFC 8684) to detect middlebox meddling
- support Connection-time 'C' flag
- time stamping support
- sctp: packetization Layer Path MTU Discovery (RFC 8899)
- xfrm: speed up state addition with seq set
- WiFi:
- hidden AP discovery on 6 GHz and other HE 6 GHz improvements
- aggregation handling improvements for some drivers
- minstrel improvements for no-ack frames
- deferred rate control for TXQs to improve reaction times
- switch from round robin to virtual time-based airtime scheduler
- add trace points:
- tcp checksum errors
- openvswitch - action execution, upcalls
- socket errors via sk_error_report
Device APIs:
- devlink: add rate API for hierarchical control of max egress rate
of virtual devices (VFs, SFs etc.)
- don't require RCU read lock to be held around BPF hooks
in NAPI context
- page_pool: generic buffer recycling
New hardware/drivers:
- mobile:
- iosm: PCIe Driver for Intel M.2 Modem
- support for Qualcomm MSM8998 (ipa)
- WiFi: Qualcomm QCN9074 and WCN6855 PCI devices
- sparx5: Microchip SparX-5 family of Enterprise Ethernet switches
- Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)
- NXP SJA1110 Automotive Ethernet 10-port switch
- Qualcomm QCA8327 switch support (qca8k)
- Mikrotik 10/25G NIC (atl1c)
Driver changes:
- ACPI support for some MDIO, MAC and PHY devices from Marvell and NXP
(our first foray into MAC/PHY description via ACPI)
- HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx
- Mellanox/Nvidia NIC (mlx5)
- NIC VF offload of L2 bridging
- support IRQ distribution to Sub-functions
- Marvell (prestera):
- add flower and match all
- devlink trap
- link aggregation
- Netronome (nfp): connection tracking offload
- Intel 1GE (igc): add AF_XDP support
- Marvell DPU (octeontx2): ingress ratelimit offload
- Google vNIC (gve): new ring/descriptor format support
- Qualcomm mobile (rmnet & ipa): inline checksum offload support
- MediaTek WiFi (mt76)
- mt7915 MSI support
- mt7915 Tx status reporting
- mt7915 thermal sensors support
- mt7921 decapsulation offload
- mt7921 enable runtime pm and deep sleep
- Realtek WiFi (rtw88)
- beacon filter support
- Tx antenna path diversity support
- firmware crash information via devcoredump
- Qualcomm 60GHz WiFi (wcn36xx)
- Wake-on-WLAN support with magic packets and GTK rekeying
- Micrel PHY (ksz886x/ksz8081): add cable test support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- BPF:
- add syscall program type and libbpf support for generating
instructions and bindings for in-kernel BPF loaders (BPF loaders
for BPF), this is a stepping stone for signed BPF programs
- infrastructure to migrate TCP child sockets from one listener to
another in the same reuseport group/map to improve flexibility
of service hand-off/restart
- add broadcast support to XDP redirect
- allow bypass of the lockless qdisc to improving performance (for
pktgen: +23% with one thread, +44% with 2 threads)
- add a simpler version of "DO_ONCE()" which does not require jump
labels, intended for slow-path usage
- virtio/vsock: introduce SOCK_SEQPACKET support
- add getsocketopt to retrieve netns cookie
- ip: treat lowest address of a IPv4 subnet as ordinary unicast
address allowing reclaiming of precious IPv4 addresses
- ipv6: use prandom_u32() for ID generation
- ip: add support for more flexible field selection for hashing
across multi-path routes (w/ offload to mlxsw)
- icmp: add support for extended RFC 8335 PROBE (ping)
- seg6: add support for SRv6 End.DT46 behavior
- mptcp:
- DSS checksum support (RFC 8684) to detect middlebox meddling
- support Connection-time 'C' flag
- time stamping support
- sctp: packetization Layer Path MTU Discovery (RFC 8899)
- xfrm: speed up state addition with seq set
- WiFi:
- hidden AP discovery on 6 GHz and other HE 6 GHz improvements
- aggregation handling improvements for some drivers
- minstrel improvements for no-ack frames
- deferred rate control for TXQs to improve reaction times
- switch from round robin to virtual time-based airtime scheduler
- add trace points:
- tcp checksum errors
- openvswitch - action execution, upcalls
- socket errors via sk_error_report
Device APIs:
- devlink: add rate API for hierarchical control of max egress rate
of virtual devices (VFs, SFs etc.)
- don't require RCU read lock to be held around BPF hooks in NAPI
context
- page_pool: generic buffer recycling
New hardware/drivers:
- mobile:
- iosm: PCIe Driver for Intel M.2 Modem
- support for Qualcomm MSM8998 (ipa)
- WiFi: Qualcomm QCN9074 and WCN6855 PCI devices
- sparx5: Microchip SparX-5 family of Enterprise Ethernet switches
- Mellanox BlueField Gigabit Ethernet (control NIC of the DPU)
- NXP SJA1110 Automotive Ethernet 10-port switch
- Qualcomm QCA8327 switch support (qca8k)
- Mikrotik 10/25G NIC (atl1c)
Driver changes:
- ACPI support for some MDIO, MAC and PHY devices from Marvell and
NXP (our first foray into MAC/PHY description via ACPI)
- HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx
- Mellanox/Nvidia NIC (mlx5)
- NIC VF offload of L2 bridging
- support IRQ distribution to Sub-functions
- Marvell (prestera):
- add flower and match all
- devlink trap
- link aggregation
- Netronome (nfp): connection tracking offload
- Intel 1GE (igc): add AF_XDP support
- Marvell DPU (octeontx2): ingress ratelimit offload
- Google vNIC (gve): new ring/descriptor format support
- Qualcomm mobile (rmnet & ipa): inline checksum offload support
- MediaTek WiFi (mt76)
- mt7915 MSI support
- mt7915 Tx status reporting
- mt7915 thermal sensors support
- mt7921 decapsulation offload
- mt7921 enable runtime pm and deep sleep
- Realtek WiFi (rtw88)
- beacon filter support
- Tx antenna path diversity support
- firmware crash information via devcoredump
- Qualcomm WiFi (wcn36xx)
- Wake-on-WLAN support with magic packets and GTK rekeying
- Micrel PHY (ksz886x/ksz8081): add cable test support"
* tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits)
tcp: change ICSK_CA_PRIV_SIZE definition
tcp_yeah: check struct yeah size at compile time
gve: DQO: Fix off by one in gve_rx_dqo()
stmmac: intel: set PCI_D3hot in suspend
stmmac: intel: Enable PHY WOL option in EHL
net: stmmac: option to enable PHY WOL with PMT enabled
net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del}
net: use netdev_info in ndo_dflt_fdb_{add,del}
ptp: Set lookup cookie when creating a PTP PPS source.
net: sock: add trace for socket errors
net: sock: introduce sk_error_report
net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev
net: dsa: include fdb entries pointing to bridge in the host fdb list
net: dsa: include bridge addresses which are local in the host fdb list
net: dsa: sync static FDB entries on foreign interfaces to hardware
net: dsa: install the host MDB and FDB entries in the master's RX filter
net: dsa: reference count the FDB addresses at the cross-chip notifier level
net: dsa: introduce a separate cross-chip notifier type for host FDBs
net: dsa: reference count the MDB entries at the cross-chip notifier level
...
