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1 | 05330448 | aliguori | /*
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2 | 05330448 | aliguori | * QEMU KVM support
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3 | 05330448 | aliguori | *
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4 | 05330448 | aliguori | * Copyright (C) 2006-2008 Qumranet Technologies
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5 | 05330448 | aliguori | * Copyright IBM, Corp. 2008
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6 | 05330448 | aliguori | *
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7 | 05330448 | aliguori | * Authors:
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8 | 05330448 | aliguori | * Anthony Liguori <aliguori@us.ibm.com>
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9 | 05330448 | aliguori | *
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10 | 05330448 | aliguori | * This work is licensed under the terms of the GNU GPL, version 2 or later.
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11 | 05330448 | aliguori | * See the COPYING file in the top-level directory.
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12 | 05330448 | aliguori | *
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13 | 05330448 | aliguori | */
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14 | 05330448 | aliguori | |
15 | 05330448 | aliguori | #include <sys/types.h> |
16 | 05330448 | aliguori | #include <sys/ioctl.h> |
17 | 05330448 | aliguori | #include <sys/mman.h> |
18 | 05330448 | aliguori | |
19 | 05330448 | aliguori | #include <linux/kvm.h> |
20 | 05330448 | aliguori | |
21 | 05330448 | aliguori | #include "qemu-common.h" |
22 | 05330448 | aliguori | #include "sysemu.h" |
23 | 05330448 | aliguori | #include "kvm.h" |
24 | 05330448 | aliguori | #include "cpu.h" |
25 | e22a25c9 | aliguori | #include "gdbstub.h" |
26 | 0e607a80 | Jan Kiszka | #include "host-utils.h" |
27 | 4c5b10b7 | Jes Sorensen | #include "hw/pc.h" |
28 | 408392b3 | Sheng Yang | #include "hw/apic.h" |
29 | 35bed8ee | Paul Brook | #include "ioport.h" |
30 | e7701825 | Marcelo Tosatti | #include "kvm_x86.h" |
31 | 05330448 | aliguori | |
32 | bb0300dc | Gleb Natapov | #ifdef CONFIG_KVM_PARA
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33 | bb0300dc | Gleb Natapov | #include <linux/kvm_para.h> |
34 | bb0300dc | Gleb Natapov | #endif
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35 | bb0300dc | Gleb Natapov | //
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36 | 05330448 | aliguori | //#define DEBUG_KVM
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37 | 05330448 | aliguori | |
38 | 05330448 | aliguori | #ifdef DEBUG_KVM
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39 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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40 | 05330448 | aliguori | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
41 | 05330448 | aliguori | #else
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42 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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43 | 05330448 | aliguori | do { } while (0) |
44 | 05330448 | aliguori | #endif
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45 | 05330448 | aliguori | |
46 | 1a03675d | Glauber Costa | #define MSR_KVM_WALL_CLOCK 0x11 |
47 | 1a03675d | Glauber Costa | #define MSR_KVM_SYSTEM_TIME 0x12 |
48 | 1a03675d | Glauber Costa | |
49 | b827df58 | Avi Kivity | #ifdef KVM_CAP_EXT_CPUID
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50 | b827df58 | Avi Kivity | |
51 | b827df58 | Avi Kivity | static struct kvm_cpuid2 *try_get_cpuid(KVMState *s, int max) |
52 | b827df58 | Avi Kivity | { |
53 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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54 | b827df58 | Avi Kivity | int r, size;
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55 | b827df58 | Avi Kivity | |
56 | b827df58 | Avi Kivity | size = sizeof(*cpuid) + max * sizeof(*cpuid->entries); |
57 | b827df58 | Avi Kivity | cpuid = (struct kvm_cpuid2 *)qemu_mallocz(size);
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58 | b827df58 | Avi Kivity | cpuid->nent = max; |
59 | b827df58 | Avi Kivity | r = kvm_ioctl(s, KVM_GET_SUPPORTED_CPUID, cpuid); |
60 | 76ae317f | Mark McLoughlin | if (r == 0 && cpuid->nent >= max) { |
61 | 76ae317f | Mark McLoughlin | r = -E2BIG; |
62 | 76ae317f | Mark McLoughlin | } |
63 | b827df58 | Avi Kivity | if (r < 0) { |
64 | b827df58 | Avi Kivity | if (r == -E2BIG) {
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65 | b827df58 | Avi Kivity | qemu_free(cpuid); |
66 | b827df58 | Avi Kivity | return NULL; |
67 | b827df58 | Avi Kivity | } else {
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68 | b827df58 | Avi Kivity | fprintf(stderr, "KVM_GET_SUPPORTED_CPUID failed: %s\n",
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69 | b827df58 | Avi Kivity | strerror(-r)); |
70 | b827df58 | Avi Kivity | exit(1);
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71 | b827df58 | Avi Kivity | } |
72 | b827df58 | Avi Kivity | } |
73 | b827df58 | Avi Kivity | return cpuid;
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74 | b827df58 | Avi Kivity | } |
75 | b827df58 | Avi Kivity | |
76 | c958a8bd | Sheng Yang | uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function, |
77 | c958a8bd | Sheng Yang | uint32_t index, int reg)
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78 | b827df58 | Avi Kivity | { |
79 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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80 | b827df58 | Avi Kivity | int i, max;
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81 | b827df58 | Avi Kivity | uint32_t ret = 0;
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82 | b827df58 | Avi Kivity | uint32_t cpuid_1_edx; |
83 | b827df58 | Avi Kivity | |
84 | b827df58 | Avi Kivity | if (!kvm_check_extension(env->kvm_state, KVM_CAP_EXT_CPUID)) {
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85 | b827df58 | Avi Kivity | return -1U; |
86 | b827df58 | Avi Kivity | } |
87 | b827df58 | Avi Kivity | |
88 | b827df58 | Avi Kivity | max = 1;
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89 | b827df58 | Avi Kivity | while ((cpuid = try_get_cpuid(env->kvm_state, max)) == NULL) { |
90 | b827df58 | Avi Kivity | max *= 2;
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91 | b827df58 | Avi Kivity | } |
92 | b827df58 | Avi Kivity | |
93 | b827df58 | Avi Kivity | for (i = 0; i < cpuid->nent; ++i) { |
94 | c958a8bd | Sheng Yang | if (cpuid->entries[i].function == function &&
