From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue, 25 Mar 2025 20:30:18 +0000 (-0700)
Subject: Merge tag 'x86_bugs_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=906174776c0eb539e4d65c54a8019d954a6fb35d;p=linux-2.6-microblaze.git

Merge tag 'x86_bugs_for_v6.15' of git://git./linux/kernel/git/tip/tip

Pull x86 speculation mitigation updates from Borislav Petkov:

 - Some preparatory work to convert the mitigations machinery to
   mitigating attack vectors instead of single vulnerabilities

 - Untangle and remove a now unneeded X86_FEATURE_USE_IBPB flag

 - Add support for a Zen5-specific SRSO mitigation

 - Cleanups and minor improvements

* tag 'x86_bugs_for_v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bugs: Make spectre user default depend on MITIGATION_SPECTRE_V2
  x86/bugs: Use the cpu_smt_possible() helper instead of open-coded code
  x86/bugs: Add AUTO mitigations for mds/taa/mmio/rfds
  x86/bugs: Relocate mds/taa/mmio/rfds defines
  x86/bugs: Add X86_BUG_SPECTRE_V2_USER
  x86/bugs: Remove X86_FEATURE_USE_IBPB
  KVM: nVMX: Always use IBPB to properly virtualize IBRS
  x86/bugs: Use a static branch to guard IBPB on vCPU switch
  x86/bugs: Remove the X86_FEATURE_USE_IBPB check in ib_prctl_set()
  x86/mm: Remove X86_FEATURE_USE_IBPB checks in cond_mitigation()
  x86/bugs: Move the X86_FEATURE_USE_IBPB check into callers
  x86/bugs: KVM: Add support for SRSO_MSR_FIX
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906174776c0eb539e4d65c54a8019d954a6fb35d