|
|
|
Alexey Bayduraev
|
f20510d552 |
tools lib: Adopt bitmap_intersects() operation from the kernel sources
Adopt bitmap_intersects() routine that tests whether bitmaps bitmap1 and bitmap2 intersects. This routine will be used during thread masks initialization. Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Namhyung Kim <namhyung@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Antonov <alexander.antonov@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Budankov <abudankov@huawei.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Link: http://lore.kernel.org/lkml/f75aa738d8ff8f9cffd7532d671f3ef3deb97a7c.1625065643.git.alexey.v.bayduraev@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Arnaldo Carvalho de Melo
|
857286e4c5 |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
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Linus Torvalds
|
776ba3ad65 |
platform-drivers-x86 for v5.14-1
Highlights:
- New think-lmi driver adding support for changing BIOS settings from
within Linux using the standard firmware-attributes class sysfs API
- MS Surface aggregator-cdev now also supports forwarding events to
user-space (for debugging / new driver development purposes only)
- New intel_skl_int3472 driver this provides the necessary glue to
translate ACPI table information to GPIOs, regulators, etc. for
camera sensors on Intel devices with IPU3 attached MIPI cameras
- A whole bunch of other fixes + device-specific quirk additions
- New devm_work_autocancel() devm-helpers.h function
Note this also contains merges of the following immutable branches/tags
shared with other subsystems:
- platform-drivers-x86-goodix-v5.14-1
- intel-gpio-v5.14-1
- linux-pm/acpi-scan
- devm-helpers-v5.14-1
The following is an automated git shortlog grouped by driver:
ACPI:
- scan: initialize local variable to avoid garbage being returned
- scan: Add function to fetch dependent of ACPI device
- scan: Extend acpi_walk_dep_device_list()
- scan: Rearrange dep_unmet initialization
Add intel_skl_int3472 driver:
- Add intel_skl_int3472 driver
ISST:
- Use numa node id for cpu pci dev mapping
- Optimize CPU to PCI device mapping
Input:
- goodix - platform/x86: touchscreen_dmi - Move upside down quirks to touchscreen_dmi.c
MAINTAINERS:
- Update IRC link for Surface System Aggregator subsystem
- Update info for telemetry
Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans:
- Merge remote-tracking branch 'linux-pm/acpi-scan' into review-hans
Merge tag 'devm-helpers-v5.14-1' into review-hans:
- Merge tag 'devm-helpers-v5.14-1' into review-hans
Merge tag 'intel-gpio-v5.14-1' into review-hans:
- Merge tag 'intel-gpio-v5.14-1' into review-hans
Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans:
- Merge tag 'platform-drivers-x86-goodix-v5.14-1' into review-hans
Remove "default n" entries:
- Remove "default n" entries
Rename hp-wireless to wireless-hotkey:
- Rename hp-wireless to wireless-hotkey
asus-nb-wmi:
- Revert "add support for ASUS ROG Zephyrus G14 and G15"
- Revert "Drop duplicate DMI quirk structures"
dcdbas:
- drop unneeded assignment in host_control_smi()
dell-privacy:
- Add support for Dell hardware privacy
dell-wmi:
- Rename dell-wmi.c to dell-wmi-base.c
dell-wmi-sysman:
- Change user experience when Admin/System Password is modified
- fw_attr_inuse can be static
- Use firmware_attributes_class helper
- Make populate_foo_data functions more robust
dell-wmi-sysman/think-lmi:
- Make fw_attr_class global static
devm-helpers:
- Add resource managed version of work init
docs:
- driver-api: Update Surface Aggregator user-space interface documentation
extcon:
- extcon-max8997: Simplify driver using devm
- extcon-max8997: Fix IRQ freeing at error path
- extcon-max77693.c: Fix potential work-queue cancellation race
- extcon-max14577: Fix potential work-queue cancellation race
firmware_attributes_class:
- Create helper file for handling firmware-attributes class registration events
gpio:
- wcove: Split error handling for CTRL and IRQ registers
- wcove: Unify style of to_reg() with to_ireg()
- wcove: Use IRQ hardware number getter instead of direct access
- crystalcove: remove platform_set_drvdata() + cleanup probe
gpiolib:
- acpi: Add acpi_gpio_get_io_resource()
- acpi: Introduce acpi_get_and_request_gpiod() helper
hdaps:
- Constify static attribute_group struct
ideapad-laptop:
- Ignore VPC event bit 10
intel_cht_int33fe:
- Move to its own subfolder
- Correct "displayport" fwnode reference
intel_ips:
- fix set but unused warning in read_mgtv
intel_pmt_crashlog:
- Constify static attribute_group struct
intel_skl_int3472:
- Uninitialized variable in skl_int3472_handle_gpio_resources()
- Move to intel/ subfolder
- Provide skl_int3472_unregister_clock()
- Provide skl_int3472_unregister_regulator()
- Use ACPI GPIO resource directly
- Fix dependencies (drop CLKDEV_LOOKUP)
- Free ACPI device resources after use
mfd:
- tps68470: Remove tps68470 MFD driver
platform/mellanox:
- mlxreg-hotplug: Revert "move to use request_irq by IRQF_NO_AUTOEN flag"
platform/surface:
- aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_packet_layer.c
- aggregator: Use list_move_tail instead of list_del/list_add_tail in ssh_request_layer.c
- aggregator: Drop unnecessary variable initialization
- aggregator: Do not return uninitialized value
- aggregator_cdev: Add lockdep support
- aggregator_cdev: Allow enabling of events from user-space
- aggregator_cdev: Add support for forwarding events to user-space
- aggregator: Update copyright
- aggregator: Allow enabling of events without notifiers
- aggregator: Allow registering notifiers without enabling events
- dtx: Add missing mutex_destroy() call in failure path
- aggregator: Fix event disable function
- aggregator_registry: Consolidate node groups for 5th- and 6th-gen devices
- aggregator_registry: Add support for 13" Intel Surface Laptop 4
- aggregator_registry: Update comments for 15" AMD Surface Laptop 4
samsung-laptop:
- set debugfs blobs to read only
- use octal numbers for rwx file permissions
tc1100-wmi:
- Constify static attribute_group struct
think-lmi:
- Move kfree(setting->possible_values) to tlmi_attr_setting_release()
- Split current_value to reflect only the value
- Fix issues with duplicate attributes
- Return EINVAL when kbdlang gets set to a 0 length string
- Add missing MODULE_DEVICE_TABLE
- Avoid potential read before start of the buffer
- Fix check for admin password being set
- Add WMI interface support on Lenovo platforms
thinkpad-lmi:
- Remove unused display_name member from struct tlmi_pwd_setting
thinkpad_acpi:
- Add X1 Carbon Gen 9 second fan support
- Fix inconsistent indenting
tools/power/x86/intel-speed-select:
- v1.10 release
- Fix uncore memory frequency display
toshiba_acpi:
- Fix missing error code in toshiba_acpi_setup_keyboard()
toshiba_haps:
- Fix missing newline in pr_debug call in toshiba_haps_notify
touchscreen_dmi:
- Fix Chuwi Hi10 Pro comment
- Add info for the Goodix GT912 panel of TM800A550L tablets
- Add an extra entry for the upside down Goodix touchscreen on Teclast X89 tablets
x86/platform/uv:
- Constify static attribute_group struct
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Merge tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"Highlights:
- New think-lmi driver adding support for changing Lenovo Thinkpad
BIOS settings from within Linux using the standard firmware-
attributes class sysfs API
- MS Surface aggregator-cdev now also supports forwarding events to
user-space (for debugging / new driver development purposes only)
- New intel_skl_int3472 driver this provides the necessary glue to
translate ACPI table information to GPIOs, regulators, etc. for
camera sensors on Intel devices with IPU3 attached MIPI cameras
- A whole bunch of other fixes + device-specific quirk additions
- New devm_work_autocancel() devm-helpers.h function"
* tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (83 commits)
platform/x86: dell-wmi-sysman: Change user experience when Admin/System Password is modified
platform/x86: intel_skl_int3472: Uninitialized variable in skl_int3472_handle_gpio_resources()
platform/x86: think-lmi: Move kfree(setting->possible_values) to tlmi_attr_setting_release()
platform/x86: think-lmi: Split current_value to reflect only the value
platform/x86: think-lmi: Fix issues with duplicate attributes
platform/x86: think-lmi: Return EINVAL when kbdlang gets set to a 0 length string
platform/x86: intel_cht_int33fe: Move to its own subfolder
platform/x86: intel_skl_int3472: Move to intel/ subfolder
platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_clock()
platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_regulator()
platform/x86: intel_skl_int3472: Use ACPI GPIO resource directly
platform/x86: intel_skl_int3472: Fix dependencies (drop CLKDEV_LOOKUP)
platform/x86: intel_skl_int3472: Free ACPI device resources after use
platform/x86: Remove "default n" entries
platform/x86: ISST: Use numa node id for cpu pci dev mapping
platform/x86: ISST: Optimize CPU to PCI device mapping
tools/power/x86/intel-speed-select: v1.10 release
tools/power/x86/intel-speed-select: Fix uncore memory frequency display
extcon: extcon-max8997: Simplify driver using devm
extcon: extcon-max8997: Fix IRQ freeing at error path
...
|
|
|
Linus Torvalds
|
b97902b62a |
fs.openat2.unknown_flags.v5.14
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Merge tag 'fs.openat2.unknown_flags.v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull openat2 fixes from Christian Brauner:
- Remove the unused VALID_UPGRADE_FLAGS define we carried from an
extension to openat2() that we haven't merged. Aleksa might be
getting back to it at some point but just not right now.
- openat2() used to accidently ignore unknown flag values in the upper
32 bits.
The new openat2() syscall verifies that no unknown O-flag values are
set and returns an error to userspace if they are while the older
open syscalls like open() and openat() simply ignore unknown flag
values:
#define O_FLAG_CURRENTLY_INVALID (1 << 31)
struct open_how how = {
.flags = O_RDONLY | O_FLAG_CURRENTLY_INVALID,
.resolve = 0,
};
/* fails */
fd = openat2(-EBADF, "/dev/null", &how, sizeof(how));
/* succeeds */
fd = openat(-EBADF, "/dev/null", O_RDONLY | O_FLAG_CURRENTLY_INVALID);
However, openat2() silently truncates the upper 32 bits meaning:
#define O_FLAG_CURRENTLY_INVALID_LOWER32 (1 << 31)
#define O_FLAG_CURRENTLY_INVALID_UPPER32 (1 << 40)
struct open_how how_lowe32 = {
.flags = O_RDONLY | O_FLAG_CURRENTLY_INVALID_LOWER32,
};
struct open_how how_upper32 = {
.flags = O_RDONLY | O_FLAG_CURRENTLY_INVALID_UPPER32,
};
/* fails */
fd = openat2(-EBADF, "/dev/null", &how_lower32, sizeof(how_lower32));
/* succeeds */
fd = openat2(-EBADF, "/dev/null", &how_upper32, sizeof(how_upper32));
Fix this by preventing the immediate truncation in build_open_flags()
and add a compile-time check to catch when we add flags in the upper
32 bit range.