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95 | c958a8bd | Sheng Yang | cpuid->entries[i].index == index) { |
96 | b827df58 | Avi Kivity | switch (reg) {
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97 | b827df58 | Avi Kivity | case R_EAX:
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98 | b827df58 | Avi Kivity | ret = cpuid->entries[i].eax; |
99 | b827df58 | Avi Kivity | break;
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100 | b827df58 | Avi Kivity | case R_EBX:
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101 | b827df58 | Avi Kivity | ret = cpuid->entries[i].ebx; |
102 | b827df58 | Avi Kivity | break;
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103 | b827df58 | Avi Kivity | case R_ECX:
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104 | b827df58 | Avi Kivity | ret = cpuid->entries[i].ecx; |
105 | b827df58 | Avi Kivity | break;
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106 | b827df58 | Avi Kivity | case R_EDX:
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107 | b827df58 | Avi Kivity | ret = cpuid->entries[i].edx; |
108 | 19ccb8ea | Jan Kiszka | switch (function) {
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109 | 19ccb8ea | Jan Kiszka | case 1: |
110 | 19ccb8ea | Jan Kiszka | /* KVM before 2.6.30 misreports the following features */
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111 | 19ccb8ea | Jan Kiszka | ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA; |
112 | 19ccb8ea | Jan Kiszka | break;
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113 | 19ccb8ea | Jan Kiszka | case 0x80000001: |
114 | b827df58 | Avi Kivity | /* On Intel, kvm returns cpuid according to the Intel spec,
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115 | b827df58 | Avi Kivity | * so add missing bits according to the AMD spec:
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116 | b827df58 | Avi Kivity | */
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117 | c958a8bd | Sheng Yang | cpuid_1_edx = kvm_arch_get_supported_cpuid(env, 1, 0, R_EDX); |
118 | c1667e40 | Gleb Natapov | ret |= cpuid_1_edx & 0x183f7ff;
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119 | 19ccb8ea | Jan Kiszka | break;
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120 | b827df58 | Avi Kivity | } |
121 | b827df58 | Avi Kivity | break;
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122 | b827df58 | Avi Kivity | } |
123 | b827df58 | Avi Kivity | } |
124 | b827df58 | Avi Kivity | } |
125 | b827df58 | Avi Kivity | |
126 | b827df58 | Avi Kivity | qemu_free(cpuid); |
127 | b827df58 | Avi Kivity | |
128 | b827df58 | Avi Kivity | return ret;
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129 | b827df58 | Avi Kivity | } |
130 | b827df58 | Avi Kivity | |
131 | b827df58 | Avi Kivity | #else
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132 | b827df58 | Avi Kivity | |
133 | c958a8bd | Sheng Yang | uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function, |
134 | c958a8bd | Sheng Yang | uint32_t index, int reg)
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135 | b827df58 | Avi Kivity | { |
136 | b827df58 | Avi Kivity | return -1U; |
137 | b827df58 | Avi Kivity | } |
138 | b827df58 | Avi Kivity | |
139 | b827df58 | Avi Kivity | #endif
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140 | b827df58 | Avi Kivity | |
141 | bb0300dc | Gleb Natapov | #ifdef CONFIG_KVM_PARA
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142 | bb0300dc | Gleb Natapov | struct kvm_para_features {
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143 | bb0300dc | Gleb Natapov | int cap;
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144 | bb0300dc | Gleb Natapov | int feature;
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145 | bb0300dc | Gleb Natapov | } para_features[] = { |
146 | bb0300dc | Gleb Natapov | #ifdef KVM_CAP_CLOCKSOURCE
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147 | bb0300dc | Gleb Natapov | { KVM_CAP_CLOCKSOURCE, KVM_FEATURE_CLOCKSOURCE }, |
148 | bb0300dc | Gleb Natapov | #endif
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149 | bb0300dc | Gleb Natapov | #ifdef KVM_CAP_NOP_IO_DELAY
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150 | bb0300dc | Gleb Natapov | { KVM_CAP_NOP_IO_DELAY, KVM_FEATURE_NOP_IO_DELAY }, |
151 | bb0300dc | Gleb Natapov | #endif
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152 | bb0300dc | Gleb Natapov | #ifdef KVM_CAP_PV_MMU
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153 | bb0300dc | Gleb Natapov | { KVM_CAP_PV_MMU, KVM_FEATURE_MMU_OP }, |
154 | bb0300dc | Gleb Natapov | #endif
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155 | bb0300dc | Gleb Natapov | { -1, -1 } |
156 | bb0300dc | Gleb Natapov | }; |
157 | bb0300dc | Gleb Natapov | |
158 | bb0300dc | Gleb Natapov | static int get_para_features(CPUState *env) |
159 | bb0300dc | Gleb Natapov | { |
160 | bb0300dc | Gleb Natapov | int i, features = 0; |
161 | bb0300dc | Gleb Natapov | |
162 | bb0300dc | Gleb Natapov | for (i = 0; i < ARRAY_SIZE(para_features) - 1; i++) { |
163 | bb0300dc | Gleb Natapov | if (kvm_check_extension(env->kvm_state, para_features[i].cap))
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164 | bb0300dc | Gleb Natapov | features |= (1 << para_features[i].feature);
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165 | bb0300dc | Gleb Natapov | } |
166 | bb0300dc | Gleb Natapov | |
167 | bb0300dc | Gleb Natapov | return features;
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168 | bb0300dc | Gleb Natapov | } |
169 | bb0300dc | Gleb Natapov | #endif
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170 | bb0300dc | Gleb Natapov | |
171 | e7701825 | Marcelo Tosatti | #ifdef KVM_CAP_MCE
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172 | e7701825 | Marcelo Tosatti | static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap, |
173 | e7701825 | Marcelo Tosatti | int *max_banks)
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174 | e7701825 | Marcelo Tosatti | { |
175 | e7701825 | Marcelo Tosatti | int r;
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176 | e7701825 | Marcelo Tosatti | |
177 | e7701825 | Marcelo Tosatti | r = kvm_ioctl(s, KVM_CHECK_EXTENSION, KVM_CAP_MCE); |
178 | e7701825 | Marcelo Tosatti | if (r > 0) { |
179 | e7701825 | Marcelo Tosatti | *max_banks = r; |
180 | e7701825 | Marcelo Tosatti | return kvm_ioctl(s, KVM_X86_GET_MCE_CAP_SUPPORTED, mce_cap);
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181 | e7701825 | Marcelo Tosatti | } |
182 | e7701825 | Marcelo Tosatti | return -ENOSYS;
