mirror of https://gitee.com/openkylin/linux.git
143 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
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1ba3b5dc14 |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling updates from Ingo Molnar:
"perf.data:
- Streaming compression of perf ring buffer into
PERF_RECORD_COMPRESSED user space records, resulting in ~3-5x
perf.data file size reduction on variety of tested workloads what
saves storage space on larger server systems where perf.data size
can easily reach several tens or even hundreds of GiBs, especially
when profiling with DWARF-based stacks and tracing of context
switches.
perf record:
- Improve -user-regs/intr-regs suggestions to overcome errors
perf annotate:
- Remove hist__account_cycles() from callback, speeding up branch
processing (perf record -b)
perf stat:
- Add a 'percore' event qualifier, e.g.: -e
cpu/event=0,umask=0x3,percore=1/, that sums up the event counts for
both hardware threads in a core.
We can already do this with --per-core, but it's often useful to do
this together with other metrics that are collected per hardware
thread.
I.e. now its possible to do this per-event, and have it mixed with
other events not aggregated by core.
arm64:
- Map Brahma-B53 CPUID to cortex-a53 events.
- Add Cortex-A57 and Cortex-A72 events.
csky:
- Add DWARF register mappings for libdw, allowing --call-graph=dwarf
to work on the C-SKY arch.
x86:
- Add support for recording and printing XMM registers, available,
for instance, on Icelake.
- Add uncore_upi (Intel's "Ultra Path Interconnect" events) JSON
support. UPI replaced the Intel QuickPath Interconnect (QPI) in
Xeon Skylake-SP.
Intel PT:
- Fix instructions sampling rate.
- Timestamp fixes.
- Improve exported-sql-viewer GUI, allowing, for instance, to
copy'n'paste the trees, useful for e-mailing"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (73 commits)
perf stat: Support 'percore' event qualifier
perf stat: Factor out aggregate counts printing
perf tools: Add a 'percore' event qualifier
perf docs: Add description for stderr
perf intel-pt: Fix sample timestamp wrt non-taken branches
perf intel-pt: Fix improved sample timestamp
perf intel-pt: Fix instructions sampling rate
perf regs x86: Add X86 specific arch__intr_reg_mask()
perf parse-regs: Add generic support for arch__intr/user_reg_mask()
perf parse-regs: Split parse_regs
perf vendor events arm64: Add Cortex-A57 and Cortex-A72 events
perf vendor events arm64: Map Brahma-B53 CPUID to cortex-a53 events
perf vendor events arm64: Remove [[:xdigit:]] wildcard
perf jevents: Remove unused variable
perf test zstd: Fixup verbose mode output
perf tests: Implement Zstd comp/decomp integration test
perf inject: Enable COMPRESSED record decompression
perf report: Implement perf.data record decompression
perf record: Implement -z,--compression_level[=<n>] option
perf report: Add stub processing of compressed events for -D
...
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Ingo Molnar
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62e1c09418 |
perf/core improvements and fixes:
perf.data:
Alexey Budankov:
- Streaming compression of perf ring buffer into PERF_RECORD_COMPRESSED
user space records, resulting in ~3-5x perf.data file size reduction
on variety of tested workloads what saves storage space on larger
server systems where perf.data size can easily reach several tens or
even hundreds of GiBs, especially when profiling with DWARF-based
stacks and tracing of context switches.
perf record:
Arnaldo Carvalho de Melo
- Improve -user-regs/intr-regs suggestions to overcome errors.
perf annotate:
Jin Yao:
- Remove hist__account_cycles() from callback, speeding up branch processing
(perf record -b).
perf stat:
- Add a 'percore' event qualifier, e.g.: -e cpu/event=0,umask=0x3,percore=1/,
that sums up the event counts for both hardware threads in a core.
We can already do this with --per-core, but it's often useful to do
this together with other metrics that are collected per hardware thread.
I.e. now its possible to do this per-event, and have it mixed with other
events not aggregated by core.
core libraries:
Donald Yandt:
- Check for errors when doing fgets(/proc/version).
Jiri Olsa:
- Speed up report for perf compiled with linbunwind.
tools headers:
Arnaldo Carvalho de Melo
- Update memcpy_64.S, x86's kvm.h and pt_regs.h.
arm64:
Florian Fainelli:
- Map Brahma-B53 CPUID to cortex-a53 events.
- Add Cortex-A57 and Cortex-A72 events.
csky:
Mao Han:
- Add DWARF register mappings for libdw, allowing --call-graph=dwarf to work
on the C-SKY arch.
x86:
Andi Kleen/Kan Liang:
- Add support for recording and printing XMM registers, available, for
instance, on Icelake.
Kan Liang:
- Add uncore_upi (Intel's "Ultra Path Interconnect" events) JSON support.
UPI replaced the Intel QuickPath Interconnect (QPI) in Xeon Skylake-SP.
Intel PT:
Adrian Hunter
. Fix instructions sampling rate.
. Timestamp fixes.
. Improve exported-sql-viewer GUI, allowing, for instance, to copy'n'paste
the trees, useful for e-mailing.
Documentation:
Thomas Richter:
- Add description for 'perf --debug stderr=1', which redirects stderr to stdout.
libtraceevent:
Tzvetomir Stoyanov:
- Add man pages for the various APIs.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-5.2-20190517' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
perf.data:
Alexey Budankov:
- Streaming compression of perf ring buffer into PERF_RECORD_COMPRESSED
user space records, resulting in ~3-5x perf.data file size reduction
on variety of tested workloads what saves storage space on larger
server systems where perf.data size can easily reach several tens or
even hundreds of GiBs, especially when profiling with DWARF-based
stacks and tracing of context switches.
perf record:
Arnaldo Carvalho de Melo
- Improve -user-regs/intr-regs suggestions to overcome errors.
perf annotate:
Jin Yao:
- Remove hist__account_cycles() from callback, speeding up branch processing
(perf record -b).
perf stat:
- Add a 'percore' event qualifier, e.g.: -e cpu/event=0,umask=0x3,percore=1/,
that sums up the event counts for both hardware threads in a core.
We can already do this with --per-core, but it's often useful to do
this together with other metrics that are collected per hardware thread.
I.e. now its possible to do this per-event, and have it mixed with other
events not aggregated by core.
core libraries:
Donald Yandt:
- Check for errors when doing fgets(/proc/version).
Jiri Olsa:
- Speed up report for perf compiled with linbunwind.
tools headers:
Arnaldo Carvalho de Melo
- Update memcpy_64.S, x86's kvm.h and pt_regs.h.
arm64:
Florian Fainelli:
- Map Brahma-B53 CPUID to cortex-a53 events.
