qemu

FORK: QEMU emulator
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i82801b11.c (4226B)

      1 /*
      2  * Copyright (c) 2006 Fabrice Bellard
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a copy
      5  * of this software and associated documentation files (the "Software"), to deal
      6  * in the Software without restriction, including without limitation the rights
      7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
      8  * copies of the Software, and to permit persons to whom the Software is
      9  * furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice shall be included in
     12  * all copies or substantial portions of the Software.
     13  *
     14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     20  * THE SOFTWARE.
     21  */
     22 /*
     23  * QEMU i82801b11 dmi-to-pci Bridge Emulation
     24  *
     25  *  Copyright (c) 2009, 2010, 2011
     26  *                Isaku Yamahata <yamahata at valinux co jp>
     27  *                VA Linux Systems Japan K.K.
     28  *  Copyright (C) 2012 Jason Baron <jbaron@redhat.com>
     29  *
     30  * This library is free software; you can redistribute it and/or
     31  * modify it under the terms of the GNU Lesser General Public
     32  * License as published by the Free Software Foundation; either
     33  * version 2.1 of the License, or (at your option) any later version.
     34  *
     35  * This library is distributed in the hope that it will be useful,
     36  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     37  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     38  * Lesser General Public License for more details.
     39  *
     40  * You should have received a copy of the GNU Lesser General Public
     41  * License along with this library; if not, see <http://www.gnu.org/licenses/>
     42  */
     43 
     44 #include "qemu/osdep.h"
     45 #include "hw/pci/pci.h"
     46 #include "migration/vmstate.h"
     47 #include "qemu/module.h"
     48 #include "hw/i386/ich9.h"
     49 
     50 /*****************************************************************************/
     51 /* ICH9 DMI-to-PCI bridge */
     52 #define I82801ba_SSVID_OFFSET   0x50
     53 #define I82801ba_SSVID_SVID     0
     54 #define I82801ba_SSVID_SSID     0
     55 
     56 typedef struct I82801b11Bridge {
     57     /*< private >*/
     58     PCIBridge parent_obj;
     59     /*< public >*/
     60 } I82801b11Bridge;
     61 
     62 static void i82801b11_bridge_realize(PCIDevice *d, Error **errp)
     63 {
     64     int rc;
     65 
     66     pci_bridge_initfn(d, TYPE_PCI_BUS);
     67 
     68     rc = pci_bridge_ssvid_init(d, I82801ba_SSVID_OFFSET,
     69                                I82801ba_SSVID_SVID, I82801ba_SSVID_SSID,
     70                                errp);
     71     if (rc < 0) {
     72         goto err_bridge;
     73     }
     74     pci_config_set_prog_interface(d->config, PCI_CLASS_BRIDGE_PCI_INF_SUB);
     75     return;
     76 
     77 err_bridge:
     78     pci_bridge_exitfn(d);
     79 }
     80 
     81 static const VMStateDescription i82801b11_bridge_dev_vmstate = {
     82     .name = "i82801b11_bridge",
     83     .priority = MIG_PRI_PCI_BUS,
     84     .fields = (VMStateField[]) {
     85         VMSTATE_PCI_DEVICE(parent_obj, PCIBridge),
     86         VMSTATE_END_OF_LIST()
     87     }
     88 };
     89 
     90 static void i82801b11_bridge_class_init(ObjectClass *klass, void *data)
     91 {
     92     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
     93     DeviceClass *dc = DEVICE_CLASS(klass);
     94 
     95     k->is_bridge = true;
     96     k->vendor_id = PCI_VENDOR_ID_INTEL;
     97     k->device_id = PCI_DEVICE_ID_INTEL_82801BA_11;
     98     k->revision = ICH9_D2P_A2_REVISION;
     99     k->realize = i82801b11_bridge_realize;
    100     k->config_write = pci_bridge_write_config;
    101     dc->vmsd = &i82801b11_bridge_dev_vmstate;
    102     dc->reset = pci_bridge_reset;
    103     set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
    104 }
    105 
    106 static const TypeInfo i82801b11_bridge_info = {
    107     .name          = "i82801b11-bridge",
    108     .parent        = TYPE_PCI_BRIDGE,
    109     .instance_size = sizeof(I82801b11Bridge),
    110     .class_init    = i82801b11_bridge_class_init,
    111     .interfaces = (InterfaceInfo[]) {
    112         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
    113         { },
    114     },
    115 };
    116 
    117 static void d2pbr_register(void)
    118 {
    119     type_register_static(&i82801b11_bridge_info);
    120 }
    121 
    122 type_init(d2pbr_register);