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183 | e7701825 | Marcelo Tosatti | } |
184 | e7701825 | Marcelo Tosatti | |
185 | e7701825 | Marcelo Tosatti | static int kvm_setup_mce(CPUState *env, uint64_t *mcg_cap) |
186 | e7701825 | Marcelo Tosatti | { |
187 | e7701825 | Marcelo Tosatti | return kvm_vcpu_ioctl(env, KVM_X86_SETUP_MCE, mcg_cap);
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188 | e7701825 | Marcelo Tosatti | } |
189 | e7701825 | Marcelo Tosatti | |
190 | e7701825 | Marcelo Tosatti | static int kvm_set_mce(CPUState *env, struct kvm_x86_mce *m) |
191 | e7701825 | Marcelo Tosatti | { |
192 | e7701825 | Marcelo Tosatti | return kvm_vcpu_ioctl(env, KVM_X86_SET_MCE, m);
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193 | e7701825 | Marcelo Tosatti | } |
194 | e7701825 | Marcelo Tosatti | |
195 | e7701825 | Marcelo Tosatti | struct kvm_x86_mce_data
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196 | e7701825 | Marcelo Tosatti | { |
197 | e7701825 | Marcelo Tosatti | CPUState *env; |
198 | e7701825 | Marcelo Tosatti | struct kvm_x86_mce *mce;
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199 | e7701825 | Marcelo Tosatti | }; |
200 | e7701825 | Marcelo Tosatti | |
201 | e7701825 | Marcelo Tosatti | static void kvm_do_inject_x86_mce(void *_data) |
202 | e7701825 | Marcelo Tosatti | { |
203 | e7701825 | Marcelo Tosatti | struct kvm_x86_mce_data *data = _data;
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204 | e7701825 | Marcelo Tosatti | int r;
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205 | e7701825 | Marcelo Tosatti | |
206 | e7701825 | Marcelo Tosatti | r = kvm_set_mce(data->env, data->mce); |
207 | e7701825 | Marcelo Tosatti | if (r < 0) |
208 | e7701825 | Marcelo Tosatti | perror("kvm_set_mce FAILED");
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209 | e7701825 | Marcelo Tosatti | } |
210 | e7701825 | Marcelo Tosatti | #endif
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211 | e7701825 | Marcelo Tosatti | |
212 | e7701825 | Marcelo Tosatti | void kvm_inject_x86_mce(CPUState *cenv, int bank, uint64_t status, |
213 | e7701825 | Marcelo Tosatti | uint64_t mcg_status, uint64_t addr, uint64_t misc) |
214 | e7701825 | Marcelo Tosatti | { |
215 | e7701825 | Marcelo Tosatti | #ifdef KVM_CAP_MCE
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216 | e7701825 | Marcelo Tosatti | struct kvm_x86_mce mce = {
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217 | e7701825 | Marcelo Tosatti | .bank = bank, |
218 | e7701825 | Marcelo Tosatti | .status = status, |
219 | e7701825 | Marcelo Tosatti | .mcg_status = mcg_status, |
220 | e7701825 | Marcelo Tosatti | .addr = addr, |
221 | e7701825 | Marcelo Tosatti | .misc = misc, |
222 | e7701825 | Marcelo Tosatti | }; |
223 | e7701825 | Marcelo Tosatti | struct kvm_x86_mce_data data = {
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224 | e7701825 | Marcelo Tosatti | .env = cenv, |
225 | e7701825 | Marcelo Tosatti | .mce = &mce, |
226 | e7701825 | Marcelo Tosatti | }; |
227 | e7701825 | Marcelo Tosatti | |
228 | e7701825 | Marcelo Tosatti | run_on_cpu(cenv, kvm_do_inject_x86_mce, &data); |
229 | e7701825 | Marcelo Tosatti | #endif
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230 | e7701825 | Marcelo Tosatti | } |
231 | e7701825 | Marcelo Tosatti | |
232 | 05330448 | aliguori | int kvm_arch_init_vcpu(CPUState *env)
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233 | 05330448 | aliguori | { |
234 | 05330448 | aliguori | struct {
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235 | 486bd5a2 | aliguori | struct kvm_cpuid2 cpuid;
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236 | 486bd5a2 | aliguori | struct kvm_cpuid_entry2 entries[100]; |
237 | 05330448 | aliguori | } __attribute__((packed)) cpuid_data; |
238 | 486bd5a2 | aliguori | uint32_t limit, i, j, cpuid_i; |
239 | a33609ca | aliguori | uint32_t unused; |
240 | bb0300dc | Gleb Natapov | struct kvm_cpuid_entry2 *c;
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241 | bb0300dc | Gleb Natapov | #ifdef KVM_CPUID_SIGNATURE
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242 | bb0300dc | Gleb Natapov | uint32_t signature[3];
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243 | bb0300dc | Gleb Natapov | #endif
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244 | 05330448 | aliguori | |
245 | f8d926e9 | Jan Kiszka | env->mp_state = KVM_MP_STATE_RUNNABLE; |
246 | f8d926e9 | Jan Kiszka | |
247 | c958a8bd | Sheng Yang | env->cpuid_features &= kvm_arch_get_supported_cpuid(env, 1, 0, R_EDX); |
248 | 6c0d7ee8 | Andre Przywara | |
249 | 6c0d7ee8 | Andre Przywara | i = env->cpuid_ext_features & CPUID_EXT_HYPERVISOR; |
250 | c958a8bd | Sheng Yang | env->cpuid_ext_features &= kvm_arch_get_supported_cpuid(env, 1, 0, R_ECX); |
251 | 6c0d7ee8 | Andre Przywara | env->cpuid_ext_features |= i; |
252 | 6c0d7ee8 | Andre Przywara | |
253 | 457dfed6 | Andre Przywara | env->cpuid_ext2_features &= kvm_arch_get_supported_cpuid(env, 0x80000001,
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254 | c958a8bd | Sheng Yang | 0, R_EDX);
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255 | 457dfed6 | Andre Przywara | env->cpuid_ext3_features &= kvm_arch_get_supported_cpuid(env, 0x80000001,
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256 | c958a8bd | Sheng Yang | 0, R_ECX);
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257 | 296acb64 | Joerg Roedel | env->cpuid_svm_features &= kvm_arch_get_supported_cpuid(env, 0x8000000A,
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258 | 296acb64 | Joerg Roedel | 0, R_EDX);
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259 | 296acb64 | Joerg Roedel | |
260 | 6c1f42fe | Andre Przywara | |
261 | 05330448 | aliguori | cpuid_i = 0;
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262 | 05330448 | aliguori | |
263 | bb0300dc | Gleb Natapov | #ifdef CONFIG_KVM_PARA
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264 | bb0300dc | Gleb Natapov | /* Paravirtualization CPUIDs */
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265 | bb0300dc | Gleb Natapov | memcpy(signature, "KVMKVMKVM\0\0\0", 12); |
266 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
267 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
268 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_SIGNATURE; |
269 | bb0300dc | Gleb Natapov | c->eax = 0;
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270 | bb0300dc | Gleb Natapov | c->ebx = signature[0];
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271 | bb0300dc | Gleb Natapov | c->ecx = signature[1];
