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[v2,1/2] KVM: nSVM: always restore the L1's GIF on migration

Message ID 20210504143936.1644378-2-mlevitsk@redhat.com (mailing list archive)
State New, archived
Headers show
Series KVM: nSVM: few fixes for the nested migration | expand

Commit Message

Maxim Levitsky May 4, 2021, 2:39 p.m. UTC
While usually the L1's GIF is set while L2 runs, and usually
migration nested state is loaded after a vCPU reset which
also sets L1's GIF to true, this is not guaranteed.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
 arch/x86/kvm/svm/nested.c | 2 ++
 1 file changed, 2 insertions(+)
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diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 32400cba608d..b331446f67f3 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -1314,6 +1314,8 @@  static int svm_set_nested_state(struct kvm_vcpu *vcpu,
 		svm->nested.vmcb02.ptr->save = svm->vmcb01.ptr->save;
+	svm_set_gif(svm, !!(kvm_state->flags & KVM_STATE_NESTED_GIF_SET));
 	svm->nested.nested_run_pending =
 		!!(kvm_state->flags & KVM_STATE_NESTED_RUN_PENDING);