[PATCH 1/4] KVM: x86: nSVM: leave nested mode on vCPU free

From: Maxim Levitsky
Date: Thu Oct 20 2022 - 05:31:36 EST


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>
---
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 58f0077d935799..958faa8807f52b 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1439,6 +1439,7 @@ 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);
--
2.26.3