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In 801e459a6f3a ("KVM: x86: Add a framework for supporting MSR-based
features") a new ioctl was introduced, which with this sync of the kvm
UAPI headers, makes 'perf trace' know about it:
$ cd /tmp/build/perf/trace/beauty/generated/ioctl/
$ diff -u kvm_ioctl_array.c.old kvm_ioctl_array.c
--- /tmp/kvm_ioctl_array.c 2018-03-05 11:55:38.409145056 -0300
+++ /tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c 2018-03-05 11:56:17.456153501 -0300
@@ -6,6 +6,7 @@
[0x04] = "GET_VCPU_MMAP_SIZE",
[0x05] = "GET_SUPPORTED_CPUID",
[0x09] = "GET_EMULATED_CPUID",
+ [0x0a] = "GET_MSR_FEATURE_INDEX_LIST",
[0x40] = "SET_MEMORY_REGION",
[0x41] = "CREATE_VCPU",
[0x42] = "GET_DIRTY_LOG",
So when using 'perf trace -e ioctl' that will appear along with the
others, like in this excerpt of a system wide session:
14.556 ( 0.006 ms): CPU 0/KVM/16077 ioctl(fd: 19<anon_inode:kvm-vcpu:0>, cmd: KVM_RUN) = 0
14.565 ( 0.006 ms): CPU 0/KVM/16077 ioctl(fd: 19<anon_inode:kvm-vcpu:0>, cmd: KVM_RUN) = 0
14.573 ( ): CPU 0/KVM/16077 ioctl(fd: 19<anon_inode:kvm-vcpu:0>, cmd: KVM_RUN) ...
34.075 ( 0.016 ms): gnome-shell/2192 ioctl(fd: 8</dev/dri/card0>, cmd: DRM_I915_GEM_BUSY, arg: 0x7ffe4e73e850) = 0
40.549 ( 0.012 ms): gnome-shell/2192 ioctl(fd: 8</dev/dri/card0>, cmd: DRM_I915_GEM_BUSY, arg: 0x7ffe4e73ece0) = 0
40.625 ( 0.005 ms): gnome-shell/2192 ioctl(fd: 8</dev/dri/card0>, cmd: DRM_I915_GEM_BUSY, arg: 0x7ffe4e73e940) = 0
40.632 ( 0.003 ms): gnome-shell/2192 ioctl(fd: 8</dev/dri/card0>, cmd: DRM_I915_GEM_MADVISE, arg: 0x7ffe4e73e9b0) = 0
This also silences the perf build header copy drift verifier:
make: Entering directory '/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j4' parallel build
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-h31oz5g0mt1dh2s2ajq6o6no@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Sync the following tooling headers with the latest kernel version:
tools/arch/powerpc/include/uapi/asm/kvm.h
tools/arch/x86/include/asm/cpufeatures.h
tools/include/uapi/drm/i915_drm.h
tools/include/uapi/linux/if_link.h
tools/include/uapi/linux/kvm.h
All the changes are new ABI additions which don't impact their use
in existing tooling.
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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The changes in the 3214d01f139b ("KVM: PPC: Book3S: Provide information
about hardware/firmware CVE workarounds") commit right now will not
produce any change in the tools, but that is because we still need to
improve tools/perf/trace/beauty/kvm_ioctl.sh to build per arch string
tables, so that we avoid assigning multiple times to the same command
string entry, i.e. multiple defines, for different arches, have the same
value, causing this:
In file included from trace/beauty/ioctl.c:82:0:
/tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c: In function ‘ioctl__scnprintf_kvm_cmd’:
/tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c:76:11: error: initialized field overwritten [-Werror=override-init]
/tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c:88:11: note: (near initialization for ‘kvm_ioctl_cmds[165]’)
/tmp/build/perf/trace/beauty/generated/ioctl/kvm_ioctl_array.c:90:11: error: initialized field overwritten [-Werror=override-init]
[0xa6] = "PPC_GET_SMMU_INFO",
^~~~~~~~~~~~~~~~~~~
So the onlye effect of updating the tools/ copy of ppc's kvm.h header
is to silence these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/kvm.h' differs from latest version at 'arch/powerpc/include/uapi/asm/kvm.h'
At some point we should do what we did for the errno tables and create
per-arch string translation tables for the KVM ioctl commands for the
architectures supporting KVM, such as s/390, PowerPC, x86_64 and ARM.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-jmcf78tqiudgn46zqfw2tgt2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Two kernel headers got modified recently, which are used by tooling as well:
tools/include/uapi/linux/kvm.h
arch/x86/include/asm/cpufeatures.h
None of those changes have an effect on tooling, so do a plain copy.
