@samitouri / QOSamiQemu
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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);