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272 | bb0300dc | Gleb Natapov | c->edx = signature[2];
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273 | bb0300dc | Gleb Natapov | |
274 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
275 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
276 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_FEATURES; |
277 | bb0300dc | Gleb Natapov | c->eax = env->cpuid_kvm_features & get_para_features(env); |
278 | bb0300dc | Gleb Natapov | #endif
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279 | bb0300dc | Gleb Natapov | |
280 | a33609ca | aliguori | cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); |
281 | 05330448 | aliguori | |
282 | 05330448 | aliguori | for (i = 0; i <= limit; i++) { |
283 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
284 | 486bd5a2 | aliguori | |
285 | 486bd5a2 | aliguori | switch (i) {
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286 | a36b1029 | aliguori | case 2: { |
287 | a36b1029 | aliguori | /* Keep reading function 2 till all the input is received */
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288 | a36b1029 | aliguori | int times;
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289 | a36b1029 | aliguori | |
290 | a36b1029 | aliguori | c->function = i; |
291 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC | |
292 | a33609ca | aliguori | KVM_CPUID_FLAG_STATE_READ_NEXT; |
293 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
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294 | a33609ca | aliguori | times = c->eax & 0xff;
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295 | a36b1029 | aliguori | |
296 | a36b1029 | aliguori | for (j = 1; j < times; ++j) { |
297 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
298 | a36b1029 | aliguori | c->function = i; |
299 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC; |
300 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
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301 | a36b1029 | aliguori | } |
302 | a36b1029 | aliguori | break;
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303 | a36b1029 | aliguori | } |
304 | 486bd5a2 | aliguori | case 4: |
305 | 486bd5a2 | aliguori | case 0xb: |
306 | 486bd5a2 | aliguori | case 0xd: |
307 | 486bd5a2 | aliguori | for (j = 0; ; j++) { |
308 | 486bd5a2 | aliguori | c->function = i; |
309 | 486bd5a2 | aliguori | c->flags = KVM_CPUID_FLAG_SIGNIFCANT_INDEX; |
310 | 486bd5a2 | aliguori | c->index = j; |
311 | a33609ca | aliguori | cpu_x86_cpuid(env, i, j, &c->eax, &c->ebx, &c->ecx, &c->edx); |
312 | 486bd5a2 | aliguori | |
313 | a33609ca | aliguori | if (i == 4 && c->eax == 0) |
314 | 486bd5a2 | aliguori | break;
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315 | a33609ca | aliguori | if (i == 0xb && !(c->ecx & 0xff00)) |
316 | 486bd5a2 | aliguori | break;
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317 | a33609ca | aliguori | if (i == 0xd && c->eax == 0) |
318 | 486bd5a2 | aliguori | break;
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319 | a33609ca | aliguori | |
320 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
321 | 486bd5a2 | aliguori | } |
322 | 486bd5a2 | aliguori | break;
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323 | 486bd5a2 | aliguori | default:
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324 | 486bd5a2 | aliguori | c->function = i; |
325 | a33609ca | aliguori | c->flags = 0;
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326 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
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327 | 486bd5a2 | aliguori | break;
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328 | 486bd5a2 | aliguori | } |
329 | 05330448 | aliguori | } |
330 | a33609ca | aliguori | cpu_x86_cpuid(env, 0x80000000, 0, &limit, &unused, &unused, &unused); |
331 | 05330448 | aliguori | |
332 | 05330448 | aliguori | for (i = 0x80000000; i <= limit; i++) { |
333 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
334 | 05330448 | aliguori | |
335 | 05330448 | aliguori | c->function = i; |
336 | a33609ca | aliguori | c->flags = 0;
|
337 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
338 | 05330448 | aliguori | } |
339 | 05330448 | aliguori | |
340 | 05330448 | aliguori | cpuid_data.cpuid.nent = cpuid_i; |
341 | 05330448 | aliguori | |
342 | e7701825 | Marcelo Tosatti | #ifdef KVM_CAP_MCE
|
343 | e7701825 | Marcelo Tosatti | if (((env->cpuid_version >> 8)&0xF) >= 6 |
344 | e7701825 | Marcelo Tosatti | && (env->cpuid_features&(CPUID_MCE|CPUID_MCA)) == (CPUID_MCE|CPUID_MCA) |
345 | e7701825 | Marcelo Tosatti | && kvm_check_extension(env->kvm_state, KVM_CAP_MCE) > 0) {
|
346 | e7701825 | Marcelo Tosatti | uint64_t mcg_cap; |
347 | e7701825 | Marcelo Tosatti | int banks;
|
348 | e7701825 | Marcelo Tosatti | |
349 | e7701825 | Marcelo Tosatti | if (kvm_get_mce_cap_supported(env->kvm_state, &mcg_cap, &banks))
|
350 | e7701825 | Marcelo Tosatti | perror("kvm_get_mce_cap_supported FAILED");
|
351 | e7701825 | Marcelo Tosatti | else {
|
352 | e7701825 | Marcelo Tosatti | if (banks > MCE_BANKS_DEF)
|
353 | e7701825 | Marcelo Tosatti | banks = MCE_BANKS_DEF; |
354 | e7701825 | Marcelo Tosatti | mcg_cap &= MCE_CAP_DEF; |
355 | e7701825 | Marcelo Tosatti | mcg_cap |= banks; |
356 | e7701825 | Marcelo Tosatti | if (kvm_setup_mce(env, &mcg_cap))
|
357 | e7701825 | Marcelo Tosatti | perror("kvm_setup_mce FAILED");
|
358 | e7701825 | Marcelo Tosatti | else
|
359 | e7701825 | Marcelo Tosatti | env->mcg_cap = mcg_cap; |
360 | e7701825 | Marcelo Tosatti | } |
361 | e7701825 | Marcelo Tosatti | } |
362 | e7701825 | Marcelo Tosatti | #endif
|
363 | e7701825 | Marcelo Tosatti | |
364 | 486bd5a2 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_CPUID2, &cpuid_data);
|
365 | 05330448 | aliguori | } |
366 | 05330448 | aliguori | |
367 | caa5af0f | Jan Kiszka | void kvm_arch_reset_vcpu(CPUState *env)
|
368 | caa5af0f | Jan Kiszka | { |
369 | e73223a5 | Gleb Natapov | env->exception_injected = -1;
|
370 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
371 | a0fb002c | Jan Kiszka | env->nmi_injected = 0;
|
372 | a0fb002c | Jan Kiszka | env->nmi_pending = 0;
|
373 | ddced198 | Marcelo Tosatti | if (kvm_irqchip_in_kernel()) {
|
374 | ddced198 | Marcelo Tosatti | env->mp_state = cpu_is_bsp(env) ? KVM_MP_STATE_RUNNABLE : |
375 | ddced198 | Marcelo Tosatti | KVM_MP_STATE_UNINITIALIZED; |
376 | ddced198 | Marcelo Tosatti | } else {
|
377 | ddced198 | Marcelo Tosatti | env->mp_state = KVM_MP_STATE_RUNNABLE; |
378 | ddced198 | Marcelo Tosatti | } |
379 | caa5af0f | Jan Kiszka | } |
380 | caa5af0f | Jan Kiszka | |
