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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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3e72dfdf82
110 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Arnaldo Carvalho de Melo
|
71dd652897 |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To pick up the changes from: |
||
|
Arnaldo Carvalho de Melo
|
7636b58639 |
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
|
e813e65038 |
ARM: Cleanups and corner case fixes
PPC: Bugfixes
x86:
* Support for mapping DAX areas with large nested page table entries.
* Cleanups and bugfixes here too. A particularly important one is
a fix for FPU load when the thread has TIF_NEED_FPU_LOAD. There is
also a race condition which could be used in guest userspace to exploit
the guest kernel, for which the embargo expired today.
* Fast path for IPI delivery vmexits, shaving about 200 clock cycles
from IPI latency.
* Protect against "Spectre-v1/L1TF" (bring data in the cache via
speculative out of bound accesses, use L1TF on the sibling hyperthread
to read it), which unfortunately is an even bigger whack-a-mole game
than SpectreV1.
Sean continues his mission to rewrite KVM. In addition to a sizable
number of x86 patches, this time he contributed a pretty large refactoring
of vCPU creation that affects all architectures but should not have any
visible effect.
s390 will come next week together with some more x86 patches.
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Merge tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"This is the first batch of KVM changes.
ARM:
- cleanups and corner case fixes.
PPC:
- Bugfixes
x86:
- Support for mapping DAX areas with large nested page table entries.
- Cleanups and bugfixes here too. A particularly important one is a
fix for FPU load when the thread has TIF_NEED_FPU_LOAD. There is
also a race condition which could be used in guest userspace to
exploit the guest kernel, for which the embargo expired today.
- Fast path for IPI delivery vmexits, shaving about 200 clock cycles
from IPI latency.
- Protect against "Spectre-v1/L1TF" (bring data in the cache via
speculative out of bound accesses, use L1TF on the sibling
hyperthread to read it), which unfortunately is an even bigger
whack-a-mole game than SpectreV1.
Sean continues his mission to rewrite KVM. In addition to a sizable
number of x86 patches, this time he contributed a pretty large
refactoring of vCPU creation that affects all architectures but should
not have any visible effect.
s390 will come next week together with some more x86 patches"
* tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits)
x86/KVM: Clean up host's steal time structure
x86/KVM: Make sure KVM_VCPU_FLUSH_TLB flag is not missed
x86/kvm: Cache gfn to pfn translation
x86/kvm: Introduce kvm_(un)map_gfn()
x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit
KVM: PPC: Book3S PR: Fix -Werror=return-type build failure
KVM: PPC: Book3S HV: Release lock on page-out failure path
KVM: arm64: Treat emulated TVAL TimerValue as a signed 32-bit integer
KVM: arm64: pmu: Only handle supported event counters
KVM: arm64: pmu: Fix chained SW_INCR counters
KVM: arm64: pmu: Don't mark a counter as chained if the odd one is disabled
KVM: arm64: pmu: Don't increment SW_INCR if PMCR.E is unset
KVM: x86: Use a typedef for fastop functions
KVM: X86: Add 'else' to unify fastop and execute call path
KVM: x86: inline memslot_valid_for_gpte
KVM: x86/mmu: Use huge pages for DAX-backed files
KVM: x86/mmu: Remove lpage_is_disallowed() check from set_spte()
KVM: x86/mmu: Fold max_mapping_level() into kvm_mmu_hugepage_adjust()
KVM: x86/mmu: Zap any compound page when collapsing sptes
KVM: x86/mmu: Remove obsolete gfn restoration in FNAME(fetch)
...
