diff options
Diffstat (limited to 'hw/pci.c')
| -rw-r--r-- | hw/pci.c | 133 |
1 files changed, 40 insertions, 93 deletions
@@ -264,13 +264,15 @@ int pci_find_domain(const PCIBus *bus) void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent, const char *name, - MemoryRegion *address_space, + MemoryRegion *address_space_mem, + MemoryRegion *address_space_io, uint8_t devfn_min) { qbus_create_inplace(&bus->qbus, &pci_bus_info, parent, name); assert(PCI_FUNC(devfn_min) == 0); bus->devfn_min = devfn_min; - bus->address_space = address_space; + bus->address_space_mem = address_space_mem; + bus->address_space_io = address_space_io; /* host bridge */ QLIST_INIT(&bus->child); @@ -280,13 +282,16 @@ void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent, } PCIBus *pci_bus_new(DeviceState *parent, const char *name, - MemoryRegion *address_space, uint8_t devfn_min) + MemoryRegion *address_space_mem, + MemoryRegion *address_space_io, + uint8_t devfn_min) { PCIBus *bus; bus = qemu_mallocz(sizeof(*bus)); bus->qbus.qdev_allocated = 1; - pci_bus_new_inplace(bus, parent, name, address_space, devfn_min); + pci_bus_new_inplace(bus, parent, name, address_space_mem, + address_space_io, devfn_min); return bus; } @@ -315,12 +320,14 @@ void pci_bus_set_mem_base(PCIBus *bus, target_phys_addr_t base) PCIBus *pci_register_bus(DeviceState *parent, const char *name, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, void *irq_opaque, - MemoryRegion *address_space, + MemoryRegion *address_space_mem, + MemoryRegion *address_space_io, uint8_t devfn_min, int nirq) { PCIBus *bus; - bus = pci_bus_new(parent, name, address_space, devfn_min); + bus = pci_bus_new(parent, name, address_space_mem, + address_space_io, devfn_min); pci_bus_irqs(bus, set_irq, map_irq, irq_opaque, nirq); return bus; } @@ -841,19 +848,7 @@ static void pci_unregister_io_regions(PCIDevice *pci_dev) r = &pci_dev->io_regions[i]; if (!r->size || r->addr == PCI_BAR_UNMAPPED) continue; - if (r->type == PCI_BASE_ADDRESS_SPACE_IO) { - isa_unassign_ioport(r->addr, r->filtered_size); - } else { - if (r->memory) { - memory_region_del_subregion(pci_dev->bus->address_space, - r->memory); - } else { - cpu_register_physical_memory(pci_to_cpu_addr(pci_dev->bus, - r->addr), - r->filtered_size, - IO_MEM_UNASSIGNED); - } - } + memory_region_del_subregion(r->address_space, r->memory); } } @@ -876,12 +871,12 @@ static int pci_unregister_device(DeviceState *dev) } void pci_register_bar(PCIDevice *pci_dev, int region_num, - pcibus_t size, uint8_t type, - PCIMapIORegionFunc *map_func) + uint8_t type, MemoryRegion *memory) { PCIIORegion *r; uint32_t addr; uint64_t wmask; + pcibus_t size = memory_region_size(memory); assert(region_num >= 0); assert(region_num < PCI_NUM_REGIONS); @@ -896,8 +891,6 @@ void pci_register_bar(PCIDevice *pci_dev, int region_num, r->size = size; r->filtered_size = size; r->type = type; - r->map_func = map_func; - r->ram_addr = IO_MEM_UNASSIGNED; r->memory = NULL; wmask = ~(size - 1); @@ -915,41 +908,16 @@ void pci_register_bar(PCIDevice *pci_dev, int region_num, pci_set_long(pci_dev->wmask + addr, wmask & 0xffffffff); pci_set_long(pci_dev->cmask + addr, 0xffffffff); } + pci_dev->io_regions[region_num].memory = memory; + pci_dev->io_regions[region_num].address_space + = type & PCI_BASE_ADDRESS_SPACE_IO + ? pci_dev->bus->address_space_io + : pci_dev->bus->address_space_mem; } -static void pci_simple_bar_mapfunc(PCIDevice *pci_dev, int region_num, - pcibus_t addr, pcibus_t size, int type) -{ - cpu_register_physical_memory(addr, size, - pci_dev->io_regions[region_num].ram_addr); -} - -static void pci_simple_bar_mapfunc_region(PCIDevice *pci_dev, int region_num, - pcibus_t addr, pcibus_t size, - int type) -{ - memory_region_add_subregion_overlap(pci_dev->bus->address_space, - addr, - pci_dev->io_regions[region_num].memory, - 1); -} - -void pci_register_bar_simple(PCIDevice *pci_dev, int region_num, - pcibus_t size, uint8_t attr, ram_addr_t ram_addr) -{ - pci_register_bar(pci_dev, region_num, size, - PCI_BASE_ADDRESS_SPACE_MEMORY | attr, - pci_simple_bar_mapfunc); - pci_dev->io_regions[region_num].ram_addr = ram_addr; -} - -void pci_register_bar_region(PCIDevice *pci_dev, int region_num, - uint8_t attr, MemoryRegion *memory) +pcibus_t pci_get_bar_addr(PCIDevice *pci_dev, int region_num) { - pci_register_bar(pci_dev, region_num, memory_region_size(memory), - PCI_BASE_ADDRESS_SPACE_MEMORY | attr, - pci_simple_bar_mapfunc_region); - pci_dev->io_regions[region_num].memory = memory; + return pci_dev->io_regions[region_num].addr; } static void pci_bridge_filter(PCIDevice *d, pcibus_t *addr, pcibus_t *size, @@ -1079,28 +1047,7 @@ static void pci_update_mappings(PCIDevice *d) /* now do the real mapping */ if (r->addr != PCI_BAR_UNMAPPED) { - if (r->type & PCI_BASE_ADDRESS_SPACE_IO) { - int class; - /* NOTE: specific hack for IDE in PC case: - only one byte must be mapped. */ - class = pci_get_word(d->config + PCI_CLASS_DEVICE); - if (class == 0x0101 && r->size == 4) { - isa_unassign_ioport(r->addr + 2, 1); - } else { - isa_unassign_ioport(r->addr, r->filtered_size); - } - } else { - if (r->memory) { - memory_region_del_subregion(d->bus->address_space, - r->memory); - } else { - cpu_register_physical_memory(pci_to_cpu_addr(d->bus, - r->addr), - r->filtered_size, - IO_MEM_UNASSIGNED); - qemu_unregister_coalesced_mmio(r->addr, r->filtered_size); - } - } + memory_region_del_subregion(r->address_space, r->memory); } r->addr = new_addr; r->filtered_size = filtered_size; @@ -1113,10 +1060,16 @@ static void pci_update_mappings(PCIDevice *d) * addr & (size - 1) != 0. */ if (r->type & PCI_BASE_ADDRESS_SPACE_IO) { - r->map_func(d, i, r->addr, r->filtered_size, r->type); + memory_region_add_subregion_overlap(r->address_space, + r->addr, + r->memory, + 1); } else { - r->map_func(d, i, pci_to_cpu_addr(d->bus, r->addr), - r->filtered_size, r->type); + memory_region_add_subregion_overlap(r->address_space, + pci_to_cpu_addr(d->bus, + r->addr), + r->memory, + 1); } } } @@ -1858,11 +1811,6 @@ static uint8_t pci_find_capability_list(PCIDevice *pdev, uint8_t cap_id, return next; } -static void pci_map_option_rom(PCIDevice *pdev, int region_num, pcibus_t addr, pcibus_t size, int type) -{ - cpu_register_physical_memory(addr, size, pdev->rom_offset); -} - /* Patch the PCI vendor and device ids in a PCI rom image if necessary. This is needed for an option rom which is used for more than one device. */ static void pci_patch_ids(PCIDevice *pdev, uint8_t *ptr, int size) @@ -1966,9 +1914,9 @@ static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom) snprintf(name, sizeof(name), "%s.rom", pdev->qdev.info->vmsd->name); else snprintf(name, sizeof(name), "%s.rom", pdev->qdev.info->name); - pdev->rom_offset = qemu_ram_alloc(&pdev->qdev, name, size); - - ptr = qemu_get_ram_ptr(pdev->rom_offset); + pdev->has_rom = true; + memory_region_init_ram(&pdev->rom, &pdev->qdev, name, size); + ptr = memory_region_get_ram_ptr(&pdev->rom); load_image(path, ptr); qemu_free(path); @@ -1979,19 +1927,18 @@ static int pci_add_option_rom(PCIDevice *pdev, bool is_default_rom) qemu_put_ram_ptr(ptr); - pci_register_bar(pdev, PCI_ROM_SLOT, size, - 0, pci_map_option_rom); + pci_register_bar(pdev, PCI_ROM_SLOT, 0, &pdev->rom); return 0; } static void pci_del_option_rom(PCIDevice *pdev) { - if (!pdev->rom_offset) + if (!pdev->has_rom) return; - qemu_ram_free(pdev->rom_offset); - pdev->rom_offset = 0; + memory_region_destroy(&pdev->rom); + pdev->has_rom = false; } /* |