diff options
Diffstat (limited to 'hw/pci.c')
| -rw-r--r-- | hw/pci.c | 47 |
1 files changed, 42 insertions, 5 deletions
@@ -196,6 +196,48 @@ PCIDevice *pci_register_device(PCIBus *bus, const char *name, return pci_dev; } +static target_phys_addr_t pci_to_cpu_addr(target_phys_addr_t addr) +{ + return addr + pci_mem_base; +} + +static void pci_unregister_io_regions(PCIDevice *pci_dev) +{ + PCIIORegion *r; + int i; + + for(i = 0; i < PCI_NUM_REGIONS; i++) { + r = &pci_dev->io_regions[i]; + if (!r->size || r->addr == -1) + continue; + if (r->type == PCI_ADDRESS_SPACE_IO) { + isa_unassign_ioport(r->addr, r->size); + } else { + cpu_register_physical_memory(pci_to_cpu_addr(r->addr), + r->size, + IO_MEM_UNASSIGNED); + } + } +} + +int pci_unregister_device(PCIDevice *pci_dev) +{ + int ret = 0; + + if (pci_dev->unregister) + ret = pci_dev->unregister(pci_dev); + if (ret) + return ret; + + pci_unregister_io_regions(pci_dev); + + qemu_free_irqs(pci_dev->irq); + pci_irq_index--; + pci_dev->bus->devices[pci_dev->devfn] = NULL; + qemu_free(pci_dev); + return 0; +} + void pci_register_io_region(PCIDevice *pci_dev, int region_num, uint32_t size, int type, PCIMapIORegionFunc *map_func) @@ -218,11 +260,6 @@ void pci_register_io_region(PCIDevice *pci_dev, int region_num, *(uint32_t *)(pci_dev->config + addr) = cpu_to_le32(type); } -static target_phys_addr_t pci_to_cpu_addr(target_phys_addr_t addr) -{ - return addr + pci_mem_base; -} - static void pci_update_mappings(PCIDevice *d) { PCIIORegion *r; |