diff options
Diffstat (limited to 'hw/pci.c')
| -rw-r--r-- | hw/pci.c | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/hw/pci.c b/hw/pci.c index 8d84651f19..f084cc0285 100644 --- a/hw/pci.c +++ b/hw/pci.c @@ -200,6 +200,26 @@ PCIBus *pci_find_root_bus(int domain) return NULL; } +int pci_find_domain(const PCIBus *bus) +{ + PCIDevice *d; + struct PCIHostBus *host; + + /* obtain root bus */ + while ((d = bus->parent_dev) != NULL) { + bus = d->bus; + } + + QLIST_FOREACH(host, &host_buses, next) { + if (host->bus == bus) { + return host->domain; + } + } + + abort(); /* should not be reached */ + return -1; +} + void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent, const char *name, int devfn_min) { @@ -419,14 +439,12 @@ int pci_device_load(PCIDevice *s, QEMUFile *f) return ret; } -static int pci_set_default_subsystem_id(PCIDevice *pci_dev) +static void pci_set_default_subsystem_id(PCIDevice *pci_dev) { - uint16_t *id; - - id = (void*)(&pci_dev->config[PCI_SUBSYSTEM_VENDOR_ID]); - id[0] = cpu_to_le16(pci_default_sub_vendor_id); - id[1] = cpu_to_le16(pci_default_sub_device_id); - return 0; + pci_set_word(pci_dev->config + PCI_SUBSYSTEM_VENDOR_ID, + pci_default_sub_vendor_id); + pci_set_word(pci_dev->config + PCI_SUBSYSTEM_ID, + pci_default_sub_device_id); } /* @@ -507,7 +525,7 @@ PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr) } *devfnp = slot << 3; - return pci_find_bus(pci_find_root_bus(0), bus); + return pci_find_bus(pci_find_root_bus(dom), bus); } static void pci_init_cmask(PCIDevice *dev) |