|
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Linus Torvalds
|
c0275ae758 |
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu-features updates from Ingo Molnar: "The biggest change in this cycle was a large series from Sean Christopherson to clean up the handling of VMX features. This both fixes bugs/inconsistencies and makes the code more coherent and future-proof. There are also two cleanups and a minor TSX syslog messages enhancement" * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) x86/cpu: Remove redundant cpu_detect_cache_sizes() call x86/cpu: Print "VMX disabled" error message iff KVM is enabled KVM: VMX: Allow KVM_INTEL when building for Centaur and/or Zhaoxin CPUs perf/x86: Provide stubs of KVM helpers for non-Intel CPUs KVM: VMX: Use VMX_FEATURE_* flags to define VMCS control bits KVM: VMX: Check for full VMX support when verifying CPU compatibility KVM: VMX: Use VMX feature flag to query BIOS enabling KVM: VMX: Drop initialization of IA32_FEAT_CTL MSR x86/cpufeatures: Add flag to track whether MSR IA32_FEAT_CTL is configured x86/cpu: Set synthetic VMX cpufeatures during init_ia32_feat_ctl() x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_* x86/cpu: Detect VMX features on Intel, Centaur and Zhaoxin CPUs x86/vmx: Introduce VMX_FEATURES_* x86/cpu: Clear VMX feature flag if VMX is not fully enabled x86/zhaoxin: Use common IA32_FEAT_CTL MSR initialization x86/centaur: Use common IA32_FEAT_CTL MSR initialization x86/mce: WARN once if IA32_FEAT_CTL MSR is left unlocked x86/intel: Initialize IA32_FEAT_CTL MSR at boot tools/x86: Sync msr-index.h from kernel sources selftests, kvm: Replace manual MSR defs with common msr-index.h ... |
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Sean Christopherson
|
f6505c88bf |
tools/x86: Sync msr-index.h from kernel sources
Sync msr-index.h to pull in recent renames of the IA32_FEATURE_CONTROL MSR definitions. Update KVM's VMX selftest and turbostat accordingly. Keep the full name in turbostat's output to avoid breaking someone's workflow, e.g. if a script is looking for the full name. While using the renamed defines is by no means necessary, do the sync now to avoid leaving a landmine that will get stepped on the next time msr-index.h needs to be refreshed for some other reason. No functional change intended. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20191221044513.21680-4-sean.j.christopherson@intel.com |
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Xiaoyao Li
|
9dadc2f918 |
KVM: VMX: Rename INTERRUPT_PENDING to INTERRUPT_WINDOW
Rename interrupt-windown exiting related definitions to match the latest Intel SDM. No functional changes. Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Arnaldo Carvalho de Melo
|
a717ab38a5 |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To pick up the changes from: |
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Arnaldo Carvalho de Melo
|
8122b047dd |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes from these csets: |
||
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Linus Torvalds
|
3f59dbcace |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"The main kernel side changes in this cycle were:
- Various Intel-PT updates and optimizations (Alexander Shishkin)
- Prohibit kprobes on Xen/KVM emulate prefixes (Masami Hiramatsu)
- Add support for LSM and SELinux checks to control access to the
perf syscall (Joel Fernandes)
- Misc other changes, optimizations, fixes and cleanups - see the
shortlog for details.
There were numerous tooling changes as well - 254 non-merge commits.
Here are the main changes - too many to list in detail:
- Enhancements to core tooling infrastructure, perf.data, libperf,
libtraceevent, event parsing, vendor events, Intel PT, callchains,
BPF support and instruction decoding.
- There were updates to the following tools:
perf annotate
perf diff
perf inject
perf kvm
perf list
perf maps
perf parse
perf probe
perf record
perf report
perf script
perf stat
perf test
perf trace
- And a lot of other changes: please see the shortlog and Git log for
more details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (279 commits)
perf parse: Fix potential memory leak when handling tracepoint errors
perf probe: Fix spelling mistake "addrees" -> "address"
libtraceevent: Fix memory leakage in copy_filter_type
libtraceevent: Fix header installation
perf intel-bts: Does not support AUX area sampling
perf intel-pt: Add support for decoding AUX area samples
perf intel-pt: Add support for recording AUX area samples
perf pmu: When using default config, record which bits of config were changed by the user
perf auxtrace: Add support for queuing AUX area samples
perf session: Add facility to peek at all events
perf auxtrace: Add support for dumping AUX area samples
perf inject: Cut AUX area samples
perf record: Add aux-sample-size config term
perf record: Add support for AUX area sampling
perf auxtrace: Add support for AUX area sample recording