* tag 'fs.openat2.unknown_flags.v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
test: add openat2() test for invalid upper 32 bit flag value
open: don't silently ignore unknown O-flags in openat2()
fcntl: remove unused VALID_UPGRADE_FLAGS
|
|
|
Linus Torvalds
|
30d1a556a9 |
fs.mount_setattr.nosymfollow.v5.14
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCYNnKNAAKCRCRxhvAZXjc ok/HAQDz3FK3/yeqxH6OLyCedUcD+YBFPPzrfqX+3y6q3z5tGgD9GAGxFXWcMFA2 /cbfmizwh1eJ3WMnbHUp7x6ogpQhWwQ= =PpNs -----END PGP SIGNATURE----- Merge tag 'fs.mount_setattr.nosymfollow.v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull mount_setattr updates from Christian Brauner: "A few releases ago the old mount API gained support for a mount options which prevents following symlinks on a given mount. This adds support for it in the new mount api through the MOUNT_ATTR_NOSYMFOLLOW flag via mount_setattr() and fsmount(). With mount_setattr() that flag can even be applied recursively. There's an additional ack from Ross Zwisler who originally authored the nosymfollow patch. As I've already had the patches in my for-next I didn't add his ack explicitly" * tag 'fs.mount_setattr.nosymfollow.v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: tests: test MOUNT_ATTR_NOSYMFOLLOW with mount_setattr() mount: Support "nosymfollow" in new mount api |
|
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Linus Torvalds
|
65090f30ab |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "191 patches. Subsystems affected by this patch series: kthread, ia64, scripts, ntfs, squashfs, ocfs2, kernel/watchdog, and mm (gup, pagealloc, slab, slub, kmemleak, dax, debug, pagecache, gup, swap, memcg, pagemap, mprotect, bootmem, dma, tracing, vmalloc, kasan, initialization, pagealloc, and memory-failure)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (191 commits) mm,hwpoison: make get_hwpoison_page() call get_any_page() mm,hwpoison: send SIGBUS with error virutal address mm/page_alloc: split pcp->high across all online CPUs for cpuless nodes mm/page_alloc: allow high-order pages to be stored on the per-cpu lists mm: replace CONFIG_FLAT_NODE_MEM_MAP with CONFIG_FLATMEM mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA docs: remove description of DISCONTIGMEM arch, mm: remove stale mentions of DISCONIGMEM mm: remove CONFIG_DISCONTIGMEM m68k: remove support for DISCONTIGMEM arc: remove support for DISCONTIGMEM arc: update comment about HIGHMEM implementation alpha: remove DISCONTIGMEM and NUMA mm/page_alloc: move free_the_page mm/page_alloc: fix counting of managed_pages mm/page_alloc: improve memmap_pages dbg msg mm: drop SECTION_SHIFT in code comments mm/page_alloc: introduce vm.percpu_pagelist_high_fraction mm/page_alloc: limit the number of pages on PCP lists when reclaim is active mm/page_alloc: scale the number of pages that are batch freed ... |
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Jakub Kicinski
|
b6df00789e |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflict in net/netfilter/nf_tables_api.c. Duplicate fix in tools/testing/selftests/net/devlink_port_split.py - take the net-next version. skmsg, and L4 bpf - keep the bpf code but remove the flags and err params. Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
|
|
Linus Torvalds
|
1dfb0f47ac |
X86 entry code related updates:
- Consolidate the macros for .byte ... opcode sequences
- Deduplicate register offset defines in include files
- Simplify the ia32,x32 compat handling of the related syscall tables to
get rid of #ifdeffery.
- Clear all EFLAGS which are not required for syscall handling
- Consolidate the syscall tables and switch the generation over to the
generic shell script and remove the CFLAGS tweaks which are not longer
required.
- Use 'int' type for system call numbers to match the generic code.
- Add more selftests for syscalls
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Merge tag 'x86-entry-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 entry code related updates from Thomas Gleixner:
- Consolidate the macros for .byte ... opcode sequences
- Deduplicate register offset defines in include files
- Simplify the ia32,x32 compat handling of the related syscall tables
to get rid of #ifdeffery.
- Clear all EFLAGS which are not required for syscall handling
- Consolidate the syscall tables and switch the generation over to the
generic shell script and remove the CFLAGS tweaks which are not
longer required.
- Use 'int' type for system call numbers to match the generic code.
- Add more selftests for syscalls
* tag 'x86-entry-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/syscalls: Don't adjust CFLAGS for syscall tables
x86/syscalls: Remove -Wno-override-init for syscall tables
x86/uml/syscalls: Remove array index from syscall initializers
x86/syscalls: Clear 'offset' and 'prefix' in case they are set in env
x86/entry: Use int everywhere for system call numbers
x86/entry: Treat out of range and gap system calls the same
x86/entry/64: Sign-extend system calls on entry to int
selftests/x86/syscall: Add tests under ptrace to syscall_numbering_64
selftests/x86/syscall: Simplify message reporting in syscall_numbering
selftests/x86/syscall: Update and extend syscall_numbering_64
x86/syscalls: Switch to generic syscallhdr.sh
x86/syscalls: Use __NR_syscalls instead of __NR_syscall_max
x86/unistd: Define X32_NR_syscalls only for 64-bit kernel
x86/syscalls: Stop filling syscall arrays with *_sys_ni_syscall
x86/syscalls: Switch to generic syscalltbl.sh
x86/entry/x32: Rename __x32_compat_sys_* to __x64_compat_sys_*
|
|
|
Linus Torvalds
|
a22c3f615a |
X86 interrupt related changes:
- Consolidate the VECTOR defines and the usage sites.
- Cleanup GDT/IDT related code and replace open coded ASM with proper
native helfper functions.
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Merge tag 'x86-irq-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 interrupt related updates from Thomas Gleixner:
- Consolidate the VECTOR defines and the usage sites.
- Cleanup GDT/IDT related code and replace open coded ASM with proper
native helper functions.
* tag 'x86-irq-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kexec: Set_[gi]dt() -> native_[gi]dt_invalidate() in machine_kexec_*.c
x86: Add native_[ig]dt_invalidate()
x86/idt: Remove address argument from idt_invalidate()
x86/irq: Add and use NR_EXTERNAL_VECTORS and NR_SYSTEM_VECTORS
x86/irq: Remove unused vectors defines
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|
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Linus Torvalds
|
e563592c3e |
printk changes for 5.14
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Peter Xu
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f39bd85345 |
mm/gup_benchmark: support threading
Patch series "mm/gup: Fix pin page write cache bouncing on has_pinned", v2. This series contains 3 patches, the 1st one enables threading for gup_benchmark in the kselftest. The latter two patches are collected from Andrea's local branch which can fix write cache bouncing issue with pinning fast-gup. To be explicit on the latter two patches: - the 2nd patch fixes the perf degrade when introducing has_pinned, then - the last patch tries to remove the has_pinned with a bit in mm->flags For patch 3: originally I think we had a plan to reuse has_pinned into a counter very soon, however that's not happening at least until today, so maybe it proves that we can remove it until we really want such a counter for whatever reason. As the commit message stated, it saves 4 bytes for each mm without observable regressions. Regarding testing: we can reference to the commit message of patch 2 for some detailed testing with will-is-scale. Meanwhile I did patch 1 just because then we can even easily verify the patchset using the existing kselftest facilities or even regress test it in the future with the repo if we want. Below numbers are extra verification tests that I did besides commit message of patch 2 using the new gup_benchmark and 256 cpus. Below test is done on 40 cpus host with Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz, and I can get similar result (of course the write cache bouncing get severe with even more cores). After patch 1 applied (only test patch, so using old kernel): $ sudo chrt -f 1 ./gup_test -a -m 512 -j 40 PIN_FAST_BENCHMARK: Time: get:459632 put:5990 us PIN_FAST_BENCHMARK: Time: get:461967 put:5840 us PIN_FAST_BENCHMARK: Time: get:464521 put:6140 us PIN_FAST_BENCHMARK: Time: get:465176 put:7100 us PIN_FAST_BENCHMARK: Time: get:465960 put:6733 us PIN_FAST_BENCHMARK: Time: get:465324 put:6781 us PIN_FAST_BENCHMARK: Time: get:466018 put:7130 us PIN_FAST_BENCHMARK: Time: get:466362 put:7118 us PIN_FAST_BENCHMARK: Time: get:465118 put:6975 us PIN_FAST_BENCHMARK: Time: get:466422 put:6602 us PIN_FAST_BENCHMARK: Time: get:465791 put:6818 us PIN_FAST_BENCHMARK: Time: get:467091 put:6298 us PIN_FAST_BENCHMARK: Time: get:467694 put:5432 us PIN_FAST_BENCHMARK: Time: get:469575 put:5581 us PIN_FAST_BENCHMARK: Time: get:468124 put:6055 us PIN_FAST_BENCHMARK: Time: get:468877 put:6720 us PIN_FAST_BENCHMARK: Time: get:467212 put:4961 us PIN_FAST_BENCHMARK: Time: get:467834 put:6697 us PIN_FAST_BENCHMARK: Time: get:470778 put:6398 us PIN_FAST_BENCHMARK: Time: get:469788 