[PATCH 21/23] KVM: arm64: Tighten msis_require_devid reporting

[Marc Zyngier]

Although it is safe for now, do condition the returning of
a msis_require_devid capability on the irqchip being a GICv3.

Signed-off-by: Marc Zyngier <maz at kernel.org>
---
 arch/arm64/kvm/arm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index d625904633c0..0d4c8de27d1e 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -195,7 +195,8 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 		if (!kvm)
 			r = -EINVAL;
 		else
-			r = kvm->arch.vgic.msis_require_devid;
+			r = (irqchip_is_gic_v3(kvm) &&
+			     kvm->arch.vgic.msis_require_devid);
 		break;
 	case KVM_CAP_ARM_USER_IRQ:
 		/*
-- 
2.27.0