[v2,4/4] KVM: nSVM: mark vmcb as dirty when forcingly leaving the guest mode

Commit Message

Maxim Levitsky Jan. 7, 2021, 9:38 a.m. UTC

We overwrite most of vmcb fields while doing so, so we must
mark it as dirty.

Signed-off-by: Maxim Levitsky <[e-mail]>
---
 arch/x86/kvm/svm/nested.c | 1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index e91d40c8d8c91..c340fbad88566 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -760,6 +760,7 @@  void svm_leave_nested(struct vcpu_svm *svm)
 		leave_guest_mode(&svm->vcpu);
 		copy_vmcb_control_area(&vmcb->control, &hsave->control);
 		nested_svm_uninit_mmu_context(&svm->vcpu);
+		vmcb_mark_all_dirty(svm->vmcb);
 	}
 
 	kvm_clear_request(KVM_REQ_GET_NESTED_STATE_PAGES, &svm->vcpu);