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q35: allow dynamic sysbus 

Allow adding sysbus devices with -device on Q35.

At first Q35 will support only intel-iommu to be added this way,
however the command line will support all sysbus devices.

Mark with 'cannot_instantiate_with_device_add_yet' the ones
causing immediate problems (e.g. crashes).

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Marcel Apfelbaum 2016-06-27 18:38:33 +03:00 committed by Michael S. Tsirkin
parent b86eacb804
commit bf8d492405
4 changed files with 7 additions and 0 deletions
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1
hw/i386/pc_q35.c
View File

@ -290,6 +290,7 @@ static void pc_q35_machine_options(MachineClass *m)
m->default_machine_opts = "firmware=bios-256k.bin";
m->default_display = "std";
m->no_floppy = 1;
m->has_dynamic_sysbus = true;
}
static void pc_q35_2_7_machine_options(MachineClass *m)

2
hw/pci-bridge/pci_expander_bridge.c
View File

@ -149,6 +149,8 @@ static void pxb_host_class_init(ObjectClass *class, void *data)
PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(class);
dc->fw_name = "pci";
/* Reason: Internal part of the pxb/pxb-pcie device, not usable by itself */
dc->cannot_instantiate_with_device_add_yet = true;
sbc->explicit_ofw_unit_address = pxb_host_ofw_unit_address;
hc->root_bus_path = pxb_host_root_bus_path;
}

2
hw/pci-host/piix.c
View File

@ -865,6 +865,8 @@ static void i440fx_pcihost_class_init(ObjectClass *klass, void *data)
dc->realize = i440fx_pcihost_realize;
dc->fw_name = "pci";
dc->props = i440fx_props;
/* Reason: needs to be wired up by pc_init1 */
dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo i440fx_pcihost_info = {

2
hw/pci-host/q35.c
View File

@ -142,6 +142,8 @@ static void q35_host_class_init(ObjectClass *klass, void *data)
hc->root_bus_path = q35_host_root_bus_path;
dc->realize = q35_host_realize;
dc->props = mch_props;
/* Reason: needs to be wired up by pc_q35_init */
dc->cannot_instantiate_with_device_add_yet = true;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->fw_name = "pci";
}