C++ (Cpp) pci_bridge_region_init Examples

Example #1

File: pci_bridge.c Project: 3a9LL/panda

/* default qdev initialization function for PCI-to-PCI bridge */
int pci_bridge_initfn(PCIDevice *dev)
{
    PCIBus *parent = dev->bus;
    PCIBridge *br = DO_UPCAST(PCIBridge, dev, dev);
    PCIBus *sec_bus = &br->sec_bus;

    pci_set_word(dev->config + PCI_STATUS,
                 PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK);
    pci_config_set_class(dev->config, PCI_CLASS_BRIDGE_PCI);
    dev->config[PCI_HEADER_TYPE] =
        (dev->config[PCI_HEADER_TYPE] & PCI_HEADER_TYPE_MULTI_FUNCTION) |
        PCI_HEADER_TYPE_BRIDGE;
    pci_set_word(dev->config + PCI_SEC_STATUS,
                 PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK);

    qbus_create_inplace(&sec_bus->qbus, &pci_bus_info, &dev->qdev,
                        br->bus_name);
    sec_bus->parent_dev = dev;
    sec_bus->map_irq = br->map_irq;
    sec_bus->address_space_mem = &br->address_space_mem;
    memory_region_init(&br->address_space_mem, "pci_bridge_pci", INT64_MAX);
    sec_bus->address_space_io = &br->address_space_io;
    memory_region_init(&br->address_space_io, "pci_bridge_io", 65536);
    pci_bridge_region_init(br);
    QLIST_INIT(&sec_bus->child);
    QLIST_INSERT_HEAD(&parent->child, sec_bus, sibling);
    return 0;
}

Example #2

File: pci_bridge.c Project: 3a9LL/panda

static void pci_bridge_update_mappings(PCIBridge *br)
{
    /* Make updates atomic to: handle the case of one VCPU updating the bridge
     * while another accesses an unaffected region. */
    memory_region_transaction_begin();
    pci_bridge_region_cleanup(br);
    pci_bridge_region_init(br);
    memory_region_transaction_commit();
}

Example #3

File: pci_bridge.c Project: AsherBond/qemu

void pci_bridge_update_mappings(PCIBridge *br)
{
    PCIBridgeWindows *w = br->windows;

    /* Make updates atomic to: handle the case of one VCPU updating the bridge
     * while another accesses an unaffected region. */
    memory_region_transaction_begin();
    pci_bridge_region_del(br, br->windows);
    br->windows = pci_bridge_region_init(br);
    memory_region_transaction_commit();
    pci_bridge_region_cleanup(br, w);
}

Example #4

File: pci_bridge.c Project: D3cedut0/QEMU

/* default qdev initialization function for PCI-to-PCI bridge */
int pci_bridge_initfn(PCIDevice *dev)
{
    PCIBus *parent = dev->bus;
    PCIBridge *br = DO_UPCAST(PCIBridge, dev, dev);
    PCIBus *sec_bus = &br->sec_bus;

    pci_word_test_and_set_mask(dev->config + PCI_STATUS,
                               PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK);
    pci_config_set_class(dev->config, PCI_CLASS_BRIDGE_PCI);
    dev->config[PCI_HEADER_TYPE] =
        (dev->config[PCI_HEADER_TYPE] & PCI_HEADER_TYPE_MULTI_FUNCTION) |
        PCI_HEADER_TYPE_BRIDGE;
    pci_set_word(dev->config + PCI_SEC_STATUS,
                 PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK);

    /*
     * If we don't specify the name, the bus will be addressed as <id>.0, where
     * id is the device id.
     * Since PCI Bridge devices have a single bus each, we don't need the index:
     * let users address the bus using the device name.
     */
    if (!br->bus_name && dev->qdev.id && *dev->qdev.id) {
	    br->bus_name = dev->qdev.id;
    }

    qbus_create_inplace(&sec_bus->qbus, TYPE_PCI_BUS, &dev->qdev,
                        br->bus_name);
    sec_bus->parent_dev = dev;
    sec_bus->map_irq = br->map_irq;
    sec_bus->address_space_mem = &br->address_space_mem;
    memory_region_init(&br->address_space_mem, "pci_bridge_pci", INT64_MAX);
    sec_bus->address_space_io = &br->address_space_io;
    memory_region_init(&br->address_space_io, "pci_bridge_io", 65536);
    pci_bridge_region_init(br);
    QLIST_INIT(&sec_bus->child);
    QLIST_INSERT_HEAD(&parent->child, sec_bus, sibling);
    return 0;
}