put:6310 us PIN_FAST_BENCHMARK: Time: get:488277 put:7113 us PIN_FAST_BENCHMARK: Time: get:486613 put:7085 us PIN_FAST_BENCHMARK: Time: get:486940 put:7202 us PIN_FAST_BENCHMARK: Time: get:488728 put:7101 us PIN_FAST_BENCHMARK: Time: get:487570 put:7327 us PIN_FAST_BENCHMARK: Time: get:489260 put:7027 us PIN_FAST_BENCHMARK: Time: get:488846 put:6866 us PIN_FAST_BENCHMARK: Time: get:488521 put:6745 us PIN_FAST_BENCHMARK: Time: get:489950 put:6459 us PIN_FAST_BENCHMARK: Time: get:489777 put:6617 us PIN_FAST_BENCHMARK: Time: get:488224 put:6591 us PIN_FAST_BENCHMARK: Time: get:488644 put:6477 us PIN_FAST_BENCHMARK: Time: get:488754 put:6711 us PIN_FAST_BENCHMARK: Time: get:488875 put:6743 us PIN_FAST_BENCHMARK: Time: get:489290 put:6657 us PIN_FAST_BENCHMARK: Time: get:490264 put:6684 us PIN_FAST_BENCHMARK: Time: get:489631 put:6737 us PIN_FAST_BENCHMARK: Time: get:488434 put:6655 us PIN_FAST_BENCHMARK: Time: get:492213 put:6297 us PIN_FAST_BENCHMARK: Time: get:491124 put:6173 us After the whole series applied (new fixed kernel): $ sudo chrt -f 1 ./gup_test -a -m 512 -j 40 PIN_FAST_BENCHMARK: Time: get:82038 put:7041 us PIN_FAST_BENCHMARK: Time: get:82144 put:6817 us PIN_FAST_BENCHMARK: Time: get:83417 put:6674 us PIN_FAST_BENCHMARK: Time: get:82540 put:6594 us PIN_FAST_BENCHMARK: Time: get:83214 put:6681 us PIN_FAST_BENCHMARK: Time: get:83444 put:6889 us PIN_FAST_BENCHMARK: Time: get:83194 put:7499 us PIN_FAST_BENCHMARK: Time: get:84876 put:7369 us PIN_FAST_BENCHMARK: Time: get:86092 put:10289 us PIN_FAST_BENCHMARK: Time: get:86153 put:10415 us PIN_FAST_BENCHMARK: Time: get:85026 put:7751 us PIN_FAST_BENCHMARK: Time: get:85458 put:7944 us PIN_FAST_BENCHMARK: Time: get:85735 put:8154 us PIN_FAST_BENCHMARK: Time: get:85851 put:8299 us PIN_FAST_BENCHMARK: Time: get:86323 put:9617 us PIN_FAST_BENCHMARK: Time: get:86288 put:10496 us PIN_FAST_BENCHMARK: Time: get:87697 put:9346 us PIN_FAST_BENCHMARK: Time: get:87980 put:8382 us PIN_FAST_BENCHMARK: Time: get:88719 put:8400 us PIN_FAST_BENCHMARK: Time: get:87616 put:8588 us PIN_FAST_BENCHMARK: Time: get:86730 put:9563 us PIN_FAST_BENCHMARK: Time: get:88167 put:8673 us PIN_FAST_BENCHMARK: Time: get:86844 put:9777 us PIN_FAST_BENCHMARK: Time: get:88068 put:11774 us PIN_FAST_BENCHMARK: Time: get:86170 put:15676 us PIN_FAST_BENCHMARK: Time: get:87967 put:12827 us PIN_FAST_BENCHMARK: Time: get:95773 put:7652 us PIN_FAST_BENCHMARK: Time: get:87734 put:13650 us PIN_FAST_BENCHMARK: Time: get:89833 put:14237 us PIN_FAST_BENCHMARK: Time: get:96186 put:8029 us PIN_FAST_BENCHMARK: Time: get:95532 put:8886 us PIN_FAST_BENCHMARK: Time: get:95351 put:5826 us PIN_FAST_BENCHMARK: Time: get:96401 put:8407 us PIN_FAST_BENCHMARK: Time: get:96473 put:8287 us PIN_FAST_BENCHMARK: Time: get:97177 put:8430 us PIN_FAST_BENCHMARK: Time: get:98120 put:5263 us PIN_FAST_BENCHMARK: Time: get:96271 put:7757 us PIN_FAST_BENCHMARK: Time: get:99628 put:10467 us PIN_FAST_BENCHMARK: Time: get:99344 put:10045 us PIN_FAST_BENCHMARK: Time: get:94212 put:15485 us Summary: Old kernel: 477729.97 (+-3.79%) New kernel: 89144.65 (+-11.76%) This patch (of 3): Add a new parameter "-j N" to support concurrent gup test. Link: https://lkml.kernel.org/r/20210507150553.208763-1-peterx@redhat.com Link: https://lkml.kernel.org/r/20210507150553.208763-2-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Cc: Jan Kara <jack@suse.cz> Cc: Michal Hocko <mhocko@suse.com> Cc: Kirill Tkhai <ktkhai@virtuozzo.com> Cc: Kirill Shutemov <kirill@shutemov.name> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Jann Horn <jannh@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Tang Bin
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85f29cd6a1 |
tools/vm/page_owner_sort.c: check malloc() return
Link: https://lkml.kernel.org/r/20210506131402.10416-1-tangbin@cmss.chinamobile.com Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
c54b245d01 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull user namespace rlimit handling update from Eric Biederman: "This is the work mainly by Alexey Gladkov to limit rlimits to the rlimits of the user that created a user namespace, and to allow users to have stricter limits on the resources created within a user namespace." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: cred: add missing return error code when set_cred_ucounts() failed ucounts: Silence warning in dec_rlimit_ucounts ucounts: Set ucount_max to the largest positive value the type can hold kselftests: Add test to check for rlimit changes in different user namespaces Reimplement RLIMIT_MEMLOCK on top of ucounts Reimplement RLIMIT_SIGPENDING on top of ucounts Reimplement RLIMIT_MSGQUEUE on top of ucounts Reimplement RLIMIT_NPROC on top of ucounts Use atomic_t for ucounts reference counting Add a reference to ucounts for each cred Increase size of ucounts to atomic_long_t |
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Linus Torvalds
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616ea5cc4a |
seccomp updates for v5.14-rc1
Add "atomic addfd + send reply" mode to SECCOMP_USER_NOTIF to better handle EINTR races visible to seccomp monitors. (Rodrigo Campos, Sargun Dhillon) Improve seccomp selftests for readability in CI systems. (Kees Cook) -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmDaKLwWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJjwYD/wKVvQw9NBt+0Beo1lUvRmSDL6y zD1dg0ACiUc3O8kLszT6YtSiNFLSA4AlYI40puq/fs8BrP5ssvoUdlmkge88p1ph iLFBWXPP7ZG8mIdul35Cl0Z4r0T8NfDm9A5MoGGx9zfkWOhz9aiUKvR5EGHhX2K2 DMsCkG2JtVmoUfKLUIHtOtDf90LdwDXT4g/etgevh/xAEcwb48wx0fHrnUuXeHWS Myor2w/RBs7XxMjizfhwxuUqDR6ZznWPbpSvfXoqJF7unfsXq1kUKG47POIUSHYb mC6MtAZ8Z3V4kF/PVb2JqpFJOf6mEKsNVeDbNX25PtRCpd+ypRN+qD7k6e9OT+yc Jx42ontBQIOS3IYc2ahZ9R4UcC1SVMySFPol/DxnsW5c49X5CMLHeAjFY+25/H6d XvBOD+W4tQMqHLZroGiqcA+db672lE23DOsbNDSxaJOwhtSPbIlxHxN+vaHuoN1D QJKhmkmcBuqtOQLaCPAsKqYwIftix6pmxLHyAw/EMalwHTJtZRvA9IoIUS0e1w68 2tWH9RgSlIUZOvy5kRQ2wzth9yqnet4/a6rOMKRjLCpsTJQW48H+9zPHGzrcnT24 HVjPG+OGq7+/uGPWoSBCh5fuJ1UT9jhLGkDgfxS2BHTUYClchZFLPpD3t9nHaNUn mJweXo0F19fKyadWSw== =rOqS -----END PGP SIGNATURE----- Merge tag 'seccomp-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp updates from Kees Cook: - Add "atomic addfd + send reply" mode to SECCOMP_USER_NOTIF to better handle EINTR races visible to seccomp monitors. (Rodrigo Campos, Sargun Dhillon) - Improve seccomp selftests for readability in CI systems. (Kees Cook) * tag 'seccomp-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: selftests/seccomp: Avoid using "sysctl" for report selftests/seccomp: Flush benchmark output selftests/seccomp: More closely track fds being assigned selftests/seccomp: Add test for atomic addfd+send seccomp: Support atomic "addfd + send reply" |
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Linus Torvalds
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233a806b00 |
This was a reasonably active cycle for documentation; this pull includes:
- Some kernel-doc cleanups. That script is still regex onslaught from
hell, but it has gotten a little better.
- Improvements to the checkpatch docs, which are also used by the tool
itself.
- A major update to the pathname lookup documentation.
- Elimination of :doc: markup, since our automarkup magic can create
references from filenames without all the extra noise.
- The flurry of Chinese translation activity continues.
Plus, of course, the usual collection of updates, typo fixes, and warning
fixes.
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Merge tag 'docs-5.14' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"This was a reasonably active cycle for documentation; this includes:
- Some kernel-doc cleanups. That script is still regex onslaught from
hell, but it has gotten a little better.
- Improvements to the checkpatch docs, which are also used by the
tool itself.
- A major update to the pathname lookup documentation.
- Elimination of :doc: markup, since our automarkup magic can create
references from filenames without all the extra noise.
- The flurry of Chinese translation activity continues.
Plus, of course, the usual collection of updates, typo fixes, and
warning fixes"
* tag 'docs-5.14' of git://git.lwn.net/linux: (115 commits)
docs: path-lookup: use bare function() rather than literals
docs: path-lookup: update symlink description
docs: path-lookup: update get_link() ->follow_link description
docs: path-lookup: update WALK_GET, WALK_PUT desc
docs: path-lookup: no get_link()
docs: path-lookup: update i_op->put_link and cookie description
docs: path-lookup: i_op->follow_link replaced with i_op->get_link
docs: path-lookup: Add macro name to symlink limit description
docs: path-lookup: remove filename_mountpoint
docs: path-lookup: update do_last() part
docs: path-lookup: update path_mountpoint() part
docs: path-lookup: update path_to_nameidata() part
docs: path-lookup: update follow_managed() part
docs: Makefile: Use CONFIG_SHELL not SHELL
docs: Take a little noise out of the build process
docs: x86: avoid using ReST :doc:`foo` markup
docs: virt: kvm: s390-pv-boot.rst: avoid using ReST :doc:`foo` markup
docs: userspace-api: landlock.rst: avoid using ReST :doc:`foo` markup
docs: trace: ftrace.rst: avoid using ReST :doc:`foo` markup
docs: trace: coresight: coresight.rst: avoid using ReST :doc:`foo` markup
...
