예제 #1
0
static void kvm_arm_gicv3_reset(DeviceState *dev)
{
    GICv3State *s = ARM_GICV3_COMMON(dev);
    KVMARMGICv3Class *kgc = KVM_ARM_GICV3_GET_CLASS(s);

    DPRINTF("Reset\n");

    kgc->parent_reset(dev);
    kvm_arm_gicv3_put(s);
}
예제 #2
0
static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp)
{
    GICv3State *s = KVM_ARM_GICV3(dev);
    KVMARMGICv3Class *kgc = KVM_ARM_GICV3_GET_CLASS(s);
    Error *local_err = NULL;

    DPRINTF("kvm_arm_gicv3_realize\n");

    kgc->parent_realize(dev, &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        return;
    }

    if (s->security_extn) {
        error_setg(errp, "the in-kernel VGICv3 does not implement the "
                   "security extensions");
        return;
    }

    gicv3_init_irqs_and_mmio(s, kvm_arm_gicv3_set_irq, NULL);

    /* Try to create the device via the device control API */
    s->dev_fd = kvm_create_device(kvm_state, KVM_DEV_TYPE_ARM_VGIC_V3, false);
    if (s->dev_fd < 0) {
        error_setg_errno(errp, -s->dev_fd, "error creating in-kernel VGIC");
        return;
    }

    kvm_device_access(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_NR_IRQS,
                      0, &s->num_irq, true);

    /* Tell the kernel to complete VGIC initialization now */
    kvm_device_access(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
                      KVM_DEV_ARM_VGIC_CTRL_INIT, NULL, true);

    kvm_arm_register_device(&s->iomem_dist, -1, KVM_DEV_ARM_VGIC_GRP_ADDR,
                            KVM_VGIC_V3_ADDR_TYPE_DIST, s->dev_fd);
    kvm_arm_register_device(&s->iomem_redist, -1, KVM_DEV_ARM_VGIC_GRP_ADDR,
                            KVM_VGIC_V3_ADDR_TYPE_REDIST, s->dev_fd);
}
예제 #3
0
static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp)
{
    GICv3State *s = KVM_ARM_GICV3(dev);
    KVMARMGICv3Class *kgc = KVM_ARM_GICV3_GET_CLASS(s);
    Error *local_err = NULL;
    int i;

    DPRINTF("kvm_arm_gicv3_realize\n");

    kgc->parent_realize(dev, &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        return;
    }

    if (s->security_extn) {
        error_setg(errp, "the in-kernel VGICv3 does not implement the "
                   "security extensions");
        return;
    }

    gicv3_init_irqs_and_mmio(s, kvm_arm_gicv3_set_irq, NULL);

    /* Block migration of a KVM GICv3 device: the API for saving and restoring
     * the state in the kernel is not yet finalised in the kernel or
     * implemented in QEMU.
     */
    error_setg(&s->migration_blocker, "vGICv3 migration is not implemented");
    migrate_add_blocker(s->migration_blocker, &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        error_free(s->migration_blocker);
        return;
    }

    /* Try to create the device via the device control API */
    s->dev_fd = kvm_create_device(kvm_state, KVM_DEV_TYPE_ARM_VGIC_V3, false);
    if (s->dev_fd < 0) {
        error_setg_errno(errp, -s->dev_fd, "error creating in-kernel VGIC");
        return;
    }

    kvm_device_access(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_NR_IRQS,
                      0, &s->num_irq, true);

    /* Tell the kernel to complete VGIC initialization now */
    kvm_device_access(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
                      KVM_DEV_ARM_VGIC_CTRL_INIT, NULL, true);

    kvm_arm_register_device(&s->iomem_dist, -1, KVM_DEV_ARM_VGIC_GRP_ADDR,
                            KVM_VGIC_V3_ADDR_TYPE_DIST, s->dev_fd);
    kvm_arm_register_device(&s->iomem_redist, -1, KVM_DEV_ARM_VGIC_GRP_ADDR,
                            KVM_VGIC_V3_ADDR_TYPE_REDIST, s->dev_fd);

    if (kvm_has_gsi_routing()) {
        /* set up irq routing */
        kvm_init_irq_routing(kvm_state);
        for (i = 0; i < s->num_irq - GIC_INTERNAL; ++i) {
            kvm_irqchip_add_irq_route(kvm_state, i, 0, i);
        }

        kvm_gsi_routing_allowed = true;

        kvm_irqchip_commit_routes(kvm_state);
    }
}