Commit 977b2d03 authored Apr 18, 2011 by Joerg Roedel Committed by Avi Kivity May 11, 2011

KVM: SVM: Fix nested sel_cr0 intercept path with decode-assists



This patch fixes a bug in the nested-svm path when
decode-assists is available on the machine. After a
selective-cr0 intercept is detected the rip is advanced
unconditionally. This causes the l1-guest to continue
running with an l2-rip.
This bug was with the sel_cr0 unit-test on decode-assists
capable hardware.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

parent 0521e4c0

arch/x86/kvm/svm.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -2799,6 +2799,9 @@ static int cr_interception(struct vcpu_svm *svm)
		case 0:
		if (!check_selective_cr0_intercepted(svm, val))
		err = kvm_set_cr0(&svm->vcpu, val);
		else
		return 1;

		break;
		case 3:
		err = kvm_set_cr3(&svm->vcpu, val);

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