perf auxtrace: Move perf_evsel__find_pmu()
perf record: Add a function to test for kernel support for AUX area sampling
perf tools: Add kernel AUX area sampling definitions
perf/core: Make the mlock accounting simple again
perf report: Jump to symbol source view from total cycles view
...
|
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Linus Torvalds
|
a25bbc2644 |
Merge branches 'x86-cpu-for-linus' and 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu and fpu updates from Ingo Molnar: - math-emu fixes - CPUID updates - sanity-check RDRAND output to see whether the CPU at least pretends to produce random data - various unaligned-access across cachelines fixes in preparation of hardware level split-lock detection - fix MAXSMP constraints to not allow !CPUMASK_OFFSTACK kernels with larger than 512 NR_CPUS - misc FPU related cleanups * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Align the x86_capability array to size of unsigned long x86/cpu: Align cpu_caps_cleared and cpu_caps_set to unsigned long x86/umip: Make the comments vendor-agnostic x86/Kconfig: Rename UMIP config parameter x86/Kconfig: Enforce limit of 512 CPUs with MAXSMP and no CPUMASK_OFFSTACK x86/cpufeatures: Add feature bit RDPRU on AMD x86/math-emu: Limit MATH_EMULATION to 486SX compatibles x86/math-emu: Check __copy_from_user() result x86/rdrand: Sanity-check RDRAND output * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/fpu: Use XFEATURE_FP/SSE enum values instead of hardcoded numbers x86/fpu: Shrink space allocated for xstate_comp_offsets x86/fpu: Update stale variable name in comment |
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Ingo Molnar
|
ceb9e77324 |
Merge branch 'x86/core' into perf/core, to resolve conflicts and to pick up completed topic tree
Conflicts: tools/perf/check-headers.sh Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Babu Moger
|
b971880fe7 |
x86/Kconfig: Rename UMIP config parameter
AMD 2nd generation EPYC processors support the UMIP (User-Mode Instruction Prevention) feature. So, rename X86_INTEL_UMIP to generic X86_UMIP and modify the text to cover both Intel and AMD. [ bp: take of the disabled-features.h copy in tools/ too. ] Signed-off-by: Babu Moger <babu.moger@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "x86@kernel.org" <x86@kernel.org> Link: https://lkml.kernel.org/r/157298912544.17462.2018334793891409521.stgit@naples-babu.amd.com |
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Ingo Molnar
|
27a0a90d63 |
perf/core improvements and fixes:
perf trace:
- Add syscall failure stats to -s/--summary and -S/--with-summary, works in
combination with specifying just a set of syscalls, see below first with
-s/--summary, then with -S/--with-summary just for the syscalls we saw failing
with -s:
# perf trace -s sleep 1
Summary of events:
sleep (16218), 80 events, 93.0%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
----------- ----- ------ -------- -------- -------- -------- ------
nanosleep 1 0 1000.091 1000.091 1000.091 1000.091 0.00%
mmap 8 0 0.045 0.005 0.006 0.008 7.09%
mprotect 4 0 0.028 0.005 0.007 0.009 11.38%
openat 3 0 0.021 0.005 0.007 0.009 14.07%
munmap 1 0 0.017 0.017 0.017 0.017 0.00%
brk 4 0 0.010 0.001 0.002 0.004 23.15%
read 4 0 0.009 0.002 0.002 0.003 8.13%
close 5 0 0.008 0.001 0.002 0.002 10.83%
fstat 3 0 0.006 0.002 0.002 0.002 6.97%
access 1 1 0.006 0.006 0.006 0.006 0.00%
lseek 3 0 0.005 0.001 0.002 0.002 7.37%
arch_prctl 2 1 0.004 0.001 0.002 0.002 17.64%
execve 1 0 0.000 0.000 0.000 0.000 0.00%
# perf trace -e access,arch_prctl -S sleep 1
0.000 ( 0.006 ms): sleep/19503 arch_prctl(option: 0x3001, arg2: 0x7fff165996b0) = -1 EINVAL (Invalid argument)
0.024 ( 0.006 ms): sleep/19503 access(filename: 0x2177e510, mode: R) = -1 ENOENT (No such file or directory)
0.136 ( 0.002 ms): sleep/19503 arch_prctl(option: SET_FS, arg2: 0x7f9421737580) = 0
Summary of events:
sleep (19503), 6 events, 50.0%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
---------- ----- ------ ------ ------ ------ ------ ------
arch_prctl 2 1 0.008 0.002 0.004 0.006 57.22%
access 1 1 0.006 0.006 0.006 0.006 0.00%
#
- Introduce --errno-summary, to drill down a bit more in the errno stats:
# perf trace --errno-summary -e access,arch_prctl -S sleep 1
0.000 ( 0.006 ms): sleep/5587 arch_prctl(option: 0x3001, arg2: 0x7ffd6ba6aa00) = -1 EINVAL (Invalid argument)
0.028 ( 0.007 ms): sleep/5587 access(filename: 0xb83d9510, mode: R) = -1 ENOENT (No such file or directory)
0.172 ( 0.003 ms): sleep/5587 arch_prctl(option: SET_FS, arg2: 0x7f45b8392580) = 0
Summary of events:
sleep (5587), 6 events, 50.0%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
---------- ----- ------ ------ ------ ------ ------ ------
arch_prctl 2 1 0.009 0.003 0.005 0.006 38.90%
EINVAL: 1
access 1 1 0.007 0.007 0.007 0.007 0.00%
ENOENT: 1
#
- Filter own pid to avoid a feedback look in 'perf trace record -a'
- Add the glue for the auto generated x86 IRQ vector array.