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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To pick up changes from these csets:
da9a1446d248 ("KVM: s390: provide a capability for AIS state migration")
5c5196da4e96 ("KVM: arm/arm64: Support EL1 phys timer register access in set/get reg")
None of which affects buildint tools/perf/.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Christoffer Dall <cdall@linaro.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-dd72s6izo4qdzt1isowlz8ji@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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After the SPDX license tags were added a number of tooling headers got out of
sync with their kernel variants, generating lots of build warnings.
Sync them:
- tools/arch/x86/include/asm/disabled-features.h,
tools/arch/x86/include/asm/required-features.h,
tools/include/linux/hash.h:
Remove the SPDX tag where the kernel version does not have it.
- tools/include/asm-generic/bitops/__fls.h,
tools/include/asm-generic/bitops/arch_hweight.h,
tools/include/asm-generic/bitops/const_hweight.h,
tools/include/asm-generic/bitops/fls.h,
tools/include/asm-generic/bitops/fls64.h,
tools/include/uapi/asm-generic/ioctls.h,
tools/include/uapi/asm-generic/mman-common.h,
tools/include/uapi/sound/asound.h,
tools/include/uapi/linux/kvm.h,
tools/include/uapi/linux/perf_event.h,
tools/include/uapi/linux/sched.h,
tools/include/uapi/linux/vhost.h,
tools/include/uapi/sound/asound.h:
Add the SPDX tag of the respective kernel header.
- tools/include/uapi/linux/bpf_common.h,
tools/include/uapi/linux/fcntl.h,
tools/include/uapi/linux/hw_breakpoint.h,
tools/include/uapi/linux/mman.h,
tools/include/uapi/linux/stat.h,
Change the tag to the kernel header version:
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
Also sync other header details:
- include/uapi/sound/asound.h:
Fix pointless end of line whitespace noise the header grew in this cycle.
- tools/arch/x86/lib/memcpy_64.S:
Sync the code and add tools/include/asm/export.h with dummy wrappers
to support building the kernel side code in a tooling header environment.
- tools/include/uapi/asm-generic/mman.h,
tools/include/uapi/linux/bpf.h:
Sync other details that don't impact tooling's use of the ABIs.
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Time for a sync with ABI/uapi headers with the upcoming v4.14 kernel.
None of the ABI changes require any source code level changes to our
existing in-kernel tooling code:
- tools/arch/s390/include/uapi/asm/kvm.h:
New KVM_S390_VM_TOD_EXT ABI, not used by in-kernel tooling.
- tools/arch/x86/include/asm/cpufeatures.h:
tools/arch/x86/include/asm/disabled-features.h:
New PCID, SME and VGIF x86 CPU feature bits defined.
- tools/include/asm-generic/hugetlb_encode.h:
tools/include/uapi/asm-generic/mman-common.h:
tools/include/uapi/linux/mman.h:
Two new madvise() flags, plus a hugetlb system call mmap flags
restructuring/extension changes.
- tools/include/uapi/drm/drm.h:
tools/include/uapi/drm/i915_drm.h:
New drm_syncobj_create flags definitions, new drm_syncobj_wait
and drm_syncobj_array ABIs. DRM_I915_PERF_* calls and a new
I915_PARAM_HAS_EXEC_FENCE_ARRAY ABI for the Intel driver.
- tools/include/uapi/linux/bpf.h:
New bpf_sock fields (::mark and ::priority), new XDP_REDIRECT
action, new kvm_ppc_smmu_info fields (::data_keys, instr_keys)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Taeung Song <treeze.taeung@gmail.com>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Yao Jin <yao.jin@linux.intel.com>
Link: http://lkml.kernel.org/r/20170913073823.lxmi4c7ejqlfabjx@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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We will use it to generate tables for beautifying ioctl's 'cmd' arg.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-nxwpq34hu6te1m2ra5m7o8n9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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