* See the COPYING file in the top-level directory.
*/
+#include "qemu/osdep.h"
+#include "qapi/error.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_bus.h"
#include "hw/pci/pci_host.h"
-#include "hw/pci/pci_bus.h"
+#include "hw/pci/pci_bridge.h"
#include "hw/i386/pc.h"
#include "qemu/range.h"
#include "qemu/error-report.h"
#define TYPE_PXB_BUS "pxb-bus"
#define PXB_BUS(obj) OBJECT_CHECK(PXBBus, (obj), TYPE_PXB_BUS)
+#define TYPE_PXB_PCIE_BUS "pxb-pcie-bus"
+#define PXB_PCIE_BUS(obj) OBJECT_CHECK(PXBBus, (obj), TYPE_PXB_PCIE_BUS)
+
typedef struct PXBBus {
/*< private >*/
PCIBus parent_obj;
#define TYPE_PXB_DEVICE "pxb"
#define PXB_DEV(obj) OBJECT_CHECK(PXBDev, (obj), TYPE_PXB_DEVICE)
+#define TYPE_PXB_PCIE_DEVICE "pxb-pcie"
+#define PXB_PCIE_DEV(obj) OBJECT_CHECK(PXBDev, (obj), TYPE_PXB_PCIE_DEVICE)
+
typedef struct PXBDev {
/*< private >*/
PCIDevice parent_obj;
uint16_t numa_node;
} PXBDev;
+static PXBDev *convert_to_pxb(PCIDevice *dev)
+{
+ return pci_bus_is_express(dev->bus) ? PXB_PCIE_DEV(dev) : PXB_DEV(dev);
+}
+
+static GList *pxb_dev_list;
+
#define TYPE_PXB_HOST "pxb-host"
static int pxb_bus_num(PCIBus *bus)
{
- PXBDev *pxb = PXB_DEV(bus->parent_dev);
+ PXBDev *pxb = convert_to_pxb(bus->parent_dev);
return pxb->bus_nr;
}
static uint16_t pxb_bus_numa_node(PCIBus *bus)
{
- PXBDev *pxb = PXB_DEV(bus->parent_dev);
+ PXBDev *pxb = convert_to_pxb(bus->parent_dev);
return pxb->numa_node;
}
.class_init = pxb_bus_class_init,
};
+static const TypeInfo pxb_pcie_bus_info = {
+ .name = TYPE_PXB_PCIE_BUS,
+ .parent = TYPE_PCIE_BUS,
+ .instance_size = sizeof(PXBBus),
+ .class_init = pxb_bus_class_init,
+};
+
static const char *pxb_host_root_bus_path(PCIHostState *host_bridge,
PCIBus *rootbus)
{
- PXBBus *bus = PXB_BUS(rootbus);
+ PXBBus *bus = pci_bus_is_express(rootbus) ?
+ PXB_PCIE_BUS(rootbus) : PXB_BUS(rootbus);
snprintf(bus->bus_path, 8, "0000:%02x", pxb_bus_num(rootbus));
return bus->bus_path;
}
+static char *pxb_host_ofw_unit_address(const SysBusDevice *dev)
+{
+ const PCIHostState *pxb_host;
+ const PCIBus *pxb_bus;
+ const PXBDev *pxb_dev;
+ int position;
+ const DeviceState *pxb_dev_base;
+ const PCIHostState *main_host;
+ const SysBusDevice *main_host_sbd;
+
+ pxb_host = PCI_HOST_BRIDGE(dev);
+ pxb_bus = pxb_host->bus;
+ pxb_dev = convert_to_pxb(pxb_bus->parent_dev);
+ position = g_list_index(pxb_dev_list, pxb_dev);
+ assert(position >= 0);
+
+ pxb_dev_base = DEVICE(pxb_dev);
+ main_host = PCI_HOST_BRIDGE(pxb_dev_base->parent_bus->parent);
+ main_host_sbd = SYS_BUS_DEVICE(main_host);
+
+ if (main_host_sbd->num_mmio > 0) {
+ return g_strdup_printf(TARGET_FMT_plx ",%x",
+ main_host_sbd->mmio[0].addr, position + 1);
+ }
+ if (main_host_sbd->num_pio > 0) {
+ return g_strdup_printf("i%04x,%x",
+ main_host_sbd->pio[0], position + 1);
+ }
+ return NULL;
+}
+
static void pxb_host_class_init(ObjectClass *class, void *data)
{
DeviceClass *dc = DEVICE_CLASS(class);
+ SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(class);
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->user_creatable = false;
+ sbc->explicit_ofw_unit_address = pxb_host_ofw_unit_address;
hc->root_bus_path = pxb_host_root_bus_path;
}
};
/*
- * Registers the PXB bus as a child of the i440fx root bus.
