linux/arch/x86/include
Linus Torvalds 4f8a3cc118 A set of three patches to fix the fallout of the newly added split lock
detection feature.
 
 It addressed the case where a KVM guest triggers a split lock #AC and KVM
 reinjects it into the guest which is not prepared to handle it.
 
 Adds proper sanity checks which prevent the unconditional injection into
 the guest and handles the #AC on the host side in the same way as user
 space detections are handled. Depending on the detection mode it either
 warns and disables detection for the task or kills the task if the mode is
 set to fatal.
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Merge tag 'x86-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "A set of three patches to fix the fallout of the newly added split
  lock detection feature.

  It addressed the case where a KVM guest triggers a split lock #AC and
  KVM reinjects it into the guest which is not prepared to handle it.

  Add proper sanity checks which prevent the unconditional injection
  into the guest and handles the #AC on the host side in the same way as
  user space detections are handled. Depending on the detection mode it
  either warns and disables detection for the task or kills the task if
  the mode is set to fatal"

* tag 'x86-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  KVM: VMX: Extend VMXs #AC interceptor to handle split lock #AC in guest
  KVM: x86: Emulate split-lock access as a write in emulator
  x86/split_lock: Provide handle_guest_split_lock()
2020-04-12 10:17:16 -07:00
..
asm A set of three patches to fix the fallout of the newly added split lock 2020-04-12 10:17:16 -07:00
uapi/asm KVM: nVMX: Emulate MTF when performing instruction emulation 2020-02-23 09:36:23 +01:00