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