diff options
| author | Andre Przywara <andre.przywara@arm.com> | 2015-03-26 15:39:35 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2015-03-26 22:43:15 +0100 |
| commit | a9cf86f62b785202684c3ba92895946f03d910c8 (patch) | |
| tree | 96f12c366cdb93c1c8336916bab305e6df18d489 /virt/kvm/arm | |
| parent | KVM: arm/arm64: implement kvm_io_bus MMIO handling for the VGIC (diff) | |
| download | linux-a9cf86f62b785202684c3ba92895946f03d910c8.tar.xz linux-a9cf86f62b785202684c3ba92895946f03d910c8.zip | |
KVM: arm/arm64: prepare GICv2 emulation to be handled by kvm_io_bus
Using the framework provided by the recent vgic.c changes we register
a kvm_io_bus device when initializing the virtual GICv2.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt/kvm/arm')
| -rw-r--r-- | virt/kvm/arm/vgic-v2-emul.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/virt/kvm/arm/vgic-v2-emul.c b/virt/kvm/arm/vgic-v2-emul.c index 1dd183ecf96f..7460b376d090 100644 --- a/virt/kvm/arm/vgic-v2-emul.c +++ b/virt/kvm/arm/vgic-v2-emul.c @@ -506,6 +506,7 @@ static bool vgic_v2_queue_sgi(struct kvm_vcpu *vcpu, int irq) static int vgic_v2_map_resources(struct kvm *kvm, const struct vgic_params *params) { + struct vgic_dist *dist = &kvm->arch.vgic; int ret = 0; if (!irqchip_in_kernel(kvm)) @@ -516,13 +517,17 @@ static int vgic_v2_map_resources(struct kvm *kvm, if (vgic_ready(kvm)) goto out; - if (IS_VGIC_ADDR_UNDEF(kvm->arch.vgic.vgic_dist_base) || - IS_VGIC_ADDR_UNDEF(kvm->arch.vgic.vgic_cpu_base)) { + if (IS_VGIC_ADDR_UNDEF(dist->vgic_dist_base) || + IS_VGIC_ADDR_UNDEF(dist->vgic_cpu_base)) { kvm_err("Need to set vgic cpu and dist addresses first\n"); ret = -ENXIO; goto out; } + vgic_register_kvm_io_dev(kvm, dist->vgic_dist_base, + KVM_VGIC_V2_DIST_SIZE, + vgic_dist_ranges, -1, &dist->dist_iodev); + /* * Initialize the vgic if this hasn't already been done on demand by * accessing the vgic state from userspace. @@ -530,18 +535,23 @@ static int vgic_v2_map_resources(struct kvm *kvm, ret = vgic_init(kvm); if (ret) { kvm_err("Unable to allocate maps\n"); - goto out; + goto out_unregister; } - ret = kvm_phys_addr_ioremap(kvm, kvm->arch.vgic.vgic_cpu_base, + ret = kvm_phys_addr_ioremap(kvm, dist->vgic_cpu_base, params->vcpu_base, KVM_VGIC_V2_CPU_SIZE, true); if (ret) { kvm_err("Unable to remap VGIC CPU to VCPU\n"); - goto out; + goto out_unregister; } - kvm->arch.vgic.ready = true; + dist->ready = true; + goto out; + +out_unregister: + kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS, &dist->dist_iodev.dev); + out: if (ret) kvm_vgic_destroy(kvm); |