KVM: x86: Clear CR2 on VCPU reset

CR2 is not cleared as it should after reset.  See Intel SDM table named "IA-32
Processor States Following Power-up, Reset, or INIT".

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Message-Id: <1427933438-12782-5-git-send-email-namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ad3809df7d0a..faf044dba60c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7123,6 +7123,8 @@ void kvm_vcpu_reset(struct kvm_vcpu *vcpu)
         vcpu->arch.dr7 = DR7_FIXED_1;
         kvm_update_dr7(vcpu);
 
+        vcpu->arch.cr2 = 0;
+
         kvm_make_request(KVM_REQ_EVENT, vcpu);
         vcpu->arch.apf.msr_val = 0;
         vcpu->arch.st.msr_val = 0;