linux-kernel - [GIT PULL] perf events fixes

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Message-ID: <aBcUfPw98HOpq61B@gmail.com>
Date: Sun, 4 May 2025 09:17:16 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Jiri Olsa <jolsa@...nel.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Mark Rutland <mark.rutland@....com>,
	Namhyung Kim <namhyung@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kan Liang <kan.liang@...ux.intel.com>
Subject: [GIT PULL] perf events fixes

Linus,

Please pull the latest perf/urgent Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-urgent-2025-05-04

   # HEAD: 58f6217e5d0132a9f14e401e62796916aa055c1b perf/x86/intel: KVM: Mask PEBS_ENABLE loaded for guest with vCPU's value.

Misc perf fixes:

 - Require group events for branch counter groups and
   PEBS counter snapshotting groups to be x86 events.

 - Fix the handling of counter-snapshotting of non-precise
   events, where counter values may move backwards a bit,
   temporarily, confusing the code.

 - Restrict perf/KVM PEBS to guest-owned events.

 Thanks,

	Ingo

------------------>
Kan Liang (3):
      perf/x86/intel: Only check the group flag for X86 leader
      perf/x86/intel: Check the X86 leader for pebs_counter_event_group
      perf/x86/intel/ds: Fix counter backwards of non-precise events counters-snapshotting

Sean Christopherson (1):
      perf/x86/intel: KVM: Mask PEBS_ENABLE loaded for guest with vCPU's value.


 arch/x86/events/core.c       |  2 +-
 arch/x86/events/intel/core.c |  2 +-
 arch/x86/events/intel/ds.c   | 21 +++++++++++++++++++--
 arch/x86/events/perf_event.h | 11 +++++++++--
 4 files changed, 30 insertions(+), 6 deletions(-)