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Paolo Pisati
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a118ff6618 |
selftests: net: devlink_port_split: check devlink returned an element before dereferencing it
And thus avoid a Python stacktrace:
~/linux/tools/testing/selftests/net$ ./devlink_port_split.py
Traceback (most recent call last):
File "/home/linux/tools/testing/selftests/net/./devlink_port_split.py",
line 277, in <module> main()
File "/home/linux/tools/testing/selftests/net/./devlink_port_split.py",
line 242, in main
dev = list(devs.keys())[0]
IndexError: list index out of range
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Linus Torvalds
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36824f198c |
ARM:
- Add MTE support in guests, complete with tag save/restore interface
- Reduce the impact of CMOs by moving them in the page-table code
- Allow device block mappings at stage-2
- Reduce the footprint of the vmemmap in protected mode
- Support the vGIC on dumb systems such as the Apple M1
- Add selftest infrastructure to support multiple configuration
and apply that to PMU/non-PMU setups
- Add selftests for the debug architecture
- The usual crop of PMU fixes
PPC:
- Support for the H_RPT_INVALIDATE hypercall
- Conversion of Book3S entry/exit to C
- Bug fixes
S390:
- new HW facilities for guests
- make inline assembly more robust with KASAN and co
x86:
- Allow userspace to handle emulation errors (unknown instructions)
- Lazy allocation of the rmap (host physical -> guest physical address)
- Support for virtualizing TSC scaling on VMX machines
- Optimizations to avoid shattering huge pages at the beginning of live migration
- Support for initializing the PDPTRs without loading them from memory
- Many TLB flushing cleanups
- Refuse to load if two-stage paging is available but NX is not (this has
been a requirement in practice for over a year)
- A large series that separates the MMU mode (WP/SMAP/SMEP etc.) from
CR0/CR4/EFER, using the MMU mode everywhere once it is computed
from the CPU registers
- Use PM notifier to notify the guest about host suspend or hibernate
- Support for passing arguments to Hyper-V hypercalls using XMM registers
- Support for Hyper-V TLB flush hypercalls and enlightened MSR bitmap on
AMD processors
- Hide Hyper-V hypercalls that are not included in the guest CPUID
- Fixes for live migration of virtual machines that use the Hyper-V
"enlightened VMCS" optimization of nested virtualization
- Bugfixes (not many)
Generic:
- Support for retrieving statistics without debugfs
- Cleanups for the KVM selftests API
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"This covers all architectures (except MIPS) so I don't expect any
other feature pull requests this merge window.
ARM:
- Add MTE support in guests, complete with tag save/restore interface
- Reduce the impact of CMOs by moving them in the page-table code
- Allow device block mappings at stage-2
- Reduce the footprint of the vmemmap in protected mode
- Support the vGIC on dumb systems such as the Apple M1
- Add selftest infrastructure to support multiple configuration and
apply that to PMU/non-PMU setups
- Add selftests for the debug architecture
- The usual crop of PMU fixes
PPC:
- Support for the H_RPT_INVALIDATE hypercall
- Conversion of Book3S entry/exit to C
- Bug fixes
S390:
- new HW facilities for guests
- make inline assembly more robust with KASAN and co
x86:
- Allow userspace to handle emulation errors (unknown instructions)
- Lazy allocation of the rmap (host physical -> guest physical
address)
- Support for virtualizing TSC scaling on VMX machines
- Optimizations to avoid shattering huge pages at the beginning of
live migration
- Support for initializing the PDPTRs without loading them from
memory
- Many TLB flushing cleanups
- Refuse to load if two-stage paging is available but NX is not (this
has been a requirement in practice for over a year)
- A large series that separates the MMU mode (WP/SMAP/SMEP etc.) from
CR0/CR4/EFER, using the MMU mode everywhere once it is computed
from the CPU registers
- Use PM notifier to notify the guest about host suspend or hibernate
- Support for passing arguments to Hyper-V hypercalls using XMM
registers
- Support for Hyper-V TLB flush hypercalls and enlightened MSR bitmap
on AMD processors
- Hide Hyper-V hypercalls that are not included in the guest CPUID
- Fixes for live migration of virtual machines that use the Hyper-V
"enlightened VMCS" optimization of nested virtualization
- Bugfixes (not many)
Generic:
- Support for retrieving statistics without debugfs
- Cleanups for the KVM selftests API"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (314 commits)
KVM: x86: rename apic_access_page_done to apic_access_memslot_enabled
kvm: x86: disable the narrow guest module parameter on unload
selftests: kvm: Allows userspace to handle emulation errors.
kvm: x86: Allow userspace to handle emulation errors
KVM: x86/mmu: Let guest use GBPAGES if supported in hardware and TDP is on
KVM: x86/mmu: Get CR4.SMEP from MMU, not vCPU, in shadow page fault
KVM: x86/mmu: Get CR0.WP from MMU, not vCPU, in shadow page fault
KVM: x86/mmu: Drop redundant rsvd bits reset for nested NPT
KVM: x86/mmu: Optimize and clean up so called "last nonleaf level" logic
KVM: x86: Enhance comments for MMU roles and nested transition trickiness
KVM: x86/mmu: WARN on any reserved SPTE value when making a valid SPTE
KVM: x86/mmu: Add helpers to do full reserved SPTE checks w/ generic MMU
KVM: x86/mmu: Use MMU's role to determine PTTYPE
KVM: x86/mmu: Collapse 32-bit PAE and 64-bit statements for helpers
KVM: x86/mmu: Add a helper to calculate root from role_regs
KVM: x86/mmu: Add helper to update paging metadata
KVM: x86/mmu: Don't update nested guest's paging bitmasks if CR0.PG=0
KVM: x86/mmu: Consolidate reset_rsvds_bits_mask() calls
KVM: x86/mmu: Use MMU role_regs to get LA57, and drop vCPU LA57 helper
KVM: x86/mmu: Get nested MMU's root level from the MMU's role
...
|
|
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David S. Miller
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e1289cfb63 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says: ==================== pull-request: bpf-next 2021-06-28 The following pull-request contains BPF updates for your *net-next* tree. We've added 37 non-merge commits during the last 12 day(s) which contain a total of 56 files changed, 394 insertions(+), 380 deletions(-). The main changes are: 1) XDP driver RCU cleanups, from Toke Høiland-Jørgensen and Paul E. McKenney. 2) Fix bpf_skb_change_proto() IPv4/v6 GSO handling, from Maciej Żenczykowski. 3) Fix false positive kmemleak report for BPF ringbuf alloc, from Rustam Kovhaev. 4) Fix x86 JIT's extable offset calculation for PROBE_LDX NULL, from Ravi Bangoria. 5) Enable libbpf fallback probing with tracing under RHEL7, from Jonathan Edwards. 6) Clean up x86 JIT to remove unused cnt tracking from EMIT macro, from Jiri Olsa. 7) Netlink cleanups for libbpf to please Coverity, from Kumar Kartikeya Dwivedi. 8) Allow to retrieve ancestor cgroup id in tracing programs, from Namhyung Kim. 9) Fix lirc BPF program query to use user-provided prog_cnt, from Sean Young. 10) Add initial libbpf doc including generated kdoc for its API, from Grant Seltzer. 11) Make xdp_rxq_info_unreg_mem_model() more robust, from Jakub Kicinski. 12) Fix up bpfilter startup log-level to info level, from Gary Lin. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linus Torvalds
|
9840cfcb97 |
arm64 updates for 5.14
- Optimise SVE switching for CPUs with 128-bit implementations.
- Fix output format from SVE selftest.
- Add support for versions v1.2 and 1.3 of the SMC calling convention.
- Allow Pointer Authentication to be configured independently for
kernel and userspace.
- PMU driver cleanups for managing IRQ affinity and exposing event
attributes via sysfs.
- KASAN optimisations for both hardware tagging (MTE) and out-of-line
software tagging implementations.
- Relax frame record alignment requirements to facilitate 8-byte
alignment with KASAN and Clang.
- Cleanup of page-table definitions and removal of unused memory types.
- Reduction of ARCH_DMA_MINALIGN back to 64 bytes.
- Refactoring of our instruction decoding routines and addition of some
missing encodings.
- Move entry code moved into C and hardened against harmful compiler
instrumentation.
- Update booting requirements for the FEAT_HCX feature, added to v8.7
of the architecture.
- Fix resume from idle when pNMI is being used.
- Additional CPU sanity checks for MTE and preparatory changes for
systems where not all of the CPUs support 32-bit EL0.
- Update our kernel string routines to the latest Cortex Strings
implementation.
- Big cleanup of our cache maintenance routines, which were confusingly
named and inconsistent in their implementations.
- Tweak linker flags so that GDB can understand vmlinux when using RELR
relocations.
- Boot path cleanups to enable early initialisation of per-cpu
operations needed by KCSAN.
- Non-critical fixes and miscellaneous cleanup.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"There's a reasonable amount here and the juicy details are all below.
It's worth noting that the MTE/KASAN changes strayed outside of our
usual directories due to core mm changes and some associated changes
to some other architectures; Andrew asked for us to carry these [1]
rather that take them via the -mm tree.
Summary:
- Optimise SVE switching for CPUs with 128-bit implementations.
- Fix output format from SVE selftest.
- Add support for versions v1.2 and 1.3 of the SMC calling
convention.
- Allow Pointer Authentication to be configured independently for
kernel and userspace.
- PMU driver cleanups for managing IRQ affinity and exposing event
attributes via sysfs.
- KASAN optimisations for both hardware tagging (MTE) and out-of-line
software tagging implementations.
- Relax frame record alignment requirements to facilitate 8-byte
alignment with KASAN and Clang.
- Cleanup of page-table definitions and removal of unused memory
types.
- Reduction of ARCH_DMA_MINALIGN back to 64 bytes.
- Refactoring of our instruction decoding routines and addition of
some missing encodings.
- Move entry code moved into C and hardened against harmful compiler
instrumentation.
- Update booting requirements for the FEAT_HCX feature, added to v8.7
of the architecture.
