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Commit | Line | Data |
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a1a9cb0c | 1 | /* |
940e43aa | 2 | * QEMU accel class, components common to system emulation and user mode |
a1a9cb0c EH |
3 | * |
4 | * Copyright (c) 2003-2008 Fabrice Bellard | |
5 | * Copyright (c) 2014 Red Hat Inc. | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
23 | * THE SOFTWARE. | |
24 | */ | |
25 | ||
d38ea87a | 26 | #include "qemu/osdep.h" |
940e43aa | 27 | #include "qemu/accel.h" |
a1a9cb0c | 28 | |
fb6916dd CF |
29 | #include "cpu.h" |
30 | #include "hw/core/accel-cpu.h" | |
31 | ||
b86f59c7 | 32 | #ifndef CONFIG_USER_ONLY |
0017c64e | 33 | #include "accel-system.h" |
b86f59c7 CF |
34 | #endif /* !CONFIG_USER_ONLY */ |
35 | ||
b14a0b74 EH |
36 | static const TypeInfo accel_type = { |
37 | .name = TYPE_ACCEL, | |
38 | .parent = TYPE_OBJECT, | |
39 | .class_size = sizeof(AccelClass), | |
40 | .instance_size = sizeof(AccelState), | |
a1a9cb0c EH |
41 | }; |
42 | ||
b14a0b74 | 43 | /* Lookup AccelClass from opt_name. Returns NULL if not found */ |
28a09617 | 44 | AccelClass *accel_find(const char *opt_name) |
a2246552 | 45 | { |
b14a0b74 | 46 | char *class_name = g_strdup_printf(ACCEL_CLASS_NAME("%s"), opt_name); |
f934907a | 47 | AccelClass *ac = ACCEL_CLASS(module_object_class_by_name(class_name)); |
b14a0b74 EH |
48 | g_free(class_name); |
49 | return ac; | |
a2246552 EH |
50 | } |
51 | ||
55bd445c AG |
52 | /* Return the name of the current accelerator */ |
53 | const char *current_accel_name(void) | |
54 | { | |
55 | AccelClass *ac = ACCEL_GET_CLASS(current_accel()); | |
56 | ||
57 | return ac->name; | |
58 | } | |
59 | ||
fb6916dd CF |
60 | static void accel_init_cpu_int_aux(ObjectClass *klass, void *opaque) |
61 | { | |
62 | CPUClass *cc = CPU_CLASS(klass); | |
63 | AccelCPUClass *accel_cpu = opaque; | |
64 | ||
cc3f2be6 CF |
65 | /* |
66 | * The first callback allows accel-cpu to run initializations | |
67 | * for the CPU, customizing CPU behavior according to the accelerator. | |
68 | * | |
69 | * The second one allows the CPU to customize the accel-cpu | |
70 | * behavior according to the CPU. | |
71 | * | |
72 | * The second is currently only used by TCG, to specialize the | |
73 | * TCGCPUOps depending on the CPU type. | |
74 | */ | |
fb6916dd CF |
75 | cc->accel_cpu = accel_cpu; |
76 | if (accel_cpu->cpu_class_init) { | |
77 | accel_cpu->cpu_class_init(cc); | |
78 | } | |
cc3f2be6 CF |
79 | if (cc->init_accel_cpu) { |
80 | cc->init_accel_cpu(accel_cpu, cc); | |
81 | } | |
fb6916dd CF |
82 | } |
83 | ||
84 | /* initialize the arch-specific accel CpuClass interfaces */ | |
85 | static void accel_init_cpu_interfaces(AccelClass *ac) | |
86 | { | |
87 | const char *ac_name; /* AccelClass name */ | |
88 | char *acc_name; /* AccelCPUClass name */ | |
89 | ObjectClass *acc; /* AccelCPUClass */ | |
90 | ||
