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| author | Christoffer Dall <christoffer.dall@arm.com> | 2018-07-16 15:06:22 +0200 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-07-21 16:02:26 +0100 |
| commit | 87322099052b6a534cecd3d303fc097d4560b7d0 (patch) | |
| tree | 880ea15f8483cde93928f0836e7f7407e11b08e1 /virt | |
| parent | 8df3c8f33f46adbaa811c0d57fb1d7eb421b88a9 (diff) | |
| download | linux-stable-87322099052b6a534cecd3d303fc097d4560b7d0.tar.gz linux-stable-87322099052b6a534cecd3d303fc097d4560b7d0.tar.bz2 linux-stable-87322099052b6a534cecd3d303fc097d4560b7d0.zip | |
KVM: arm/arm64: vgic: Signal IRQs using their configured group
Now when we have a group configuration on the struct IRQ, use this state
when populating the LR and signaling interrupts as either group 0 or
group 1 to the VM. Depending on the model of the emulated GIC, and the
guest's configuration of the VMCR, interrupts may be signaled as IRQs or
FIQs to the VM.
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-v2.c | 3 | ||||
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-v3.c | 6 |
2 files changed, 4 insertions, 5 deletions
diff --git a/virt/kvm/arm/vgic/vgic-v2.c b/virt/kvm/arm/vgic/vgic-v2.c index a5f2e44f1c33..df5e6a6e3186 100644 --- a/virt/kvm/arm/vgic/vgic-v2.c +++ b/virt/kvm/arm/vgic/vgic-v2.c @@ -159,6 +159,9 @@ void vgic_v2_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr) } } + if (irq->group) + val |= GICH_LR_GROUP1; + if (irq->hw) { val |= GICH_LR_HW; val |= irq->hwintid << GICH_LR_PHYSID_CPUID_SHIFT; diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c index cdce653e3c47..530b8491c892 100644 --- a/virt/kvm/arm/vgic/vgic-v3.c +++ b/virt/kvm/arm/vgic/vgic-v3.c @@ -197,11 +197,7 @@ void vgic_v3_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr) if (vgic_irq_is_mapped_level(irq) && (val & ICH_LR_PENDING_BIT)) irq->line_level = false; - /* - * We currently only support Group1 interrupts, which is a - * known defect. This needs to be addressed at some point. - */ - if (model == KVM_DEV_TYPE_ARM_VGIC_V3) + if (irq->group) val |= ICH_LR_GROUP; val |= (u64)irq->priority << ICH_LR_PRIORITY_SHIFT; |