This supports PE_{MASK, UNMASK} hypercall. When PE_UNMASK is called,
KVM_REQ_SDEI request becomes pending if there are any events need
to be delivered.
Signed-off-by: Gavin Shan <gshan@xxxxxxxxxx>
---
arch/arm64/kvm/sdei.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/arch/arm64/kvm/sdei.c b/arch/arm64/kvm/sdei.c
index cea523418c75..6afa49b4f3c7 100644
--- a/arch/arm64/kvm/sdei.c
+++ b/arch/arm64/kvm/sdei.c
@@ -169,6 +169,21 @@ static unsigned long event_info(struct kvm_vcpu *vcpu)
return ret;
}
+static unsigned long pe_mask(struct kvm_vcpu *vcpu, bool mask)
+{
+ struct kvm_sdei_vcpu *vsdei = vcpu->arch.sdei;
+
+ if (mask) {
+ vcpu->arch.flags |= KVM_ARM64_SDEI_MASKED;
+ } else {
+ vcpu->arch.flags &= ~KVM_ARM64_SDEI_MASKED;
+ if (vsdei->pending)
+ kvm_make_request(KVM_REQ_SDEI, vcpu);
+ }
+
+ return SDEI_SUCCESS;
+}
+
int kvm_sdei_call(struct kvm_vcpu *vcpu)
{
struct kvm_sdei_vcpu *vsdei = vcpu->arch.sdei;
@@ -208,6 +223,12 @@ int kvm_sdei_call(struct kvm_vcpu *vcpu)
case SDEI_1_0_FN_SDEI_EVENT_GET_INFO:
ret = event_info(vcpu);
break;
+ case SDEI_1_0_FN_SDEI_PE_MASK:
+ ret = pe_mask(vcpu, true);
+ break;
+ case SDEI_1_0_FN_SDEI_PE_UNMASK:
+ ret = pe_mask(vcpu, false);
+ break;
default:
ret = SDEI_NOT_SUPPORTED;
}
--
2.23.0
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