- Show error message when not finding a field used in a filter expression
# perf trace --max-events=4 -e syscalls:sys_enter_write --filter="cnt>32767"
Failed to set filter "(cnt>32767) && (common_pid != 19938 && common_pid != 8922)" on event syscalls:sys_enter_write with 22 (Invalid argument)
#
# perf trace --max-events=4 -e syscalls:sys_enter_write --filter="count>32767"
0.000 python3.5/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dc53600, count: 172086)
12.641 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db63660, count: 75994)
27.738 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db4b1e0, count: 41635)
136.070 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dbab510, count: 62232)
#
- Add a generator for x86's IRQ vectors -> strings
- Introduce stroul() (string -> number) methods for the strarray and
strarrays classes, also strtoul_flags, allowing to go from both strings
and or-ed strings to numbers, allowing things like:
# perf trace -e syscalls:sys_enter_mmap --filter="flags==DENYWRITE|PRIVATE|FIXED" sleep 1
0.000 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2aa5000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000)
0.011 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2bf2000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000)
0.015 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2c3f000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000)
#
Allowing to narrow down from the complete set of mmap calls for that workload:
# perf trace -e syscalls:sys_enter_mmap sleep 1
0.000 sleep/22695 syscalls:sys_enter_mmap(len: 134773, prot: READ, flags: PRIVATE, fd: 3)
0.041 sleep/22695 syscalls:sys_enter_mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS)
0.053 sleep/22695 syscalls:sys_enter_mmap(len: 1857472, prot: READ, flags: PRIVATE|DENYWRITE, fd: 3)
0.069 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd23ffb6000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000)
0.077 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240103000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000)
0.083 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240150000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000)
0.095 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240156000, len: 14272, prot: READ|WRITE, flags: PRIVATE|FIXED|ANONYMOUS)
0.339 sleep/22695 syscalls:sys_enter_mmap(len: 217750512, prot: READ, flags: PRIVATE, fd: 3)
#
Works with all targets, so, for system wide, looking at who calls mmap with flags set to just "PRIVATE":
# perf trace --max-events=5 -e syscalls:sys_enter_mmap --filter="flags==PRIVATE"
0.000 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14)
0.050 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14)
0.062 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14)
0.145 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18)
0.183 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18)
#
# perf trace --max-events=2 -e syscalls:sys_enter_lseek --filter="whence==SET && offset != 0"
0.000 Cache2 I/O/12047 syscalls:sys_enter_lseek(fd: 277, offset: 43, whence: SET)
1142.070 mozStorage #5/12302 syscalls:sys_enter_lseek(fd: 44</home/acme/.mozilla/firefox/ina67tev.default/cookies.sqlite-wal>, offset: 393536, whence: SET)
#
perf annotate:
- Fix objdump --no-show-raw-insn flag to work with goth gcc and clang.
- Streamline objdump execution, preserving the right error codes for better
reporting to user.
perf report:
- Add warning when libunwind not compiled in.
perf stat:
Jin Yao:
- Support --all-kernel/--all-user, to match options available in 'perf record',
asking that all the events specified work just with kernel or user events.
perf list:
Jin Yao:
- Hide deprecated events by default, allow showing them with --deprecated.
libbperf:
Jiri Olsa:
- Allow to build with -ltcmalloc.
- Finish mmap interface, getting more stuff from tools/perf while adding
abstractions to avoid pulling too much stuff, to get libperf to grow as
tools needs things like auxtrace, etc.
perf scripting engines:
Steven Rostedt (VMware):
- Iterate on tep event arrays directly, fixing script generation with
'-g python' when having multiple tracepoints in a perf.data file.
core:
- Allow to build with -ltcmalloc.
perf test:
Leo Yan:
- Report failure for mmap events.
- Avoid infinite loop for task exit case.
- Remove needless headers for bp_account test.
- Add dedicated checking helper is_supported().
- Disable bp_signal testing for arm64.
Vendor events:
arm64:
John Garry:
- Fix Hisi hip08 DDRC PMU eventname.
- Add some missing events for Hisi hip08 DDRC, L3C and HHA PMUs.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-5.5-20191021' 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 trace:
- Add syscall failure stats to -s/--summary and -S/--with-summary, works in
combination with specifying just a set of syscalls, see below first with
-s/--summary, then with -S/--with-summary just for the syscalls we saw failing
with -s:
# perf trace -s sleep 1
Summary of events:
sleep (16218), 80 events, 93.0%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
----------- ----- ------ -------- -------- -------- -------- ------
nanosleep 1 0 1000.091 1000.091 1000.091 1000.091 0.00%
mmap 8 0 0.045 0.005 0.006 0.008 7.09%
mprotect 4 0 0.028 0.005 0.007 0.009 11.38%
openat 3 0 0.021 0.005 0.007 0.009 14.07%
munmap 1 0 0.017 0.017 0.017 0.017 0.00%
brk 4 0 0.010 0.001 0.002 0.004 23.15%
read 4 0 0.009 0.002 0.002 0.003 8.13%
close 5 0 0.008 0.001 0.002 0.002 10.83%
fstat 3 0 0.006 0.002 0.002 0.002 6.97%
access 1 1 0.006 0.006 0.006 0.006 0.00%
lseek 3 0 0.005 0.001 0.002 0.002 7.37%
arch_prctl 2 1 0.004 0.001 0.002 0.002 17.64%
execve 1 0 0.000 0.000 0.000 0.000 0.00%
# perf trace -e access,arch_prctl -S sleep 1
0.000 ( 0.006 ms): sleep/19503 arch_prctl(option: 0x3001, arg2: 0x7fff165996b0) = -1 EINVAL (Invalid argument)
0.024 ( 0.006 ms): sleep/19503 access(filename: 0x2177e510, mode: R) = -1 ENOENT (No such file or directory)
0.136 ( 0.002 ms): sleep/19503 arch_prctl(option: SET_FS, arg2: 0x7f9421737580) = 0
Summary of events:
sleep (19503), 6 events, 50.0%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
---------- ----- ------ ------ ------ ------ ------ ------
arch_prctl 2 1 0.008 0.002 0.004 0.006 57.22%
access 1 1 0.006 0.006 0.006 0.006 0.00%
#
- Introduce --errno-summary, to drill down a bit more in the errno stats:
# perf trace --errno-summary -e access,arch_prctl -S sleep 1
0.000 ( 0.006 ms): sleep/5587 arch_prctl(option: 0x3001, arg2: 0x7ffd6ba6aa00) = -1 EINVAL (Invalid argument)
0.028 ( 0.007 ms): sleep/5587 access(filename: 0xb83d9510, mode: R) = -1 ENOENT (No such file or directory)
0.172 ( 0.003 ms): sleep/5587 arch_prctl(option: SET_FS, arg2: 0x7f45b8392580) = 0
Summary of events:
sleep (5587), 6 events, 50.0%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
---------- ----- ------ ------ ------ ------ ------ ------
arch_prctl 2 1 0.009 0.003 0.005 0.006 38.90%
EINVAL: 1
access 1 1 0.007 0.007 0.007 0.007 0.00%
ENOENT: 1
#
- Filter own pid to avoid a feedback look in 'perf trace record -a'
- Add the glue for the auto generated x86 IRQ vector array.
- Show error message when not finding a field used in a filter expression
# perf trace --max-events=4 -e syscalls:sys_enter_write --filter="cnt>32767"
Failed to set filter "(cnt>32767) && (common_pid != 19938 && common_pid != 8922)" on event syscalls:sys_enter_write with 22 (Invalid argument)
#
# perf trace --max-events=4 -e syscalls:sys_enter_write --filter="count>32767"
0.000 python3.5/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dc53600, count: 172086)
12.641 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db63660, count: 75994)
27.738 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db4b1e0, count: 41635)
136.070 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dbab510, count: 62232)
#
- Add a generator for x86's IRQ vectors -> strings
- Introduce stroul() (string -> number) methods for the strarray and
strarrays classes, also strtoul_flags, allowing to go from both strings
and or-ed strings to numbers, allowing things like:
# perf trace -e syscalls:sys_enter_mmap --filter="flags==DENYWRITE|PRIVATE|FIXED" sleep 1
0.000 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2aa5000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000)
0.011 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2bf2000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000)
0.015 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2c3f000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000)
#
Allowing to narrow down from the complete set of mmap calls for that workload:
# perf trace -e syscalls:sys_enter_mmap sleep 1
0.000 sleep/22695 syscalls:sys_enter_mmap(len: 134773, prot: READ, flags: PRIVATE, fd: 3)
0.041 sleep/22695 syscalls:sys_enter_mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS)
0.053 sleep/22695 syscalls:sys_enter_mmap(len: 1857472, prot: READ, flags: PRIVATE|DENYWRITE, fd: 3)
0.069 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd23ffb6000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000)
0.077 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240103000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000)
0.083 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240150000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000)
0.095 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240156000, len: 14272, prot: READ|WRITE, flags: PRIVATE|FIXED|ANONYMOUS)
0.339 sleep/22695 syscalls:sys_enter_mmap(len: 217750512, prot: READ, flags: PRIVATE, fd: 3)
#
Works with all targets, so, for system wide, looking at who calls mmap with flags set to just "PRIVATE":
# perf trace --max-events=5 -e syscalls:sys_enter_mmap --filter="flags==PRIVATE"
0.000 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14)
0.050 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14)
0.062 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14)
0.145 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18)
0.183 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18)
#
# perf trace --max-events=2 -e syscalls:sys_enter_lseek --filter="whence==SET && offset != 0"
0.000 Cache2 I/O/12047 syscalls:sys_enter_lseek(fd: 277, offset: 43, whence: SET)
1142.070 mozStorage #5/12302 syscalls:sys_enter_lseek(fd: 44</home/acme/.mozilla/firefox/ina67tev.default/cookies.sqlite-wal>, offset: 393536, whence: SET)
#
perf annotate:
- Fix objdump --no-show-raw-insn flag to work with goth gcc and clang.
- Streamline objdump execution, preserving the right error codes for better
reporting to user.
perf report:
- Add warning when libunwind not compiled in.
perf stat:
Jin Yao:
- Support --all-kernel/--all-user, to match options available in 'perf record',
asking that all the events specified work just with kernel or user events.
perf list:
Jin Yao:
- Hide deprecated events by default, allow showing them with --deprecated.
libbperf:
Jiri Olsa:
- Allow to build with -ltcmalloc.
- Finish mmap interface, getting more stuff from tools/perf while adding
abstractions to avoid pulling too much stuff, to get libperf to grow as
tools needs things like auxtrace, etc.
perf scripting engines:
Steven Rostedt (VMware):
- Iterate on tep event arrays directly, fixing script generation with
'-g python' when having multiple tracepoints in a perf.data file.
core:
- Allow to build with -ltcmalloc.
perf test:
Leo Yan:
- Report failure for mmap events.