- Fix resume from idle when pNMI is being used.
- Additional CPU sanity checks for MTE and preparatory changes for
systems where not all of the CPUs support 32-bit EL0.
- Update our kernel string routines to the latest Cortex Strings
implementation.
- Big cleanup of our cache maintenance routines, which were
confusingly named and inconsistent in their implementations.
- Tweak linker flags so that GDB can understand vmlinux when using
RELR relocations.
- Boot path cleanups to enable early initialisation of per-cpu
operations needed by KCSAN.
- Non-critical fixes and miscellaneous cleanup"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (150 commits)
arm64: tlb: fix the TTL value of tlb_get_level
arm64: Restrict undef hook for cpufeature registers
arm64/mm: Rename ARM64_SWAPPER_USES_SECTION_MAPS
arm64: insn: avoid circular include dependency
arm64: smp: Bump debugging information print down to KERN_DEBUG
drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()
perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number
arm64: suspend: Use cpuidle context helpers in cpu_suspend()
PSCI: Use cpuidle context helpers in psci_cpu_suspend_enter()
arm64: Convert cpu_do_idle() to using cpuidle context helpers
arm64: Add cpuidle context save/restore helpers
arm64: head: fix code comments in set_cpu_boot_mode_flag
arm64: mm: drop unused __pa(__idmap_text_start)
arm64: mm: fix the count comments in compute_indices
arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan
arm64: mm: Pass original fault address to handle_mm_fault()
arm64/mm: Drop SECTION_[SHIFT|SIZE|MASK]
arm64/mm: Use CONT_PMD_SHIFT for ARM64_MEMSTART_SHIFT
arm64/mm: Drop SWAPPER_INIT_MAP_SIZE
arm64: Conditionally configure PTR_AUTH key of the kernel.
...
|
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Linus Torvalds
|
909489bf9f |
Changes for this cycle:
- Micro-optimize and standardize the do_syscall_64() calling convention
- Make syscall entry flags clearing more conservative
- Clean up syscall table handling
- Clean up & standardize assembly macros, in preparation of FRED
- Misc cleanups and fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 asm updates from Ingo Molnar:
- Micro-optimize and standardize the do_syscall_64() calling convention
- Make syscall entry flags clearing more conservative
- Clean up syscall table handling
- Clean up & standardize assembly macros, in preparation of FRED
- Misc cleanups and fixes
* tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Make <asm/asm.h> valid on cross-builds as well
x86/regs: Syscall_get_nr() returns -1 for a non-system call
x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros
x86/syscall: Maximize MSR_SYSCALL_MASK
x86/syscall: Unconditionally prototype {ia32,x32}_sys_call_table[]
x86/entry: Reverse arguments to do_syscall_64()
x86/entry: Unify definitions from <asm/calling.h> and <asm/ptrace-abi.h>
x86/asm: Use _ASM_BYTES() in <asm/nops.h>
x86/asm: Add _ASM_BYTES() macro for a .byte ... opcode sequence
x86/asm: Have the __ASM_FORM macros handle commas in arguments
|
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Kees Cook
|
9a03abc16c |
selftests/seccomp: Avoid using "sysctl" for report
Instead of depending on "sysctl" being installed, just use "grep -H" for sysctl status reporting. Additionally report kernel version for easier comparisons. Signed-off-by: Kees Cook <keescook@chromium.org> |
|
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Kees Cook
|
62ddb91b77 |
selftests/seccomp: Flush benchmark output
When running the seccomp benchmark under a test runner, it wouldn't provide any feedback on progress. Set stdout unbuffered. Suggested-by: Will Drewry <wad@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org> |
|
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Kees Cook
|
93e720d710 |
selftests/seccomp: More closely track fds being assigned
Since the open fds might not always start at "4" (especially when running under kselftest, etc), start counting from the first assigned fd, rather than using the more permissive EXPECT_GE(fd, 0). Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/lkml/20210527032948.3730953-1-keescook@chromium.org Reviewed-by: Rodrigo Campos <rodrigo@kinvolk.io> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> |
|
|
Rodrigo Campos
|
e540ad97e7 |
selftests/seccomp: Add test for atomic addfd+send
This just adds a test to verify that when using the new introduced flag to ADDFD, a valid fd is added and returned as the syscall result. Signed-off-by: Rodrigo Campos <rodrigo@kinvolk.io> Signed-off-by: Sargun Dhillon <sargun@sargun.me> Acked-by: Tycho Andersen <tycho@tycho.pizza> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210517193908.3113-5-sargun@sargun.me |
|
|
Linus Torvalds
|
54a728dc5e |
Scheduler udpates for this cycle:
- Changes to core scheduling facilities:
- Add "Core Scheduling" via CONFIG_SCHED_CORE=y, which enables
coordinated scheduling across SMT siblings. This is a much
requested feature for cloud computing platforms, to allow
the flexible utilization of SMT siblings, without exposing
untrusted domains to information leaks & side channels, plus
to ensure more deterministic computing performance on SMT
systems used by heterogenous workloads.
There's new prctls to set core scheduling groups, which
allows more flexible management of workloads that can share
siblings.
- Fix task->state access anti-patterns that may result in missed
wakeups and rename it to ->__state in the process to catch new
abuses.
- Load-balancing changes:
- Tweak newidle_balance for fair-sched, to improve
'memcache'-like workloads.
- "Age" (decay) average idle time, to better track & improve workloads
such as 'tbench'.
- Fix & improve energy-aware (EAS) balancing logic & metrics.
- Fix & improve the uclamp metrics.
- Fix task migration (taskset) corner case on !CONFIG_CPUSET.
- Fix RT and deadline utilization tracking across policy changes
- Introduce a "burstable" CFS controller via cgroups, which allows
bursty CPU-bound workloads to borrow a bit against their future
quota to improve overall latencies & batching. Can be tweaked
via /sys/fs/cgroup/cpu/<X>/cpu.cfs_burst_us.
- Rework assymetric topology/capacity detection & handling.
- Scheduler statistics & tooling:
- Disable delayacct by default, but add a sysctl to enable
it at runtime if tooling needs it. Use static keys and
other optimizations to make it more palatable.
- Use sched_clock() in delayacct, instead of ktime_get_ns().
- Misc cleanups and fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler udpates from Ingo Molnar:
- Changes to core scheduling facilities:
- Add "Core Scheduling" via CONFIG_SCHED_CORE=y, which enables
coordinated scheduling across SMT siblings. This is a much
requested feature for cloud computing platforms, to allow the
flexible utilization of SMT siblings, without exposing untrusted
domains to information leaks & side channels, plus to ensure more
deterministic computing performance on SMT systems used by
heterogenous workloads.
There are new prctls to set core scheduling groups, which allows
more flexible management of workloads that can share siblings.
- Fix task->state access anti-patterns that may result in missed
wakeups and rename it to ->__state in the process to catch new
abuses.
- Load-balancing changes:
- Tweak newidle_balance for fair-sched, to improve 'memcache'-like
workloads.
- "Age" (decay) average idle time, to better track & improve
workloads such as 'tbench'.
- Fix & improve energy-aware (EAS) balancing logic & metrics.
- Fix & improve the uclamp metrics.
- Fix task migration (taskset) corner case on !CONFIG_CPUSET.
- Fix RT and deadline utilization tracking across policy changes
- Introduce a "burstable" CFS controller via cgroups, which allows
bursty CPU-bound workloads to borrow a bit against their future
quota to improve overall latencies & batching. Can be tweaked via
/sys/fs/cgroup/cpu/<X>/cpu.cfs_burst_us.
- Rework assymetric topology/capacity detection & handling.
- Scheduler statistics & tooling:
- Disable delayacct by default, but add a sysctl to enable it at
runtime if tooling needs it. Use static keys and other
optimizations to make it more palatable.
- Use sched_clock() in delayacct, instead of ktime_get_ns().
- Misc cleanups and fixes.
* tag 'sched-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits)
sched/doc: Update the CPU capacity asymmetry bits
sched/topology: Rework CPU capacity asymmetry detection
sched/core: Introduce SD_ASYM_CPUCAPACITY_FULL sched_domain flag
psi: Fix race between psi_trigger_create/destroy
sched/fair: Introduce the burstable CFS controller
sched/uclamp: Fix uclamp_tg_restrict()
sched/rt: Fix Deadline utilization tracking during policy change
sched/rt: Fix RT utilization tracking during policy change
sched: Change task_struct::state
sched,arch: Remove unused TASK_STATE offsets
sched,timer: Use __set_current_state()
sched: Add get_current_state()
sched,perf,kvm: Fix preemption condition
sched: Introduce task_is_running()
sched: Unbreak wakeups
sched/fair: Age the average idle time
sched/cpufreq: Consider reduced CPU capacity in energy calculation
sched/fair: Take thermal pressure into account while estimating energy
thermal/cpufreq_cooling: Update offline CPUs per-cpu thermal_pressure
sched/fair: Return early from update_tg_cfs_load() if delta == 0
...
|
|
|
Linus Torvalds
|
a15286c63d |
Locking changes for this cycle:
- Core locking & atomics:
- Convert all architectures to ARCH_ATOMIC: move every
architecture to ARCH_ATOMIC, then get rid of ARCH_ATOMIC
and all the transitory facilities and #ifdefs.
Much reduction in complexity from that series:
63 files changed, 756 insertions(+), 4094 deletions(-)
- Self-test enhancements
- Futexes:
- Add the new FUTEX_LOCK_PI2 ABI, which is a variant that
doesn't set FLAGS_CLOCKRT (.e. uses CLOCK_MONOTONIC).