381 | 05330448 | aliguori | static int kvm_has_msr_star(CPUState *env) |
382 | 05330448 | aliguori | { |
383 | 05330448 | aliguori | static int has_msr_star; |
384 | 05330448 | aliguori | int ret;
|
385 | 05330448 | aliguori | |
386 | 05330448 | aliguori | /* first time */
|
387 | 05330448 | aliguori | if (has_msr_star == 0) { |
388 | 05330448 | aliguori | struct kvm_msr_list msr_list, *kvm_msr_list;
|
389 | 05330448 | aliguori | |
390 | 05330448 | aliguori | has_msr_star = -1;
|
391 | 05330448 | aliguori | |
392 | 05330448 | aliguori | /* Obtain MSR list from KVM. These are the MSRs that we must
|
393 | 05330448 | aliguori | * save/restore */
|
394 | 4c9f7372 | aliguori | msr_list.nmsrs = 0;
|
395 | 05330448 | aliguori | ret = kvm_ioctl(env->kvm_state, KVM_GET_MSR_INDEX_LIST, &msr_list); |
396 | 6fb6d245 | Jan Kiszka | if (ret < 0 && ret != -E2BIG) { |
397 | 05330448 | aliguori | return 0; |
398 | 6fb6d245 | Jan Kiszka | } |
399 | d9db889f | Jan Kiszka | /* Old kernel modules had a bug and could write beyond the provided
|
400 | d9db889f | Jan Kiszka | memory. Allocate at least a safe amount of 1K. */
|
401 | d9db889f | Jan Kiszka | kvm_msr_list = qemu_mallocz(MAX(1024, sizeof(msr_list) + |
402 | d9db889f | Jan Kiszka | msr_list.nmsrs * |
403 | d9db889f | Jan Kiszka | sizeof(msr_list.indices[0]))); |
404 | 05330448 | aliguori | |
405 | 55308450 | aliguori | kvm_msr_list->nmsrs = msr_list.nmsrs; |
406 | 05330448 | aliguori | ret = kvm_ioctl(env->kvm_state, KVM_GET_MSR_INDEX_LIST, kvm_msr_list); |
407 | 05330448 | aliguori | if (ret >= 0) { |
408 | 05330448 | aliguori | int i;
|
409 | 05330448 | aliguori | |
410 | 05330448 | aliguori | for (i = 0; i < kvm_msr_list->nmsrs; i++) { |
411 | 05330448 | aliguori | if (kvm_msr_list->indices[i] == MSR_STAR) {
|
412 | 05330448 | aliguori | has_msr_star = 1;
|
413 | 05330448 | aliguori | break;
|
414 | 05330448 | aliguori | } |
415 | 05330448 | aliguori | } |
416 | 05330448 | aliguori | } |
417 | 05330448 | aliguori | |
418 | 05330448 | aliguori | free(kvm_msr_list); |
419 | 05330448 | aliguori | } |
420 | 05330448 | aliguori | |
421 | 05330448 | aliguori | if (has_msr_star == 1) |
422 | 05330448 | aliguori | return 1; |
423 | 05330448 | aliguori | return 0; |
424 | 05330448 | aliguori | } |
425 | 05330448 | aliguori | |
426 | 20420430 | Sheng Yang | static int kvm_init_identity_map_page(KVMState *s) |
427 | 20420430 | Sheng Yang | { |
428 | 20420430 | Sheng Yang | #ifdef KVM_CAP_SET_IDENTITY_MAP_ADDR
|
429 | 20420430 | Sheng Yang | int ret;
|
430 | 20420430 | Sheng Yang | uint64_t addr = 0xfffbc000;
|
431 | 20420430 | Sheng Yang | |
432 | 20420430 | Sheng Yang | if (!kvm_check_extension(s, KVM_CAP_SET_IDENTITY_MAP_ADDR)) {
|
433 | 20420430 | Sheng Yang | return 0; |
434 | 20420430 | Sheng Yang | } |
435 | 20420430 | Sheng Yang | |
436 | 20420430 | Sheng Yang | ret = kvm_vm_ioctl(s, KVM_SET_IDENTITY_MAP_ADDR, &addr); |
437 | 20420430 | Sheng Yang | if (ret < 0) { |
438 | 20420430 | Sheng Yang | fprintf(stderr, "kvm_set_identity_map_addr: %s\n", strerror(ret));
|
439 | 20420430 | Sheng Yang | return ret;
|
440 | 20420430 | Sheng Yang | } |
441 | 20420430 | Sheng Yang | #endif
|
442 | 20420430 | Sheng Yang | return 0; |
443 | 20420430 | Sheng Yang | } |
444 | 20420430 | Sheng Yang | |
445 | 05330448 | aliguori | int kvm_arch_init(KVMState *s, int smp_cpus) |
446 | 05330448 | aliguori | { |
447 | 05330448 | aliguori | int ret;
|
448 | 05330448 | aliguori | |
449 | 05330448 | aliguori | /* create vm86 tss. KVM uses vm86 mode to emulate 16-bit code
|
450 | 05330448 | aliguori | * directly. In order to use vm86 mode, a TSS is needed. Since this
|
451 | 05330448 | aliguori | * must be part of guest physical memory, we need to allocate it. Older
|
452 | 05330448 | aliguori | * versions of KVM just assumed that it would be at the end of physical
|
453 | 05330448 | aliguori | * memory but that doesn't work with more than 4GB of memory. We simply
|
454 | 05330448 | aliguori | * refuse to work with those older versions of KVM. */
|
455 | 984b5181 | aliguori | ret = kvm_ioctl(s, KVM_CHECK_EXTENSION, KVM_CAP_SET_TSS_ADDR); |
456 | 05330448 | aliguori | if (ret <= 0) { |
457 | 05330448 | aliguori | fprintf(stderr, "kvm does not support KVM_CAP_SET_TSS_ADDR\n");
|
458 | 05330448 | aliguori | return ret;
|
459 | 05330448 | aliguori | } |
460 | 05330448 | aliguori | |
461 | 05330448 | aliguori | /* this address is 3 pages before the bios, and the bios should present
|
462 | 05330448 | aliguori | * as unavaible memory. FIXME, need to ensure the e820 map deals with
|
463 | 05330448 | aliguori | * this?
|
464 | 05330448 | aliguori | */
|
465 | 4c5b10b7 | Jes Sorensen | /*
|
466 | 4c5b10b7 | Jes Sorensen | * Tell fw_cfg to notify the BIOS to reserve the range.
|
467 | 4c5b10b7 | Jes Sorensen | */
|
468 | 4c5b10b7 | Jes Sorensen | if (e820_add_entry(0xfffbc000, 0x4000, E820_RESERVED) < 0) { |
469 | 4c5b10b7 | Jes Sorensen | perror("e820_add_entry() table is full");
|
470 | 4c5b10b7 | Jes Sorensen | exit(1);
|
471 | 4c5b10b7 | Jes Sorensen | } |
472 | 20420430 | Sheng Yang | ret = kvm_vm_ioctl(s, KVM_SET_TSS_ADDR, 0xfffbd000);
|
473 | 20420430 | Sheng Yang | if (ret < 0) { |
474 | 20420430 | Sheng Yang | return ret;
|
475 | 20420430 | Sheng Yang | } |
476 | 20420430 | Sheng Yang | |
477 | 20420430 | Sheng Yang | return kvm_init_identity_map_page(s);
|
478 | 05330448 | aliguori | } |
479 | 05330448 | aliguori | |
480 | 05330448 | aliguori | static void set_v8086_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
481 | 05330448 | aliguori | { |
482 | 05330448 | aliguori | lhs->selector = rhs->selector; |
483 | 05330448 | aliguori | lhs->base = rhs->base; |
484 | 05330448 | aliguori | lhs->limit = rhs->limit; |
485 | 05330448 | aliguori | lhs->type = 3;
|
486 | 05330448 | aliguori | lhs->present = 1;
|
487 | 05330448 | aliguori | lhs->dpl = 3;
|
488 | 05330448 | aliguori | lhs->db = 0;
|
489 | 05330448 | aliguori | lhs->s = 1;
|
490 | 05330448 | aliguori | lhs->l = 0;
|
491 | 05330448 | aliguori | lhs->g = 0;
|
492 | 05330448 | aliguori | lhs->avl = 0;
|
493 | 05330448 | aliguori | lhs->unusable = 0;
|
494 | 05330448 | aliguori | } |
495 | 05330448 | aliguori | |
496 | 05330448 | aliguori | static void set_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
497 | 05330448 | aliguori | { |
498 | 05330448 | aliguori | unsigned flags = rhs->flags;
|
499 | 05330448 | aliguori | lhs->selector = rhs->selector; |
500 | 05330448 | aliguori | lhs->base = rhs->base; |
501 | 05330448 | aliguori | lhs->limit = rhs->limit; |
502 | 05330448 | aliguori | lhs->type = (flags >> DESC_TYPE_SHIFT) & 15;
|
503 | 05330448 | aliguori | lhs->present = (flags & DESC_P_MASK) != 0;
|
504 | 05330448 | aliguori | lhs->dpl = rhs->selector & 3;
|
505 | 05330448 | aliguori | lhs->db = (flags >> DESC_B_SHIFT) & 1;
|
506 | 05330448 | aliguori | lhs->s = (flags & DESC_S_MASK) != 0;
|
507 | 05330448 | aliguori | lhs->l = (flags >> DESC_L_SHIFT) & 1;
|
508 | 05330448 | aliguori | lhs->g = (flags & DESC_G_MASK) != 0;
|
509 | 05330448 | aliguori | lhs->avl = (flags & DESC_AVL_MASK) != 0;
|
510 | 05330448 | aliguori | lhs->unusable = 0;
|
511 | 05330448 | aliguori | } |
512 | 05330448 | aliguori | |
513 | 05330448 | aliguori | static void get_seg(SegmentCache *lhs, const struct kvm_segment *rhs) |
514 | 05330448 | aliguori | { |
515 | 05330448 | aliguori | lhs->selector = rhs->selector; |
516 | 05330448 | aliguori | lhs->base = rhs->base; |
517 | 05330448 | aliguori | lhs->limit = rhs->limit; |
518 | 05330448 | aliguori | lhs->flags = |
519 | 05330448 | aliguori | (rhs->type << DESC_TYPE_SHIFT) |
520 | 05330448 | aliguori | | (rhs->present * DESC_P_MASK) |
521 | 05330448 | aliguori | | (rhs->dpl << DESC_DPL_SHIFT) |
522 | 05330448 | aliguori | | (rhs->db << DESC_B_SHIFT) |
523 | 05330448 | aliguori | | (rhs->s * DESC_S_MASK) |
524 | 05330448 | aliguori | | (rhs->l << DESC_L_SHIFT) |
525 | 05330448 | aliguori | | (rhs->g * DESC_G_MASK) |
526 | 05330448 | aliguori | | (rhs->avl * DESC_AVL_MASK); |
527 | 05330448 | aliguori | } |
528 | 05330448 | aliguori | |
529 | 05330448 | aliguori | static void kvm_getput_reg(__u64 *kvm_reg, target_ulong *qemu_reg, int set) |
530 | 05330448 | aliguori | { |
531 | 05330448 | aliguori | if (set)
|
532 | 05330448 | aliguori | *kvm_reg = *qemu_reg; |
533 | 05330448 | aliguori | else
|
534 | 05330448 | aliguori | *qemu_reg = *kvm_reg; |
535 | 05330448 | aliguori | } |
536 | 05330448 | aliguori | |
537 | 05330448 | aliguori | static int kvm_getput_regs(CPUState *env, int set) |
538 | 05330448 | aliguori | { |
539 | 05330448 | aliguori | struct kvm_regs regs;
|
540 | 05330448 | aliguori | int ret = 0; |
541 | 05330448 | aliguori | |
542 | 05330448 | aliguori | if (!set) {
|
543 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_REGS, ®s); |
544 | 05330448 | aliguori | if (ret < 0) |
545 | 05330448 | aliguori | return ret;
|
546 | 05330448 | aliguori | } |
547 | 05330448 | aliguori | |
548 | 05330448 | aliguori | kvm_getput_reg(®s.rax, &env->regs[R_EAX], set); |
549 | 05330448 | aliguori | kvm_getput_reg(®s.rbx, &env->regs[R_EBX], set); |
550 | 05330448 | aliguori | kvm_getput_reg(®s.rcx, &env->regs[R_ECX], set); |
551 | 05330448 | aliguori | kvm_getput_reg(®s.rdx, &env->regs[R_EDX], set); |
552 | 05330448 | aliguori | kvm_getput_reg(®s.rsi, &env->regs[R_ESI], set); |
553 | 05330448 | aliguori | kvm_getput_reg(®s.rdi, &env->regs[R_EDI], set); |
554 | 05330448 | aliguori | kvm_getput_reg(®s.rsp, &env->regs[R_ESP], set); |
555 | 05330448 | aliguori | kvm_getput_reg(®s.rbp, &env->regs[R_EBP], set); |
556 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
557 | 05330448 | aliguori | kvm_getput_reg(®s.r8, &env->regs[8], set);
|
558 | 05330448 | aliguori | kvm_getput_reg(®s.r9, &env->regs[9], set);
|
559 | 05330448 | aliguori | kvm_getput_reg(®s.r10, &env->regs[10], set);
|
560 | 05330448 | aliguori | kvm_getput_reg(®s.r11, &env->regs[11], set);
|
561 | 05330448 | aliguori | kvm_getput_reg(®s.r12, &env->regs[12], set);
|
562 | 05330448 | aliguori | kvm_getput_reg(®s.r13, &env->regs[13], set);
|
563 | 05330448 | aliguori | kvm_getput_reg(®s.r14, &env->regs[14], set);
|
564 | 05330448 | aliguori | kvm_getput_reg(®s.r15, &env->regs[15], set);
|
565 | 05330448 | aliguori | #endif
|
566 | 05330448 | aliguori | |
567 | 05330448 | aliguori | kvm_getput_reg(®s.rflags, &env->eflags, set); |
568 | 05330448 | aliguori | kvm_getput_reg(®s.rip, &env->eip, set); |
569 | 05330448 | aliguori | |
570 | 05330448 | aliguori | if (set)
|
571 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_SET_REGS, ®s); |
572 | 05330448 | aliguori | |
573 | 05330448 | aliguori | return ret;
|
574 | 05330448 | aliguori | } |
575 | 05330448 | aliguori | |
576 | 05330448 | aliguori | static int kvm_put_fpu(CPUState *env) |
577 | 05330448 | aliguori | { |
578 | 05330448 | aliguori | struct kvm_fpu fpu;
|
579 | 05330448 | aliguori | int i;
|
580 | 05330448 | aliguori | |
581 | 05330448 | aliguori | memset(&fpu, 0, sizeof fpu); |
582 | 05330448 | aliguori | fpu.fsw = env->fpus & ~(7 << 11); |
583 | 05330448 | aliguori | fpu.fsw |= (env->fpstt & 7) << 11; |
584 | 05330448 | aliguori | fpu.fcw = env->fpuc; |
585 | 05330448 | aliguori | for (i = 0; i < 8; ++i) |
586 | 05330448 | aliguori | fpu.ftwx |= (!env->fptags[i]) << i; |
587 | 05330448 | aliguori | memcpy(fpu.fpr, env->fpregs, sizeof env->fpregs);
|
588 | 05330448 | aliguori | memcpy(fpu.xmm, env->xmm_regs, sizeof env->xmm_regs);
|
589 | 05330448 | aliguori | fpu.mxcsr = env->mxcsr; |
590 | 05330448 | aliguori | |
591 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_FPU, &fpu);
|
592 | 05330448 | aliguori | } |
593 | 05330448 | aliguori | |
594 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XSAVE
|
595 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RIP 2 |
596 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RDP 4 |
597 | f1665b21 | Sheng Yang | #define XSAVE_MXCSR 6 |
598 | f1665b21 | Sheng Yang | #define XSAVE_ST_SPACE 8 |
599 | f1665b21 | Sheng Yang | #define XSAVE_XMM_SPACE 40 |
600 | f1665b21 | Sheng Yang | #define XSAVE_XSTATE_BV 128 |
601 | f1665b21 | Sheng Yang | #define XSAVE_YMMH_SPACE 144 |
602 | f1665b21 | Sheng Yang | #endif
|
603 | f1665b21 | Sheng Yang | |
604 | f1665b21 | Sheng Yang | static int kvm_put_xsave(CPUState *env) |
605 | f1665b21 | Sheng Yang | { |
606 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XSAVE
|
607 | f1665b21 | Sheng Yang | int i;
|
608 | f1665b21 | Sheng Yang | struct kvm_xsave* xsave;
|
609 | f1665b21 | Sheng Yang | uint16_t cwd, swd, twd, fop; |
610 | f1665b21 | Sheng Yang | |
611 | f1665b21 | Sheng Yang | if (!kvm_has_xsave())
|
612 | f1665b21 | Sheng Yang | return kvm_put_fpu(env);
|
613 | f1665b21 | Sheng Yang | |
614 | f1665b21 | Sheng Yang | xsave = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
615 | f1665b21 | Sheng Yang | memset(xsave, 0, sizeof(struct kvm_xsave)); |
616 | f1665b21 | Sheng Yang | cwd = swd = twd = fop = 0;
|
617 | f1665b21 | Sheng Yang | swd = env->fpus & ~(7 << 11); |
618 | f1665b21 | Sheng Yang | swd |= (env->fpstt & 7) << 11; |
619 | f1665b21 | Sheng Yang | cwd = env->fpuc; |
620 | f1665b21 | Sheng Yang | for (i = 0; i < 8; ++i) |
621 | f1665b21 | Sheng Yang | twd |= (!env->fptags[i]) << i; |
622 | f1665b21 | Sheng Yang | xsave->region[0] = (uint32_t)(swd << 16) + cwd; |
623 | f1665b21 | Sheng Yang | xsave->region[1] = (uint32_t)(fop << 16) + twd; |
624 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs, |
625 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
626 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_XMM_SPACE], env->xmm_regs, |
627 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
628 | f1665b21 | Sheng Yang | xsave->region[XSAVE_MXCSR] = env->mxcsr; |
629 | f1665b21 | Sheng Yang | *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV] = env->xstate_bv; |
630 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_YMMH_SPACE], env->ymmh_regs, |
631 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
632 | f1665b21 | Sheng Yang | return kvm_vcpu_ioctl(env, KVM_SET_XSAVE, xsave);
|
633 | f1665b21 | Sheng Yang | #else
|
634 | f1665b21 | Sheng Yang | return kvm_put_fpu(env);
|
635 | f1665b21 | Sheng Yang | #endif
|
636 | f1665b21 | Sheng Yang | } |
637 | f1665b21 | Sheng Yang | |
638 | f1665b21 | Sheng Yang | static int kvm_put_xcrs(CPUState *env) |
639 | f1665b21 | Sheng Yang | { |
640 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XCRS
|
641 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
642 | f1665b21 | Sheng Yang | |
643 | f1665b21 | Sheng Yang | if (!kvm_has_xcrs())
|
644 | f1665b21 | Sheng Yang | return 0; |
645 | f1665b21 | Sheng Yang | |
646 | f1665b21 | Sheng Yang | xcrs.nr_xcrs = 1;
|
647 | f1665b21 | Sheng Yang | xcrs.flags = 0;
|
648 | f1665b21 | Sheng Yang | xcrs.xcrs[0].xcr = 0; |
649 | f1665b21 | Sheng Yang | xcrs.xcrs[0].value = env->xcr0;
|
650 | f1665b21 | Sheng Yang | return kvm_vcpu_ioctl(env, KVM_SET_XCRS, &xcrs);
|
651 | f1665b21 | Sheng Yang | #else
|
652 | f1665b21 | Sheng Yang | return 0; |
653 | f1665b21 | Sheng Yang | #endif
|
654 | f1665b21 | Sheng Yang | } |
655 | f1665b21 | Sheng Yang | |
656 | 05330448 | aliguori | static int kvm_put_sregs(CPUState *env) |
657 | 05330448 | aliguori | { |
658 | 05330448 | aliguori | struct kvm_sregs sregs;
|
659 | 05330448 | aliguori | |
660 | 0e607a80 | Jan Kiszka | memset(sregs.interrupt_bitmap, 0, sizeof(sregs.interrupt_bitmap)); |
661 | 0e607a80 | Jan Kiszka | if (env->interrupt_injected >= 0) { |
662 | 0e607a80 | Jan Kiszka | sregs.interrupt_bitmap[env->interrupt_injected / 64] |=
|
663 | 0e607a80 | Jan Kiszka | (uint64_t)1 << (env->interrupt_injected % 64); |
664 | 0e607a80 | Jan Kiszka | } |
665 | 05330448 | aliguori | |
666 | 05330448 | aliguori | if ((env->eflags & VM_MASK)) {
|
667 | 05330448 | aliguori | set_v8086_seg(&sregs.cs, &env->segs[R_CS]); |
668 | 05330448 | aliguori | set_v8086_seg(&sregs.ds, &env->segs[R_DS]); |
669 | 05330448 | aliguori | set_v8086_seg(&sregs.es, &env->segs[R_ES]); |
670 | 05330448 | aliguori | set_v8086_seg(&sregs.fs, &env->segs[R_FS]); |
671 | 05330448 | aliguori | set_v8086_seg(&sregs.gs, &env->segs[R_GS]); |
672 | 05330448 | aliguori | set_v8086_seg(&sregs.ss, &env->segs[R_SS]); |
673 | 05330448 | aliguori | } else {
|
674 | 05330448 | aliguori | set_seg(&sregs.cs, &env->segs[R_CS]); |
675 | 05330448 | aliguori | set_seg(&sregs.ds, &env->segs[R_DS]); |
676 | 05330448 | aliguori | set_seg(&sregs.es, &env->segs[R_ES]); |
677 | 05330448 | aliguori | set_seg(&sregs.fs, &env->segs[R_FS]); |
678 | 05330448 | aliguori | set_seg(&sregs.gs, &env->segs[R_GS]); |
679 | 05330448 | aliguori | set_seg(&sregs.ss, &env->segs[R_SS]); |
680 | 05330448 | aliguori | |
681 | 05330448 | aliguori | if (env->cr[0] & CR0_PE_MASK) { |
682 | 05330448 | aliguori | /* force ss cpl to cs cpl */
|
683 | 05330448 | aliguori | sregs.ss.selector = (sregs.ss.selector & ~3) |
|
684 | 05330448 | aliguori | (sregs.cs.selector & 3);
|
685 | 05330448 | aliguori | sregs.ss.dpl = sregs.ss.selector & 3;
|
686 | 05330448 | aliguori | } |
687 | 05330448 | aliguori | } |
688 | 05330448 | aliguori | |
689 | 05330448 | aliguori | set_seg(&sregs.tr, &env->tr); |
690 | 05330448 | aliguori | set_seg(&sregs.ldt, &env->ldt); |
691 | 05330448 | aliguori | |
692 | 05330448 | aliguori | sregs.idt.limit = env->idt.limit; |
693 | 05330448 | aliguori | sregs.idt.base = env->idt.base; |
694 | 05330448 | aliguori | sregs.gdt.limit = env->gdt.limit; |
695 | 05330448 | aliguori | sregs.gdt.base = env->gdt.base; |
696 | 05330448 | aliguori | |
697 | 05330448 | aliguori | sregs.cr0 = env->cr[0];
|
698 | 05330448 | aliguori | sregs.cr2 = env->cr[2];
|
699 | 05330448 | aliguori | sregs.cr3 = env->cr[3];
|
700 | 05330448 | aliguori | sregs.cr4 = env->cr[4];
|
701 | 05330448 | aliguori | |
702 | 4a942cea | Blue Swirl | sregs.cr8 = cpu_get_apic_tpr(env->apic_state); |
703 | 4a942cea | Blue Swirl | sregs.apic_base = cpu_get_apic_base(env->apic_state); |
704 | 05330448 | aliguori | |
705 | 05330448 | aliguori | sregs.efer = env->efer; |
706 | 05330448 | aliguori | |
707 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_SREGS, &sregs);
|
708 | 05330448 | aliguori | } |
709 | 05330448 | aliguori | |
710 | 05330448 | aliguori | static void kvm_msr_entry_set(struct kvm_msr_entry *entry, |
711 | 05330448 | aliguori | uint32_t index, uint64_t value) |
712 | 05330448 | aliguori | { |
713 | 05330448 | aliguori | entry->index = index; |
714 | 05330448 | aliguori | entry->data = value; |
715 | 05330448 | aliguori | } |
716 | 05330448 | aliguori | |
717 | ea643051 | Jan Kiszka | static int kvm_put_msrs(CPUState *env, int level) |
718 | 05330448 | aliguori | { |
719 | 05330448 | aliguori | struct {
|
720 | 05330448 | aliguori | struct kvm_msrs info;
|
721 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
722 | 05330448 | aliguori | } msr_data; |
723 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
724 | 05330448 | aliguori | int n = 0; |
725 | 05330448 | aliguori | |
726 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_CS, env->sysenter_cs); |
727 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_ESP, env->sysenter_esp); |
728 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_EIP, env->sysenter_eip); |
729 | 05330448 | aliguori | if (kvm_has_msr_star(env))
|
730 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_STAR, env->star); |
731 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
732 | 05330448 | aliguori | /* FIXME if lm capable */
|
733 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_CSTAR, env->cstar); |
734 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_KERNELGSBASE, env->kernelgsbase); |
735 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_FMASK, env->fmask); |
736 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_LSTAR, env->lstar); |
737 | 05330448 | aliguori | #endif
|
738 | ea643051 | Jan Kiszka | if (level == KVM_PUT_FULL_STATE) {
