Implement a pci host bridge specific to passthrough. Actually this just inherits the standard one.
Signed-off-by: Tiejun Chen <tiejun.c...@intel.com> --- hw/pci-host/piix.c | 16 ++++++++++++++++ include/hw/i386/pc.h | 2 ++ 2 files changed, 18 insertions(+) diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c index adc5025..1468961 100644 --- a/hw/pci-host/piix.c +++ b/hw/pci-host/piix.c @@ -729,6 +729,21 @@ static const TypeInfo i440fx_info = { .class_init = i440fx_class_init, }; +static void xen_igd_passthrough_i440fx_class_init(ObjectClass *klass, + void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->desc = "IGD PT XEN Host bridge"; +} + +static const TypeInfo xen_igd_passthrough_i440fx_info = { + .name = TYPE_XEN_IGD_PASSTHROUGH_I440FX_PCI_DEVICE, + .parent = TYPE_I440FX_PCI_DEVICE, + .instance_size = sizeof(PCII440FXState), + .class_init = xen_igd_passthrough_i440fx_class_init, +}; + static const char *i440fx_pcihost_root_bus_path(PCIHostState *host_bridge, PCIBus *rootbus) { @@ -770,6 +785,7 @@ static const TypeInfo i440fx_pcihost_info = { static void i440fx_register_types(void) { type_register_static(&i440fx_info); + type_register_static(&xen_igd_passthrough_i440fx_info); type_register_static(&piix3_info); type_register_static(&piix3_xen_info); type_register_static(&i440fx_pcihost_info); diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 755d6a7..07b3afc 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -247,6 +247,8 @@ typedef struct PCII440FXState PCII440FXState; #define TYPE_I440FX_PCI_HOST_BRIDGE "i440FX-pcihost" #define TYPE_I440FX_PCI_DEVICE "i440FX" +#define TYPE_XEN_IGD_PASSTHROUGH_I440FX_PCI_DEVICE "xen-igd-passthrough-i440FX" + PCIBus *i440fx_init(const char *host_type, const char *pci_type, PCII440FXState **pi440fx_state, int *piix_devfn, ISABus **isa_bus, qemu_irq *pic, -- 1.9.1