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x86 fix:

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- Mark CPUID function 0x23 as being indexed - which bug could break
    VMs (Sean Christopherson)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fix from Ingo Molnar:

 - Mark CPUID function 0x23 as being indexed - which bug could break
   VMs (Sean Christopherson)

* tag 'x86-urgent-2026-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpuid: Mark CPUID function 0x23 as being indexed
This commit is contained in:
Linus Torvalds 2026-10-25 17:55:00 -10:00
commit 7d37252fc4
1 changed files with 1 additions and 0 deletions
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1
arch/x86/include/asm/cpuid/api.h
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@ -181,6 +181,7 @@ static __always_inline bool cpuid_function_is_indexed(u32 function)
case 0x1d:
case 0x1e:
case 0x1f:
case 0x23:
case 0x24:
case 0x8000001d:
return true;