diff options
Diffstat (limited to 'hw')
-rw-r--r-- | hw/pci-bridge/pci_expander_bridge.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c index 70708ef156..57f8a3762b 100644 --- a/hw/pci-bridge/pci_expander_bridge.c +++ b/hw/pci-bridge/pci_expander_bridge.c @@ -43,6 +43,8 @@ typedef struct PXBDev { uint16_t numa_node; } PXBDev; +static GList *pxb_dev_list; + #define TYPE_PXB_HOST "pxb-host" static int pxb_bus_num(PCIBus *bus) @@ -89,12 +91,45 @@ static const char *pxb_host_root_bus_path(PCIHostState *host_bridge, return bus->bus_path; } +static char *pxb_host_ofw_unit_address(const SysBusDevice *dev) +{ + const PCIHostState *pxb_host; + const PCIBus *pxb_bus; + const PXBDev *pxb_dev; + int position; + const DeviceState *pxb_dev_base; + const PCIHostState *main_host; + const SysBusDevice *main_host_sbd; + + pxb_host = PCI_HOST_BRIDGE(dev); + pxb_bus = pxb_host->bus; + pxb_dev = PXB_DEV(pxb_bus->parent_dev); + position = g_list_index(pxb_dev_list, pxb_dev); + assert(position >= 0); + + pxb_dev_base = DEVICE(pxb_dev); + main_host = PCI_HOST_BRIDGE(pxb_dev_base->parent_bus->parent); + main_host_sbd = SYS_BUS_DEVICE(main_host); + + if (main_host_sbd->num_mmio > 0) { + return g_strdup_printf(TARGET_FMT_plx ",%x", + main_host_sbd->mmio[0].addr, position + 1); + } + if (main_host_sbd->num_pio > 0) { + return g_strdup_printf("i%04x,%x", + main_host_sbd->pio[0], position + 1); + } + return NULL; +} + static void pxb_host_class_init(ObjectClass *class, void *data) { DeviceClass *dc = DEVICE_CLASS(class); + SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(class); PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(class); dc->fw_name = "pci"; + sbc->explicit_ofw_unit_address = pxb_host_ofw_unit_address; hc->root_bus_path = pxb_host_root_bus_path; } @@ -149,6 +184,15 @@ static int pxb_map_irq_fn(PCIDevice *pci_dev, int pin) return pin - PCI_SLOT(pxb->devfn); } +static gint pxb_compare(gconstpointer a, gconstpointer b) +{ + const PXBDev *pxb_a = a, *pxb_b = b; + + return pxb_a->bus_nr < pxb_b->bus_nr ? -1 : + pxb_a->bus_nr > pxb_b->bus_nr ? 1 : + 0; +} + static int pxb_dev_initfn(PCIDevice *dev) { PXBDev *pxb = PXB_DEV(dev); @@ -192,9 +236,17 @@ static int pxb_dev_initfn(PCIDevice *dev) PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK); pci_config_set_class(dev->config, PCI_CLASS_BRIDGE_HOST); + pxb_dev_list = g_list_insert_sorted(pxb_dev_list, pxb, pxb_compare); return 0; } +static void pxb_dev_exitfn(PCIDevice *pci_dev) +{ + PXBDev *pxb = PXB_DEV(pci_dev); + + pxb_dev_list = g_list_remove(pxb_dev_list, pxb); +} + static Property pxb_dev_properties[] = { /* Note: 0 is not a legal a PXB bus number. */ DEFINE_PROP_UINT8("bus_nr", PXBDev, bus_nr, 0), @@ -208,6 +260,7 @@ static void pxb_dev_class_init(ObjectClass *klass, void *data) PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); k->init = pxb_dev_initfn; + k->exit = pxb_dev_exitfn; k->vendor_id = PCI_VENDOR_ID_REDHAT; k->device_id = PCI_DEVICE_ID_REDHAT_PXB; k->class_id = PCI_CLASS_BRIDGE_HOST; |