- Avoid infinite loop for task exit case.
- Remove needless headers for bp_account test.
- Add dedicated checking helper is_supported().
- Disable bp_signal testing for arm64.
Vendor events:
arm64:
John Garry:
- Fix Hisi hip08 DDRC PMU eventname.
- Add some missing events for Hisi hip08 DDRC, L3C and HHA PMUs.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
||
|
Ingo Molnar
|
aa7a7b7297 |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|
Masami Hiramatsu
|
4d65adfcd1 |
x86: xen: insn: Decode Xen and KVM emulate-prefix signature
Decode Xen and KVM's emulate-prefix signature by x86 insn decoder. It is called "prefix" but actually not x86 instruction prefix, so this adds insn.emulate_prefix_size field instead of reusing insn.prefixes. If x86 decoder finds a special sequence of instructions of XEN_EMULATE_PREFIX and 'ud2a; .ascii "kvm"', it just counts the length, set insn.emulate_prefix_size and fold it with the next instruction. In other words, the signature and the next instruction is treated as a single instruction. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: x86@kernel.org Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Andrew Cooper <andrew.cooper3@citrix.com> Cc: Borislav Petkov <bp@alien8.de> Cc: xen-devel@lists.xenproject.org Cc: Randy Dunlap <rdunlap@infradead.org> Link: https://lkml.kernel.org/r/156777564986.25081.4964537658500952557.stgit@devnote2 |
||
|
Arnaldo Carvalho de Melo
|
d2b72b7280 |
tools arch x86: Grab a copy of the file containing the IRQ vector defines
We'll use it to generate a table and then convert the irq_vectors:* tracepoint 'vector' arg in things like perf trace, script, etc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-z7gi058lzhnrm32slevg3xod@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Arnaldo Carvalho de Melo
|
7cb3a24457 |
tools headers kvm: Sync kvm headers with the kernel sources
To pick the changes in:
|
||
|
Arnaldo Carvalho de Melo
|
7a12f514c4 |
tools headers kvm: Sync kvm headers with the kernel sources
To pick the changes in:
|
||
|
Arnaldo Carvalho de Melo
|
444e2ff34d |
tools arch x86: Grab a copy of the file containing the MSR numbers
We'll use it to generate a table and then convert the
msr:{read,write}_msr 'msr' option in things like perf trace, script,
etc.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-y1f4s0y1s43d4drh7pd2huzn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
b7ad610848 |
tools headers kvm: Sync kvm headers with the kernel sources
To pick the changes in: |
||
|
Arnaldo Carvalho de Melo
|
40f1c039c7 |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To pick up the changes from: |
||
|
Arnaldo Carvalho de Melo
|
761830a03c |
tools arch x86 uapi: Synch asm/unistd.h with the kernel sources
To pick up the change in:
|
||
|
Linus Torvalds
|
22331f8952 |
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu-feature updates from Ingo Molnar:
- Rework the Intel model names symbols/macros, which were decades of
ad-hoc extensions and added random noise. It's now a coherent, easy
to follow nomenclature.
- Add new Intel CPU model IDs:
- "Tiger Lake" desktop and mobile models
- "Elkhart Lake" model ID
- and the "Lightning Mountain" variant of Airmont, plus support code
- Add the new AVX512_VP2INTERSECT instruction to cpufeatures
- Remove Intel MPX user-visible APIs and the self-tests, because the
toolchain (gcc) is not supporting it going forward. This is the
first, lowest-risk phase of MPX removal.
- Remove X86_FEATURE_MFENCE_RDTSC
- Various smaller cleanups and fixes
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
x86/cpu: Update init data for new Airmont CPU model
x86/cpu: Add new Airmont variant to Intel family
x86/cpu: Add Elkhart Lake to Intel family
x86/cpu: Add Tiger Lake to Intel family
x86: Correct misc typos
x86/intel: Add common OPTDIFFs
x86/intel: Aggregate microserver naming
x86/intel: Aggregate big core graphics naming
x86/intel: Aggregate big core mobile naming
x86/intel: Aggregate big core client naming
x86/cpufeature: Explain the macro duplication
x86/ftrace: Remove mcount() declaration
x86/PCI: Remove superfluous returns from void functions
x86/msr-index: Move AMD MSRs where they belong
x86/cpu: Use constant definitions for CPU models
lib: Remove redundant ftrace flag removal
x86/crash: Remove unnecessary comparison
x86/bitops: Use __builtin_constant_p() directly instead of IS_IMMEDIATE()
x86: Remove X86_FEATURE_MFENCE_RDTSC
x86/mpx: Remove MPX APIs
...