- Add Cortex-A57 and Cortex-A72 events.
csky:
Mao Han:
- Add DWARF register mappings for libdw, allowing --call-graph=dwarf to work
on the C-SKY arch.
x86:
Andi Kleen/Kan Liang:
- Add support for recording and printing XMM registers, available, for
instance, on Icelake.
Kan Liang:
- Add uncore_upi (Intel's "Ultra Path Interconnect" events) JSON support.
UPI replaced the Intel QuickPath Interconnect (QPI) in Xeon Skylake-SP.
Intel PT:
Adrian Hunter
. Fix instructions sampling rate.
. Timestamp fixes.
. Improve exported-sql-viewer GUI, allowing, for instance, to copy'n'paste
the trees, useful for e-mailing.
Documentation:
Thomas Richter:
- Add description for 'perf --debug stderr=1', which redirects stderr to stdout.
libtraceevent:
Tzvetomir Stoyanov:
- Add man pages for the various APIs.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Linus Torvalds
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0ef0fd3515 |
* ARM: support for SVE and Pointer Authentication in guests, PMU improvements
* POWER: support for direct access to the POWER9 XIVE interrupt controller, memory and performance optimizations. * x86: support for accessing memory not backed by struct page, fixes and refactoring * Generic: dirty page tracking improvements -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAABAgAGBQJc3qV/AAoJEL/70l94x66Dn3QH/jX1Bn0P/RZAIt4w0SySklSg PqxUKDyBQqB9vN9Qeb9jWXAKPH2CtM3+up/rz7oRnBWp7qA6vXcC/R/QJYAvzdXE nklsR/oYCsflR1KdlVYuDvvPCPP2fLBU5zfN83OsaBQ8fNRkm3gN+N5XQ2SbXbLy Mo9tybS4otY201UAC96e8N0ipwwyCRpDneQpLcl+F5nH3RBt63cVbs04O+70MXn7 eT4I+8K3+Go7LATzT8hglD21D/7uvE31qQb6yr5L33IfhU4GB51RZzBXTNaAdY8n hT1rMrRkAMAFWYZPQDfoMadjWU3i5DIfstKjDxOr9oTfuOEp5Z+GvJwvVnUDg1I= =D0+p -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Paolo Bonzini: "ARM: - support for SVE and Pointer Authentication in guests - PMU improvements POWER: - support for direct access to the POWER9 XIVE interrupt controller - memory and performance optimizations x86: - support for accessing memory not backed by struct page - fixes and refactoring Generic: - dirty page tracking improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (155 commits) kvm: fix compilation on aarch64 Revert "KVM: nVMX: Expose RDPMC-exiting only when guest supports PMU" kvm: x86: Fix L1TF mitigation for shadow MMU KVM: nVMX: Disable intercept for FS/GS base MSRs in vmcs02 when possible KVM: PPC: Book3S: Remove useless checks in 'release' method of KVM device KVM: PPC: Book3S HV: XIVE: Fix spelling mistake "acessing" -> "accessing" KVM: PPC: Book3S HV: Make sure to load LPID for radix VCPUs kvm: nVMX: Set nested_run_pending in vmx_set_nested_state after checks complete tests: kvm: Add tests for KVM_SET_NESTED_STATE KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state tests: kvm: Add tests for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_CPU_ID tests: kvm: Add tests to .gitignore KVM: Introduce KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 KVM: Fix kvm_clear_dirty_log_protect off-by-(minus-)one KVM: Fix the bitmap range to copy during clear dirty KVM: arm64: Fix ptrauth ID register masking logic KVM: x86: use direct accessors for RIP and RSP KVM: VMX: Use accessors for GPRs outside of dedicated caching logic KVM: x86: Omit caching logic for always-available GPRs kvm, x86: Properly check whether a pfn is an MMIO or not ... |
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Arnaldo Carvalho de Melo
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0ceb5499a8 |
tools x86 uapi asm: Sync the pt_regs.h copy with the kernel sources
To get the changes in:
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Arnaldo Carvalho de Melo
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f98f10f352 |
tools arch uapi: Sync the x86 kvm.h copy
To get the changes in:
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Arnaldo Carvalho de Melo
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a021b54001 |
tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
To bring in the change made in this cset:
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Mao Han
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b399ec215b |
csky: Add support for libdw
This patch add support for DWARF register mappings and libdw registers initialization, which is used by perf callchain analyzing when --call-graph=dwarf is given. Here is the elfutils csky backend patch set: https://sourceware.org/ml/elfutils-devel/2019-q2/msg00007.html Signed-off-by: Mao Han <han_mao@c-sky.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Jiri Olsa <jolsa@redhat.com> Cc: linux-arch@vger.kernel.org Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1555860794-10572-1-git-send-email-guoren@kernel.org Signed-off-by: Guo Ren <ren_guo@c-sky.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Linus Torvalds
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b1e76c3d3a |
arch/csky perf unwind libdw patch for v5.2-rc1
Here is another patch for arch/csky v5.2-rc1: - Add support for perf unwind-libdw -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE2KAv+isbWR/viAKHAXH1GYaIxXsFAlzUIKMSHHJlbl9ndW9A Yy1za3kuY29tAAoJEAFx9RmGiMV7wugP/ie3MZ61BYAIdGUQmBtRrUQHft0Jfhky 9kQkvvGky9O9CDqfhbRfcDPkaLJc3bq3jnSGqYKoNrnkFViUTpQKYK2noXQoNnY/ 3hGy4dgMuUkkSEzMBHTYXMBfi2VcR9KHVidcdTVQMABcfZDUxu95eTSE6ZS+5VAc ZtimcQ8QkF0GlAkOKRfHT6u5LvwXMD29oivqCnwiDvi7XJsfhmF59uwBMS+H7L9n bTIuXzTO/HGe4fMTh7SIb+W190jmyvtawG1OYDn50km0sZHsjB2T9n2mLjTU7yjK VoPTKdRce8Bp1bt9m4dGIZfX1Ijmn/UkHR705gjJA8kTG+/tsnx5FGOY8vuwuB60 nlfTqo8mPn1Hlw6ku0Bjnutu7XKZH2KizVEjI/iVT/30xJwKtNRMfvHcaotet+V7 E5heJgvXCqSfP2CXaRSXK73fnS0TR0P7ikjy08Z3BCSYkYTgcu9Giungv942gBrO l4AOfwP9WPfRA/vYDZKK6LNHFcd1qIT5QYbDWKc/NQ+0uHOk4nnUjSqI24T1gJLZ Xjf22DNtSFprrFHtdWDyOaX3wz0ErnEM21iAj9Ebz3/VJKWmnkyHAXoJ37+lkzZH Sr5tj0ALVtvcDG8ogCiyJ31IqfcUySRtstEWTFjOFcodPoUD0Mp8GBGkWEr0Tw/m /DXRA8szITPV =NPHB -----END PGP SIGNATURE----- Merge tag 'csky-for-linus-5.2-perf-unwind-libdw' of git://github.com/c-sky/csky-linux Pull arch/csky perf update from Guo Ren: "Add support for perf unwind-libdw" * tag 'csky-for-linus-5.2-perf-unwind-libdw' of git://github.com/c-sky/csky-linux: csky: Add support for perf unwind-libdw |
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Mao Han
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3213486f2e |
csky: Add support for perf unwind-libdw
This patch add support for DWARF register mappings and libdw registers initialization, which is used by perf callchain analyzing, eg: perf record --call-graph=dwarf <COMMAND> Here is elfutils csky backend patch set: https://sourceware.org/ml/elfutils-devel/2019-q2/msg00007.html Signed-off-by: Mao Han <han_mao@c-sky.com> Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Arnd Bergmann <arnd@arnd.de> |
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Linus Torvalds
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80f232121b |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
"Highlights:
1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.
2) Add fib_sync_mem to control the amount of dirty memory we allow to
queue up between synchronize RCU calls, from David Ahern.
3) Make flow classifier more lockless, from Vlad Buslov.
4) Add PHY downshift support to aquantia driver, from Heiner
Kallweit.
5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
contention on SLAB spinlocks in heavy RPC workloads.
6) Partial GSO offload support in XFRM, from Boris Pismenny.
7) Add fast link down support to ethtool, from Heiner Kallweit.
8) Use siphash for IP ID generator, from Eric Dumazet.
9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
entries, from David Ahern.
10) Move skb->xmit_more into a per-cpu variable, from Florian
Westphal.
11) Improve eBPF verifier speed and increase maximum program size,
from Alexei Starovoitov.
12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
spinlocks. From Neil Brown.
13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.
14) Improve link partner cap detection in generic PHY code, from
Heiner Kallweit.
15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
Maguire.
16) Remove SKB list implementation assumptions in SCTP, your's truly.
17) Various cleanups, optimizations, and simplifications in r8169
driver. From Heiner Kallweit.
18) Add memory accounting on TX and RX path of SCTP, from Xin Long.
19) Switch PHY drivers over to use dynamic featue detection, from
Heiner Kallweit.
20) Support flow steering without masking in dpaa2-eth, from Ioana
Ciocoi.
21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
Pirko.
22) Increase the strict parsing of current and future netlink
attributes, also export such policies to userspace. From Johannes
Berg.
23) Allow DSA tag drivers to be modular, from Andrew Lunn.
24) Remove legacy DSA probing support, also from Andrew Lunn.
25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
Haabendal.
26) Add a generic tracepoint for TX queue timeouts to ease debugging,
from Cong Wang.
27) More indirect call optimizations, from Paolo Abeni"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
cxgb4: Fix error path in cxgb4_init_module
net: phy: improve pause mode reporting in phy_print_status
dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
net: macb: Change interrupt and napi enable order in open
net: ll_temac: Improve error message on error IRQ
net/sched: remove block pointer from common offload structure
net: ethernet: support of_get_mac_address new ERR_PTR error
net: usb: smsc: fix warning reported by kbuild test robot
staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
net: dsa: support of_get_mac_address new ERR_PTR error
net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
vrf: sit mtu should not be updated when vrf netdev is the link
net: dsa: Fix error cleanup path in dsa_init_module
l2tp: Fix possible NULL pointer dereference
taprio: add null check on sched_nest to avoid potential null pointer dereference
net: mvpp2: cls: fix less than zero check on a u32 variable
net_sched: sch_fq: handle non connected flows
net_sched: sch_fq: do not assume EDT packets are ordered
net: hns3: use devm_kcalloc when allocating desc_cb
net: hns3: some cleanup for struct hns3_enet_ring
...
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Arnaldo Carvalho de Melo
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18f90d372c |
tools arch uapi: Copy missing unistd.h headers for arc, hexagon and riscv
Since those were introduced in: |
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Arnaldo Carvalho de Melo
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24e45b49ee |
tools uapi x86: Sync vmx.h with the kernel
To pick up the changes from:
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Christian Borntraeger
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13209ad039 |
KVM: s390: add MSA9 to cpumodel
This enables stfle.155 and adds the subfunctions for KDSA. Bit 155 is added to the list of facilities that will be enabled when there is no cpu model involved as MSA9 requires no additional handling from userspace, e.g. for migration. Please note that a cpu model enabled user space can and will have the final decision on the facility bits for a guests. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Janosch Frank <frankja@linux.ibm.com> Reviewed-by: Collin Walling <walling@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> |
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David S. Miller
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bb23581b9b |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2019-04-12
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Improve BPF verifier scalability for large programs through two
optimizations: i) remove verifier states that are not useful in pruning,
ii) stop walking parentage chain once first LIVE_READ is seen. Combined
gives approx 20x speedup. Increase limits for accepting large programs
under root, and add various stress tests, from Alexei.
2) Implement global data support in BPF. This enables static global variables
for .data, .rodata and .bss sections to be properly handled which allows
for more natural program development. This also opens up the possibility
to optimize program workflow by compiling ELFs only once and later only
rewriting section data before reload, from Daniel and with test cases and
libbpf refactoring from Joe.
3) Add config option to generate BTF type info for vmlinux as part of the
kernel build process. DWARF debug info is converted via pahole to BTF.
Latter relies on libbpf and makes use of BTF deduplication algorithm which
results in 100x savings compared to DWARF data. Resulting .BTF section is
typically about 2MB in size, from Andrii.
4) Add BPF verifier support for stack access with variable offset from
helpers and add various test cases along with it, from Andrey.
5) Extend bpf_skb_adjust_room() growth BPF helper to mark inner MAC header
so that L2 encapsulation can be used for tc tunnels, from Alan.
6) Add support for input __sk_buff context in BPF_PROG_TEST_RUN so that
users can define a subset of allowed __sk_buff fields that get fed into
the test program, from Stanislav.
7) Add bpf fs multi-dimensional array tests for BTF test suite and fix up
various UBSAN warnings in bpftool, from Yonghong.
8) Generate a pkg-config file for libbpf, from Luca.
9) Dump program's BTF id in bpftool, from Prashant.
10) libbpf fix to use smaller BPF log buffer size for AF_XDP's XDP
program, from Magnus.
11) kallsyms related fixes for the case when symbols are not present in
BPF selftests and samples, from Daniel
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann
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6b7a21140f |
tools: add smp_* barrier variants to include infrastructure
Add the definition for smp_rmb(), smp_wmb(), and smp_mb() to the
tools include infrastructure: this patch adds the implementation
for x86-64 and arm64, and have it fall back as currently is for
other archs which do not have it implemented at this point. The
x86-64 one uses lock + add combination for smp_mb() with address
below red zone.
This is on top of
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Arnaldo Carvalho de Melo
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707c373c84 |
tools headers uapi: Sync powerpc's asm/kvm.h copy with the kernel sources
To pick up the changes in:
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Arnaldo Carvalho de Melo
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949af89af0 |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To get the changes from:
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Arnaldo Carvalho de Melo
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be709d4832 |
tools headers uapi: Sync asm-generic/mman-common.h and linux/mman.h
To deal with the move of some defines from asm-generic/mmap-common.h to
linux/mman.h done in:
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Arnaldo Carvalho de Melo
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1a787fc5ba |
tools headers uapi: Sync copy of asm-generic/unistd.h with the kernel sources
To get the changes in:
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Linus Torvalds
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c5b709804e |
powerpc fixes for 5.0 #3
A couple of weeks of fixes. There's one fix for an oops on Power9 machines with Open CAPI adapters. And a fix for probable memory corruption in some of the new NPU code, caught by smatch though and not seen in the wild. Plus a few other minor fixes. There's one non-fix which is the perf_regs change. That was sent during the merge window but I accidentally only merged the first of two patches in the series. It's been in linux-next so hopefully doesn't conflict with anything in acme's tree. Thanks to: Alexey Kardashevskiy, Andrew Donnellan, Breno Leitao, Christian Lamparter, Christophe Leroy, Dan Carpenter, Frederic Barrat, Greg Kurz, Jason A. Donenfeld, Madhavan Srinivasan. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJcQcioAAoJEFHr6jzI4aWAMxoP/j2w/p1z5As/rMQRH9L0wTDV Z/69GkRnj+rkRSNBWJ2T/0KY6c1mXPH4R2nvmFNfdEYzXWLh+Ymn65RQ3ifQnb56 C5PPjVOPruiCjKAWiNYGr8S+Ev8IehZU0zXXToCwV1MKCMU0QcO6Q1HtEVI56WhV xtQfBJz1tkPJ4Ep9HZ7go7p6SKaFmmWh/Z8pg02s5DOlGN4bKFQ3Qc+XnNPw5vc8 LgjrwrOIQ7D+lXa6saQWbV16ktLzzpsxDfxXHXNTz0bOjyuQAXfdnfGJnEoDowYa Pqio5fm1rcjXcHtqwuSsRWeYi+dzO+AYj0WUrqevcPSAMM0RwmqREcfBGLvAlPWA fYfuMMB5zhf9HkDHkx4+8pvZ6io+VDP5k5YF7ZnQfz8tVYAboTmRvIiGAM8ks8hC 6DnNdV2WojBeoK2gWsgX+WAIc4Ynk+u0554kf884rtiK7TSCRq63JNTeTmIr8v/u 7g5qwlC99RDYsl/ZkY2eQviiQo6dWXTwRCZ9lbk/iLivc90ulN7P+8r3oaQNV6ja zYpiLz95fpL7g5G0caW3AZTzfnJxOGioaCGOQc/hZHzhdc7p9zWH+7sd9mPMGayu iTMn66h2v8cf6o6u2peAf15NQvR0jHe8mIccUpRJTXWwnlVMI2WAcXqlpE+9fj5V gBZ0MuitQtX0qLEtFpUa =hlZ7 -----END PGP SIGNATURE----- Merge tag 'powerpc-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "A couple of weeks of fixes. There's one fix for an oops on Power9 machines with Open CAPI adapters. And a fix for probable memory corruption in some of the new NPU code, caught by smatch though and not seen in the wild. Plus a few other minor fixes. There's one non-fix which is the perf_regs change. That was sent during the merge window but I accidentally only merged the first of two patches in the series. It's been in linux-next so hopefully doesn't conflict with anything in acme's tree. Thanks to: Alexey Kardashevskiy, Andrew Donnellan, Breno Leitao, Christian Lamparter, Christophe Leroy, Dan Carpenter, Frederic Barrat, Greg Kurz, Jason A. Donenfeld, Madhavan Srinivasan" * tag 'powerpc-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/syscalls: Fix syscall tracing powerpc/pseries: Fix build break due to pnv_npu2_init() powerpc/4xx/ocm: Fix fix for phys_addr_t printf warnings powerpc/powernv/npu: Fix oops in pnv_try_setup_npu_table_group() powerpc/tm: Limit TM code inside PPC_TRANSACTIONAL_MEM powerpc/8xx: fix setting of pagetable for Abatron BDI debug tool. powerpc/powernv/npu: Allocate enough memory in pnv_try_setup_npu_table_group() powerpc/perf: Update perf_regs structure to include MMCRA |
|
|
Linus Torvalds
|
40a31da414 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling updates from Ingo Molnar: "Tooling changes only: fixes and a few stray improvements. Most of the diffstat is dominated by a PowerPC related fix of system call trace output beautification that allows us to (again) use the UAPI header version and sync up with the kernel's version of PowerPC system call names in the arch/powerpc/kernel/syscalls/syscall.tbl header" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits) tools headers powerpc: Remove unistd.h perf powerpc: Rework syscall table generation perf symbols: Add 'arch_cpu_idle' to the list of kernel idle symbols tools include uapi: Sync linux/if_link.h copy with the kernel sources tools include uapi: Sync linux/vhost.h with the kernel sources tools include uapi: Sync linux/fs.h copy with the kernel sources perf beauty: Switch from using uapi/linux/fs.h to uapi/linux/mount.h tools include uapi: Grab a copy of linux/mount.h perf top: Lift restriction on using callchains without "sym" in --sort tools lib traceevent: Remove tep_data_event_from_type() API tools lib traceevent: Rename tep_is_file_bigendian() to tep_file_bigendian() tools lib traceevent: Changed return logic of tep_register_event_handler() API tools lib traceevent: Changed return logic of trace_seq_printf() and trace_seq_vprintf() APIs tools lib traceevent: Rename struct cmdline to struct tep_cmdline tools lib traceevent: Initialize host_bigendian at tep_handle allocation tools lib traceevent: Introduce new libtracevent API: tep_override_comm() perf tests: Add a test for the ARM 32-bit [vectors] page perf tools: Make find_vdso_map() more modular perf trace: Fix alignment for [continued] lines perf trace: Fix ')' placement in "interrupted" syscall lines ... |
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Ravi Bangoria
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15c03092a9 |
tools headers powerpc: Remove unistd.h
We use syscall.tbl to generate system call table on powerpc. The unistd.h copy is no longer required now. Remove it. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Namhyung Kim <namhyung@kernel.org> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/20190110094936.3132-2-ravi.bangoria@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Ingo Molnar
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64598e8b6f |
perf/core improvements and fixes:
perf annotate:
Ivan Krylov:
- Pass filename to objdump via execl, fixing usage with filenames
with special characters.
perf report:
Jin Yao:
Fix wrong iteration count in --branch-history
perf stat:
Jin Yao:
- Fix endless wait for child process
perf test:
Arnaldo Carvalho de Melo:
- Use a fallback to get the pathname in vfs_getname in
tools build:
Jiri Olsa:
- Allow overriding CFLAGS assignments.
Misc:
Arnaldo Carvalho de Melo:
- Syncronize UAPI headers
Mattias Jacobsson:
- Remove redundant va_end() in strbuf_addv()
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-4.21-20190104' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
perf annotate:
Ivan Krylov:
- Pass filename to objdump via execl, fixing usage with filenames
with special characters.
perf report:
Jin Yao:
Fix wrong iteration count in --branch-history
perf stat:
Jin Yao:
- Fix endless wait for child process
perf test:
Arnaldo Carvalho de Melo:
- Use a fallback to get the pathname in vfs_getname in
tools build:
Jiri Olsa:
- Allow overriding CFLAGS assignments.
Misc:
Arnaldo Carvalho de Melo:
- Syncronize UAPI headers
Mattias Jacobsson:
- Remove redundant va_end() in strbuf_addv()
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Madhavan Srinivasan
|
6529870cb0 |
powerpc/perf: Update perf_regs structure to include MMCRA
On each sample, Monitor Mode Control Register A (MMCRA) content is
saved in pt_regs. MMCRA does not have a entry as-is in the pt_regs but
instead, MMCRA content is saved in the "dsisr" register of pt_regs.
Patch adds another entry to the perf_regs structure to include the
"MMCRA" printing which internally maps to the "dsisr" of pt_regs.
It also check for the MMCRA availability in the platform and present
value accordingly
mpe: This was the 2nd patch in a series with commit
|
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Aurelien Jarno
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d0df00e30e
|
tools uapi: fix RISC-V 64-bit support
The BPF library is not built on 64-bit RISC-V, as the BPF feature is not detected. Looking more in details, feature/test-bpf.c fails to build with the following error: | In file included from /tmp/linux-4.19.12/tools/include/uapi/asm/bitsperlong.h:17, | from /tmp/linux-4.19.12/tools/include/uapi/asm-generic/unistd.h:2, | from /usr/include/riscv64-linux-gnu/asm/unistd.h:1, | from test-bpf.c:2: | /tmp/linux-4.19.12/tools/include/asm-generic/bitsperlong.h:14:2: error: #error Inconsistent word size. Check asm/bitsperlong.h | #error Inconsistent word size. Check asm/bitsperlong.h | ^~~~~ The UAPI from the tools directory is missing RISC-V support, therefore bitsperlong.h from asm-generic is used, defaulting to 32 bits. Fix that by adding tools/arch/riscv/include/uapi/asm/bitsperlong.h as a copy of arch/riscv/include/uapi/asm/bitsperlong.h and by updating tools/include/uapi/asm/bitsperlong.h. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> |
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Masahiro Yamada
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e9666d10a5 |
jump_label: move 'asm goto' support test to Kconfig
Currently, CONFIG_JUMP_LABEL just means "I _want_ to use jump label". The jump label is controlled by HAVE_JUMP_LABEL, which is defined like this: #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL) # define HAVE_JUMP_LABEL #endif We can improve this by testing 'asm goto' support in Kconfig, then make JUMP_LABEL depend on CC_HAS_ASM_GOTO. Ugly #ifdef HAVE_JUMP_LABEL will go away, and CONFIG_JUMP_LABEL will match to the real kernel capability. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Tested-by: Sedat Dilek <sedat.dilek@gmail.com> |
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Arnaldo Carvalho de Melo
|
86c22ab722 |
tools headers x86: Sync asm/cpufeatures.h copy with the kernel sources
To get the changes from: |
|
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Arnaldo Carvalho de Melo
|
94f45df8aa |
tools headers x86: Sync disabled-features.h
To silence the following tools/perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h
Picking up the changes in
|
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Linus Torvalds
|
8d6973327e |
powerpc updates for 4.21
Notable changes:
- Mitigations for Spectre v2 on some Freescale (NXP) CPUs.
- A large series adding support for pass-through of Nvidia V100 GPUs to guests
on Power9.
- Another large series to enable hardware assistance for TLB table walk on
MPC8xx CPUs.
- Some preparatory changes to our DMA code, to make way for further cleanups
from Christoph.
- Several fixes for our Transactional Memory handling discovered by fuzzing the
signal return path.
- Support for generating our system call table(s) from a text file like other
architectures.
- A fix to our page fault handler so that instead of generating a WARN_ON_ONCE,
user accesses of kernel addresses instead print a ratelimited and
appropriately scary warning.
- A cosmetic change to make our unhandled page fault messages more similar to
other arches and also more compact and informative.
- Freescale updates from Scott:
"Highlights include elimination of legacy clock bindings use from dts
files, an 83xx watchdog handler, fixes to old dts interrupt errors, and
some minor cleanup."
And many clean-ups, reworks and minor fixes etc.
Thanks to:
Alexandre Belloni, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V,
Arnd Bergmann, Benjamin Herrenschmidt, Breno Leitao, Christian Lamparter,
Christophe Leroy, Christoph Hellwig, Daniel Axtens, Darren Stevens, David
Gibson, Diana Craciun, Dmitry V. Levin, Firoz Khan, Geert Uytterhoeven, Greg
Kurz, Gustavo Romero, Hari Bathini, Joel Stanley, Kees Cook, Madhavan
Srinivasan, Mahesh Salgaonkar, Markus Elfring, Mathieu Malaterre, Michal
Suchánek, Naveen N. Rao, Nick Desaulniers, Oliver O'Halloran, Paul Mackerras,
Ram Pai, Ravi Bangoria, Rob Herring, Russell Currey, Sabyasachi Gupta, Sam
Bobroff, Satheesh Rajendran, Scott Wood, Segher Boessenkool, Stephen Rothwell,
Tang Yuantian, Thiago Jung Bauermann, Yangtao Li, Yuantian Tang, Yue Haibing.
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Merge tag 'powerpc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Notable changes:
- Mitigations for Spectre v2 on some Freescale (NXP) CPUs.
- A large series adding support for pass-through of Nvidia V100 GPUs
to guests on Power9.
- Another large series to enable hardware assistance for TLB table
walk on MPC8xx CPUs.
- Some preparatory changes to our DMA code, to make way for further
cleanups from Christoph.
- Several fixes for our Transactional Memory handling discovered by
fuzzing the signal return path.
- Support for generating our system call table(s) from a text file
like other architectures.
- A fix to our page fault handler so that instead of generating a
WARN_ON_ONCE, user accesses of kernel addresses instead print a
ratelimited and appropriately scary warning.
- A cosmetic change to make our unhandled page fault messages more
similar to other arches and also more compact and informative.
- Freescale updates from Scott:
"Highlights include elimination of legacy clock bindings use from
dts files, an 83xx watchdog handler, fixes to old dts interrupt
errors, and some minor cleanup."
And many clean-ups, reworks and minor fixes etc.
Thanks to: Alexandre Belloni, Alexey Kardashevskiy, Andrew Donnellan,
Aneesh Kumar K.V, Arnd Bergmann, Benjamin Herrenschmidt, Breno Leitao,
Christian Lamparter, Christophe Leroy, Christoph Hellwig, Daniel
Axtens, Darren Stevens, David Gibson, Diana Craciun, Dmitry V. Levin,
Firoz Khan, Geert Uytterhoeven, Greg Kurz, Gustavo Romero, Hari
Bathini, Joel Stanley, Kees Cook, Madhavan Srinivasan, Mahesh
Salgaonkar, Markus Elfring, Mathieu Malaterre, Michal Suchánek, Naveen
N. Rao, Nick Desaulniers, Oliver O'Halloran, Paul Mackerras, Ram Pai,
Ravi Bangoria, Rob Herring, Russell Currey, Sabyasachi Gupta, Sam
Bobroff, Satheesh Rajendran, Scott Wood, Segher Boessenkool, Stephen
Rothwell, Tang Yuantian, Thiago Jung Bauermann, Yangtao Li, Yuantian
Tang, Yue Haibing"
* tag 'powerpc-4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (201 commits)
Revert "powerpc/fsl_pci: simplify fsl_pci_dma_set_mask"
powerpc/zImage: Also check for stdout-path
powerpc: Fix HMIs on big-endian with CONFIG_RELOCATABLE=y
macintosh: Use of_node_name_{eq, prefix} for node name comparisons
ide: Use of_node_name_eq for node name comparisons
powerpc: Use of_node_name_eq for node name comparisons
powerpc/pseries/pmem: Convert to %pOFn instead of device_node.name
powerpc/mm: Remove very old comment in hash-4k.h
powerpc/pseries: Fix node leak in update_lmb_associativity_index()
powerpc/configs/85xx: Enable CONFIG_DEBUG_KERNEL
powerpc/dts/fsl: Fix dtc-flagged interrupt errors
clk: qoriq: add more compatibles strings
powerpc/fsl: Use new clockgen binding
powerpc/83xx: handle machine check caused by watchdog timer
powerpc/fsl-rio: fix spelling mistake "reserverd" -> "reserved"
powerpc/fsl_pci: simplify fsl_pci_dma_set_mask
arch/powerpc/fsl_rmu: Use dma_zalloc_coherent
vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver
vfio_pci: Allow regions to add own capabilities
vfio_pci: Allow mapping extra regions
...
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Madhavan Srinivasan
|
333804dc3b |
powerpc/perf: Update perf_regs structure to include SIER
On each sample, Sample Instruction Event Register (SIER) content is saved in pt_regs. SIER does not have a entry as-is in the pt_regs but instead, SIER content is saved in the "dar" register of pt_regs. Patch adds another entry to the perf_regs structure to include the "SIER" printing which internally maps to the "dar" of pt_regs. It also check for the SIER availability in the platform and present value accordingly Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
|
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Arnaldo Carvalho de Melo
|
c22e2683c0 |
tools include arch: Grab a copy of x86's prctl.h
We need it to generate the tables for the 'code' arch_prctl's syscall argument. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-vu890pi18fpd4eyz61cazckj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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Arnaldo Carvalho de Melo
|
65e259d5c4 |
tools arch x86: Update tools's copy of cpufeatures.h
To get the changes in the following csets: |
|
|
Will Deacon
|
51f5fd2e46 |
tools headers barrier: Fix arm64 tools build failure wrt smp_load_{acquire,release}
Cheers for reporting this. I managed to reproduce the build failure with
gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1).
The code in question is the arm64 versions of smp_load_acquire() and
smp_store_release(). Unlike other architectures, these are not built
around READ_ONCE() and WRITE_ONCE() since we have instructions we can
use instead of fences. Bringing our macros up-to-date with those (i.e.
tweaking the union initialisation and using the special "uXX_alias_t"
types) appears to fix the issue for me.
Committer notes:
Testing it in the systems previously failing:
# time dm android-ndk:r12b-arm \
android-ndk:r15c-arm \
debian:experimental-x-arm64 \
ubuntu:14.04.4-x-linaro-arm64 \
ubuntu:16.04-x-arm \
ubuntu:16.04-x-arm64 \
ubuntu:18.04-x-arm \
ubuntu:18.04-x-arm64
1 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
2 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
3 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 8.2.0-7) 8.2.0
4 ubuntu:14.04.4-x-linaro-arm64 : Ok aarch64-linux-gnu-gcc (Linaro GCC 5.5-2017.10) 5.5.0
5 ubuntu:16.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
6 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
7 ubuntu:18.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0
8 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20181031174408.GA27871@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
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Arnaldo Carvalho de Melo
|
827758129a |
tools headers: Sync the various kvm.h header copies
For powerpc, s390, x86 and the main uapi linux/kvm.h header, none of them entail changes in tooling. Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-avn7iy8f4tcm2y40sbsdk31m@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
|
|
Arnaldo Carvalho de Melo
|
8dd4c0f68c |
tools arch uapi: Update asm-generic/unistd.h and arm64 unistd.h copies
To get the changes in:
|
|
|
Linus Torvalds
|
0d1e8b8d2b |
KVM updates for v4.20
ARM:
- Improved guest IPA space support (32 to 52 bits)
- RAS event delivery for 32bit
- PMU fixes
- Guest entry hardening
- Various cleanups
- Port of dirty_log_test selftest
PPC:
- Nested HV KVM support for radix guests on POWER9. The performance is
much better than with PR KVM. Migration and arbitrary level of
nesting is supported.
- Disable nested HV-KVM on early POWER9 chips that need a particular hardware
bug workaround
- One VM per core mode to prevent potential data leaks
- PCI pass-through optimization
- merge ppc-kvm topic branch and kvm-ppc-fixes to get a better base
s390:
- Initial version of AP crypto virtualization via vfio-mdev
- Improvement for vfio-ap
- Set the host program identifier
- Optimize page table locking
x86:
- Enable nested virtualization by default
- Implement Hyper-V IPI hypercalls
- Improve #PF and #DB handling
- Allow guests to use Enlightened VMCS
- Add migration selftests for VMCS and Enlightened VMCS
- Allow coalesced PIO accesses
- Add an option to perform nested VMCS host state consistency check
through hardware
- Automatic tuning of lapic_timer_advance_ns
- Many fixes, minor improvements, and cleanups
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Merge tag 'kvm-4.20-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Radim Krčmář:
"ARM:
- Improved guest IPA space support (32 to 52 bits)
- RAS event delivery for 32bit
- PMU fixes
- Guest entry hardening
- Various cleanups
- Port of dirty_log_test selftest
PPC:
- Nested HV KVM support for radix guests on POWER9. The performance
is much better than with PR KVM. Migration and arbitrary level of
nesting is supported.
- Disable nested HV-KVM on early POWER9 chips that need a particular
hardware bug workaround
- One VM per core mode to prevent potential data leaks
- PCI pass-through optimization
- merge ppc-kvm topic branch and kvm-ppc-fixes to get a better base
s390:
- Initial version of AP crypto virtualization via vfio-mdev
- Improvement for vfio-ap
- Set the host program identifier
- Optimize page table locking
x86:
- Enable nested virtualization by default
- Implement Hyper-V IPI hypercalls
- Improve #PF and #DB handling
- Allow guests to use Enlightened VMCS
- Add migration selftests for VMCS and Enlightened VMCS
- Allow coalesced PIO accesses
- Add an option to perform nested VMCS host state consistency check
through hardware
- Automatic tuning of lapic_timer_advance_ns
- Many fixes, minor improvements, and cleanups"
* tag 'kvm-4.20-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits)
KVM/nVMX: Do not validate that posted_intr_desc_addr is page aligned
Revert "kvm: x86: optimize dr6 restore"
KVM: PPC: Optimize clearing TCEs for sparse tables
x86/kvm/nVMX: tweak shadow fields
selftests/kvm: add missing executables to .gitignore
KVM: arm64: Safety check PSTATE when entering guest and handle IL
KVM: PPC: Book3S HV: Don't use streamlined entry path on early POWER9 chips
arm/arm64: KVM: Enable 32 bits kvm vcpu events support
arm/arm64: KVM: Rename function kvm_arch_dev_ioctl_check_extension()
KVM: arm64: Fix caching of host MDCR_EL2 value
KVM: VMX: enable nested virtualization by default
KVM/x86: Use 32bit xor to clear registers in svm.c
kvm: x86: Introduce KVM_CAP_EXCEPTION_PAYLOAD
kvm: vmx: Defer setting of DR6 until #DB delivery
kvm: x86: Defer setting of CR2 until #PF delivery
kvm: x86: Add payload operands to kvm_multiple_exception
kvm: x86: Add exception payload fields to kvm_vcpu_events
kvm: x86: Add has_payload and payload to kvm_queued_exception
KVM: Documentation: Fix omission in struct kvm_vcpu_events
KVM: selftests: add Enlightened VMCS test
...
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David S. Miller
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a19c59cc10 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2018-10-21
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Implement two new kind of BPF maps, that is, queue and stack
map along with new peek, push and pop operations, from Mauricio.
2) Add support for MSG_PEEK flag when redirecting into an ingress
psock sk_msg queue, and add a new helper bpf_msg_push_data() for
insert data into the message, from John.
3) Allow for BPF programs of type BPF_PROG_TYPE_CGROUP_SKB to use
direct packet access for __skb_buff, from Song.
4) Use more lightweight barriers for walking perf ring buffer for
libbpf and perf tool as well. Also, various fixes and improvements
from verifier side, from Daniel.
5) Add per-symbol visibility for DSO in libbpf and hide by default
global symbols such as netlink related functions, from Andrey.
6) Two improvements to nfp's BPF offload to check vNIC capabilities
in case prog is shared with multiple vNICs and to protect against
mis-initializing atomic counters, from Jakub.
7) Fix for bpftool to use 4 context mode for the nfp disassembler,
also from Jakub.
8) Fix a return value comparison in test_libbpf.sh and add several
bpftool improvements in bash completion, documentation of bpf fs
restrictions and batch mode summary print, from Quentin.
9) Fix a file resource leak in BPF selftest's load_kallsyms()
helper, from Peng.
10) Fix an unused variable warning in map_lookup_and_delete_elem(),
from Alexei.
11) Fix bpf_skb_adjust_room() signature in BPF UAPI helper doc,
from Nicolas.
12) Add missing executables to .gitignore in BPF selftests, from Anders.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann
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09d62154f6 |
tools, perf: add and use optimized ring_buffer_{read_head, write_tail} helpers
Currently, on x86-64, perf uses LFENCE and MFENCE (rmb() and mb(),
respectively) when processing events from the perf ring buffer which
is unnecessarily expensive as we can do more lightweight in particular
given this is critical fast-path in perf.
According to Peter rmb()/mb() were added back then via
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Jim Mattson
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59073aaf6d |
kvm: x86: Add exception payload fields to kvm_vcpu_events
The per-VM capability KVM_CAP_EXCEPTION_PAYLOAD (to be introduced in a later commit) adds the following fields to struct kvm_vcpu_events: exception_has_payload, exception_payload, and exception.pending. With this capability set, all of the details of vcpu->arch.exception, including the payload for a pending exception, are reported to userspace in response to KVM_GET_VCPU_EVENTS. With this capability clear, the original ABI is preserved, and the exception.injected field is set for either pending or injected exceptions. When userspace calls KVM_SET_VCPU_EVENTS with KVM_CAP_EXCEPTION_PAYLOAD clear, exception.injected is no longer translated to exception.pending. KVM_SET_VCPU_EVENTS can now only establish a pending exception when KVM_CAP_EXCEPTION_PAYLOAD is set. Reported-by: Jim Mattson <jmattson@google.com> Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Jim Mattson <jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Arnaldo Carvalho de Melo
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4312f2ab13 |
tools arch uapi: Sync the x86 kvm.h copy
To get the changes in:
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Arnaldo Carvalho de Melo
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0210c156d7 |
tools headers uapi: Update tools's copies of kvm headers
To get the changes in: |
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Linus Torvalds
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d207ea8e74 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Thomas Gleixner: "Kernel: - Improve kallsyms coverage - Add x86 entry trampolines to kcore - Fix ARM SPE handling - Correct PPC event post processing Tools: - Make the build system more robust - Small fixes and enhancements all over the place - Update kernel ABI header copies - Preparatory work for converting libtraceevnt to a shared library - License cleanups" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (100 commits) tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' tools arch x86: Update tools's copy of cpufeatures.h perf python: Fix pyrf_evlist__read_on_cpu() interface perf mmap: Store real cpu number in 'struct perf_mmap' perf tools: Remove ext from struct kmod_path perf tools: Add gzip_is_compressed function perf tools: Add lzma_is_compressed function perf tools: Add is_compressed callback to compressions array perf tools: Move the temp file processing into decompress_kmodule perf tools: Use compression id in decompress_kmodule() perf tools: Store compression id into struct dso perf tools: Add compression id into 'struct kmod_path' perf tools: Make is_supported_compression() static perf tools: Make decompress_to_file() function static perf tools: Get rid of dso__needs_decompress() call in __open_dso() perf tools: Get rid of dso__needs_decompress() call in symbol__disassemble() perf tools: Get rid of dso__needs_decompress() call in read_object_code() tools lib traceevent: Change to SPDX License format perf llvm: Allow passing options to llc in addition to clang perf parser: Improve error message for PMU address filters ... |
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Arnaldo Carvalho de Melo
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78303650e4 |
tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
To bring in the change made in this cset:
Fixes:
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Arnaldo Carvalho de Melo
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252df17711 |
tools arch x86: Update tools's copy of cpufeatures.h
To get the changes in the following csets: |
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Linus Torvalds
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958f338e96 |
Merge branch 'l1tf-final' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Merge L1 Terminal Fault fixes from Thomas Gleixner:
"L1TF, aka L1 Terminal Fault, is yet another speculative hardware
engineering trainwreck. It's a hardware vulnerability which allows
unprivileged speculative access to data which is available in the
Level 1 Data Cache when the page table entry controlling the virtual
address, which is used for the access, has the Present bit cleared or
other reserved bits set.
If an instruction accesses a virtual address for which the relevant
page table entry (PTE) has the Present bit cleared or other reserved
bits set, then speculative execution ignores the invalid PTE and loads
the referenced data if it is present in the Level 1 Data Cache, as if
the page referenced by the address bits in the PTE was still present
and accessible.
While this is a purely speculative mechanism and the instruction will
raise a page fault when it is retired eventually, the pure act of
loading the data and making it available to other speculative
instructions opens up the opportunity for side channel attacks to
unprivileged malicious code, similar to the Meltdown attack.
While Meltdown breaks the user space to kernel space protection, L1TF
allows to attack any physical memory address in the system and the
attack works across all protection domains. It allows an attack of SGX
and also works from inside virtual machines because the speculation
bypasses the extended page table (EPT) protection mechanism.
The assoicated CVEs are: CVE-2018-3615, CVE-2018-3620, CVE-2018-3646
The mitigations provided by this pull request include:
- Host side protection by inverting the upper address bits of a non
present page table entry so the entry points to uncacheable memory.
- Hypervisor protection by flushing L1 Data Cache on VMENTER.
- SMT (HyperThreading) control knobs, which allow to 'turn off' SMT
by offlining the sibling CPU threads. The knobs are available on
the kernel command line and at runtime via sysfs
- Control knobs for the hypervisor mitigation, related to L1D flush
and SMT control. The knobs are available on the kernel command line
and at runtime via sysfs
- Extensive documentation about L1TF including various degrees of
mitigations.
Thanks to all people who have contributed to this in various ways -
patches, review, testing, backporting - and the fruitful, sometimes
heated, but at the end constructive discussions.
There is work in progress to provide other forms of mitigations, which
might be less horrible performance wise for a particular kind of
workloads, but this is not yet ready for consumption due to their
complexity and limitations"
* 'l1tf-final' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (75 commits)
x86/microcode: Allow late microcode loading with SMT disabled
tools headers: Synchronise x86 cpufeatures.h for L1TF additions
x86/mm/kmmio: Make the tracer robust against L1TF
x86/mm/pat: Make set_memory_np() L1TF safe
x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert
x86/speculation/l1tf: Invert all not present mappings
cpu/hotplug: Fix SMT supported evaluation
KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry
x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry
x86/speculation: Simplify sysfs report of VMX L1TF vulnerability
Documentation/l1tf: Remove Yonah processors from not vulnerable list
x86/KVM/VMX: Don't set l1tf_flush_l1d from vmx_handle_external_intr()
x86/irq: Let interrupt handlers set kvm_cpu_l1tf_flush_l1d
x86: Don't include linux/irq.h from asm/hardirq.h
x86/KVM/VMX: Introduce per-host-cpu analogue of l1tf_flush_l1d
x86/irq: Demote irq_cpustat_t::__softirq_pending to u16
x86/KVM/VMX: Move the l1tf_flush_l1d test to vmx_l1d_flush()
x86/KVM/VMX: Replace 'vmx_l1d_flush_always' with 'vmx_l1d_flush_cond'
x86/KVM/VMX: Don't set l1tf_flush_l1d to true from vmx_l1d_flush()
cpu/hotplug: detect SMT disabled by BIOS
...
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Linus Torvalds
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2280a5360e |
Merge branch 'parisc-4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller: - parisc now uses the generic dma_noncoherent_ops implementation (Christoph Hellwig) - further memory barrier and spinlock improvements (John David Anglin) - prepare removal of current_text_addr() functions (Nick Desaulniers) - improve kernel stack unwinding on parisc (me) - drop ENOTSUP which was defined on parisc only (me) * 'parisc-4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix and improve kernel stack unwinding parisc: Remove unnecessary barriers from spinlock.h parisc: Remove ordered stores from syscall.S parisc: prefer _THIS_IP_ and _RET_IP_ statement expressions parisc: Add HAVE_REGS_AND_STACK_ACCESS_API feature parisc: Drop architecture-specific ENOTSUP define parisc: use generic dma_noncoherent_ops parisc: always use flush_kernel_dcache_range for DMA cache maintainance parisc: merge pcx_dma_ops and pcxl_dma_ops |
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Helge Deller
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93cb8e20d5 |
parisc: Drop architecture-specific ENOTSUP define
parisc is the only Linux architecture which has defined a value for ENOTSUP. All other architectures #define ENOTSUP as EOPNOTSUPP in their libc headers. Having an own value for ENOTSUP which is different than EOPNOTSUPP often gives problems with userspace programs which expect both to be the same. One such example is a build error in the libuv package, as can be seen in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=900237. Since we dropped HP-UX support, there is no real benefit in keeping an own value for ENOTSUP. This patch drops the parisc value for ENOTSUP from the kernel sources. glibc needs no patch, it reuses the exported headers. Signed-off-by: Helge Deller <deller@gmx.de> |
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David Woodhouse
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e24f14b0ff |
tools headers: Synchronise x86 cpufeatures.h for L1TF additions
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> |
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Ingo Molnar
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16e0e6a83b |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Arnaldo Carvalho de Melo
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1f27a050fc |
tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
To cope with the changes in: |