[ The temptation to repurpose FUTEX_LOCK_PI's implicit
setting of FLAGS_CLOCKRT & invert the flag's meaning
to avoid having to introduce a new variant was
resisted successfully. ]
- Enhance futex self-tests
- Lockdep:
- Fix dependency path printouts
- Optimize trace saving
- Broaden & fix wait-context checks
- Misc cleanups and fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- Core locking & atomics:
- Convert all architectures to ARCH_ATOMIC: move every architecture
to ARCH_ATOMIC, then get rid of ARCH_ATOMIC and all the
transitory facilities and #ifdefs.
Much reduction in complexity from that series:
63 files changed, 756 insertions(+), 4094 deletions(-)
- Self-test enhancements
- Futexes:
- Add the new FUTEX_LOCK_PI2 ABI, which is a variant that doesn't
set FLAGS_CLOCKRT (.e. uses CLOCK_MONOTONIC).
[ The temptation to repurpose FUTEX_LOCK_PI's implicit setting of
FLAGS_CLOCKRT & invert the flag's meaning to avoid having to
introduce a new variant was resisted successfully. ]
- Enhance futex self-tests
- Lockdep:
- Fix dependency path printouts
- Optimize trace saving
- Broaden & fix wait-context checks
- Misc cleanups and fixes.
* tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
locking/lockdep: Correct the description error for check_redundant()
futex: Provide FUTEX_LOCK_PI2 to support clock selection
futex: Prepare futex_lock_pi() for runtime clock selection
lockdep/selftest: Remove wait-type RCU_CALLBACK tests
lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING
lockdep: Fix wait-type for empty stack
locking/selftests: Add a selftest for check_irq_usage()
lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage()
locking/lockdep: Remove the unnecessary trace saving
locking/lockdep: Fix the dep path printing for backwards BFS
selftests: futex: Add futex compare requeue test
selftests: futex: Add futex wait test
seqlock: Remove trailing semicolon in macros
locking/lockdep: Reduce LOCKDEP dependency list
locking/lockdep,doc: Improve readability of the block matrix
locking/atomics: atomic-instrumented: simplify ifdeffery
locking/atomic: delete !ARCH_ATOMIC remnants
locking/atomic: xtensa: move to ARCH_ATOMIC
locking/atomic: sparc: move to ARCH_ATOMIC
locking/atomic: sh: move to ARCH_ATOMIC
...
|
|
|
Linus Torvalds
|
b89c07dea1 |
A single ELF format fix for a section flags mismatch bug that breaks
kernel tooling such as kpatch-build.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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mergetag object
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David Gow
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5acaf6031f |
kunit: tool: Support skipped tests in kunit_tool
Add support for the SKIP directive to kunit_tool's TAP parser. Skipped tests now show up as such in the printed summary. The number of skipped tests is counted, and if all tests in a suite are skipped, the suite is also marked as skipped. Otherwise, skipped tests do affect the suite result. Example output: [00:22:34] ======== [SKIPPED] example_skip ======== [00:22:34] [SKIPPED] example_skip_test # SKIP this test should be skipped [00:22:34] [SKIPPED] example_mark_skipped_test # SKIP this test should be skipped [00:22:34] ============================================================ [00:22:34] Testing complete. 2 tests run. 0 failed. 0 crashed. 2 skipped. Signed-off-by: David Gow <davidgow@google.com> Reviewed-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Daniel Latypov
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b29b14f11d |
kunit: tool: internal refactor of parser input handling
Note: this does not change the parser behavior at all (except for making
one error message more useful). This is just an internal refactor.
The TAP output parser currently operates over a List[str].
This works, but we only ever need to be able to "peek" at the current
line and the ability to "pop" it off.
Also, using a List means we need to wait for all the output before we
can start parsing. While this is not an issue for most tests which are
really lightweight, we do have some longer (~5 minutes) tests.
This patch introduces an LineStream wrapper class that
* Exposes a peek()/pop() interface instead of manipulating an array
* this allows us to more easily add debugging code [1]
* Can consume an input from a generator
* we can now parse results as tests are running (the parser code
currently doesn't print until the end, so no impact yet).
* Tracks the current line number to print better error messages
* Would allow us to add additional features more easily, e.g. storing
N previous lines so we can print out invalid lines in context, etc.
[1] The parsing logic is currently quite fragile.
E.g. it'll often say the kernel "CRASHED" if there's something slightly
wrong with the output format. When debugging a test that had some memory
corruption issues, it resulted in very misleading errors from the parser.
Now we could easily add this to trace all the lines consumed and why
+import inspect
...
def pop(self) -> str:
n = self._next
+ print(f'popping {n[0]}: {n[1].ljust(40, " ")}| caller={inspect.stack()[1].function}')
Example output:
popping 77: TAP version 14 | caller=parse_tap_header
popping 78: 1..1 | caller=parse_test_plan
popping 79: # Subtest: kunit_executor_test | caller=parse_subtest_header
popping 80: 1..2 | caller=parse_subtest_plan
popping 81: ok 1 - parse_filter_test | caller=parse_ok_not_ok_test_case
popping 82: ok 2 - filter_subsuite_test | caller=parse_ok_not_ok_test_case
popping 83: ok 1 - kunit_executor_test | caller=parse_ok_not_ok_test_suite
If we introduce an invalid line, we can see the parser go down the wrong path:
popping 77: TAP version 14 | caller=parse_tap_header
popping 78: 1..1 | caller=parse_test_plan
popping 79: # Subtest: kunit_executor_test | caller=parse_subtest_header
popping 80: 1..2 | caller=parse_subtest_plan
popping 81: 1..2 # this is invalid! | caller=parse_ok_not_ok_test_case
popping 82: ok 1 - parse_filter_test | caller=parse_ok_not_ok_test_case
popping 83: ok 2 - filter_subsuite_test | caller=parse_ok_not_ok_test_case
popping 84: ok 1 - kunit_executor_test | caller=parse_ok_not_ok_test_case
[ERROR] ran out of lines before end token
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Paolo Bonzini
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b8917b4ae4 |
KVM/arm64 updates for v5.14.
- Add MTE support in guests, complete with tag save/restore interface - Reduce the impact of CMOs by moving them in the page-table code - Allow device block mappings at stage-2 - Reduce the footprint of the vmemmap in protected mode - Support the vGIC on dumb systems such as the Apple M1 - Add selftest infrastructure to support multiple configuration and apply that to PMU/non-PMU setups - Add selftests for the debug architecture - The usual crop of PMU fixes -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmDV2bEPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpDEr8P/ivwROx5NwGcHGmU5RfUCT3aFqhtVHHwD/lu jPcgoO61kz9TelOu6QRaVuK+mVHxcq3iP4R8nPq/QCkUlEXTmK2xkyhXhGXSYpH4 6jM8+BbC3eG7iAxx6H0UM4JTl4Riwat6ZZtXpWEWs9TKqOHOQYFpMkxSttwVZ1CZ SjbtFvXLEdzKn6PzUWnKdBNMV/mHsdAtohZit9oJOc4ttc8072XxETQ4TFQ+MSvA j9zY9QPmWzgcZnotqRRu9sbTGO2vxtXuUtY3sjdD8+C9OgSe9qvpnNjymcmfwaMu 1fBkfh65oaO4ItJBdGOUOoEcFqwN5imPiI7CB/O+ZYkO9sBCuTUPSQwPkyiwXb9r bUkTaQw2nZiNWsqR1x07fQ2sGYbMp5mnmgmqiV4MUWkLmFp9LZATCWYTTn24cBNS 6SjVP6/8S0r3EhLnYjH0Pn1we5PooU1EF6RlCAd3ewYoo+9fPnwjNYwIWH5i5wB7 +tnei44NACAw9cfbos+BYQQ/dY15OSFzLzIMomlabB7OpXOdDg3H6tJnPbFwWwXb 9nF8XdHqxeDVVVrDCAx1BSodSXm9xqgnQM2RDGTUnpVcAfqAr3MXX6VsyKQDzj8T QXF9qOVCBAABv6BXAvSQ6mvMJZDUVbUPEPhf7kXzF46JsRd6A7wWoU/OnMGHQ/w7 wjvH8HVy =fWBV -----END PGP SIGNATURE----- Merge tag 'kvmarm-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for v5.14. - Add MTE support in guests, complete with tag save/restore interface - Reduce the impact of CMOs by moving them in the page-table code - Allow device block mappings at stage-2 - Reduce the footprint of the vmemmap in protected mode - Support the vGIC on dumb systems such as the Apple M1 - Add selftest infrastructure to support multiple configuration and apply that to PMU/non-PMU setups - Add selftests for the debug architecture - The usual crop of PMU fixes |
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Haren Myneni
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c6c27e3d84 |
selftests/powerpc: Use req_max_processed_len from sysfs NX capabilities
On PowerVM, the hypervisor defines the maximum buffer length for each NX request and the kernel exported this value via sysfs. This patch reads this value if the sysfs entry is available and is used to limit the request length. Signed-off-by: Haren Myneni <haren@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/ed908341b1eb7ca0183c028a4ed4a0cf48bfe0f6.camel@linux.ibm.com |
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Aaron Lewis
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39bbcc3a4e |
selftests: kvm: Allows userspace to handle emulation errors.
