KVM: SVM: Make sure rip is synced to vmcb before nested vmexit

This patch fixes a bug where a nested guest always went over
the same instruction because the rip was not advanced on a
nested vmexit.

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

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index ec205847be6a..c480d7f64a60 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -2960,6 +2960,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
         u16 gs_selector;
         u16 ldt_selector;
 
+        svm->vmcb->save.rax = vcpu->arch.regs[VCPU_REGS_RAX];
+        svm->vmcb->save.rsp = vcpu->arch.regs[VCPU_REGS_RSP];
+        svm->vmcb->save.rip = vcpu->arch.regs[VCPU_REGS_RIP];
+
         /*
          * A vmexit emulation is required before the vcpu can be executed
          * again.
@@ -2967,10 +2971,6 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
         if (unlikely(svm->nested.exit_required))
                 return;
 
-        svm->vmcb->save.rax = vcpu->arch.regs[VCPU_REGS_RAX];
-        svm->vmcb->save.rsp = vcpu->arch.regs[VCPU_REGS_RSP];
-        svm->vmcb->save.rip = vcpu->arch.regs[VCPU_REGS_RIP];
-
         pre_svm_run(svm);
 
         sync_lapic_to_cr8(vcpu);