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authorLinus Torvalds <torvalds@linux-foundation.org>2018-11-30 20:31:48 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2018-11-30 20:31:48 +0100
commita1b3cf6d943800059adc262c4d839524c529db2d (patch)
treea8bdf99464f0b971dcbebf90d06af8072f218939 /Documentation
parentMerge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/ker... (diff)
parentuprobes: Fix handle_swbp() vs. unregister() + register() race once more (diff)
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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "Misc fixes: - counter freezing related regression fix - uprobes race fix - Intel PMU unusual event combination fix - .. and diverse tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: uprobes: Fix handle_swbp() vs. unregister() + register() race once more perf/x86/intel: Disallow precise_ip on BTS events perf/x86/intel: Add generic branch tracing check to intel_pmu_has_bts() perf/x86/intel: Move branch tracing setup to the Intel-specific source file perf/x86/intel: Fix regression by default disabling perfmon v4 interrupt handling perf tools beauty ioctl: Support new ISO7816 commands tools uapi asm-generic: Synchronize ioctls.h tools arch x86: Update tools's copy of cpufeatures.h tools headers uapi: Synchronize i915_drm.h perf tools: Restore proper cwd on return from mnt namespace tools build feature: Check if get_current_dir_name() is available perf tools: Fix crash on synthesizing the unit
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt3
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 19f4423e70d9..675170c36078 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -856,7 +856,8 @@
causing system reset or hang due to sending
INIT from AP to BSP.
- disable_counter_freezing [HW]
+ perf_v4_pmi= [X86,INTEL]
+ Format: <bool>
Disable Intel PMU counter freezing feature.
The feature only exists starting from
Arch Perfmon v4 (Skylake and newer).