From e7c48059248e013772d8da69351ac8b262d8fce2 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 27 Oct 2017 15:28:37 +0100 Subject: KVM: arm/arm64: GICv4: Add property field and per-VM predicate Add a new has_gicv4 field in the global VGIC state that indicates whether the HW is GICv4 capable, as a per-VM predicate indicating if there is a possibility for a VM to support direct injection (the above being true and the VM having an ITS). Reviewed-by: Christoffer Dall Reviewed-by: Eric Auger Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall --- virt/kvm/arm/vgic/vgic-mmio-v3.c | 5 +++++ virt/kvm/arm/vgic/vgic.h | 2 ++ 2 files changed, 7 insertions(+) (limited to 'virt') diff --git a/virt/kvm/arm/vgic/vgic-mmio-v3.c b/virt/kvm/arm/vgic/vgic-mmio-v3.c index 83786108829e..671fe81f8e1d 100644 --- a/virt/kvm/arm/vgic/vgic-mmio-v3.c +++ b/virt/kvm/arm/vgic/vgic-mmio-v3.c @@ -54,6 +54,11 @@ bool vgic_has_its(struct kvm *kvm) return dist->has_its; } +bool vgic_supports_direct_msis(struct kvm *kvm) +{ + return kvm_vgic_global_state.has_gicv4 && vgic_has_its(kvm); +} + static unsigned long vgic_mmio_read_v3_misc(struct kvm_vcpu *vcpu, gpa_t addr, unsigned int len) { diff --git a/virt/kvm/arm/vgic/vgic.h b/virt/kvm/arm/vgic/vgic.h index 0ac85045c0c7..67509b203cf5 100644 --- a/virt/kvm/arm/vgic/vgic.h +++ b/virt/kvm/arm/vgic/vgic.h @@ -241,4 +241,6 @@ int vgic_its_resolve_lpi(struct kvm *kvm, struct vgic_its *its, u32 devid, u32 eventid, struct vgic_irq **irq); struct vgic_its *vgic_msi_to_its(struct kvm *kvm, struct kvm_msi *msi); +bool vgic_supports_direct_msis(struct kvm *kvm); + #endif -- cgit v1.2.3-59-g8ed1b