[PATCH v3 44/59] KVM: arm/arm64: GICv4: Handle MOVI applied to a VLPI
From: Marc Zyngier <hidden>
Date: 2017-07-31 17:33:54
Also in:
kvm, kvmarm, lkml
Subsystem:
kernel virtual machine (kvm), the rest · Maintainers:
Paolo Bonzini, Linus Torvalds
When the guest issues a MOVI, we need to tell the physical ITS that we're now targetting a new vcpu. This is done by extracting the current mapping, updating the target, and reapplying the mapping. The core ITS code should do the right thing. Signed-off-by: Marc Zyngier <redacted> --- virt/kvm/arm/vgic/vgic-its.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index 79bac93d3e7d..aaad577ce328 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c@@ -706,6 +706,19 @@ static int vgic_its_cmd_handle_movi(struct kvm *kvm, struct vgic_its *its, ite->irq->target_vcpu = vcpu; spin_unlock(&ite->irq->irq_lock); + if (ite->irq->hw) { + struct its_vlpi_map map; + int ret; + + ret = its_get_vlpi(ite->irq->host_irq, &map); + if (ret) + return ret; + + map.vpe_idx = vcpu->vcpu_id; + + return its_map_vlpi(ite->irq->host_irq, &map); + } + return 0; }
--
2.11.0