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 <[email protected]> --- --- virt/kvm/arm/vgic/vgic_init.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/virt/kvm/arm/vgic/vgic_init.c b/virt/kvm/arm/vgic/vgic_init.c index e4459e3..041443b 100644 --- a/virt/kvm/arm/vgic/vgic_init.c +++ b/virt/kvm/arm/vgic/vgic_init.c @@ -261,6 +261,10 @@ int vgic_init(struct kvm *kvm) kvm_for_each_vcpu(i, vcpu, kvm) kvm_vgic_vcpu_init(vcpu); + ret = kvm_setup_default_irq_routing(kvm); + if (ret) + goto out; + dist->initialized = true; out: return ret; @@ -454,3 +458,23 @@ out_free_irq: kvm_get_running_vcpus()); return ret; } + +int kvm_setup_default_irq_routing(struct kvm *kvm) +{ + struct kvm_irq_routing_entry *entries; + struct vgic_dist *dist = &kvm->arch.vgic; + u32 nr = dist->nr_spis; + 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; +} -- 1.9.1 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
