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hw/pci: Add a busnr property to pci_props and use for acpi/gi

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Using a property allows us to hide the internal details of the PCI device
from the code to build a SRAT Generic Initiator Affinity Structure with
PCI Device Handle.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20240916171017.1841767-6-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 18:10:10 +01:00 • committed by Michael S. Tsirkin
parent a20b6c8f0b
commit df9ac7254f
2 changed files with 23 additions and 5 deletions
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14
hw/pci/pci.c
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@ -67,6 +67,19 @@ static char *pcibus_get_fw_dev_path(DeviceState *dev);
static void pcibus_reset_hold(Object *obj, ResetType type);
static bool pcie_has_upstream_port(PCIDevice *dev);
static void prop_pci_busnr_get(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
uint8_t busnr = pci_dev_bus_num(PCI_DEVICE(obj));
visit_type_uint8(v, name, &busnr, errp);
}
static const PropertyInfo prop_pci_busnr = {
.name = "busnr",
.get = prop_pci_busnr_get,
};
static Property pci_props[] = {
DEFINE_PROP_PCI_DEVFN("addr", PCIDevice, devfn, -1),
DEFINE_PROP_STRING("romfile", PCIDevice, romfile),
@ -87,6 +100,7 @@ static Property pci_props[] = {
QEMU_PCIE_ARI_NEXTFN_1_BITNR, false),
DEFINE_PROP_SIZE32("x-max-bounce-buffer-size", PCIDevice,
max_bounce_buffer_size, DEFAULT_MAX_BOUNCE_BUFFER_SIZE),
{ .name = "busnr", .info = &prop_pci_busnr },
DEFINE_PROP_END_OF_LIST()
};