|
||
|
Josh Poimboeuf
|
00a263902a |
perf intel-pt: Use shared x86 insn decoder
Now that there's a common version of the decoder for all tools, use it instead of the local copy. Also use perf's check-headers.sh script to diff the decoder files to make sure they remain in sync with the kernel version. Objtool has a similar check. Committer notes: Had to keep this all pointing explicitely to x86 headers/files, i.e. instead of asm/isnn.h we had to use ../include/asm/insn.h when the files were in differemt dirs, or just replace "<asm/foo.h>" with "foo.h". This way we continue to be able to process perf.data files with Intel PT traces in distros other than x86. Also fixed up the awk script paths to use $(srcdir)/tools/arch instead or relative directories so that we keep detached tarballs (make help | grep perf) working. For now the include lines in these headers are being ignored so as not to flag false reports of kernel/tools out of sync. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: x86@kernel.org Link: http://lore.kernel.org/lkml/8a37e615d2880f039505d693d1e068a009358a2b.1567118001.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Josh Poimboeuf
|
d046b72548 |
objtool: Move x86 insn decoder to a common location
The kernel tree has three identical copies of the x86 instruction decoder. Two of them are in the tools subdir. The tools subdir is supposed to be completely standalone and separate from the kernel. So having at least one copy of the kernel decoder in the tools subdir is unavoidable. However, we don't need *two* of them. Move objtool's copy of the decoder to a shared location, so that perf will also be able to use it. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: x86@kernel.org Link: http://lore.kernel.org/lkml/55b486b88f6bcd0c9a2a04b34f964860c8390ca8.1567118001.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|
Ingo Molnar
|
b3e30c9884 |
Linux 5.3-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl1i2wkeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGcDQIAJINYON5WdDSFDpp htva213hSIxYLix8Dc4cTMk8qT/P2MAj9pPYERuLwIxWZlfbduW6Fxy8bJANZ7k3 4cJ/IbmA5M5ZIaOJTTL45w8H0CMR/4mdPl5rb5k/Wkh449Cj101gZLlh0FEtR5zG uDJecKSuHjH1ikySk6+zmRG5X+lq6wNY8NkuBtfwAwLffFc0ljQHwPUMJ8ojgqt/ p3ChNgtb/I6U6ExITlyktKdP59bAoHAoBiKKFZWw5yJWgXE2q4Sv9nT4Btkr5KdJ 9mnWnSaSLwptNCOtU4tKLwFIZP2WoVXGPNxxq4XLoTEuieXCqmikhc9tSSTwk+Tp CKHN6wU= =JkJ4 -----END PGP SIGNATURE----- Merge tag 'v5.3-rc6' into x86/cpu, to pick up fixes Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|
Arnaldo Carvalho de Melo
|
0ac10d87a5 |
tools arch x86: Sync asm/cpufeatures.h with the with the kernel
To pick up the changes in: |
||
|
Arnaldo Carvalho de Melo
|
e0d99c4d24 |
tools headers UAPI: Update tools's copy of kvm.h headers
Picking the changes from: |
||
|
Josh Poimboeuf
|
be261ffce6 |
x86: Remove X86_FEATURE_MFENCE_RDTSC
AMD and Intel both have serializing lfence (X86_FEATURE_LFENCE_RDTSC). They've both had it for a long time, and AMD has had it enabled in Linux since Spectre v1 was announced. Back then, there was a proposal to remove the serializing mfence feature bit (X86_FEATURE_MFENCE_RDTSC), since both AMD and Intel have serializing lfence. At the time, it was (ahem) speculated that some hypervisors might not yet support its removal, so it remained for the time being. Now a year-and-a-half later, it should be safe to remove. I asked Andrew Cooper about whether it's still needed: So if you're virtualised, you've got no choice in the matter. lfence is either dispatch-serialising or not on AMD, and you won't be able to change it. Furthermore, you can't accurately tell what state the bit is in, because the MSR might not be virtualised at all, or may not reflect the true state in hardware. Worse still, attempting to set the bit may not be successful even if there isn't a fault for doing so. Xen sets the DE_CFG bit unconditionally, as does Linux by the looks of things (see MSR_F10H_DECFG_LFENCE_SERIALIZE_BIT). ISTR other hypervisor vendors saying the same, but I don't have any information to hand. If you are running under a hypervisor which has been updated, then lfence will almost certainly be dispatch-serialising in practice, and you'll almost certainly see the bit already set in DE_CFG. If you're running under a hypervisor which hasn't been patched since Spectre, you've already lost in many more ways. I'd argue that X86_FEATURE_MFENCE_RDTSC is not worth keeping. So remove it. This will reduce some code rot, and also make it easier to hook barrier_nospec() up to a cmdline disable for performance raisins, without having to need an alternative_3() macro. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/d990aa51e40063acb9888e8c1b688e41355a9588.1562255067.git.jpoimboe@redhat.com |
||
|
Arnaldo Carvalho de Melo
|
686cbe9e5d |
tools arch x86: Sync asm/cpufeatures.h with the with the kernel
