qemu

FORK: QEMU emulator
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x86_64_pc-machine.c (3329B)

      1 /*
      2  * libqos driver framework
      3  *
      4  * Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Lesser General Public
      8  * License version 2.1 as published by the Free Software Foundation.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Lesser General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Lesser General Public
     16  * License along with this library; if not, see <http://www.gnu.org/licenses/>
     17  */
     18 
     19 #include "qemu/osdep.h"
     20 #include "../libqtest.h"
     21 #include "qgraph.h"
     22 #include "pci-pc.h"
     23 #include "qemu/module.h"
     24 #include "malloc-pc.h"
     25 
     26 typedef struct QX86PCMachine QX86PCMachine;
     27 typedef struct i440FX_pcihost i440FX_pcihost;
     28 typedef struct QSDHCI_PCI  QSDHCI_PCI;
     29 
     30 struct i440FX_pcihost {
     31     QOSGraphObject obj;
     32     QPCIBusPC pci;
     33 };
     34 
     35 struct QX86PCMachine {
     36     QOSGraphObject obj;
     37     QGuestAllocator alloc;
     38     i440FX_pcihost bridge;
     39 };
     40 
     41 /* i440FX_pcihost */
     42 
     43 static QOSGraphObject *i440FX_host_get_device(void *obj, const char *device)
     44 {
     45     i440FX_pcihost *host = obj;
     46     if (!g_strcmp0(device, "pci-bus-pc")) {
     47         return &host->pci.obj;
     48     }
     49     fprintf(stderr, "%s not present in i440FX-pcihost\n", device);
     50     g_assert_not_reached();
     51 }
     52 
     53 static void qos_create_i440FX_host(i440FX_pcihost *host,
     54                                    QTestState *qts,
     55                                    QGuestAllocator *alloc)
     56 {
     57     host->obj.get_device = i440FX_host_get_device;
     58     qpci_init_pc(&host->pci, qts, alloc);
     59 }
     60 
     61 /* x86_64/pc machine */
     62 
     63 static void pc_destructor(QOSGraphObject *obj)
     64 {
     65     QX86PCMachine *machine = (QX86PCMachine *) obj;
     66     alloc_destroy(&machine->alloc);
     67 }
     68 
     69 static void *pc_get_driver(void *object, const char *interface)
     70 {
     71     QX86PCMachine *machine = object;
     72     if (!g_strcmp0(interface, "memory")) {
     73         return &machine->alloc;
     74     }
     75 
     76     fprintf(stderr, "%s not present in x86_64/pc\n", interface);
     77     g_assert_not_reached();
     78 }
     79 
     80 static QOSGraphObject *pc_get_device(void *obj, const char *device)
     81 {
     82     QX86PCMachine *machine = obj;
     83     if (!g_strcmp0(device, "i440FX-pcihost")) {
     84         return &machine->bridge.obj;
     85     }
     86 
     87     fprintf(stderr, "%s not present in x86_64/pc\n", device);
     88     g_assert_not_reached();
     89 }
     90 
     91 static void *qos_create_machine_pc(QTestState *qts)
     92 {
     93     QX86PCMachine *machine = g_new0(QX86PCMachine, 1);
     94     machine->obj.get_device = pc_get_device;
     95     machine->obj.get_driver = pc_get_driver;
     96     machine->obj.destructor = pc_destructor;
     97     pc_alloc_init(&machine->alloc, qts, ALLOC_NO_FLAGS);
     98     qos_create_i440FX_host(&machine->bridge, qts, &machine->alloc);
     99 
    100     return &machine->obj;
    101 }
    102 
    103 static void pc_machine_register_nodes(void)
    104 {
    105     qos_node_create_machine("i386/pc", qos_create_machine_pc);
    106     qos_node_contains("i386/pc", "i440FX-pcihost", NULL);
    107 
    108     qos_node_create_machine("x86_64/pc", qos_create_machine_pc);
    109     qos_node_contains("x86_64/pc", "i440FX-pcihost", NULL);
    110 
    111     qos_node_create_driver("i440FX-pcihost", NULL);
    112     qos_node_contains("i440FX-pcihost", "pci-bus-pc", NULL);
    113 }
    114 
    115 libqos_init(pc_machine_register_nodes);