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Commit 25391454 authored by Gleb Natapov's avatar Gleb Natapov Committed by Marcelo Tosatti
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KVM: VMX: don't clobber segment AR of unusable segments. 



Usability is returned in unusable field, so not need to clobber entire
AR. Callers have to know how to deal with unusable segments already
since if emulate_invalid_guest_state=true AR is not zeroed.

Signed-off-by: default avatarGleb Natapov <gleb@redhat.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 218e763f

arch/x86/kvm/vmx.c

+0 −2
Original line number Original line Diff line number Diff line
@@ -3196,8 +3196,6 @@ static void vmx_get_segment(struct kvm_vcpu *vcpu, 
	var->limit = vmx_read_guest_seg_limit(vmx, seg);

	var->limit = vmx_read_guest_seg_limit(vmx, seg);

	var->selector = vmx_read_guest_seg_selector(vmx, seg);

	var->selector = vmx_read_guest_seg_selector(vmx, seg);

	ar = vmx_read_guest_seg_ar(vmx, seg);

	ar = vmx_read_guest_seg_ar(vmx, seg);

	if ((ar & AR_UNUSABLE_MASK) && !emulate_invalid_guest_state)

		ar = 0;

	var->type = ar & 15;

	var->type = ar & 15;

	var->s = (ar >> 4) & 1;

	var->s = (ar >> 4) & 1;

	var->dpl = (ar >> 5) & 3;

	var->dpl = (ar >> 5) & 3;