Re: [PATCH v2 1/9] KVM: x86: nSVM: leave nested mode on vCPU free

From: Liam Merwick
Date: Mon Nov 21 2022 - 11:31:14 EST


On 03/11/2022 14:13, Maxim Levitsky wrote:
If the VM was terminated while nested, we free the nested state
while the vCPU still is in nested mode.

Soon a warning will be added for this condition.

Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>

Reviewed-by: Liam Merwick <liam.merwick@xxxxxxxxxx>

---
arch/x86/kvm/svm/svm.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index d22a809d923339..e9cec1b692051c 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1440,6 +1440,7 @@ static void svm_vcpu_free(struct kvm_vcpu *vcpu)
*/
svm_clear_current_vmcb(svm->vmcb);
+ svm_leave_nested(vcpu);
svm_free_nested(svm);
sev_free_vcpu(vcpu);