This test exercises the feature KVM_CAP_EXIT_ON_EMULATION_FAILURE. When enabled, errors in the in-kernel instruction emulator are forwarded to userspace with the instruction bytes stored in the exit struct for KVM_EXIT_INTERNAL_ERROR. So, when the guest attempts to emulate an 'flds' instruction, which isn't able to be emulated in KVM, instead of failing, KVM sends the instruction to userspace to handle. For this test to work properly the module parameter 'allow_smaller_maxphyaddr' has to be set. Signed-off-by: Aaron Lewis <aaronlewis@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Message-Id: <20210510144834.658457-3-aaronlewis@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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167f8a5cae |
KVM: x86/mmu: Rename "nxe" role bit to "efer_nx" for macro shenanigans
Rename "nxe" to "efer_nx" so that future macro magic can use the pattern <reg>_<bit> for all CR0, CR4, and EFER bits that included in the role. Using "efer_nx" also makes it clear that the role bit reflects EFER.NX, not the NX bit in the corresponding PTE. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622175739.3610207-25-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Jing Zhang
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0b45d58738 |
KVM: selftests: Add selftest for KVM statistics data binary interface
Add selftest to check KVM stats descriptors validity. Reviewed-by: David Matlack <dmatlack@google.com> Reviewed-by: Ricardo Koller <ricarkol@google.com> Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com> Tested-by: Fuad Tabba <tabba@google.com> #arm64 Signed-off-by: Jing Zhang <jingzhangos@google.com> Message-Id: <20210618222709.1858088-7-jingzhangos@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Steven Rostedt (VMware)
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171ec346fc |
bootconfig/tracing/ktest: Add ktest examples of testing bootconfig
bootconfig is a new feature that appends scripts onto the initrd, and the kernel executes the scripts as an extended kernel command line. Need to add tests to test that the happened. To test the bootconfig properly, the initrd needs to be updated and the kernel rebooted. ktest is the perfect solution to perform these tests. Add a example bootconfig.conf in the tools/testing/ktest/examples/include and example bootconfig scripts in tools/testing/ktest/examples/bootconfig and also include verifier scripts that ktest will install on the target and run to make sure that the bootconfig options in the scripts took place after the target rebooted with the new initrd update. Link: https://lkml.kernel.org/r/20210618112647.6a81dec5@oasis.local.home Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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Joshua Martinez
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51f382428c |
perf top: Add cgroup support for perf top (-G)
Added callback option (-G) to support cgroups for 'perf top'.
Added condition to make sure -cgroup and --all-cgroups aren't both enabled.
Example:
$perf top -e cycles -G system.slice/docker-6b95a5eb649c0d671eba3835f0d93973d05a088f3ae8602246bde37affb1ba3e.scope -a --stdio
PerfTop: 3330 irqs/sec kernel:68.2% exact: 0.0% lost: 0/0 drop: 0/11075 [4000Hz cpu-clock], (all, 4 CPUs)
-------------------------------------------------------------------------------------------------------------------------------------------------------
27.32% [unknown] [.] 0x00007f8ab7b69352
11.44% [kernel] [k] 0xffffffff968cd657
3.12% [kernel] [k] 0xffffffff96160e96
2.63% [kernel] [k] 0xffffffff96160eb0
1.96% [kernel] [k] 0xffffffff9615fcf6
1.42% [kernel] [k] 0xffffffff964ddfc7
1.09% [kernel] [k] 0xffffffff96160e90
0.81% [kernel] [k] 0xffffffff96160eb3
0.67% [kernel] [k] 0xffffffff9615fec1
0.57% [kernel] [k] 0xffffffff961ee1d0
0.53% [unknown] [.] 0x00007f8ab7b6666c
0.53% [kernel] [k] 0xffffffff96160e64
0.52% [kernel] [k] 0xffffffff9616c303
0.51% [kernel] [k] 0xffffffffc08e7d50
...
Signed-off-by: Joshua Martinez <joshuamart@google.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: joshua martinez <joshuamart@google.com>
Link: http://lore.kernel.org/lkml/20210616231829.3735671-1-joshuamart@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Lorenz Bauer
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ae24bab257 |
tools/testing: add a selftest for SO_NETNS_COOKIE
Make sure that SO_NETNS_COOKIE returns a non-zero value, and that sockets from different namespaces have a distinct cookie value. Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Sean Christopherson
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ef6a74b2e5 |
KVM: sefltests: Add x86-64 test to verify MMU reacts to CPUID updates
Add an x86-only test to verify that x86's MMU reacts to CPUID updates that impact the MMU. KVM has had multiple bugs where it fails to reconfigure the MMU after the guest's vCPU model changes. Sadly, this test is effectively limited to shadow paging because the hardware page walk handler doesn't support software disabling of GBPAGES support, and KVM doesn't manually walk the GVA->GPA on faults for performance reasons (doing so would large defeat the benefits of TDP). Don't require !TDP for the tests as there is still value in running the tests with TDP, even though the tests will fail (barring KVM hacks). E.g. KVM should not completely explode if MAXPHYADDR results in KVM using 4-level vs. 5-level paging for the guest. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-20-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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ad5f16e422 |
KVM: selftests: Add hugepage support for x86-64
Add x86-64 hugepage support in the form of a x86-only variant of virt_pg_map() that takes an explicit page size. To keep things simple, follow the existing logic for 4k pages and disallow creating a hugepage if the upper-level entry is present, even if the desired pfn matches. Opportunistically fix a double "beyond beyond" reported by checkpatch. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-19-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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b007e904b3 |
KVM: selftests: Genericize upper level page table entry struct
In preparation for adding hugepage support, replace "pageMapL4Entry", "pageDirectoryPointerEntry", and "pageDirectoryEntry" with a common "pageUpperEntry", and add a helper to create an upper level entry. All upper level entries have the same layout, using unique structs provides minimal value and requires a non-trivial amount of code duplication. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-18-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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f681d6861b |
KVM: selftests: Add PTE helper for x86-64 in preparation for hugepages
Add a helper to retrieve a PTE pointer given a PFN, address, and level in preparation for adding hugepage support. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-17-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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6d96ca6a60 |
KVM: selftests: Rename x86's page table "address" to "pfn"
Rename the "address" field to "pfn" in x86's page table structs to match reality. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-16-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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cce0c23dd9 |
KVM: selftests: Add wrapper to allocate page table page
Add a helper to allocate a page for use in constructing the guest's page tables. All architectures have identical address and memslot requirements (which appear to be arbitrary anyways). No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-15-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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444d084b46 |
KVM: selftests: Unconditionally allocate EPT tables in memslot 0
Drop the EPTP memslot param from all EPT helpers and shove the hardcoded '0' down to the vm_phy_page_alloc() calls. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-14-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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4307af730b |
KVM: selftests: Unconditionally use memslot '0' for page table allocations
Drop the memslot param from virt_pg_map() and virt_map() and shove the hardcoded '0' down to the vm_phy_page_alloc() calls. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-13-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
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a75a895e64 |
KVM: selftests: Unconditionally use memslot 0 for vaddr allocations
Drop the memslot param(s) from vm_vaddr_alloc() now that all callers directly specific '0' as the memslot. Drop the memslot param from virt_pgd_alloc() as well since vm_vaddr_alloc() is its only user. I.e. shove the hardcoded '0' down to the vm_phy_pages_alloc() calls. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Kees Cook
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37a0ca7f3e |
lkdtm/heap: Add init_on_alloc tests
Add SLAB and page allocator tests for init_on_alloc. Testing for init_on_free was already happening via the poisoning tests. Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210623203936.3151093-10-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Kees Cook
|
b61ce4d81b |
selftests/lkdtm: Enable various testable CONFIGs
Add a handful of LKDTM-testable features that depend on certain CONFIGs so that they are visible in logs for CI systems that run the selftests. Others could be added, but may be seen as having too high a trade-off for general testing. Cc: kernelci@groups.io Suggested-by: Guillaume Tucker <guillaume.tucker@collabora.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210623203936.3151093-9-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Kees Cook
|
5b777131bd |
lkdtm: Add CONFIG hints in errors where possible
For various failure conditions, try to include some details about where to look for reasons about the failure. Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210623203936.3151093-8-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Kees Cook
|
9c4f6ebc36 |
lkdtm/heap: Add vmalloc linear overflow test
Similar to the existing slab overflow and stack exhaustion tests, add VMALLOC_LINEAR_OVERFLOW (and rename the slab test SLAB_LINEAR_OVERFLOW). Additionally unmarks the test as destructive. (It should be safe in the face of misbehavior.) Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210623203936.3151093-6-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Kees Cook
|
0acbdbc720 |
selftests/lkdtm: Fix expected text for free poison
Freed memory poisoning can be tested a few ways, so update the expected text to reflect the non-Oopsing alternative. Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210623203936.3151093-4-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Kees Cook
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c2eb472bbe |
selftests/lkdtm: Fix expected text for CR4 pinning
The error text for CR4 pinning changed. Update the test to match.
Fixes:
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Kees Cook
|
04831e892b |
selftests/lkdtm: Avoid needing explicit sub-shell
Some environments do not set $SHELL when running tests. There's no
need to use $SHELL here anyway, since "cat" can be used to receive any
delivered signals from the kernel. Additionally avoid using bash-isms
in the command, and record stderr for posterity.
Fixes:
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Sean Christopherson
|
408633c326 |
KVM: selftests: Use "standard" min virtual address for CPUID test alloc
Use KVM_UTIL_MIN_ADDR as the minimum for x86-64's CPUID array. The system page size was likely used as the minimum because _something_ had to be provided. Increasing the min from 0x1000 to 0x2000 should have no meaningful impact on the test, and will allow changing vm_vaddr_alloc() to use KVM_UTIL_MIN_VADDR as the default. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-11-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
|
233446c1e6 |
KVM: selftests: Use alloc page helper for xAPIC IPI test
Use the common page allocation helper for the xAPIC IPI test, effectively raising the minimum virtual address from 0x1000 to 0x2000. Presumably the test won't explode if it can't get a page at address 0x1000... Cc: Peter Shier <pshier@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-10-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Sean Christopherson
|
5ae4d8706f |
KVM: selftests: Use alloc_page helper for x86-64's GDT/IDT/TSS allocations
Switch to the vm_vaddr_alloc_page() helper for x86-64's "kernel" allocations now that the helper uses the same min virtual address as the open coded versions. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622200529.3650424-9-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |