mirror of https://gitee.com/openkylin/linux.git
4757 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
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95e6ba5133 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
1) More jumbo frame fixes in r8169, from Heiner Kallweit.
2) Fix bpf build in minimal configuration, from Alexei Starovoitov.
3) Use after free in slcan driver, from Jouni Hogander.
4) Flower classifier port ranges don't work properly in the HW offload
case, from Yoshiki Komachi.
5) Use after free in hns3_nic_maybe_stop_tx(), from Yunsheng Lin.
6) Out of bounds access in mqprio_dump(), from Vladyslav Tarasiuk.
7) Fix flow dissection in dsa TX path, from Alexander Lobakin.
8) Stale syncookie timestampe fixes from Guillaume Nault.
[ Did an evil merge to silence a warning introduced by this pull - Linus ]
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits)
r8169: fix rtl_hw_jumbo_disable for RTL8168evl
net_sched: validate TCA_KIND attribute in tc_chain_tmplt_add()
r8169: add missing RX enabling for WoL on RTL8125
vhost/vsock: accept only packets with the right dst_cid
net: phy: dp83867: fix hfs boot in rgmii mode
net: ethernet: ti: cpsw: fix extra rx interrupt
inet: protect against too small mtu values.
gre: refetch erspan header from skb->data after pskb_may_pull()
pppoe: remove redundant BUG_ON() check in pppoe_pernet
tcp: Protect accesses to .ts_recent_stamp with {READ,WRITE}_ONCE()
tcp: tighten acceptance of ACKs not matching a child socket
tcp: fix rejected syncookies due to stale timestamps
lpc_eth: kernel BUG on remove
tcp: md5: fix potential overestimation of TCP option space
net: sched: allow indirect blocks to bind to clsact in TC
net: core: rename indirect block ingress cb function
net-sysfs: Call dev_hold always in netdev_queue_add_kobject
net: dsa: fix flow dissection on Tx path
net/tls: Fix return values to avoid ENOTSUPP
net: avoid an indirect call in ____sys_recvmsg()
...
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Valentin Vidic
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4a5cdc604b |
net/tls: Fix return values to avoid ENOTSUPP
ENOTSUPP is not available in userspace, for example: setsockopt failed, 524, Unknown error 524 Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Yonghong Song
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8f9081c925 |
selftests/bpf: Add a fexit/bpf2bpf test with target bpf prog no callees
The existing fexit_bpf2bpf test covers the target progrm with callees. This patch added a test for the target program without callees. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191205010607.177904-1-yhs@fb.com |
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Heiher
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f2728fe80c |
selftests: add epoll selftests
This adds the promised selftest for epoll. It will verify the wakeups of epoll. Including leaf and nested mode, epoll_wait() and poll() and multi-threads. Link: http://lkml.kernel.org/r/20191009121518.4027-1-r@hev.cc Signed-off-by: hev <r@hev.cc> Reviewed-by: Roman Penyaev <rpenyaev@suse.de> Cc: Jason Baron <jbaron@akamai.com> 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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Stanislav Fomichev
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ef8c84effc |
selftests/bpf: De-flake test_tcpbpf
It looks like BPF program that handles BPF_SOCK_OPS_STATE_CB state
can race with the bpf_map_lookup_elem("global_map"); I sometimes
see the failures in this test and re-running helps.
Since we know that we expect the callback to be called 3 times (one
time for listener socket, two times for both ends of the connection),
let's export this number and add simple retry logic around that.
Also, let's make EXPECT_EQ() not return on failure, but continue
evaluating all conditions; that should make potential debugging
easier.
With this fix in place I don't observe the flakiness anymore.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Lawrence Brakmo <brakmo@fb.com>
Link: https://lore.kernel.org/bpf/20191204190955.170934-1-sdf@google.com
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Stanislav Fomichev
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6bf6affe18 |
selftests/bpf: Bring back c++ include/link test
Commit |
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Stanislav Fomichev
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01d434ce98 |
selftests/bpf: Don't hard-code root cgroup id
Commit |
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Linus Torvalds
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e30dbe50dc |
linux-kselftest-5.5-rc1-fixes2
This second Kselftest fixes update for Linux 5.5-rc1 consists of an urgent revert to fix regression in CI coverage. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl3lLFEACgkQCwJExA0N Qxy3zRAA4jAHEGGA5BMSAWBnEw/9fH5s5IJeLOU3kX/Cnq1KiFtG0WyaZcqEuyqy HecDY8gE2nfLWQlKvPOhzXOefwQHQH8a2IV6xcbyUvgGQ9oGoefBlh/Nyubl9pzL EunP7Do2+/GMEWwiRGZO0vbefgV2YeNPyuATagzmsEzJVTaDG/+RJCFBisP9R9Vv Rad6BK6u35KjDEpSssu4Tci0jA9Vu0JLj1eSMJeHeOwQ2jter/8J1LQtuHLQ2HwV H4kUokdPk6NHvTNNFbcN6Oo04aoTZNQL7C9lhfa5HEE4bfWWm6XpeCl/zxlR8949 4MCQKSaQEy7BpNHAnY2oBo20yYUdpMeKVOwVNMIt6ZypkkHJnHjnVu9yCrPhKwTh H/wuBoRB7vMVU+345VMHZCD/JwPhYm7a5rJN6Ip2tbNEBBmFhyYLFBILXpDENA44 VoW3onU4NXP95I5qK93n3R29QzNvZCCe88FqOf7XrvqZDElIPAVdCwpEqong9WC1 thFBg5M7FjI8zHbfFVWR4h3AEdelnlSw4iCA+Ce5AZ/X/Nkd2WvHsKRWC/gz4v37 s9vIP9+YuztfH6b2MrPv2//z7utSD+Lthk9UB3NVvS0RuevNeVuwqgxO6crvfCyy GQFBpsyoBRQ4hTxd8HzC6cxPVYSgXa2dlKS1PBp6YwlrJ7Vb60I= =tLA/ -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-5.5-rc1-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull more kselftest fixes from Shuah Khan: "This second Kselftest fixes update for Linux 5.5-rc1 consists of an urgent revert to fix regression in CI coverage" * tag 'linux-kselftest-5.5-rc1-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: Revert "selftests: Fix O= and KBUILD_OUTPUT handling for relative paths" |
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David S. Miller
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734c7022ad |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says: ==================== pull-request: bpf 2019-12-02 The following pull-request contains BPF updates for your *net* tree. We've added 10 non-merge commits during the last 6 day(s) which contain a total of 10 files changed, 60 insertions(+), 51 deletions(-). The main changes are: 1) Fix vmlinux BTF generation for binutils pre v2.25, from Stanislav Fomichev. 2) Fix libbpf global variable relocation to take symbol's st_value offset into account, from Andrii Nakryiko. 3) Fix libbpf build on powerpc where check_abi target fails due to different readelf output format, from Aurelien Jarno. 4) Don't set BPF insns RO for the case when they are JITed in order to avoid fragmenting the direct map, from Daniel Borkmann. 5) Fix static checker warning in btf_distill_func_proto() as well as a build error due to empty enum when BPF is compiled out, from Alexei Starovoitov. 6) Fix up generation of bpf_helper_defs.h for perf, from Arnaldo Carvalho de Melo. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linus Torvalds
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596cf45cbf |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: "Incoming: - a small number of updates to scripts/, ocfs2 and fs/buffer.c - most of MM I still have quite a lot of material (mostly not MM) staged after linux-next due to -next dependencies. I'll send those across next week as the preprequisites get merged up" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (135 commits) mm/page_io.c: annotate refault stalls from swap_readpage mm/Kconfig: fix trivial help text punctuation mm/Kconfig: fix indentation mm/memory_hotplug.c: remove __online_page_set_limits() mm: fix typos in comments when calling __SetPageUptodate() mm: fix struct member name in function comments mm/shmem.c: cast the type of unmap_start to u64 mm: shmem: use proper gfp flags for shmem_writepage() mm/shmem.c: make array 'values' static const, makes object smaller userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK fs/userfaultfd.c: wp: clear VM_UFFD_MISSING or VM_UFFD_WP during userfaultfd_register() userfaultfd: wrap the common dst_vma check into an inlined function userfaultfd: remove unnecessary WARN_ON() in __mcopy_atomic_hugetlb() userfaultfd: use vma_pagesize for all huge page size calculation mm/madvise.c: use PAGE_ALIGN[ED] for range checking mm/madvise.c: replace with page_size() in madvise_inject_error() mm/mmap.c: make vma_merge() comment more easy to understand mm/hwpoison-inject: use DEFINE_DEBUGFS_ATTRIBUTE to define debugfs fops autonuma: reduce cache footprint when scanning page tables autonuma: fix watermark checking in migrate_balanced_pgdat() ... |
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Linus Torvalds
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c3bfc5dd73 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
1) Fix several scatter gather list issues in kTLS code, from Jakub
Kicinski.
2) macb driver device remove has to kill the hresp_err_tasklet. From
Chuhong Yuan.
3) Several memory leak and reference count bug fixes in tipc, from Tung
Nguyen.
4) Fix mlx5 build error w/o ipv6, from Yue Haibing.
5) Fix jumbo frame and other regressions in r8169, from Heiner
Kallweit.
6) Undo some BUG_ON()'s and replace them with WARN_ON_ONCE and proper
error propagation/handling. From Paolo Abeni.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (24 commits)
openvswitch: remove another BUG_ON()
openvswitch: drop unneeded BUG_ON() in ovs_flow_cmd_build_info()
net: phy: realtek: fix using paged operations with RTL8105e / RTL8208
r8169: fix resume on cable plug-in
r8169: fix jumbo configuration for RTL8168evl
net: emulex: benet: indent a Kconfig depends continuation line
selftests: forwarding: fix race between packet receive and tc check
net: sched: fix `tc -s class show` no bstats on class with nolock subqueues
net: ethernet: ti: ale: ensure vlan/mdb deleted when no members
net/mlx5e: Fix build error without IPV6
selftests: pmtu: use -oneline for ip route list cache
tipc: fix duplicate SYN messages under link congestion
tipc: fix wrong timeout input for tipc_wait_for_cond()
tipc: fix wrong socket reference counter after tipc_sk_timeout() returns
tipc: fix potential memory leak in __tipc_sendmsg()
net: macb: add missed tasklet_kill
selftests: bpf: correct perror strings
selftests: bpf: test_sockmap: handle file creation failures gracefully
net/tls: use sg_next() to walk sg entries
net/tls: remove the dead inplace_crypto code
...
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Linus Torvalds
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e5b3fc125d |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Various fixes:
- Fix the PAT performance regression that downgraded write-combining
device memory regions to uncached.
- There's been a number of bugs in 32-bit double fault handling -
hopefully all fixed now.
- Fix an LDT crash
- Fix an FPU over-optimization that broke with GCC9 code
optimizations.
- Misc cleanups"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/pat: Fix off-by-one bugs in interval tree search
x86/ioperm: Save an indentation level in tss_update_io_bitmap()
x86/fpu: Don't cache access to fpu_fpregs_owner_ctx
x86/entry/32: Remove unused 'restore_all_notrace' local label
x86/ptrace: Document FSBASE and GSBASE ABI oddities
x86/ptrace: Remove set_segment_reg() implementations for current
x86/traps: die() instead of panicking on a double fault
x86/doublefault/32: Rewrite the x86_32 #DF handler and unify with 64-bit
x86/doublefault/32: Move #DF stack and TSS to cpu_entry_area
x86/doublefault/32: Rename doublefault.c to doublefault_32.c
x86/traps: Disentangle the 32-bit and 64-bit doublefault code
lkdtm: Add a DOUBLE_FAULT crash type on x86
selftests/x86/single_step_syscall: Check SYSENTER directly
x86/mm/32: Sync only to VMALLOC_END in vmalloc_sync_all()
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Anders Roxell
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746dd4012d |
selftests: vm: add fragment CONFIG_TEST_VMALLOC
When running test_vmalloc.sh smoke the following print out states that
the fragment is missing.
# ./test_vmalloc.sh: You must have the following enabled in your kernel:
# CONFIG_TEST_VMALLOC=m
Rework to add the fragment 'CONFIG_TEST_VMALLOC=m' to the config file.
Link: http://lkml.kernel.org/r/20190916095217.19665-1-anders.roxell@linaro.org
Fixes:
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Joel Fernandes (Google)
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2e53c4e1c8 |
memfd: add test for COW on MAP_PRIVATE and F_SEAL_FUTURE_WRITE mappings
In this test, the parent and child both have writable private mappings. The test shows that without the patch in this series, the parent and child shared the same memory which is incorrect. In other words, COW needs to be triggered so any writes to child's copy stays local to the child. Link: http://lkml.kernel.org/r/20191107195355.80608-2-joel@joelfernandes.org Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Cc: Hugh Dickins <hughd@google.com> Cc: Nicolas Geoffray <ngeoffray@google.com> 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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Linus Torvalds
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b94ae8ad9f |
seccomp updates for v5.5
- implement SECCOMP_USER_NOTIF_FLAG_CONTINUE (Christian Brauner) - fixes to selftests (Christian Brauner) - remove secure_computing() argument (Christian Brauner) -----BEGIN PGP SIGNATURE----- Comment: Kees Cook <kees@outflux.net> iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAl3dT/kWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJg7eD/9PFh0xAgk7swWIOnkv/Ckj6pqR lcnVaugsap2sp99P+QxVPoqKoBsHF/OZ96OqJcokljdWO77ElBMG4Xxgjho/mPPU Yzhsd9/Q0j4zYIe/Gy+4LxZ+wSudBxv7ls4l86fst1GWg880VkLk32/1N0BUjFAp uyBBaEuDoXcnkru8ojKH1xgp0Cd1KjyO1KEAQdkSt2GROo3nhROh9955Hrrxuanr 0sjWLYe8E8P3hPugRI/3WRZu4VqdIn47pm+/UMPwGpC80kI+mSL1jtidszqC022w u0H5yoedEhZCan7uHWtEY1TXfwgktUKMZOzMP8LSoZ9cNPAFyKXsFqN7Jzf/1Edr 9Zsc+9gc3lfBr6YYBSHUC4XYGzZ2fy0itK/yRTvZdUGO/XETrE61fR/wyVjQttRS OR1tAtmd9/3iZqe1jh1l3Rw4bJh1w/hS768sWpp8qAMunCGF5gQvFdqGFAxjIS5c Ddd0gjxK/NV72+iUzCSL0qUXcYjNYPT4cUapywBuQ4H1i4hl5EM3nGyCbLFbpqkp L2fzeAdRGSZIzZ35emTWhvSLZ36Ty64zEViNbAOP9o/+j6/SR5TjL1aNDkz69Eca GM1XiDeg4AoamtPR38+DzS+EnzBWfOD6ujsKNFgjAJbVIaa414Vql9utrq7fSvf2 OIJjAD8PZKN93t1qaw== =igQG -----END PGP SIGNATURE----- Merge tag 'seccomp-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp updates from Kees Cook: "Mostly this is implementing the new flag SECCOMP_USER_NOTIF_FLAG_CONTINUE, but there are cleanups as well. - implement SECCOMP_USER_NOTIF_FLAG_CONTINUE (Christian Brauner) - fixes to selftests (Christian Brauner) - remove secure_computing() argument (Christian Brauner)" * tag 'seccomp-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: seccomp: rework define for SECCOMP_USER_NOTIF_FLAG_CONTINUE seccomp: fix SECCOMP_USER_NOTIF_FLAG_CONTINUE test seccomp: simplify secure_computing() seccomp: test SECCOMP_USER_NOTIF_FLAG_CONTINUE seccomp: add SECCOMP_USER_NOTIF_FLAG_CONTINUE seccomp: avoid overflow in implicit constant conversion |
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Linus Torvalds
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7794b1d418 |
powerpc updates for 5.5
Highlights:
- Infrastructure for secure boot on some bare metal Power9 machines. The
firmware support is still in development, so the code here won't actually
activate secure boot on any existing systems.
- A change to xmon (our crash handler / pseudo-debugger) to restrict it to
read-only mode when the kernel is lockdown'ed, otherwise it's trivial to drop
into xmon and modify kernel data, such as the lockdown state.
- Support for KASLR on 32-bit BookE machines (Freescale / NXP).
- Fixes for our flush_icache_range() and __kernel_sync_dicache() (VDSO) to work
with memory ranges >4GB.
- Some reworks of the pseries CMM (Cooperative Memory Management) driver to
make it behave more like other balloon drivers and enable some cleanups of
generic mm code.
- A series of fixes to our hardware breakpoint support to properly handle
unaligned watchpoint addresses.
Plus a bunch of other smaller improvements, fixes and cleanups.
Thanks to:
Alastair D'Silva, Andrew Donnellan, Aneesh Kumar K.V, Anthony Steinhauser,
Cédric Le Goater, Chris Packham, Chris Smart, Christophe Leroy, Christopher M.
Riedl, Christoph Hellwig, Claudio Carvalho, Daniel Axtens, David Hildenbrand,
Deb McLemore, Diana Craciun, Eric Richter, Geert Uytterhoeven, Greg
Kroah-Hartman, Greg Kurz, Gustavo L. F. Walbon, Hari Bathini, Harish, Jason
Yan, Krzysztof Kozlowski, Leonardo Bras, Mathieu Malaterre, Mauro S. M.
Rodrigues, Michal Suchanek, Mimi Zohar, Nathan Chancellor, Nathan Lynch, Nayna
Jain, Nick Desaulniers, Oliver O'Halloran, Qian Cai, Rasmus Villemoes, Ravi
Bangoria, Sam Bobroff, Santosh Sivaraj, Scott Wood, Thomas Huth, Tyrel
Datwyler, Vaibhav Jain, Valentin Longchamp, YueHaibing.
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Merge tag 'powerpc-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- Infrastructure for secure boot on some bare metal Power9 machines.
The firmware support is still in development, so the code here
won't actually activate secure boot on any existing systems.
- A change to xmon (our crash handler / pseudo-debugger) to restrict
it to read-only mode when the kernel is lockdown'ed, otherwise it's
trivial to drop into xmon and modify kernel data, such as the
lockdown state.
- Support for KASLR on 32-bit BookE machines (Freescale / NXP).
- Fixes for our flush_icache_range() and __kernel_sync_dicache()
(VDSO) to work with memory ranges >4GB.
- Some reworks of the pseries CMM (Cooperative Memory Management)
driver to make it behave more like other balloon drivers and enable
some cleanups of generic mm code.
- A series of fixes to our hardware breakpoint support to properly
handle unaligned watchpoint addresses.
Plus a bunch of other smaller improvements, fixes and cleanups.
Thanks to: Alastair D'Silva, Andrew Donnellan, Aneesh Kumar K.V,
Anthony Steinhauser, Cédric Le Goater, Chris Packham, Chris Smart,
Christophe Leroy, Christopher M. Riedl, Christoph Hellwig, Claudio
Carvalho, Daniel Axtens, David Hildenbrand, Deb McLemore, Diana
Craciun, Eric Richter, Geert Uytterhoeven, Greg Kroah-Hartman, Greg
Kurz, Gustavo L. F. Walbon, Hari Bathini, Harish, Jason Yan, Krzysztof
Kozlowski, Leonardo Bras, Mathieu Malaterre, Mauro S. M. Rodrigues,
Michal Suchanek, Mimi Zohar, Nathan Chancellor, Nathan Lynch, Nayna
Jain, Nick Desaulniers, Oliver O'Halloran, Qian Cai, Rasmus Villemoes,
Ravi Bangoria, Sam Bobroff, Santosh Sivaraj, Scott Wood, Thomas Huth,
Tyrel Datwyler, Vaibhav Jain, Valentin Longchamp, YueHaibing"
* tag 'powerpc-5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (144 commits)
powerpc/fixmap: fix crash with HIGHMEM
x86/efi: remove unused variables
powerpc: Define arch_is_kernel_initmem_freed() for lockdep
powerpc/prom_init: Use -ffreestanding to avoid a reference to bcmp
powerpc: Avoid clang warnings around setjmp and longjmp
powerpc: Don't add -mabi= flags when building with Clang
powerpc: Fix Kconfig indentation
powerpc/fixmap: don't clear fixmap area in paging_init()
selftests/powerpc: spectre_v2 test must be built 64-bit
powerpc/powernv: Disable native PCIe port management
powerpc/kexec: Move kexec files into a dedicated subdir.
powerpc/32: Split kexec low level code out of misc_32.S
powerpc/sysdev: drop simple gpio
powerpc/83xx: map IMMR with a BAT.
powerpc/32s: automatically allocate BAT in setbat()
powerpc/ioremap: warn on early use of ioremap()
powerpc: Add support for GENERIC_EARLY_IOREMAP
powerpc/fixmap: Use __fix_to_virt() instead of fix_to_virt()
powerpc/8xx: use the fixmapped IMMR in cpm_reset()
powerpc/8xx: add __init to cpm1 init functions
...
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Jiri Pirko
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408469d31e |
selftests: forwarding: fix race between packet receive and tc check
It is possible that tc stats get checked before the packet we check for
actually arrived into the interface and accounted for.
Fix it by checking for the expected result in a loop until
timeout is reached (by default 1 second).
Fixes:
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Thadeu Lima de Souza Cascardo
|
2745aea675 |
selftests: pmtu: use -oneline for ip route list cache
Some versions of iproute2 will output more than one line per entry, which
will cause the test to fail, like:
TEST: ipv6: list and flush cached exceptions [FAIL]
can't list cached exceptions
That happens, for example, with iproute2 4.15.0. When using the -oneline
option, this will work just fine:
TEST: ipv6: list and flush cached exceptions [ OK ]
This also works just fine with a more recent version of iproute2, like
5.4.0.
For some reason, two lines are printed for the IPv4 test no matter what
version of iproute2 is used. Use the same -oneline parameter there instead
of counting the lines twice.
Fixes:
|
|
|
Jakub Kicinski
|
e5dc9dd325 |
selftests: bpf: correct perror strings
perror(str) is basically equivalent to
print("%s: %s\n", str, strerror(errno)).
New line or colon at the end of str is
a mistake/breaks formatting.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
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Jakub Kicinski
|
4b67c51503 |
selftests: bpf: test_sockmap: handle file creation failures gracefully
test_sockmap creates a temporary file to use for sendpage. this may fail for various reasons. Handle the error rather than segfault. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
Jakub Kicinski
|
65190f7742 |
selftests/tls: add a test for fragmented messages
Add a sendmsg test with very fragmented messages. This should fill up sk_msg and test the boundary conditions. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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|
Shuah Khan
|
f60b85e836 |
Revert "selftests: Fix O= and KBUILD_OUTPUT handling for relative paths"
This reverts commit |
|
|
Andrii Nakryiko
|
53f8dd434b |
libbpf: Fix global variable relocation
Similarly to |
|
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Linus Torvalds
|
95f1fa9e34 |
New tracing features:
- PERAMAENT flag to ftrace_ops when attaching a callback to a function
As /proc/sys/kernel/ftrace_enabled when set to zero will disable all
attached callbacks in ftrace, this has a detrimental impact on live
kernel tracing, as it disables all that it patched. If a ftrace_ops
is registered to ftrace with the PERMANENT flag set, it will prevent
ftrace_enabled from being disabled, and if ftrace_enabled is already
disabled, it will prevent a ftrace_ops with PREMANENT flag set from
being registered.
- New register_ftrace_direct(). As eBPF would like to register its own
trampolines to be called by the ftrace nop locations directly,
without going through the ftrace trampoline, this function has been
added. This allows for eBPF trampolines to live along side of
ftrace, perf, kprobe and live patching. It also utilizes the ftrace
enabled_functions file that keeps track of functions that have been
modified in the kernel, to allow for security auditing.
- Allow for kernel internal use of ftrace instances. Subsystems in
the kernel can now create and destroy their own tracing instances
which allows them to have their own tracing buffer, and be able
to record events without worrying about other users from writing over
their data.
- New seq_buf_hex_dump() that lets users use the hex_dump() in their
seq_buf usage.
- Notifications now added to tracing_max_latency to allow user space
to know when a new max latency is hit by one of the latency tracers.
- Wider spread use of generic compare operations for use of bsearch and
friends.
- More synthetic event fields may be defined (32 up from 16)
- Use of xarray for architectures with sparse system calls, for the
system call trace events.
This along with small clean ups and fixes.
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Merge tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"New tracing features:
- New PERMANENT flag to ftrace_ops when attaching a callback to a
function.
As /proc/sys/kernel/ftrace_enabled when set to zero will disable
all attached callbacks in ftrace, this has a detrimental impact on
live kernel tracing, as it disables all that it patched. If a
ftrace_ops is registered to ftrace with the PERMANENT flag set, it
will prevent ftrace_enabled from being disabled, and if
ftrace_enabled is already disabled, it will prevent a ftrace_ops
with PREMANENT flag set from being registered.
- New register_ftrace_direct().
As eBPF would like to register its own trampolines to be called by
the ftrace nop locations directly, without going through the ftrace
trampoline, this function has been added. This allows for eBPF
trampolines to live along side of ftrace, perf, kprobe and live
patching. It also utilizes the ftrace enabled_functions file that
keeps track of functions that have been modified in the kernel, to
allow for security auditing.
- Allow for kernel internal use of ftrace instances.
Subsystems in the kernel can now create and destroy their own
tracing instances which allows them to have their own tracing
buffer, and be able to record events without worrying about other
users from writing over their data.
- New seq_buf_hex_dump() that lets users use the hex_dump() in their
seq_buf usage.
- Notifications now added to tracing_max_latency to allow user space
to know when a new max latency is hit by one of the latency
tracers.
- Wider spread use of generic compare operations for use of bsearch
and friends.
- More synthetic event fields may be defined (32 up from 16)
- Use of xarray for architectures with sparse system calls, for the
system call trace events.
This along with small clean ups and fixes"
* tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (51 commits)
tracing: Enable syscall optimization for MIPS
tracing: Use xarray for syscall trace events
tracing: Sample module to demonstrate kernel access to Ftrace instances.
tracing: Adding new functions for kernel access to Ftrace instances
tracing: Fix Kconfig indentation
ring-buffer: Fix typos in function ring_buffer_producer
ftrace: Use BIT() macro
ftrace: Return ENOTSUPP when DYNAMIC_FTRACE_WITH_DIRECT_CALLS is not configured
ftrace: Rename ftrace_graph_stub to ftrace_stub_graph
ftrace: Add a helper function to modify_ftrace_direct() to allow arch optimization
ftrace: Add helper find_direct_entry() to consolidate code
ftrace: Add another check for match in register_ftrace_direct()
ftrace: Fix accounting bug with direct->count in register_ftrace_direct()
ftrace/selftests: Fix spelling mistake "wakeing" -> "waking"
tracing: Increase SYNTH_FIELDS_MAX for synthetic_events
ftrace/samples: Add a sample module that implements modify_ftrace_direct()
ftrace: Add modify_ftrace_direct()
tracing: Add missing "inline" in stub function of latency_fsnotify()
tracing: Remove stray tab in TRACE_EVAL_MAP_FILE's help text
tracing: Use seq_buf_hex_dump() to dump buffers
...
|
|
|
Linus Torvalds
|
6a0e20cd8c |
First set of RISC-V updates for v5.5-rc1
New features:
- SECCOMP support
- nommu support
- SBI-less system support
- M-Mode support
- TLB flush optimizations
Other improvements:
- Pass the complete RISC-V ISA string supported by the CPU cores to
userspace, rather than redacting parts of it in the kernel
- Add platform DMA IP block data to the HiFive Unleashed board DT file
- Add Makefile support for BZ2, LZ4, LZMA, LZO kernel image
compression formats, in line with other architectures
Cleanups:
- Remove unnecessary PTE_PARENT_SIZE macro
- Standardize include guard naming across arch/riscv
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Merge tag 'riscv/for-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"New features:
- SECCOMP support
- nommu support
- SBI-less system support
- M-Mode support
- TLB flush optimizations
Other improvements:
- Pass the complete RISC-V ISA string supported by the CPU cores to
userspace, rather than redacting parts of it in the kernel
- Add platform DMA IP block data to the HiFive Unleashed board DT
file
- Add Makefile support for BZ2, LZ4, LZMA, LZO kernel image
compression formats, in line with other architectures
Cleanups:
- Remove unnecessary PTE_PARENT_SIZE macro
- Standardize include guard naming across arch/riscv"
* tag 'riscv/for-v5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (22 commits)
riscv: provide a flat image loader
riscv: add nommu support
riscv: clear the instruction cache and all registers when booting
riscv: read the hart ID from mhartid on boot
riscv: provide native clint access for M-mode
riscv: dts: add support for PDMA device of HiFive Unleashed Rev A00
riscv: add support for MMIO access to the timer registers
riscv: implement remote sfence.i using IPIs
riscv: cleanup the default power off implementation
riscv: poison SBI calls for M-mode
riscv: don't allow selecting SBI based drivers for M-mode
RISC-V: Add multiple compression image format.
riscv: clean up the macro format in each header file
riscv: Use PMD_SIZE to replace PTE_PARENT_SIZE
riscv: abstract out CSR names for supervisor vs machine mode
riscv: separate MMIO functions into their own header file
riscv: enter WFI in default_power_off() if SBI does not shutdown
RISC-V: Issue a tlb page flush if possible
RISC-V: Issue a local tlbflush if possible.
RISC-V: Do not invoke SBI call if cpumask is empty
...
|
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Linus Torvalds
|
1ae78780ed |
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
"The main changes in this cycle were:
- Dynamic tick (nohz) updates, perhaps most notably changes to force
the tick on when needed due to lengthy in-kernel execution on CPUs
on which RCU is waiting.
- Linux-kernel memory consistency model updates.
- Replace rcu_swap_protected() with rcu_prepace_pointer().
- Torture-test updates.
- Documentation updates.
- Miscellaneous fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer()
net/sched: Replace rcu_swap_protected() with rcu_replace_pointer()
net/netfilter: Replace rcu_swap_protected() with rcu_replace_pointer()
net/core: Replace rcu_swap_protected() with rcu_replace_pointer()
bpf/cgroup: Replace rcu_swap_protected() with rcu_replace_pointer()
fs/afs: Replace rcu_swap_protected() with rcu_replace_pointer()
drivers/scsi: Replace rcu_swap_protected() with rcu_replace_pointer()
drm/i915: Replace rcu_swap_protected() with rcu_replace_pointer()
x86/kvm/pmu: Replace rcu_swap_protected() with rcu_replace_pointer()
rcu: Upgrade rcu_swap_protected() to rcu_replace_pointer()
rcu: Suppress levelspread uninitialized messages
rcu: Fix uninitialized variable in nocb_gp_wait()
rcu: Update descriptions for rcu_future_grace_period tracepoint
rcu: Update descriptions for rcu_nocb_wake tracepoint
rcu: Remove obsolete descriptions for rcu_barrier tracepoint
rcu: Ensure that ->rcu_urgent_qs is set before resched IPI
workqueue: Convert for_each_wq to use built-in list check
rcu: Several rcu_segcblist functions can be static
rcu: Remove unused function hlist_bl_del_init_rcu()
Documentation: Rename rcu_node_context_switch() to rcu_note_context_switch()
...
|
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Andy Lutomirski
|
3300c4f3af |
selftests/x86/single_step_syscall: Check SYSENTER directly
We used to test SYSENTER only through the vDSO. Test it directly too, just in case. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Torvalds
|
ab851d49f6 |
Merge branch 'x86-iopl-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 iopl updates from Ingo Molnar: "This implements a nice simplification of the iopl and ioperm code that Thomas Gleixner discovered: we can implement the IO privilege features of the iopl system call by using the IO permission bitmap in permissive mode, while trapping CLI/STI/POPF/PUSHF uses in user-space if they change the interrupt flag. This implements that feature, with testing facilities and related cleanups" [ "Simplification" may be an over-statement. The main goal is to avoid the cli/sti of iopl by effectively implementing the IO port access parts of iopl in terms of ioperm. This may end up not workign well in case people actually depend on cli/sti being available, or if there are mixed uses of iopl and ioperm. We will see.. - Linus ] * 'x86-iopl-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits) x86/ioperm: Fix use of deprecated config option x86/entry/32: Clarify register saving in __switch_to_asm() selftests/x86/iopl: Extend test to cover IOPL emulation x86/ioperm: Extend IOPL config to control ioperm() as well x86/iopl: Remove legacy IOPL option x86/iopl: Restrict iopl() permission scope x86/iopl: Fixup misleading comment selftests/x86/ioperm: Extend testing so the shared bitmap is exercised x86/ioperm: Share I/O bitmap if identical x86/ioperm: Remove bitmap if all permissions dropped x86/ioperm: Move TSS bitmap update to exit to user work x86/ioperm: Add bitmap sequence number x86/ioperm: Move iobitmap data into a struct x86/tss: Move I/O bitmap data into a seperate struct x86/io: Speedup schedule out of I/O bitmap user x86/ioperm: Avoid bitmap allocation if no permissions are set x86/ioperm: Simplify first ioperm() invocation logic x86/iopl: Cleanup include maze x86/tss: Fix and move VMX BUILD_BUG_ON() x86/cpu: Unify cpu_init() ... |
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Linus Torvalds
|
5c4a1c090d |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"These are the fixes left over from the v5.4 cycle:
- Various low level 32-bit entry code fixes and improvements by Andy
Lutomirski, Peter Zijlstra and Thomas Gleixner.
- Fix 32-bit Xen PV breakage, by Jan Beulich"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry/32: Fix FIXUP_ESPFIX_STACK with user CR3
x86/pti/32: Calculate the various PTI cpu_entry_area sizes correctly, make the CPU_ENTRY_AREA_PAGES assert precise
selftests/x86/sigreturn/32: Invalidate DS and ES when abusing the kernel
selftests/x86/mov_ss_trap: Fix the SYSENTER test
x86/entry/32: Fix NMI vs ESPFIX
x86/entry/32: Unwind the ESPFIX stack earlier on exception entry
x86/entry/32: Move FIXUP_FRAME after pushing %fs in SAVE_ALL
x86/entry/32: Use %ss segment where required
x86/entry/32: Fix IRET exception
x86/cpu_entry_area: Add guard page for entry stack on 32bit
x86/pti/32: Size initial_page_table correctly
x86/doublefault/32: Fix stack canaries in the double fault handler
x86/xen/32: Simplify ring check in xen_iret_crit_fixup()
x86/xen/32: Make xen_iret_crit_fixup() independent of frame layout
x86/stackframe/32: Repair 32-bit Xen PV
|
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Linus Torvalds
|
386403a115 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
"Another merge window, another pull full of stuff:
1) Support alternative names for network devices, from Jiri Pirko.
2) Introduce per-netns netdev notifiers, also from Jiri Pirko.
3) Support MSG_PEEK in vsock/virtio, from Matias Ezequiel Vara
Larsen.
4) Allow compiling out the TLS TOE code, from Jakub Kicinski.
5) Add several new tracepoints to the kTLS code, also from Jakub.
6) Support set channels ethtool callback in ena driver, from Sameeh
Jubran.
7) New SCTP events SCTP_ADDR_ADDED, SCTP_ADDR_REMOVED,
SCTP_ADDR_MADE_PRIM, and SCTP_SEND_FAILED_EVENT. From Xin Long.
8) Add XDP support to mvneta driver, from Lorenzo Bianconi.
9) Lots of netfilter hw offload fixes, cleanups and enhancements,
from Pablo Neira Ayuso.
10) PTP support for aquantia chips, from Egor Pomozov.
11) Add UDP segmentation offload support to igb, ixgbe, and i40e. From
Josh Hunt.
12) Add smart nagle to tipc, from Jon Maloy.
13) Support L2 field rewrite by TC offloads in bnxt_en, from Venkat
Duvvuru.
14) Add a flow mask cache to OVS, from Tonghao Zhang.
15) Add XDP support to ice driver, from Maciej Fijalkowski.
16) Add AF_XDP support to ice driver, from Krzysztof Kazimierczak.
17) Support UDP GSO offload in atlantic driver, from Igor Russkikh.
18) Support it in stmmac driver too, from Jose Abreu.
19) Support TIPC encryption and auth, from Tuong Lien.
20) Introduce BPF trampolines, from Alexei Starovoitov.
21) Make page_pool API more numa friendly, from Saeed Mahameed.
22) Introduce route hints to ipv4 and ipv6, from Paolo Abeni.
23) Add UDP segmentation offload to cxgb4, Rahul Lakkireddy"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1857 commits)
libbpf: Fix usage of u32 in userspace code
mm: Implement no-MMU variant of vmalloc_user_node_flags
slip: Fix use-after-free Read in slip_open
net: dsa: sja1105: fix sja1105_parse_rgmii_delays()
macvlan: schedule bc_work even if error
enetc: add support Credit Based Shaper(CBS) for hardware offload
net: phy: add helpers phy_(un)lock_mdio_bus
mdio_bus: don't use managed reset-controller
ax88179_178a: add ethtool_op_get_ts_info()
mlxsw: spectrum_router: Fix use of uninitialized adjacency index
mlxsw: spectrum_router: After underlay moves, demote conflicting tunnels
bpf: Simplify __bpf_arch_text_poke poke type handling
bpf: Introduce BPF_TRACE_x helper for the tracing tests
bpf: Add bpf_jit_blinding_enabled for !CONFIG_BPF_JIT
bpf, testing: Add various tail call test cases
bpf, x86: Emit patchable direct jump as tail call
bpf: Constant map key tracking for prog array pokes
bpf: Add poke dependency tracking for prog array maps
bpf: Add initial poke descriptor table for jit images
bpf: Move owner type, jited info into array auxiliary data
...
|
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Linus Torvalds
|
f838767555 |
Livepatching changes for 5.5
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|
|
Linus Torvalds
|
1b96a41b42 |
Merge branch 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
"There are several notable changes here:
- Single thread migrating itself has been optimized so that it
doesn't need threadgroup rwsem anymore.
- Freezer optimization to avoid unnecessary frozen state changes.
- cgroup ID unification so that cgroup fs ino is the only unique ID
used for the cgroup and can be used to directly look up live
cgroups through filehandle interface on 64bit ino archs. On 32bit
archs, cgroup fs ino is still the only ID in use but it is only
unique when combined with gen.
- selftest and other changes"
* 'for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (24 commits)
writeback: fix -Wformat compilation warnings
docs: cgroup: mm: Fix spelling of "list"
cgroup: fix incorrect WARN_ON_ONCE() in cgroup_setup_root()
cgroup: use cgrp->kn->id as the cgroup ID
kernfs: use 64bit inos if ino_t is 64bit
kernfs: implement custom exportfs ops and fid type
kernfs: combine ino/id lookup functions into kernfs_find_and_get_node_by_id()
kernfs: convert kernfs_node->id from union kernfs_node_id to u64
kernfs: kernfs_find_and_get_node_by_ino() should only look up activated nodes
kernfs: use dumber locking for kernfs_find_and_get_node_by_ino()
netprio: use css ID instead of cgroup ID
writeback: use ino_t for inodes in tracepoints
kernfs: fix ino wrap-around detection
kselftests: cgroup: Avoid the reuse of fd after it is deallocated
cgroup: freezer: don't change task and cgroups status unnecessarily
cgroup: use cgroup->last_bstat instead of cgroup->bstat_pending for consistency
cgroup: remove cgroup_enable_task_cg_lists() optimization
cgroup: pids: use atomic64_t for pids->limit
selftests: cgroup: Run test_core under interfering stress
selftests: cgroup: Add task migration tests
...
|
|
|
Linus Torvalds
|
0acefef584 |
threads-v5.5
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCXdfjBwAKCRCRxhvAZXjc onCBAP47WZ/ie7yjoDWhOI1QB7II3NGSzToakxpgJaWoB+NjTwEA7PGrSYVEbPrf pUhiEaEJ29t+cWUxX3+yDO+k7SA6BAY= =Ra58 -----END PGP SIGNATURE----- Merge tag 'threads-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull thread management updates from Christian Brauner: - A pidfd's fdinfo file currently contains the field "Pid:\t<pid>" where <pid> is the pid of the process in the pid namespace of the procfs instance the fdinfo file for the pidfd was opened in. The fdinfo file has now gained a new "NSpid:\t<ns-pid1>[\t<ns-pid2>[...]]" field which lists the pids of the process in all child pid namespaces provided the pid namespace of the procfs instance it is looked up under has an ancestoral relationship with the pid namespace of the process. If it does not 0 will be shown and no further pid namespaces will be listed. Tests included. (Christian Kellner) - If the process the pidfd references has already exited, print -1 for the Pid and NSpid fields in the pidfd's fdinfo file. Tests included. (me) - Add CLONE_CLEAR_SIGHAND. This lets callers clear all signal handler that are not SIG_DFL or SIG_IGN at process creation time. This originated as a feature request from glibc to improve performance and elimate races in their posix_spawn() implementation. Tests included. (me) - Add support for choosing a specific pid for a process with clone3(). This is the feature which was part of the thread update for v5.4 but after a discussion at LPC in Lisbon we decided to delay it for one more cycle in order to make the interface more generic. This has now done. It is now possible to choose a specific pid in a whole pid namespaces (sub)hierarchy instead of just one pid namespace. In order to choose a specific pid the caller must have CAP_SYS_ADMIN in all owning user namespaces of the target pid namespaces. Tests included. (Adrian Reber) - Test improvements and extensions. (Andrei Vagin, me) * tag 'threads-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: selftests/clone3: skip if clone3() is ENOSYS selftests/clone3: check that all pids are released on error paths selftests/clone3: report a correct number of fails selftests/clone3: flush stdout and stderr before clone3() and _exit() selftests: add tests for clone3() with *set_tid fork: extend clone3() to support setting a PID selftests: add tests for clone3() tests: test CLONE_CLEAR_SIGHAND clone3: add CLONE_CLEAR_SIGHAND pid: use pid_has_task() in pidfd_open() exit: use pid_has_task() in do_wait() pid: use pid_has_task() in __change_pid() test: verify fdinfo for pidfd of reaped process pidfd: check pid has attached task in fdinfo pidfd: add tests for NSpid info in fdinfo pidfd: add NSpid entries to fdinfo |
|
|
Linus Torvalds
|
752272f16d |
ARM:
- Data abort report and injection
- Steal time support
- GICv4 performance improvements
- vgic ITS emulation fixes
- Simplify FWB handling
- Enable halt polling counters
- Make the emulated timer PREEMPT_RT compliant
s390:
- Small fixes and cleanups
- selftest improvements
- yield improvements
PPC:
- Add capability to tell userspace whether we can single-step the guest.
- Improve the allocation of XIVE virtual processor IDs
- Rewrite interrupt synthesis code to deliver interrupts in virtual
mode when appropriate.
- Minor cleanups and improvements.
x86:
- XSAVES support for AMD
- more accurate report of nested guest TSC to the nested hypervisor
- retpoline optimizations
- support for nested 5-level page tables
- PMU virtualization optimizations, and improved support for nested
PMU virtualization
- correct latching of INITs for nested virtualization
- IOAPIC optimization
- TSX_CTRL virtualization for more TAA happiness
- improved allocation and flushing of SEV ASIDs
- many bugfixes and cleanups
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- data abort report and injection
- steal time support
- GICv4 performance improvements
- vgic ITS emulation fixes
- simplify FWB handling
- enable halt polling counters
- make the emulated timer PREEMPT_RT compliant
s390:
- small fixes and cleanups
- selftest improvements
- yield improvements
PPC:
- add capability to tell userspace whether we can single-step the
guest
- improve the allocation of XIVE virtual processor IDs
- rewrite interrupt synthesis code to deliver interrupts in virtual
mode when appropriate.
- minor cleanups and improvements.
x86:
- XSAVES support for AMD
- more accurate report of nested guest TSC to the nested hypervisor
- retpoline optimizations
- support for nested 5-level page tables
- PMU virtualization optimizations, and improved support for nested
PMU virtualization
- correct latching of INITs for nested virtualization
- IOAPIC optimization
- TSX_CTRL virtualization for more TAA happiness
- improved allocation and flushing of SEV ASIDs
- many bugfixes and cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (127 commits)
kvm: nVMX: Relax guest IA32_FEATURE_CONTROL constraints
KVM: x86: Grab KVM's srcu lock when setting nested state
KVM: x86: Open code shared_msr_update() in its only caller
KVM: Fix jump label out_free_* in kvm_init()
KVM: x86: Remove a spurious export of a static function
KVM: x86: create mmu/ subdirectory
KVM: nVMX: Remove unnecessary TLB flushes on L1<->L2 switches when L1 use apic-access-page
KVM: x86: remove set but not used variable 'called'
KVM: nVMX: Do not mark vmcs02->apic_access_page as dirty when unpinning
KVM: vmx: use MSR_IA32_TSX_CTRL to hard-disable TSX on guest that lack it
KVM: vmx: implement MSR_IA32_TSX_CTRL disable RTM functionality
KVM: x86: implement MSR_IA32_TSX_CTRL effect on CPUID
KVM: x86: do not modify masked bits of shared MSRs
KVM: x86: fix presentation of TSX feature in ARCH_CAPABILITIES
KVM: PPC: Book3S HV: XIVE: Fix potential page leak on error path
KVM: PPC: Book3S HV: XIVE: Free previous EQ page when setting up a new one
KVM: nVMX: Assume TLB entries of L1 and L2 are tagged differently if L0 use EPT
KVM: x86: Unexport kvm_vcpu_reload_apic_access_page()
KVM: nVMX: add CR4_LA57 bit to nested CR4_FIXED1
KVM: nVMX: Use semi-colon instead of comma for exit-handlers initialization
...
|
|
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Linus Torvalds
|
4ba380f616 |
arm64 updates for 5.5:
- On ARMv8 CPUs without hardware updates of the access flag, avoid
failing cow_user_page() on PFN mappings if the pte is old. The patches
introduce an arch_faults_on_old_pte() macro, defined as false on x86.
When true, cow_user_page() makes the pte young before attempting
__copy_from_user_inatomic().
- Covert the synchronous exception handling paths in
arch/arm64/kernel/entry.S to C.
- FTRACE_WITH_REGS support for arm64.
- ZONE_DMA re-introduced on arm64 to support Raspberry Pi 4
- Several kselftest cases specific to arm64, together with a MAINTAINERS
update for these files (moved to the ARM64 PORT entry).
- Workaround for a Neoverse-N1 erratum where the CPU may fetch stale
instructions under certain conditions.
- Workaround for Cortex-A57 and A72 errata where the CPU may
speculatively execute an AT instruction and associate a VMID with the
wrong guest page tables (corrupting the TLB).
- Perf updates for arm64: additional PMU topologies on HiSilicon
platforms, support for CCN-512 interconnect, AXI ID filtering in the
IMX8 DDR PMU, support for the CCPI2 uncore PMU in ThunderX2.
- GICv3 optimisation to avoid a heavy barrier when accessing the
ICC_PMR_EL1 register.
- ELF HWCAP documentation updates and clean-up.
- SMC calling convention conduit code clean-up.
- KASLR diagnostics printed during boot
- NVIDIA Carmel CPU added to the KPTI whitelist
- Some arm64 mm clean-ups: use generic free_initrd_mem(), remove stale
macro, simplify calculation in __create_pgd_mapping(), typos.
- Kconfig clean-ups: CMDLINE_FORCE to depend on CMDLINE, choice for
endinanness to help with allmodconfig.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"Apart from the arm64-specific bits (core arch and perf, new arm64
selftests), it touches the generic cow_user_page() (reviewed by
Kirill) together with a macro for x86 to preserve the existing
behaviour on this architecture.
Summary:
- On ARMv8 CPUs without hardware updates of the access flag, avoid
failing cow_user_page() on PFN mappings if the pte is old. The
patches introduce an arch_faults_on_old_pte() macro, defined as
false on x86. When true, cow_user_page() makes the pte young before
attempting __copy_from_user_inatomic().
- Covert the synchronous exception handling paths in
arch/arm64/kernel/entry.S to C.
- FTRACE_WITH_REGS support for arm64.
- ZONE_DMA re-introduced on arm64 to support Raspberry Pi 4
- Several kselftest cases specific to arm64, together with a
MAINTAINERS update for these files (moved to the ARM64 PORT entry).
- Workaround for a Neoverse-N1 erratum where the CPU may fetch stale
instructions under certain conditions.
- Workaround for Cortex-A57 and A72 errata where the CPU may
speculatively execute an AT instruction and associate a VMID with
the wrong guest page tables (corrupting the TLB).
- Perf updates for arm64: additional PMU topologies on HiSilicon
platforms, support for CCN-512 interconnect, AXI ID filtering in
the IMX8 DDR PMU, support for the CCPI2 uncore PMU in ThunderX2.
- GICv3 optimisation to avoid a heavy barrier when accessing the
ICC_PMR_EL1 register.
- ELF HWCAP documentation updates and clean-up.
- SMC calling convention conduit code clean-up.
- KASLR diagnostics printed during boot
- NVIDIA Carmel CPU added to the KPTI whitelist
- Some arm64 mm clean-ups: use generic free_initrd_mem(), remove
stale macro, simplify calculation in __create_pgd_mapping(), typos.
- Kconfig clean-ups: CMDLINE_FORCE to depend on CMDLINE, choice for
endinanness to help with allmodconfig"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits)
arm64: Kconfig: add a choice for endianness
kselftest: arm64: fix spelling mistake "contiguos" -> "contiguous"
arm64: Kconfig: make CMDLINE_FORCE depend on CMDLINE
MAINTAINERS: Add arm64 selftests to the ARM64 PORT entry
arm64: kaslr: Check command line before looking for a seed
arm64: kaslr: Announce KASLR status on boot
kselftest: arm64: fake_sigreturn_misaligned_sp
kselftest: arm64: fake_sigreturn_bad_size
kselftest: arm64: fake_sigreturn_duplicated_fpsimd
kselftest: arm64: fake_sigreturn_missing_fpsimd
kselftest: arm64: fake_sigreturn_bad_size_for_magic0
kselftest: arm64: fake_sigreturn_bad_magic
kselftest: arm64: add helper get_current_context
kselftest: arm64: extend test_init functionalities
kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht]
kselftest: arm64: mangle_pstate_invalid_daif_bits
kselftest: arm64: mangle_pstate_invalid_compat_toggle and common utils
kselftest: arm64: extend toplevel skeleton Makefile
drivers/perf: hisi: update the sccl_id/ccl_id for certain HiSilicon platform
arm64: mm: reserve CMA and crashkernel in ZONE_DMA32
...
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|
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Linus Torvalds
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e25645b181 |
linux-kselftest-5.5-rc1-kunit
This kselftest update for Linux 5.5-rc1 adds KUnit, a lightweight unit testing and mocking framework for the Linux kernel from Brendan Higgins. KUnit is not an end-to-end testing framework. It is currently supported on UML and sub-systems can write unit tests and run them in UML env. KUnit documentation is included in this update. In addition, this Kunit update adds 3 new kunit tests: - kunit test for proc sysctl from Iurii Zaikin - kunit test for the 'list' doubly linked list from David Gow - ext4 kunit test for decoding extended timestamps from Iurii Zaikin In the future KUnit will be linked to Kselftest framework to provide a way to trigger KUnit tests from user-space. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl3YfBQACgkQCwJExA0N QxzTjxAAiFhaDMhlpLhn1DpIUNvfKrIgDjJgajQAyMMs6TJK3OrD6J4WbpVD7wGo aqF9l6o64sY18JAo3s00j6AcAmVwNH7qzEEuzIQPjJvQ8C4sCWL3esEP4JHgFb2F snlSn5KjSsdC1D9N7uQIhgW76xPSyDrTwWQpglvmB9TwmJVBIl9zhu+unp73ufFJ N+ieDg8A6W/wDGYSq5JBSkJbuI0gL+daNwUYzxEEZIskndhpovOc82WAldECRm6x TfI0u39zTbrEO0DHgmYpyGbTN8TB2mXjH5HMjwg+KbHfKVTKKGvTK7XFs8mWGQpO n2meypZuwuIsRPOPcAVs+Gt2dc0jFODJVIV1EzA0WSv6TEdPqyhM/d13tHdCqjm9 ic5wQ/hQQNEB1Dvg5ereXBaGGaoqP95y61ZpCS9vCXFXH+28E/B63Ebfs2IBIuqS Jv2KcoxabyZq3uGdjnn+mD7IM8rkvscRP4Ba31nXRgJIYDHAzqe7APN7y3on4NGx 1q7lBlA3XZZ8qgo0zpLST20ck/qaL3tk4k8E1f8emh6CuyrCWtazgrWkMIlyEX0O 8nre3uEAF9xUzB4+gZK4YmelN9Bld3Uv7Ippt1zTCiQ0FkEABQIMUrTZygy7Wfg6 6qi4dk8frWW4Kt63gOXsMxr9FWTqDk+Ys4GPAVDVm1d0dzERn8k= =0zEe -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-5.5-rc1-kunit' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest KUnit support gtom Shuah Khan: "This adds KUnit, a lightweight unit testing and mocking framework for the Linux kernel from Brendan Higgins. KUnit is not an end-to-end testing framework. It is currently supported on UML and sub-systems can write unit tests and run them in UML env. KUnit documentation is included in this update. In addition, this Kunit update adds 3 new kunit tests: - proc sysctl test from Iurii Zaikin - the 'list' doubly linked list test from David Gow - ext4 tests for decoding extended timestamps from Iurii Zaikin In the future KUnit will be linked to Kselftest framework to provide a way to trigger KUnit tests from user-space" * tag 'linux-kselftest-5.5-rc1-kunit' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (23 commits) lib/list-test: add a test for the 'list' doubly linked list ext4: add kunit test for decoding extended timestamps Documentation: kunit: Fix verification command kunit: Fix '--build_dir' option kunit: fix failure to build without printk MAINTAINERS: add proc sysctl KUnit test to PROC SYSCTL section kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec() MAINTAINERS: add entry for KUnit the unit testing framework Documentation: kunit: add documentation for KUnit kunit: defconfig: add defconfigs for building KUnit tests kunit: tool: add Python wrappers for running KUnit tests kunit: test: add tests for KUnit managed resources kunit: test: add the concept of assertions kunit: test: add tests for kunit test abort kunit: test: add support for test abort objtool: add kunit_try_catch_throw to the noreturn list kunit: test: add initial tests lib: enable building KUnit in lib/ kunit: test: add the concept of expectations kunit: test: add assertion printing library ... |
|
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Linus Torvalds
|
db7d275415 |
linux-kselftest-5.5-rc1-fixes
This kselftest fixes update for Linux 5.5-rc1 consists of several fixes to tests and framework. Masami Hiramatsu fixed several tests to build and run correctly on arm and other 32bit architectures. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl3YLAsACgkQCwJExA0N QxySoxAAwTJgNDhyxWGLFzlReuILBitWuTbEg1KzlOMjKWHnDBHhO9GYqxScKt5Y fgjjwukvQyai0PGMKd4U+AXtxeSB+Wr9kID7AXuTeDyBOK1iu9Nr++vSkAByJla4 qSVYf+Ja3Zu8kWs3S9rC1zs8dvMutA4FrjW7ig77quFxfSncwqIsTufo53gpBo5e tJ/VakouWiMV7oyDDPzqrs7Uz01CMmEsJXAkyHzb/nc+6NjJUpewRhZGkYXi89Le 2nBvEUUpdLMphds+KxO51+e+5pnU0ZD4PtjGcQ4/SABWWrCvNKJ9Tn398AdcndYX NGQe9eohcSB47YKA+sNagi+B4UBfgz6GtYEsdAy8oNxxEGTg8apKygvIlfjmp8in EMcFF/r6Wwxufx4F9uRFLn48t4d/SAYqCne/RaSwb+IkAe+wyFKeTNP7bwqAwakE Uvfpjoya0n5IXBKV9v6MrJJZKwKw6J9mu51wahmx2MQveW8p4nqnzy3xZ8AWOqb/ BezRWOgs85Yank8ovXfbAtxcdqKfw3BpDDO379OM7syvTMWNbLcfhpZ9wbyxB108 lcPsjrvu2SNzMs21vsyoDkTE/CPl0byr2v4SWOfUq1YTbsxVIveP4qcy9B12C3aR m7vRGLG2HwMrlVZ1mvXY2Tz0Jjhx7S+0eyYYzEBMHGT4zRqxjwU= =KGOl -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-5.5-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "This consists of several fixes to tests and framework. Masami Hiramatsu fixed several tests to build and run correctly on arm and other 32bit architectures" * tag 'linux-kselftest-5.5-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: sync: Fix cast warnings on arm selftests: net: Fix printf format warnings on arm selftests: net: Use size_t and ssize_t for counting file size selftests: vm: Build/Run 64bit tests only on 64bit arch selftests: proc: Make va_max 1MB kselftest: Fix NULL INSTALL_PATH for TARGETS runlist selftests: Move kselftest_module.sh into kselftest/ selftests: gen_kselftest_tar.sh: Do not clobber kselftest/ selftests: breakpoints: Fix a typo of function name selftests: Fix O= and KBUILD_OUTPUT handling for relative paths |
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Petr Mladek
|
0e672adc87 | Merge branch 'for-5.5/system-state' into for-linus | |
|
Martin KaFai Lau
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f9a7cf6eb1 |
bpf: Introduce BPF_TRACE_x helper for the tracing tests
