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authorJoerg Roedel <joerg.roedel@amd.com>2010-04-22 12:33:08 +0200
committerAvi Kivity <avi@redhat.com>2010-05-17 12:19:18 +0300
commit2041a06a50a2ef4062c8454482aa06e25f6cccde (patch)
treefa40065df7293dc8057db6ba098256f3fd05dbfd /arch/x86/kvm
parent924584ccb08c338ebd2f40936ff2321c1cce6a6d (diff)
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>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/svm.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index ec205847be6..c480d7f64a6 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);