[PATCH v2 0/6] KVM: x86: Fix emulated MOV DR{4,5} #GP bugs

Sean Christopherson posted 6 patches 4 days, 9 hours ago
arch/x86/kvm/emulate.c | 36 +++++++++++++++++++++++++++---------
1 file changed, 27 insertions(+), 9 deletions(-)
[PATCH v2 0/6] KVM: x86: Fix emulated MOV DR{4,5} #GP bugs
Posted by Sean Christopherson 4 days, 9 hours ago
Carlos' fix for a bug where KVM fails to signal #GP on emulated MOV DR to
DR4 or DR5, plus follow-up fixes priority goofs (#GP vs #DB, and #GP versus
#VMEXIT on SVM).  The rest are opportunistic cleanups.

v1: https://lore.kernel.org/all/20260601133320.91479-2-clopez@suse.de

Carlos López (1):
  KVM: x86: Treat any non-zero return from set_dr() as a faulting
    condition

Sean Christopherson (5):
  KVM: x86: Prioritize DR7.GD #DB over #GP due to illegal DR6/7 value
  KVM: x86: Manually check DR4/5 write values to fix SVM intercept
    priority
  KVM: x86: Use kvm_dr{6,7}_valid() to check DR{4,5,6,7} write values in
    emulator
  KVM: x86: WARN if MOV DR emulation hits a "too late" #GP
  KVM: x86: Read CR4.DE in emulator if and only if accessing DR4 or DR5

 arch/x86/kvm/emulate.c | 36 +++++++++++++++++++++++++++---------
 1 file changed, 27 insertions(+), 9 deletions(-)


base-commit: d4bfaa66fa171089b9b9fb2dc17af9245f2b9b34
-- 
2.54.0.1032.g2f8565e1d1-goog