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 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 "libqos/qgraph.h"
22 #include "pci-spapr.h"
23 #include "qemu/module.h"
24 #include "libqos/malloc-spapr.h"
25 
26 typedef struct QSPAPR_pci_host QSPAPR_pci_host;
27 typedef struct Qppc64_pseriesMachine Qppc64_pseriesMachine;
28 
29 struct QSPAPR_pci_host {
30     QOSGraphObject obj;
31     QPCIBusSPAPR pci;
32 };
33 
34 struct Qppc64_pseriesMachine {
35     QOSGraphObject obj;
36     QGuestAllocator alloc;
37     QSPAPR_pci_host bridge;
38 };
39 
40 /* QSPAPR_pci_host */
41 
42 static QOSGraphObject *QSPAPR_host_get_device(void *obj, const char *device)
43 {
44     QSPAPR_pci_host *host = obj;
45     if (!g_strcmp0(device, "pci-bus-spapr")) {
46         return &host->pci.obj;
47     }
48     fprintf(stderr, "%s not present in QSPAPR_pci_host\n", device);
49     g_assert_not_reached();
50 }
51 
52 static void qos_create_QSPAPR_host(QSPAPR_pci_host *host,
53                                    QTestState *qts,
54                                    QGuestAllocator *alloc)
55 {
56     host->obj.get_device = QSPAPR_host_get_device;
57     qpci_init_spapr(&host->pci, qts, alloc);
58 }
59 
60 /* ppc64/pseries machine */
61 
62 static void spapr_destructor(QOSGraphObject *obj)
63 {
64     Qppc64_pseriesMachine *machine = (Qppc64_pseriesMachine *) obj;
65     alloc_destroy(&machine->alloc);
66 }
67 
68 static void *spapr_get_driver(void *object, const char *interface)
69 {
70     Qppc64_pseriesMachine *machine = object;
71     if (!g_strcmp0(interface, "memory")) {
72         return &machine->alloc;
73     }
74 
75     fprintf(stderr, "%s not present in ppc64/pseries\n", interface);
76     g_assert_not_reached();
77 }
78 
79 static QOSGraphObject *spapr_get_device(void *obj, const char *device)
80 {
81     Qppc64_pseriesMachine *machine = obj;
82     if (!g_strcmp0(device, "spapr-pci-host-bridge")) {
83         return &machine->bridge.obj;
84     }
85 
86     fprintf(stderr, "%s not present in ppc64/pseries\n", device);
87     g_assert_not_reached();
88 }
89 
90 static void *qos_create_machine_spapr(QTestState *qts)
91 {
92     Qppc64_pseriesMachine *machine = g_new0(Qppc64_pseriesMachine, 1);
93     machine->obj.get_device = spapr_get_device;
94     machine->obj.get_driver = spapr_get_driver;
95     machine->obj.destructor = spapr_destructor;
96     spapr_alloc_init(&machine->alloc, qts, ALLOC_NO_FLAGS);
97 
98     qos_create_QSPAPR_host(&machine->bridge, qts, &machine->alloc);
99 
100     return &machine->obj;
101 }
102 
103 static void spapr_machine_register_nodes(void)
104 {
105     qos_node_create_machine("ppc64/pseries", qos_create_machine_spapr);
106     qos_node_create_driver("spapr-pci-host-bridge", NULL);
107     qos_node_contains("ppc64/pseries", "spapr-pci-host-bridge", NULL);
108     qos_node_contains("spapr-pci-host-bridge", "pci-bus-spapr", NULL);
109 }
110 
111 libqos_init(spapr_machine_register_nodes);
112 
113