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26#include "qemu/osdep.h"
27#include "sysemu/accel.h"
28#include "hw/boards.h"
29#include "qemu-common.h"
30#include "sysemu/arch_init.h"
31#include "sysemu/sysemu.h"
32#include "sysemu/kvm.h"
33#include "sysemu/qtest.h"
34#include "hw/xen/xen.h"
35#include "qom/object.h"
36#include "qemu/error-report.h"
37
38static const TypeInfo accel_type = {
39 .name = TYPE_ACCEL,
40 .parent = TYPE_OBJECT,
41 .class_size = sizeof(AccelClass),
42 .instance_size = sizeof(AccelState),
43};
44
45
46static AccelClass *accel_find(const char *opt_name)
47{
48 char *class_name = g_strdup_printf(ACCEL_CLASS_NAME("%s"), opt_name);
49 AccelClass *ac = ACCEL_CLASS(object_class_by_name(class_name));
50 g_free(class_name);
51 return ac;
52}
53
54static int accel_init_machine(AccelClass *acc, MachineState *ms)
55{
56 ObjectClass *oc = OBJECT_CLASS(acc);
57 const char *cname = object_class_get_name(oc);
58 AccelState *accel = ACCEL(object_new(cname));
59 int ret;
60 ms->accelerator = accel;
61 *(acc->allowed) = true;
62 ret = acc->init_machine(ms);
63 if (ret < 0) {
64 ms->accelerator = NULL;
65 *(acc->allowed) = false;
66 object_unref(OBJECT(accel));
67 }
68 return ret;
69}
70
71void configure_accelerator(MachineState *ms)
72{
73 const char *accel, *p;
74 char buf[10];
75 int ret;
76 bool accel_initialised = false;
77 bool init_failed = false;
78 AccelClass *acc = NULL;
79
80 accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
81 if (accel == NULL) {
82
83 accel = "tcg";
84 }
85
86 p = accel;
87 while (!accel_initialised && *p != '\0') {
88 if (*p == ':') {
89 p++;
90 }
91 p = get_opt_name(buf, sizeof(buf), p, ':');
92 acc = accel_find(buf);
93 if (!acc) {
94 continue;
95 }
96 if (acc->available && !acc->available()) {
97 printf("%s not supported for this target\n",
98 acc->name);
99 continue;
100 }
101 ret = accel_init_machine(acc, ms);
102 if (ret < 0) {
103 init_failed = true;
104 error_report("failed to initialize %s: %s",
105 acc->name, strerror(-ret));
106 } else {
107 accel_initialised = true;
108 }
109 }
110
111 if (!accel_initialised) {
112 if (!init_failed) {
113 error_report("-machine accel=%s: No accelerator found", accel);
114 }
115 exit(1);
116 }
117
118 if (init_failed) {
119 error_report("Back to %s accelerator", acc->name);
120 }
121}
122
123void accel_register_compat_props(AccelState *accel)
124{
125 AccelClass *class = ACCEL_GET_CLASS(accel);
126 register_compat_props_array(class->global_props);
127}
128
129static void register_accel_types(void)
130{
131 type_register_static(&accel_type);
132}
133
134type_init(register_accel_types);
135