- Relax the PAT MSR programming which was unnecessarily using the MTRR

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programming protocol of disabling the cache around the changes. The
    reason behind this is the current algorithm triggering a #VE
    exception for TDX guests and unnecessarily complicating things
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Merge tag 'x86_mtrr_for_v6.9_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 MTRR update from Borislav Petkov:

 - Relax the PAT MSR programming which was unnecessarily using the MTRR
   programming protocol of disabling the cache around the changes. The
   reason behind this is the current algorithm triggering a #VE
   exception for TDX guests and unnecessarily complicating things

* tag 'x86_mtrr_for_v6.9_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/pat: Simplify the PAT programming protocol

...

This commit is contained in:

Linus Torvalds 2024-03-11 17:27:12 -07:00

parent 742582acec ffc92cf3db

commit bfdb395a7c

2 changed files with 7 additions and 9 deletions

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7

arch/x86/kernel/cpu/cacheinfo.c

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9

arch/x86/mm/pat/memtype.c

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