KVM: arm64: vgic-its: Enable ITS emulation as a virtual MSI controller

Now that all ITS emulation functionality is in place, we advertise
MSI functionality to userland and also the ITS device to the guest - if
userland has configured that.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index a6ca326055cf..4e63a07b9001 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -163,6 +163,9 @@ struct vgic_dist {
         /* vGIC model the kernel emulates for the guest (GICv2 or GICv3) */
         u32                     vgic_model;
 
+        /* Do injected MSIs require an additional device ID? */
+        bool                    msis_require_devid;
+
         int                     nr_spis;
 
         /* TODO: Consider moving to global state */
@@ -308,4 +311,6 @@ static inline int kvm_vgic_get_max_vcpus(void)
         return kvm_vgic_global_state.max_gic_vcpus;
 }
 
+int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi);
+
 #endif /* __KVM_ARM_VGIC_H */