[GIT PULL] perf/urgent for v5.12-rc3

[Borislav Petkov <bp@suse.de>]

Hi Linus,

please pull there perf urgent fixes for v5.12-rc3.

Thx.

---

The following changes since commit a38fd8748464831584a19438cbb3082b5a2dab15:

  Linux 5.12-rc2 (2021-03-05 17:33:41 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/perf_urgent_for_v5.12-rc3

for you to fetch changes up to c8e2fe13d1d1f3a02842b7b909d4e4846a4b6a2c:

  x86/perf: Use RET0 as default for guest_get_msrs to handle "no PMU" case (2021-03-10 16:45:09 +0100)

----------------------------------------------------------------
- Make sure PMU internal buffers are flushed for per-CPU events too and
  properly handle PID/TID for large PEBS.

- Handle the case properly when there's no PMU and therefore return an
  empty list of perf MSRs for VMX to switch instead of reading random
  garbage from the stack.

----------------------------------------------------------------
Kan Liang (2):
      perf/core: Flush PMU internal buffers for per-CPU events
      perf/x86/intel: Set PERF_ATTACH_SCHED_CB for large PEBS and LBR

Sean Christopherson (1):
      x86/perf: Use RET0 as default for guest_get_msrs to handle "no PMU" case

 arch/x86/events/core.c       | 15 ++++++---------
 arch/x86/events/intel/core.c |  5 ++++-
 arch/x86/kvm/vmx/vmx.c       |  2 +-
 include/linux/perf_event.h   |  2 ++
 kernel/events/core.c         | 42 ++++++++++++++++++++++++++++++++++++++----
 5 files changed, 51 insertions(+), 15 deletions(-)

-- 
Regards/Gruss,
    Boris.

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