From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
... to make it more obvious that sync_vmcs12() is invoked on all nested
VM-Exits, e.g. hiding sync_vmcs12() in prepare_vmcs12() makes it appear
that guest state is NOT propagated to vmcs12 for a normal VM-Exit.
Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
---
arch/x86/kvm/vmx/nested.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 376fd9eabe42..bdaf49d9260f 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -3500,11 +3500,7 @@ static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
u32 exit_reason, u32 exit_intr_info,
unsigned long exit_qualification)
{
- /* update guest state fields: */
- sync_vmcs12(vcpu, vmcs12);
-
/* update exit information fields: */
-
vmcs12->vm_exit_reason = exit_reason;
vmcs12->exit_qualification = exit_qualification;
vmcs12->vm_exit_intr_info = exit_intr_info;
@@ -3865,9 +3861,9 @@ void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
vcpu->arch.tsc_offset -= vmcs12->tsc_offset;
if (likely(!vmx->fail)) {
- if (exit_reason == -1)
- sync_vmcs12(vcpu, vmcs12);
- else
+ sync_vmcs12(vcpu, vmcs12);
+
+ if (exit_reason != -1)
prepare_vmcs12(vcpu, vmcs12, exit_reason, exit_intr_info,
exit_qualification);
--
1.8.3.1