- *
- * Returns 0 on successs, -1 if i440fx host was not
- * found or the bus number is already in use.
+ * Registers the PXB bus as a child of pci host root bus.
*/
-static int pxb_register_bus(PCIDevice *dev, PCIBus *pxb_bus)
+static void pxb_register_bus(PCIDevice *dev, PCIBus *pxb_bus, Error **errp)
{
PCIBus *bus = dev->bus;
int pxb_bus_num = pci_bus_num(pxb_bus);
if (bus->parent_dev) {
- error_report("PXB devices can be attached only to root bus.");
- return -1;
+ error_setg(errp, "PXB devices can be attached only to root bus");
+ return;
}
QLIST_FOREACH(bus, &bus->child, sibling) {
if (pci_bus_num(bus) == pxb_bus_num) {
- error_report("Bus %d is already in use.", pxb_bus_num);
- return -1;
+ error_setg(errp, "Bus %d is already in use", pxb_bus_num);
+ return;
}
}
QLIST_INSERT_HEAD(&dev->bus->child, pxb_bus, sibling);
-
- return 0;
}
static int pxb_map_irq_fn(PCIDevice *pci_dev, int pin)
return pin - PCI_SLOT(pxb->devfn);
}
-static int pxb_dev_initfn(PCIDevice *dev)
+static gint pxb_compare(gconstpointer a, gconstpointer b)
{
- PXBDev *pxb = PXB_DEV(dev);
- DeviceState *ds, *bds;
+ const PXBDev *pxb_a = a, *pxb_b = b;
+
+ return pxb_a->bus_nr < pxb_b->bus_nr ? -1 :
+ pxb_a->bus_nr > pxb_b->bus_nr ? 1 :
+ 0;
+}
+
+static void pxb_dev_realize_common(PCIDevice *dev, bool pcie, Error **errp)
+{
+ PXBDev *pxb = convert_to_pxb(dev);
+ DeviceState *ds, *bds = NULL;
PCIBus *bus;
const char *dev_name = NULL;
+ Error *local_err = NULL;
if (pxb->numa_node != NUMA_NODE_UNASSIGNED &&
pxb->numa_node >= nb_numa_nodes) {
- error_report("Illegal numa node %d.", pxb->numa_node);
- return -EINVAL;
+ error_setg(errp, "Illegal numa node %d", pxb->numa_node);
+ return;
}
if (dev->qdev.id && *dev->qdev.id) {
}
ds = qdev_create(NULL, TYPE_PXB_HOST);
- bus = pci_bus_new(ds, "pxb-internal", NULL, NULL, 0, TYPE_PXB_BUS);
+ if (pcie) {
+ bus = pci_bus_new(ds, dev_name, NULL, NULL, 0, TYPE_PXB_PCIE_BUS);
+ } else {
+ bus = pci_bus_new(ds, "pxb-internal", NULL, NULL, 0, TYPE_PXB_BUS);
+ bds = qdev_create(BUS(bus), "pci-bridge");
+ bds->id = dev_name;
+ qdev_prop_set_uint8(bds, PCI_BRIDGE_DEV_PROP_CHASSIS_NR, pxb->bus_nr);
+ qdev_prop_set_bit(bds, PCI_BRIDGE_DEV_PROP_SHPC, false);
+ }
bus->parent_dev = dev;
bus->address_space_mem = dev->bus->address_space_mem;
bus->address_space_io = dev->bus->address_space_io;
bus->map_irq = pxb_map_irq_fn;
- bds = qdev_create(BUS(bus), "pci-bridge");
- bds->id = dev_name;
- qdev_prop_set_uint8(bds, "chassis_nr", pxb->bus_nr);
-
PCI_HOST_BRIDGE(ds)->bus = bus;
- if (pxb_register_bus(dev, bus)) {
- return -EINVAL;
+ pxb_register_bus(dev, bus, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ goto err_register_bus;
}
qdev_init_nofail(ds);
- qdev_init_nofail(bds);
+ if (bds) {
+ qdev_init_nofail(bds);
+ }
pci_word_test_and_set_mask(dev->config + PCI_STATUS,
PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK);
pci_config_set_class(dev->config, PCI_CLASS_BRIDGE_HOST);
- return 0;
+ pxb_dev_list = g_list_insert_sorted(pxb_dev_list, pxb, pxb_compare);
+ return;
+
+err_register_bus:
+ object_unref(OBJECT(bds));
+ object_unparent(OBJECT(bus));
+ object_unref(OBJECT(ds));
+}
+
+static void pxb_dev_realize(PCIDevice *dev, Error **errp)
+{
+ if (pci_bus_is_express(dev->bus)) {
+ error_setg(errp, "pxb devices cannot reside on a PCIe bus");
+ return;
+ }
+
+ pxb_dev_realize_common(dev, false, errp);
+}
+
+static void pxb_dev_exitfn(PCIDevice *pci_dev)
+{
+ PXBDev *pxb = convert_to_pxb(pci_dev);
+
+ pxb_dev_list = g_list_remove(pxb_dev_list, pxb);
}
static Property pxb_dev_properties[] = {
- /* Note: 0 is not a legal a PXB bus number. */
+ /* Note: 0 is not a legal PXB bus number. */
DEFINE_PROP_UINT8("bus_nr", PXBDev, bus_nr, 0),
DEFINE_PROP_UINT16("numa_node", PXBDev, numa_node, NUMA_NODE_UNASSIGNED),
DEFINE_PROP_END_OF_LIST(),
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
- k->init = pxb_dev_initfn;
+ k->realize = pxb_dev_realize;
+ k->exit = pxb_dev_exitfn;
k->vendor_id = PCI_VENDOR_ID_REDHAT;
k->device_id = PCI_DEVICE_ID_REDHAT_PXB;
k->class_id = PCI_CLASS_BRIDGE_HOST;
dc->desc = "PCI Expander Bridge";
dc->props = pxb_dev_properties;
+ dc->hotpluggable = false;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
}
static const TypeInfo pxb_dev_info = {
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PXBDev),
.class_init = pxb_dev_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+ { },
+ },
+};
+
+static void pxb_pcie_dev_realize(PCIDevice *dev, Error **errp)
+{
+ if (!pci_bus_is_express(dev->bus)) {
+ error_setg(errp, "pxb-pcie devices cannot reside on a PCI bus");
+ return;
+ }
+
+ pxb_dev_realize_common(dev, true, errp);
+}
+
+static void pxb_pcie_dev_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+ k->realize = pxb_pcie_dev_realize;
+ k->exit = pxb_dev_exitfn;
+ k->vendor_id = PCI_VENDOR_ID_REDHAT;
+ k->device_id = PCI_DEVICE_ID_REDHAT_PXB_PCIE;
+ k->class_id = PCI_CLASS_BRIDGE_HOST;
+
+ dc->desc = "PCI Express Expander Bridge";
+ dc->props = pxb_dev_properties;
+ dc->hotpluggable = false;
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+}
+
+static const TypeInfo pxb_pcie_dev_info = {
+ .name = TYPE_PXB_PCIE_DEVICE,
+ .parent = TYPE_PCI_DEVICE,
+ .instance_size = sizeof(PXBDev),
+ .class_init = pxb_pcie_dev_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { INTERFACE_CONVENTIONAL_PCI_DEVICE },
+ { },
+ },
};
static void pxb_register_types(void)
{
type_register_static(&pxb_bus_info);
+ type_register_static(&pxb_pcie_bus_info);
type_register_static(&pxb_host_info);
type_register_static(&pxb_dev_info);
+ type_register_static(&pxb_pcie_dev_info);
}
type_init(pxb_register_types)
projects / qemu.git / blobdiff