diff options
| author |   Marc Zyngier <maz@kernel.org> | 2020-04-24 15:30:30 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-04-30 12:50:23 +0100 |
| commit | 958e8e14fd24c0aa1fe6a6beb2b985cb638577d6 (patch) | |
| tree | 79d1d0a2307a2459f4e2f419b74189784e4f7785 /virt/kvm/arm/vgic/vgic-mmio-v3.c | |
| parent | KVM: arm64: Save/restore sp_el0 as part of __guest_enter (diff) | |
| download | linux-dev-958e8e14fd24c0aa1fe6a6beb2b985cb638577d6.tar.xz linux-dev-958e8e14fd24c0aa1fe6a6beb2b985cb638577d6.zip | |
KVM: arm64: vgic-v4: Initialize GICv4.1 even in the absence of a virtual ITS
KVM now expects to be able to use HW-accelerated delivery of vSGIs
as soon as the guest has enabled thm. Unfortunately, we only
initialize the GICv4 context if we have a virtual ITS exposed to
the guest.
Fix it by always initializing the GICv4.1 context if it is
available on the host.
Fixes: 2291ff2f2a56 ("KVM: arm64: GICv4.1: Plumb SGI implementation selection in the distributor")
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'virt/kvm/arm/vgic/vgic-mmio-v3.c')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-mmio-v3.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/virt/kvm/arm/vgic/vgic-mmio-v3.c b/virt/kvm/arm/vgic/vgic-mmio-v3.c index 416613f2400c..89a14ec8b33b 100644 --- a/virt/kvm/arm/vgic/vgic-mmio-v3.c +++ b/virt/kvm/arm/vgic/vgic-mmio-v3.c @@ -50,7 +50,8 @@ bool vgic_has_its(struct kvm *kvm) bool vgic_supports_direct_msis(struct kvm *kvm) { - return kvm_vgic_global_state.has_gicv4 && vgic_has_its(kvm); + return (kvm_vgic_global_state.has_gicv4_1 || + (kvm_vgic_global_state.has_gicv4 && vgic_has_its(kvm))); } /* |