To pick up the changes in: |
||
|
Arnaldo Carvalho de Melo
|
c499d1f483 |
tools arch kvm: Sync kvm headers with the kernel sources
To pick up the changes from: |
||
|
Linus Torvalds
|
57103eb7c6 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "Various fixes, most of them related to bugs perf fuzzing found in the x86 code" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/regs: Use PERF_REG_EXTENDED_MASK perf/x86: Remove pmu->pebs_no_xmm_regs perf/x86: Clean up PEBS_XMM_REGS perf/x86/regs: Check reserved bits perf/x86: Disable extended registers for non-supported PMUs perf/ioctl: Add check for the sample_period value perf/core: Fix perf_sample_regs_user() mm check |
||
|
Kan Liang
|
8b12b812f5 |
perf/x86/regs: Use PERF_REG_EXTENDED_MASK
Use the macro defined in kernel ABI header to replace the local name. No functional change. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: https://lkml.kernel.org/r/1559081314-9714-5-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|
Linus Torvalds
|
b3e978337b |
Fixes for ARM and x86, plus selftest patches and nicer structs
for nested state save/restore. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAABAgAGBQJdC7NHAAoJEL/70l94x66DHm0H/R8L80sWe1OJbHHK8caPpwm2 mPt6JNcG/ysbG/uoMuVsdRAjZsg9l8JZB9xfA2m/ZPQQThjSG/WX0rU+gWMMI3X8 8ZbN4BCFoiNpOzOkhmStwzMWnvovKvMfhFW0BAI3HLUfM9A+XyVvNM/JbLOvEMRk WB2SxYRc38ZvIbi8eXgsoFrVyLFB2Fj/0jps4FbKnkjkl37PTDehYLWQ1pt9KsWS 2KdGoXm7/18ottqf0DPfLe0hiiiDuK3akKz7WQBMsAJHi4Fm5j39NuseeRdlablk uE4vM/sVaLn4xwM9JfrsBl9TzZ2qHsOTRlMQG4iNWjEAuPKa45lt0Jo7OBs6DSY= =Lzxe -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm fixes from Paolo Bonzini: "Fixes for ARM and x86, plus selftest patches and nicer structs for nested state save/restore" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: nVMX: reorganize initial steps of vmx_set_nested_state KVM: arm/arm64: Fix emulated ptimer irq injection tests: kvm: Check for a kernel warning kvm: tests: Sort tests in the Makefile alphabetically KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT KVM: x86: Modify struct kvm_nested_state to have explicit fields for data KVM: fix typo in documentation KVM: nVMX: use correct clean fields when copying from eVMCS KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST KVM: arm64: Implement vq_present() as a macro |
||
|
Liran Alon
|
6ca00dfafd |
KVM: x86: Modify struct kvm_nested_state to have explicit fields for data
Improve the KVM_{GET,SET}_NESTED_STATE structs by detailing the format
of VMX nested state data in a struct.
In order to avoid changing the ioctl values of
KVM_{GET,SET}_NESTED_STATE, there is a need to preserve
sizeof(struct kvm_nested_state). This is done by defining the data
struct as "data.vmx[0]". It was the most elegant way I found to
preserve struct size while still keeping struct readable and easy to
maintain. It does have a misfortunate side-effect that now it has to be
accessed as "data.vmx[0]" rather than just "data.vmx".
Because we are already modifying these structs, I also modified the
following:
* Define the "format" field values as macros.
* Rename vmcs_pa to vmcs12_pa for better readability.
Signed-off-by: Liran Alon <liran.alon@oracle.com>
[Remove SVM stubs, add KVM_STATE_NESTED_VMX_VMCS12_SIZE. - Paolo]
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
||
|
Arnaldo Carvalho de Melo
|
b979540a75 |
tools arch x86: Sync asm/cpufeatures.h with the with the kernel
To pick up the changes in: |
||
|
Ingo Molnar
|
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>
|
||
|
Arnaldo Carvalho de Melo
|
0ceb5499a8 |
tools x86 uapi asm: Sync the pt_regs.h copy with the kernel sources
To get the changes in:
|
||
|
Arnaldo Carvalho de Melo
|
f98f10f352 |
tools arch uapi: Sync the x86 kvm.h copy
To get the changes in:
|
||
|
Linus Torvalds
|
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
...
|
||
|
Arnaldo Carvalho de Melo
|
24e45b49ee |
tools uapi x86: Sync vmx.h with the kernel
To pick up the changes from:
|
||
|
David S. Miller
|
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>
|
||
|
Daniel Borkmann
|
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
|
||
|
Arnaldo Carvalho de Melo
|
949af89af0 |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To get the changes from:
|
||
|
Ingo Molnar
|
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>
|
||
|
Masahiro Yamada
|
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> |
||
|
Arnaldo Carvalho de Melo
|
86c22ab722 |
tools headers x86: Sync asm/cpufeatures.h copy with the kernel sources
To get the changes from: |
||
|
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
|
||
|
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> |
||
|
Arnaldo Carvalho de Melo
|
65e259d5c4 |
tools arch x86: Update tools's copy of cpufeatures.h
To get the changes in the following csets: |