[RFC PATCH 6/9] KVM: SVM: Inject #HV into VMPL0 with Alternate Injection enabled

[Melody Wang <huibo.wang@amd.com>]

With Alternate Injection enabled, interrupts for VMPL1-3 are saved in
the doorbell page, and by using #HV injected into VMPL0. Then, the SVSM
at VMPL0 is run to inject them into the target VMPL of the guest.

Signed-off-by: Melody Wang <huibo.wang@amd.com>
---
 arch/x86/kvm/svm/sev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 543851bfb94d..40f55e7a78e3 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -5836,9 +5836,11 @@ bool sev_snp_ai_inject(struct kvm_vcpu *vcpu)
 	struct kvm_host_map hvdb_map;
 	struct hvdb *hvdb;
 	struct vcpu_svm *svm0;
+	struct vcpu_svm *svm;
 
 	vcpu_plane0 = vcpu->common->vcpus[0];
 	svm0 = to_svm(vcpu_plane0);
+	svm = to_svm(vcpu);
 
 	hvdb = map_hvdb(vcpu_plane0, &hvdb_map);
 	if (!hvdb)
@@ -5848,7 +5850,7 @@ bool sev_snp_ai_inject(struct kvm_vcpu *vcpu)
 		goto unmap;
 
 	prepare_hv_injection(svm0, hvdb);
-
+	__sev_snp_run_vmpl(svm, 0);
 unmap:
 	unmap_hvdb(vcpu_plane0, &hvdb_map);
 
-- 
2.43.0