A small set of perf fixes:

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- Make the CHA discovery based on MSR readout to work around broken
    discovery tables in some SPR firmwares.
 
  - Prevent saving PEBS configuration which has software bits set that
    cause a crash when restored into the relevant MSR.
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Merge tag 'perf-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Thomas Gleixner:
 "A small set of perf fixes:

   - Make the MSR-readout based CHA discovery work around broken
     discovery tables in some SPR firmwares.

   - Prevent saving PEBS configuration which has software bits set that
     cause a crash when restored into the relevant MSR"

* tag 'perf-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/uncore: Correct the number of CHAs on SPR
  perf/x86/intel: Save/restore cpuc->active_pebs_data_cfg when using guest PEBS

...

This commit is contained in:

Linus Torvalds 2023-05-28 07:37:23 -04:00

parent abbf7fa15b 38776cc45e

commit 2d5438f4c6

2 changed files with 12 additions and 1 deletions

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2

arch/x86/events/intel/core.c

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11

arch/x86/events/intel/uncore_snbep.c

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