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hw/pxb: Use a type for realizing expanders 

This opens up the possibility for more types of expanders (other than
PCI and PCIe). We'll need this to create a CXL expander.

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220429144110.25167-12-Jonathan.Cameron@huawei.com>
This commit is contained in:
Ben Widawsky 2022-04-29 15:40:36 +01:00 committed by Michael S. Tsirkin
parent 056172691b
commit 25a2e524e3
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
hw/pci-bridge/pci_expander_bridge.c
View File

@ -24,6 +24,8 @@
#include "hw/boards.h"
#include "qom/object.h"
enum BusType { PCI, PCIE };
#define TYPE_PXB_BUS "pxb-bus"
typedef struct PXBBus PXBBus;
DECLARE_INSTANCE_CHECKER(PXBBus, PXB_BUS,
@ -221,7 +223,8 @@ static gint pxb_compare(gconstpointer a, gconstpointer b)
0;
}
static void pxb_dev_realize_common(PCIDevice *dev, bool pcie, Error **errp)
static void pxb_dev_realize_common(PCIDevice *dev, enum BusType type,
Error **errp)
{
PXBDev *pxb = convert_to_pxb(dev);
DeviceState *ds, *bds = NULL;
@ -246,7 +249,7 @@ static void pxb_dev_realize_common(PCIDevice *dev, bool pcie, Error **errp)
}
ds = qdev_new(TYPE_PXB_HOST);
if (pcie) {
if (type == PCIE) {
bus = pci_root_bus_new(ds, dev_name, NULL, NULL, 0, TYPE_PXB_PCIE_BUS);
} else {
bus = pci_root_bus_new(ds, "pxb-internal", NULL, NULL, 0, TYPE_PXB_BUS);
@ -295,7 +298,7 @@ static void pxb_dev_realize(PCIDevice *dev, Error **errp)
return;
}
pxb_dev_realize_common(dev, false, errp);
pxb_dev_realize_common(dev, PCI, errp);
}
static void pxb_dev_exitfn(PCIDevice *pci_dev)
@ -348,7 +351,7 @@ static void pxb_pcie_dev_realize(PCIDevice *dev, Error **errp)
return;
}
pxb_dev_realize_common(dev, true, errp);
pxb_dev_realize_common(dev, PCIE, errp);
}
static void pxb_pcie_dev_class_init(ObjectClass *klass, void *data)