linux-kernel - [PATCH v2 20/21] KVM: arm64: Export SDEI capability

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Date:   Tue,  9 Feb 2021 11:27:32 +0800
From:   Gavin Shan <gshan@...hat.com>
To:     kvmarm@...ts.cs.columbia.edu
Cc:     linux-kernel@...r.kernel.org, pbonzini@...hat.com, maz@...nel.org,
        james.morse@....com, Jonathan.Cameron@...wei.com,
        mark.rutland@....com, will@...nel.org, shan.gavin@...il.com
Subject: [PATCH v2 20/21] KVM: arm64: Export SDEI capability

The SDEI functionality is ready to be exported so far. This adds
new capability (KVM_CAP_ARM_SDEI) and exports it.

Signed-off-by: Gavin Shan <gshan@...hat.com>
---
 arch/arm64/kvm/arm.c     | 3 +++
 include/uapi/linux/kvm.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 55ccd234b0ec..f8b44a29e164 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -266,6 +266,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_ARM_PTRAUTH_GENERIC:
 		r = system_has_full_ptr_auth();
 		break;
+	case KVM_CAP_ARM_SDEI:
+		r = 1;
+		break;
 	default:
 		r = 0;
 	}
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index b056b4ac884b..133128d45fcb 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1058,6 +1058,7 @@ struct kvm_ppc_resize_hpt {
 #define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
 #define KVM_CAP_SYS_HYPERV_CPUID 191
 #define KVM_CAP_DIRTY_LOG_RING 192
+#define KVM_CAP_ARM_SDEI 193
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
-- 
2.23.0