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* Revert VERW fixed addressing patch

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Merge tag 'x86-apic-2024-03-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 APIC fixup from Dave Hansen:
 "Revert VERW fixed addressing patch.

  The reverted commit is not x86/apic material and was cruft left over
  from a merge.

  I believe the sequence of events went something like this:

   - The commit in question was added to x86/urgent

   - x86/urgent was merged into x86/apic to resolve a conflict

   - The commit was zapped from x86/urgent, but *not* from x86/apic

   - x86/apic got pullled (yesterday)

  I think we need to be a bit more vigilant when zapping things to make
  sure none of the other branches are depending on the zapped material"

* tag 'x86-apic-2024-03-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "x86/bugs: Use fixed addressing for VERW operand"
This commit is contained in:
Linus Torvalds 2024-03-12 09:45:34 -07:00
commit e66c58f743
1 changed files with 1 additions and 1 deletions
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2
arch/x86/include/asm/nospec-branch.h
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@ -314,7 +314,7 @@
* Note: Only the memory operand variant of VERW clears the CPU buffers. * Note: Only the memory operand variant of VERW clears the CPU buffers.
*/ */
.macro CLEAR_CPU_BUFFERS .macro CLEAR_CPU_BUFFERS
ALTERNATIVE "", __stringify(verw mds_verw_sel), X86_FEATURE_CLEAR_CPU_BUF ALTERNATIVE "", __stringify(verw _ASM_RIP(mds_verw_sel)), X86_FEATURE_CLEAR_CPU_BUF
.endm .endm
#else /* __ASSEMBLY__ */ #else /* __ASSEMBLY__ */