diff options
Diffstat (limited to 'qemu/hw/intc/openpic_kvm.c')
| -rw-r--r-- | qemu/hw/intc/openpic_kvm.c | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/qemu/hw/intc/openpic_kvm.c b/qemu/hw/intc/openpic_kvm.c deleted file mode 100644 index e47e94f2c..000000000 --- a/qemu/hw/intc/openpic_kvm.c +++ /dev/null @@ -1,296 +0,0 @@ -/* - * KVM in-kernel OpenPIC - * - * Copyright 2013 Freescale Semiconductor, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include <sys/ioctl.h> -#include "exec/address-spaces.h" -#include "hw/hw.h" -#include "hw/ppc/openpic.h" -#include "hw/pci/msi.h" -#include "hw/sysbus.h" -#include "sysemu/kvm.h" -#include "qemu/log.h" - -#define GCR_RESET 0x80000000 - -#define KVM_OPENPIC(obj) \ - OBJECT_CHECK(KVMOpenPICState, (obj), TYPE_KVM_OPENPIC) - -typedef struct KVMOpenPICState { - /*< private >*/ - SysBusDevice parent_obj; - /*< public >*/ - - MemoryRegion mem; - MemoryListener mem_listener; - uint32_t fd; - uint32_t model; - hwaddr mapped; -} KVMOpenPICState; - -static void kvm_openpic_set_irq(void *opaque, int n_IRQ, int level) -{ - kvm_set_irq(kvm_state, n_IRQ, level); -} - -static void kvm_openpic_write(void *opaque, hwaddr addr, uint64_t val, - unsigned size) -{ - KVMOpenPICState *opp = opaque; - struct kvm_device_attr attr; - uint32_t val32 = val; - int ret; - - attr.group = KVM_DEV_MPIC_GRP_REGISTER; - attr.attr = addr; - attr.addr = (uint64_t)(unsigned long)&val32; - - ret = ioctl(opp->fd, KVM_SET_DEVICE_ATTR, &attr); - if (ret < 0) { - qemu_log_mask(LOG_UNIMP, "%s: %s %" PRIx64 "\n", __func__, - strerror(errno), attr.attr); - } -} - -static void kvm_openpic_reset(DeviceState *d) -{ - KVMOpenPICState *opp = KVM_OPENPIC(d); - - /* Trigger the GCR.RESET bit to reset the PIC */ - kvm_openpic_write(opp, 0x1020, GCR_RESET, sizeof(uint32_t)); -} - -static uint64_t kvm_openpic_read(void *opaque, hwaddr addr, unsigned size) -{ - KVMOpenPICState *opp = opaque; - struct kvm_device_attr attr; - uint32_t val = 0xdeadbeef; - int ret; - - attr.group = KVM_DEV_MPIC_GRP_REGISTER; - attr.attr = addr; - attr.addr = (uint64_t)(unsigned long)&val; - - ret = ioctl(opp->fd, KVM_GET_DEVICE_ATTR, &attr); - if (ret < 0) { - qemu_log_mask(LOG_UNIMP, "%s: %s %" PRIx64 "\n", __func__, - strerror(errno), attr.attr); - return 0; - } - - return val; -} - -static const MemoryRegionOps kvm_openpic_mem_ops = { - .write = kvm_openpic_write, - .read = kvm_openpic_read, - .endianness = DEVICE_BIG_ENDIAN, - .impl = { - .min_access_size = 4, - .max_access_size = 4, - }, -}; - -static void kvm_openpic_region_add(MemoryListener *listener, - MemoryRegionSection *section) -{ - KVMOpenPICState *opp = container_of(listener, KVMOpenPICState, - mem_listener); - struct kvm_device_attr attr; - uint64_t reg_base; - int ret; - - if (section->address_space != &address_space_memory) { - abort(); - } - - /* Ignore events on regions that are not us */ - if (section->mr != &opp->mem) { - return; - } - - if (opp->mapped) { - /* - * We can only map the MPIC once. Since we are already mapped, - * the best we can do is ignore new maps. - */ - return; - } - - reg_base = section->offset_within_address_space; - opp->mapped = reg_base; - - attr.group = KVM_DEV_MPIC_GRP_MISC; - attr.attr = KVM_DEV_MPIC_BASE_ADDR; - attr.addr = (uint64_t)(unsigned long)®_base; - - ret = ioctl(opp->fd, KVM_SET_DEVICE_ATTR, &attr); - if (ret < 0) { - fprintf(stderr, "%s: %s %" PRIx64 "\n", __func__, - strerror(errno), reg_base); - } -} - -static void kvm_openpic_region_del(MemoryListener *listener, - MemoryRegionSection *section) -{ - KVMOpenPICState *opp = container_of(listener, KVMOpenPICState, - mem_listener); - struct kvm_device_attr attr; - uint64_t reg_base = 0; - int ret; - - /* Ignore events on regions that are not us */ - if (section->mr != &opp->mem) { - return; - } - - if (section->offset_within_address_space != opp->mapped) { - /* - * We can only map the MPIC once. This mapping was a secondary - * one that we couldn't fulfill. Ignore it. - */ - return; - } - opp->mapped = 0; - - attr.group = KVM_DEV_MPIC_GRP_MISC; - attr.attr = KVM_DEV_MPIC_BASE_ADDR; - attr.addr = (uint64_t)(unsigned long)®_base; - - ret = ioctl(opp->fd, KVM_SET_DEVICE_ATTR, &attr); - if (ret < 0) { - fprintf(stderr, "%s: %s %" PRIx64 "\n", __func__, - strerror(errno), reg_base); - } -} - -static void kvm_openpic_init(Object *obj) -{ - KVMOpenPICState *opp = KVM_OPENPIC(obj); - - memory_region_init_io(&opp->mem, OBJECT(opp), &kvm_openpic_mem_ops, opp, - "kvm-openpic", 0x40000); -} - -static void kvm_openpic_realize(DeviceState *dev, Error **errp) -{ - SysBusDevice *d = SYS_BUS_DEVICE(dev); - KVMOpenPICState *opp = KVM_OPENPIC(dev); - KVMState *s = kvm_state; - int kvm_openpic_model; - struct kvm_create_device cd = {0}; - int ret, i; - - if (!kvm_check_extension(s, KVM_CAP_DEVICE_CTRL)) { - error_setg(errp, "Kernel is lacking Device Control API"); - return; - } - - switch (opp->model) { - case OPENPIC_MODEL_FSL_MPIC_20: - kvm_openpic_model = KVM_DEV_TYPE_FSL_MPIC_20; - break; - - case OPENPIC_MODEL_FSL_MPIC_42: - kvm_openpic_model = KVM_DEV_TYPE_FSL_MPIC_42; - break; - - default: - error_setg(errp, "Unsupported OpenPIC model %" PRIu32, opp->model); - return; - } - - cd.type = kvm_openpic_model; - ret = kvm_vm_ioctl(s, KVM_CREATE_DEVICE, &cd); - if (ret < 0) { - error_setg(errp, "Can't create device %d: %s", - cd.type, strerror(errno)); - return; - } - opp->fd = cd.fd; - - sysbus_init_mmio(d, &opp->mem); - qdev_init_gpio_in(dev, kvm_openpic_set_irq, OPENPIC_MAX_IRQ); - - opp->mem_listener.region_add = kvm_openpic_region_add; - opp->mem_listener.region_del = kvm_openpic_region_del; - memory_listener_register(&opp->mem_listener, &address_space_memory); - - /* indicate pic capabilities */ - msi_nonbroken = true; - kvm_kernel_irqchip = true; - kvm_async_interrupts_allowed = true; - - /* set up irq routing */ - kvm_init_irq_routing(kvm_state); - for (i = 0; i < 256; ++i) { - kvm_irqchip_add_irq_route(kvm_state, i, 0, i); - } - - kvm_msi_via_irqfd_allowed = true; - kvm_gsi_routing_allowed = true; - - kvm_irqchip_commit_routes(s); -} - -int kvm_openpic_connect_vcpu(DeviceState *d, CPUState *cs) -{ - KVMOpenPICState *opp = KVM_OPENPIC(d); - - return kvm_vcpu_enable_cap(cs, KVM_CAP_IRQ_MPIC, 0, opp->fd, - kvm_arch_vcpu_id(cs)); -} - -static Property kvm_openpic_properties[] = { - DEFINE_PROP_UINT32("model", KVMOpenPICState, model, - OPENPIC_MODEL_FSL_MPIC_20), - DEFINE_PROP_END_OF_LIST(), -}; - -static void kvm_openpic_class_init(ObjectClass *oc, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(oc); - - dc->realize = kvm_openpic_realize; - dc->props = kvm_openpic_properties; - dc->reset = kvm_openpic_reset; - set_bit(DEVICE_CATEGORY_MISC, dc->categories); -} - -static const TypeInfo kvm_openpic_info = { - .name = TYPE_KVM_OPENPIC, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(KVMOpenPICState), - .instance_init = kvm_openpic_init, - .class_init = kvm_openpic_class_init, -}; - -static void kvm_openpic_register_types(void) -{ - type_register_static(&kvm_openpic_info); -} - -type_init(kvm_openpic_register_types) |