[PATCH 0/2] KVM: nVMX: fix nested APICv emulation for windows guests

[Maxim Levitsky]

Fix two problems that were recently discovered that cause nested APICv
to malfunction on windows with hyperv enabled.

The first problem is that unlike KVM, windows doesn't set PIR.ON when
sending posted interrupts. X86 spec actually allows this.

The second problem is that unlilke KVM, which mostly ignores them,
windows depends on accurate delivery of the posted notification
interrupts, even when those miss the guest.

Best regards,
	Maxim Levitsky

Maxim Levitsky (2):
  KVM: nVMX: don't check PIR.ON when processing nested posted interrupts
  KVM: nVMX: avoid losing the posted notification interrupt when exiting
    L2

 arch/x86/kvm/vmx/nested.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

-- 
2.54.0