For BPF_PROG_TYPE_TRACING, the bpf_prog's ctx is an array of u64. This patch borrows the idea from BPF_CALL_x in filter.h to convert a u64 to the arg type of the traced function. The new BPF_TRACE_x has an arg to specify the return type of a bpf_prog. It will be used in the future TCP-ops bpf_prog that may return "void". The new macros are defined in the new header file "bpf_trace_helpers.h". It is under selftests/bpf/ for now. It could be moved to libbpf later after seeing more upcoming non-tracing use cases. The tests are changed to use these new macros also. Hence, the k[s]u8/16/32/64 are no longer needed and they are removed from the bpf_helpers.h. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191123202504.1502696-1-kafai@fb.com |
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Daniel Borkmann
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79d49ba048 |
bpf, testing: Add various tail call test cases
Add several BPF kselftest cases for tail calls which test the various patch directions, and that multiple locations are patched in same and different programs. # ./test_progs -n 45 #45/1 tailcall_1:OK #45/2 tailcall_2:OK #45/3 tailcall_3:OK #45/4 tailcall_4:OK #45/5 tailcall_5:OK #45 tailcalls:OK Summary: 1/5 PASSED, 0 SKIPPED, 0 FAILED I've also verified the JITed dump after each of the rewrite cases that it matches expectations. Also regular test_verifier suite passes fine which contains further tail call tests: # ./test_verifier [...] Summary: 1563 PASSED, 0 SKIPPED, 0 FAILED Checked under JIT, interpreter and JIT + hardening. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/3d6cbecbeb171117dccfe153306e479798fb608d.1574452833.git.daniel@iogearbox.net |
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Alexei Starovoitov
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c4781e37c6 |
selftests/bpf: Add BPF trampoline performance test
Add a test that benchmarks different ways of attaching BPF program to a kernel function. Here are the results for 2.4Ghz x86 cpu on a kernel without mitigations: $ ./test_progs -n 49 -v|grep events task_rename base 2743K events per sec task_rename kprobe 2419K events per sec task_rename kretprobe 1876K events per sec task_rename raw_tp 2578K events per sec task_rename fentry 2710K events per sec task_rename fexit 2685K events per sec On a kernel with retpoline: $ ./test_progs -n 49 -v|grep events task_rename base 2401K events per sec task_rename kprobe 1930K events per sec task_rename kretprobe 1485K events per sec task_rename raw_tp 2053K events per sec task_rename fentry 2351K events per sec task_rename fexit 2185K events per sec All 5 approaches: - kprobe/kretprobe in __set_task_comm() - raw tracepoint in trace_task_rename() - fentry/fexit in __set_task_comm() are roughly equivalent. __set_task_comm() by itself is quite fast, so any extra instructions add up. Until BPF trampoline was introduced the fastest mechanism was raw tracepoint. kprobe via ftrace was second best. kretprobe is slow due to trap. New fentry/fexit methods via BPF trampoline are clearly the fastest and the difference is more pronounced with retpoline on, since BPF trampoline doesn't use indirect jumps. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20191122011515.255371-1-ast@kernel.org |
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Yonghong Song
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260cb5df9d |
selftests/bpf: Add verifier tests for better jmp32 register bounds
Three test cases are added.
Test 1: jmp32 'reg op imm'.
Test 2: jmp32 'reg op reg' where dst 'reg' has unknown constant
and src 'reg' has known constant
Test 3: jmp32 'reg op reg' where dst 'reg' has known constant
and src 'reg' has unknown constant
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20191121170651.449096-1-yhs@fb.com
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Andrii Nakryiko
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6147a140c9 |
selftests/bpf: Ensure core_reloc_kernel is reading test_progs's data only
test_core_reloc_kernel.c selftest is the only CO-RE test that reads and
returns for validation calling thread's information (pid, tgid, comm). Thus it
has to make sure that only test_prog's invocations are honored.
Fixes:
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Andrii Nakryiko
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393cdfbee8 |
libbpf: Support initialized global variables
Initialized global variables are no different in ELF from static variables, and don't require any extra support from libbpf. But they are matching semantics of global data (backed by BPF maps) more closely, preventing LLVM/Clang from aggressively inlining constant values and not requiring volatile incantations to prevent those. This patch enables global variables. It still disables uninitialized variables, which will be put into special COM (common) ELF section, because BPF doesn't allow uninitialized data to be accessed. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191121070743.1309473-5-andriin@fb.com |
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Andrii Nakryiko
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ffc88174cd |
selftests/bpf: Ensure no DWARF relocations for BPF object files
Add -mattr=dwarfris attribute to llc to avoid having relocations against DWARF data. These relocations make it impossible to inspect DWARF contents: all strings are invalid. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191121070743.1309473-2-andriin@fb.com |
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Andrii Nakryiko
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a8fdaad5cf |
selftests/bpf: Integrate verbose verifier log into test_progs
Add exra level of verboseness, activated by -vvv argument. When -vv is specified, verbose libbpf and verifier log (level 1) is output, even for successful tests. With -vvv, verifier log goes to level 2. This is extremely useful to debug verifier failures, as well as just see the state and flow of verification. Before this, you'd have to go and modify load_program()'s source code inside libbpf to specify extra log_level flags, which is suboptimal to say the least. Currently -vv and -vvv triggering verifier output is integrated into test_stub's bpf_prog_load as well as bpf_verif_scale.c tests. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191120003548.4159797-1-andriin@fb.com |
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Jakub Kicinski
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5940c5bf65 |
selftests, bpftool: Skip the build test if not in tree
If selftests are copied over to another machine/location for execution the build test of bpftool will obviously not work, since the sources are not copied. Skip it if we can't find bpftool's Makefile. Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20191119105010.19189-3-quentin.monnet@netronome.com |
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Quentin Monnet
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31f8b8295b |
selftests, bpftool: Set EXIT trap after usage function
The trap on EXIT is used to clean up any temporary directory left by the build attempts. It is not needed when the user simply calls the script with its --help option, and may not be needed either if we add checks (e.g. on the availability of bpftool files) before the build attempts. Let's move this trap and related variables lower down in the code, so that we don't accidentally change the value returned from the script on early exits at pre-checks. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Link: https://lore.kernel.org/bpf/20191119105010.19189-2-quentin.monnet@netronome.com |
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Paul Walmsley
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69049d523f | Merge branch 'next/seccomp' into for-next | |
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Andy Lutomirski
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4d2fa82d98 |
selftests/x86/sigreturn/32: Invalidate DS and ES when abusing the kernel
If the kernel accidentally uses DS or ES while the user values are loaded, it will work fine for sane userspace. In the interest of simulating maximally insane userspace, make sigreturn_32 zero out DS and ES for the nasty parts so that inadvertent use of these segments will crash. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: stable@kernel.org |