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f5cc5a5c CF |
1 | /* |
2 | * x86 HVF CPU type initialization | |
3 | * | |
4 | * Copyright 2021 SUSE LLC | |
5 | * | |
6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
7 | * See the COPYING file in the top-level directory. | |
8 | */ | |
9 | ||
10 | #include "qemu/osdep.h" | |
11 | #include "cpu.h" | |
12 | #include "host-cpu.h" | |
13 | #include "qapi/error.h" | |
14 | #include "sysemu/sysemu.h" | |
15 | #include "hw/boards.h" | |
16 | #include "sysemu/hvf.h" | |
17 | #include "hw/core/accel-cpu.h" | |
044431cf | 18 | #include "hvf-i386.h" |
f5cc5a5c CF |
19 | |
20 | static void hvf_cpu_max_instance_init(X86CPU *cpu) | |
21 | { | |
22 | CPUX86State *env = &cpu->env; | |
23 | ||
24 | host_cpu_max_instance_init(cpu); | |
25 | ||
26 | env->cpuid_min_level = | |
27 | hvf_get_supported_cpuid(0x0, 0, R_EAX); | |
28 | env->cpuid_min_xlevel = | |
29 | hvf_get_supported_cpuid(0x80000000, 0, R_EAX); | |
30 | env->cpuid_min_xlevel2 = | |
31 | hvf_get_supported_cpuid(0xC0000000, 0, R_EAX); | |
32 | } | |
33 | ||
fea45008 DE |
34 | static void hvf_cpu_xsave_init(void) |
35 | { | |
36 | static bool first = true; | |
37 | int i; | |
38 | ||
39 | if (!first) { | |
40 | return; | |
41 | } | |
42 | first = false; | |
43 | ||
44 | /* x87 and SSE states are in the legacy region of the XSAVE area. */ | |
45 | x86_ext_save_areas[XSTATE_FP_BIT].offset = 0; | |
46 | x86_ext_save_areas[XSTATE_SSE_BIT].offset = 0; | |
47 | ||
48 | for (i = XSTATE_SSE_BIT + 1; i < XSAVE_STATE_AREA_COUNT; i++) { | |
49 | ExtSaveArea *esa = &x86_ext_save_areas[i]; | |
50 | ||
51 | if (esa->size) { | |
52 | int sz = hvf_get_supported_cpuid(0xd, i, R_EAX); | |
53 | if (sz != 0) { | |
54 | assert(esa->size == sz); | |
55 | esa->offset = hvf_get_supported_cpuid(0xd, i, R_EBX); | |
56 | } | |
57 | } | |
58 | } | |
59 | } | |
60 | ||
f5cc5a5c CF |
61 | static void hvf_cpu_instance_init(CPUState *cs) |
62 | { | |
63 | X86CPU *cpu = X86_CPU(cs); | |
64 | ||
65 | host_cpu_instance_init(cpu); | |
66 | ||
67 | /* Special cases not set in the X86CPUDefinition structs: */ | |
68 | /* TODO: in-kernel irqchip for hvf */ | |
69 | ||
70 | if (cpu->max_features) { | |
71 | hvf_cpu_max_instance_init(cpu); | |
72 | } | |
fea45008 DE |
73 | |
74 | hvf_cpu_xsave_init(); | |
f5cc5a5c CF |
75 | } |
76 | ||
77 | static void hvf_cpu_accel_class_init(ObjectClass *oc, void *data) | |
78 | { | |
79 | AccelCPUClass *acc = ACCEL_CPU_CLASS(oc); | |
80 | ||
6294e502 | 81 | acc->cpu_target_realize = host_cpu_realizefn; |
f5cc5a5c CF |
82 | acc->cpu_instance_init = hvf_cpu_instance_init; |
83 | } | |
84 | ||
85 | static const TypeInfo hvf_cpu_accel_type_info = { | |
86 | .name = ACCEL_CPU_NAME("hvf"), | |
87 | ||
88 | .parent = TYPE_ACCEL_CPU, | |
89 | .class_init = hvf_cpu_accel_class_init, | |
90 | .abstract = true, | |
91 | }; | |
92 | ||
93 | static void hvf_cpu_accel_register_types(void) | |
94 | { | |
95 | type_register_static(&hvf_cpu_accel_type_info); | |
96 | } | |
97 | ||
98 | type_init(hvf_cpu_accel_register_types); |