From: Eric Auger eric.auger@linaro.org
Implement a default routing table made of flat irqchip routing entries (gsi = irqchip.pin) covering the VGIC SPI indexes. This routing table is overwritten by the first user-space call to KVM_SET_GSI_ROUTING ioctl.
Signed-off-by: Eric Auger eric.auger@linaro.org
---
PATCH: creation Signed-off-by: Vadim Lomovtsev Vadim.Lomovtsev@caviumnetworks.com --- virt/kvm/arm/vgic.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index e38a0de..12391a9 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1785,6 +1785,8 @@ int vgic_init(struct kvm *kvm) ret |= vgic_init_bitmap(&dist->irq_cfg, nr_cpus, nr_irqs); ret |= vgic_init_bytemap(&dist->irq_priority, nr_cpus, nr_irqs);
+ ret |= kvm_setup_default_irq_routing(kvm); + if (ret) goto out;
@@ -2258,6 +2260,25 @@ out: return r; }
+int kvm_setup_default_irq_routing(struct kvm *kvm) +{ + struct kvm_irq_routing_entry *entries; + u32 nr = kvm->arch.vgic.nr_irqs - VGIC_NR_PRIVATE_IRQS; + int i, ret; + + entries = kcalloc(nr, sizeof(struct kvm_kernel_irq_routing_entry), + GFP_KERNEL); + for (i = 0; i < nr; i++) { + entries[i].gsi = i; + entries[i].type = KVM_IRQ_ROUTING_IRQCHIP; + entries[i].u.irqchip.irqchip = 0; + entries[i].u.irqchip.pin = i; + } + ret = kvm_set_irq_routing(kvm, entries, nr, 0); + kfree(entries); + return ret; +} + int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e, struct kvm *kvm, int irq_source_id, int level, bool line_status)