a1c9304683
Add the dmi-to-pci i82801b11 bridge chip. This is the pci bridge chip that q35 uses on its host bus for PCI bus arbitration. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 2006 Fabrice Bellard
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
/*
|
|
* QEMU i82801b11 dmi-to-pci Bridge Emulation
|
|
*
|
|
* Copyright (c) 2009, 2010, 2011
|
|
* Isaku Yamahata <yamahata at valinux co jp>
|
|
* VA Linux Systems Japan K.K.
|
|
* Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>
|
|
*/
|
|
|
|
#include "pci.h"
|
|
#include "ich9.h"
|
|
|
|
|
|
/*****************************************************************************/
|
|
/* ICH9 DMI-to-PCI bridge */
|
|
#define I82801ba_SSVID_OFFSET 0x50
|
|
#define I82801ba_SSVID_SVID 0
|
|
#define I82801ba_SSVID_SSID 0
|
|
|
|
typedef struct I82801b11Bridge {
|
|
PCIBridge br;
|
|
} I82801b11Bridge;
|
|
|
|
static int i82801b11_bridge_initfn(PCIDevice *d)
|
|
{
|
|
int rc;
|
|
|
|
rc = pci_bridge_initfn(d);
|
|
if (rc < 0) {
|
|
return rc;
|
|
}
|
|
|
|
rc = pci_bridge_ssvid_init(d, I82801ba_SSVID_OFFSET,
|
|
I82801ba_SSVID_SVID, I82801ba_SSVID_SSID);
|
|
if (rc < 0) {
|
|
goto err_bridge;
|
|
}
|
|
pci_config_set_prog_interface(d->config, PCI_CLASS_BRDIGE_PCI_INF_SUB);
|
|
return 0;
|
|
|
|
err_bridge:
|
|
pci_bridge_exitfn(d);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void i82801b11_bridge_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
|
|
|
|
k->is_bridge = 1;
|
|
k->vendor_id = PCI_VENDOR_ID_INTEL;
|
|
k->device_id = PCI_DEVICE_ID_INTEL_82801BA_11;
|
|
k->revision = ICH9_D2P_A2_REVISION;
|
|
k->init = i82801b11_bridge_initfn;
|
|
}
|
|
|
|
static const TypeInfo i82801b11_bridge_info = {
|
|
.name = "i82801b11-bridge",
|
|
.parent = TYPE_PCI_DEVICE,
|
|
.instance_size = sizeof(I82801b11Bridge),
|
|
.class_init = i82801b11_bridge_class_init,
|
|
};
|
|
|
|
PCIBus *ich9_d2pbr_init(PCIBus *bus, int devfn, int sec_bus)
|
|
{
|
|
PCIDevice *d;
|
|
PCIBridge *br;
|
|
char buf[16];
|
|
DeviceState *qdev;
|
|
|
|
d = pci_create_multifunction(bus, devfn, true, "i82801b11-bridge");
|
|
if (!d) {
|
|
return NULL;
|
|
}
|
|
br = DO_UPCAST(PCIBridge, dev, d);
|
|
qdev = &br->dev.qdev;
|
|
|
|
snprintf(buf, sizeof(buf), "pci.%d", sec_bus);
|
|
pci_bridge_map_irq(br, buf, pci_swizzle_map_irq_fn);
|
|
qdev_init_nofail(qdev);
|
|
|
|
return pci_bridge_get_sec_bus(br);
|
|
}
|
|
|
|
static void d2pbr_register(void)
|
|
{
|
|
type_register_static(&i82801b11_bridge_info);
|
|
}
|
|
|
|
type_init(d2pbr_register);
|