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hw/pci-bridge: Add acpi_uid property to TYPE_PXB_BUS 

Enable ACPI table creation for PCI Expander Bridges to be independent
of PCI internals.  Note that the UID is currently the PCI bus number.
This is motivated by the forthcoming ACPI Generic Port SRAT entries
which can be made completely independent of PCI internals.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240916171017.1841767-8-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jonathan Cameron 2024-09-16 18:10:12 +01:00 committed by Michael S. Tsirkin
parent f74e78220d
commit 97b9cb066e
1 changed files with 13 additions and 0 deletions
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13
hw/pci-bridge/pci_expander_bridge.c
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@ -85,12 +85,25 @@ static uint16_t pxb_bus_numa_node(PCIBus *bus)
return pxb->numa_node; return pxb->numa_node;
} }
static void prop_pxb_uid_get(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
uint32_t uid = pci_bus_num(PCI_BUS(obj));
visit_type_uint32(v, name, &uid, errp);
}
static void pxb_bus_class_init(ObjectClass *class, void *data) static void pxb_bus_class_init(ObjectClass *class, void *data)
{ {
PCIBusClass *pbc = PCI_BUS_CLASS(class); PCIBusClass *pbc = PCI_BUS_CLASS(class);
pbc->bus_num = pxb_bus_num; pbc->bus_num = pxb_bus_num;
pbc->numa_node = pxb_bus_numa_node; pbc->numa_node = pxb_bus_numa_node;
object_class_property_add(class, "acpi_uid", "uint32",
prop_pxb_uid_get, NULL, NULL, NULL);
object_class_property_set_description(class, "acpi_uid",
"ACPI Unique ID used to distinguish this PCI Host Bridge / ACPI00016");
} }
static const TypeInfo pxb_bus_info = { static const TypeInfo pxb_bus_info = {