91 | ac_name = object_class_get_name(OBJECT_CLASS(ac)); | |
92 | g_assert(ac_name != NULL); | |
93 | ||
94 | acc_name = g_strdup_printf("%s-%s", ac_name, CPU_RESOLVING_TYPE); | |
95 | acc = object_class_by_name(acc_name); | |
96 | g_free(acc_name); | |
97 | ||
98 | if (acc) { | |
99 | object_class_foreach(accel_init_cpu_int_aux, | |
100 | CPU_RESOLVING_TYPE, false, acc); | |
101 | } | |
102 | } | |
103 | ||
b86f59c7 CF |
104 | void accel_init_interfaces(AccelClass *ac) |
105 | { | |
106 | #ifndef CONFIG_USER_ONLY | |
107 | accel_init_ops_interfaces(ac); | |
108 | #endif /* !CONFIG_USER_ONLY */ | |
fb6916dd CF |
109 | |
110 | accel_init_cpu_interfaces(ac); | |
b86f59c7 CF |
111 | } |
112 | ||
bb883fd6 CF |
113 | void accel_cpu_instance_init(CPUState *cpu) |
114 | { | |
115 | CPUClass *cc = CPU_GET_CLASS(cpu); | |
116 | ||
117 | if (cc->accel_cpu && cc->accel_cpu->cpu_instance_init) { | |
118 | cc->accel_cpu->cpu_instance_init(cpu); | |
119 | } | |
120 | } | |
121 | ||
bd684b2f | 122 | bool accel_cpu_common_realize(CPUState *cpu, Error **errp) |
bb883fd6 CF |
123 | { |
124 | CPUClass *cc = CPU_GET_CLASS(cpu); | |
59851868 PMD |
125 | AccelState *accel = current_accel(); |
126 | AccelClass *acc = ACCEL_GET_CLASS(accel); | |
bb883fd6 | 127 | |
59851868 PMD |
128 | /* target specific realization */ |
129 | if (cc->accel_cpu && cc->accel_cpu->cpu_target_realize | |
130 | && !cc->accel_cpu->cpu_target_realize(cpu, errp)) { | |
131 | return false; | |
bb883fd6 | 132 | } |
59851868 PMD |
133 | |
134 | /* generic realization */ | |
135 | if (acc->cpu_common_realize && !acc->cpu_common_realize(cpu, errp)) { | |
136 | return false; | |
137 | } | |
138 | ||
9ea057dc | 139 | return true; |
bb883fd6 CF |
140 | } |
141 | ||
1aa1d830 PMD |
142 | void accel_cpu_common_unrealize(CPUState *cpu) |
143 | { | |
59851868 PMD |
144 | AccelState *accel = current_accel(); |
145 | AccelClass *acc = ACCEL_GET_CLASS(accel); | |
146 | ||
147 | /* generic unrealization */ | |
148 | if (acc->cpu_common_unrealize) { | |
149 | acc->cpu_common_unrealize(cpu); | |
150 | } | |
1aa1d830 PMD |
151 | } |
152 | ||
3b7a9388 AB |
153 | int accel_supported_gdbstub_sstep_flags(void) |
154 | { | |
155 | AccelState *accel = current_accel(); | |
156 | AccelClass *acc = ACCEL_GET_CLASS(accel); | |
157 | if (acc->gdbstub_supported_sstep_flags) { | |
158 | return acc->gdbstub_supported_sstep_flags(); | |
159 | } | |
160 | return 0; | |
161 | } | |
162 | ||
fb6916dd CF |
163 | static const TypeInfo accel_cpu_type = { |
164 | .name = TYPE_ACCEL_CPU, | |
165 | .parent = TYPE_OBJECT, | |
166 | .abstract = true, | |
167 | .class_size = sizeof(AccelCPUClass), | |
168 | }; | |
169 | ||
b14a0b74 EH |
170 | static void register_accel_types(void) |
171 | { | |
172 | type_register_static(&accel_type); | |
fb6916dd | 173 | type_register_static(&accel_cpu_type); |
b14a0b74 EH |
174 | } |
175 | ||
176 | type_init(register_accel_types); |