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

From: Maxim Levitsky
Date: Thu Jan 07 2021 - 04:41:15 EST


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

Signed-off-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
---
arch/x86/kvm/svm/nested.c | 1 +
1 file changed, 1 insertion(+)

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);
--
2.26.2