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authorMaxim Levitsky2021-05-03 15:54:44 +0300
committerPaolo Bonzini2021-05-03 11:25:38 -0400
commit9d290e16432cacd448475d38dec2753b75b9665f (patch)
tree6b8e63f46754273a9c060c23687751fd6c2bbcb4
parentc74ad08f3333db2e44d3346b863f6d10d35e37dd (diff)
KVM: nSVM: leave the guest mode prior to loading a nested state
This allows the KVM to load the nested state more than once without warnings. Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20210503125446.1353307-4-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--arch/x86/kvm/svm/nested.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index a88c64e004c3..32400cba608d 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -1309,12 +1309,15 @@ static int svm_set_nested_state(struct kvm_vcpu *vcpu,
* L2 registers if needed are moved from the current VMCB to VMCB02.
*/
+ if (is_guest_mode(vcpu))
+ svm_leave_nested(svm);
+ else
+ svm->nested.vmcb02.ptr->save = svm->vmcb01.ptr->save;
+
svm->nested.nested_run_pending =
!!(kvm_state->flags & KVM_STATE_NESTED_RUN_PENDING);
svm->nested.vmcb12_gpa = kvm_state->hdr.svm.vmcb_pa;
- if (svm->current_vmcb == &svm->vmcb01)
- svm->nested.vmcb02.ptr->save = svm->vmcb01.ptr->save;
svm->vmcb01.ptr->save.es = save->es;
svm->vmcb01.ptr->save.cs = save->cs;