|
739 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_IA32_TSC, env->tsc); |
740 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_SYSTEM_TIME, |
741 | ea643051 | Jan Kiszka | env->system_time_msr); |
742 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_WALL_CLOCK, env->wall_clock_msr); |
743 | ea643051 | Jan Kiszka | } |
744 | 1a03675d | Glauber Costa | |
745 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
746 | 05330448 | aliguori | |
747 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_MSRS, &msr_data);
|
748 | 05330448 | aliguori | |
749 | 05330448 | aliguori | } |
750 | 05330448 | aliguori | |
751 | 05330448 | aliguori | |
752 | 05330448 | aliguori | static int kvm_get_fpu(CPUState *env) |
753 | 05330448 | aliguori | { |
754 | 05330448 | aliguori | struct kvm_fpu fpu;
|
755 | 05330448 | aliguori | int i, ret;
|
756 | 05330448 | aliguori | |
757 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_FPU, &fpu); |
758 | 05330448 | aliguori | if (ret < 0) |
759 | 05330448 | aliguori | return ret;
|
760 | 05330448 | aliguori | |
761 | 05330448 | aliguori | env->fpstt = (fpu.fsw >> 11) & 7; |
762 | 05330448 | aliguori | env->fpus = fpu.fsw; |
763 | 05330448 | aliguori | env->fpuc = fpu.fcw; |
764 | 05330448 | aliguori | for (i = 0; i < 8; ++i) |
765 | 05330448 | aliguori | env->fptags[i] = !((fpu.ftwx >> i) & 1);
|
766 | 05330448 | aliguori | memcpy(env->fpregs, fpu.fpr, sizeof env->fpregs);
|
767 | 05330448 | aliguori | memcpy(env->xmm_regs, fpu.xmm, sizeof env->xmm_regs);
|
768 | 05330448 | aliguori | env->mxcsr = fpu.mxcsr; |
769 | 05330448 | aliguori | |
770 | 05330448 | aliguori | return 0; |
771 | 05330448 | aliguori | } |
772 | 05330448 | aliguori | |
773 | f1665b21 | Sheng Yang | static int kvm_get_xsave(CPUState *env) |
774 | f1665b21 | Sheng Yang | { |
775 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XSAVE
|
776 | f1665b21 | Sheng Yang | struct kvm_xsave* xsave;
|
777 | f1665b21 | Sheng Yang | int ret, i;
|
778 | f1665b21 | Sheng Yang | uint16_t cwd, swd, twd, fop; |
779 | f1665b21 | Sheng Yang | |
780 | f1665b21 | Sheng Yang | if (!kvm_has_xsave())
|
781 | f1665b21 | Sheng Yang | return kvm_get_fpu(env);
|
782 | f1665b21 | Sheng Yang | |
783 | f1665b21 | Sheng Yang | xsave = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
784 | f1665b21 | Sheng Yang | ret = kvm_vcpu_ioctl(env, KVM_GET_XSAVE, xsave); |
785 | f1665b21 | Sheng Yang | if (ret < 0) |
786 | f1665b21 | Sheng Yang | return ret;
|
787 | f1665b21 | Sheng Yang | |
788 | f1665b21 | Sheng Yang | cwd = (uint16_t)xsave->region[0];
|
789 | f1665b21 | Sheng Yang | swd = (uint16_t)(xsave->region[0] >> 16); |
790 | f1665b21 | Sheng Yang | twd = (uint16_t)xsave->region[1];
|
791 | f1665b21 | Sheng Yang | fop = (uint16_t)(xsave->region[1] >> 16); |
792 | f1665b21 | Sheng Yang | env->fpstt = (swd >> 11) & 7; |
793 | f1665b21 | Sheng Yang | env->fpus = swd; |
794 | f1665b21 | Sheng Yang | env->fpuc = cwd; |
795 | f1665b21 | Sheng Yang | for (i = 0; i < 8; ++i) |
796 | f1665b21 | Sheng Yang | env->fptags[i] = !((twd >> i) & 1);
|
797 | f1665b21 | Sheng Yang | env->mxcsr = xsave->region[XSAVE_MXCSR]; |
798 | f1665b21 | Sheng Yang | memcpy(env->fpregs, &xsave->region[XSAVE_ST_SPACE], |
799 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
800 | f1665b21 | Sheng Yang | memcpy(env->xmm_regs, &xsave->region[XSAVE_XMM_SPACE], |
801 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
802 | f1665b21 | Sheng Yang | env->xstate_bv = *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV]; |
803 | f1665b21 | Sheng Yang | memcpy(env->ymmh_regs, &xsave->region[XSAVE_YMMH_SPACE], |
804 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
805 | f1665b21 | Sheng Yang | return 0; |
806 | f1665b21 | Sheng Yang | #else
|
807 | f1665b21 | Sheng Yang | return kvm_get_fpu(env);
|
808 | f1665b21 | Sheng Yang | #endif
|
809 | f1665b21 | Sheng Yang | } |
810 | f1665b21 | Sheng Yang | |
811 | f1665b21 | Sheng Yang | static int kvm_get_xcrs(CPUState *env) |
812 | f1665b21 | Sheng Yang | { |
813 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XCRS
|
814 | f1665b21 | Sheng Yang | int i, ret;
|
815 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
816 | f1665b21 | Sheng Yang | |
817 | f1665b21 | Sheng Yang | if (!kvm_has_xcrs())
|
818 | f1665b21 | Sheng Yang | return 0; |
819 | f1665b21 | Sheng Yang | |
820 | f1665b21 | Sheng Yang | ret = kvm_vcpu_ioctl(env, KVM_GET_XCRS, &xcrs); |
821 | f1665b21 | Sheng Yang | if (ret < 0) |
822 | f1665b21 | Sheng Yang | return ret;
|
823 | f1665b21 | Sheng Yang | |
824 | f1665b21 | Sheng Yang | for (i = 0; i < xcrs.nr_xcrs; i++) |
825 | f1665b21 | Sheng Yang | /* Only support xcr0 now */
|
826 | f1665b21 | Sheng Yang | if (xcrs.xcrs[0].xcr == 0) { |
827 | f1665b21 | Sheng Yang | env->xcr0 = xcrs.xcrs[0].value;
|
828 | f1665b21 | Sheng Yang | break;
|
829 | f1665b21 | Sheng Yang | } |
830 | f1665b21 | Sheng Yang | return 0; |
831 | f1665b21 | Sheng Yang | #else
|
832 | f1665b21 | Sheng Yang | return 0; |
833 | f1665b21 | Sheng Yang | #endif
|
834 | f1665b21 | Sheng Yang | } |
835 | f1665b21 | Sheng Yang | |
836 | 05330448 | aliguori | static int kvm_get_sregs(CPUState *env) |
837 | 05330448 | aliguori | { |
838 | 05330448 | aliguori | struct kvm_sregs sregs;
|
839 | 05330448 | aliguori | uint32_t hflags; |
840 | 0e607a80 | Jan Kiszka | int bit, i, ret;
|
841 | 05330448 | aliguori | |
842 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_SREGS, &sregs); |
843 | 05330448 | aliguori | if (ret < 0) |
844 | 05330448 | aliguori | return ret;
|
845 | 05330448 | aliguori | |
846 | 0e607a80 | Jan Kiszka | /* There can only be one pending IRQ set in the bitmap at a time, so try
|
847 | 0e607a80 | Jan Kiszka | to find it and save its number instead (-1 for none). */
|
848 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
849 | 0e607a80 | Jan Kiszka | for (i = 0; i < ARRAY_SIZE(sregs.interrupt_bitmap); i++) { |
850 | 0e607a80 | Jan Kiszka | if (sregs.interrupt_bitmap[i]) {
|
851 | 0e607a80 | Jan Kiszka | bit = ctz64(sregs.interrupt_bitmap[i]); |
852 | 0e607a80 | Jan Kiszka | env->interrupt_injected = i * 64 + bit;
|
853 | 0e607a80 | Jan Kiszka | break;
|
854 | 0e607a80 | Jan Kiszka | } |
855 | 0e607a80 | Jan Kiszka | } |
856 | 05330448 | aliguori | |
857 | 05330448 | aliguori | get_seg(&env->segs[R_CS], &sregs.cs); |
858 | 05330448 | aliguori | get_seg(&env->segs[R_DS], &sregs.ds); |
859 | 05330448 | aliguori | get_seg(&env->segs[R_ES], &sregs.es); |
860 | 05330448 | aliguori | get_seg(&env->segs[R_FS], &sregs.fs); |
861 | 05330448 | aliguori | get_seg(&env->segs[R_GS], &sregs.gs); |
862 | 05330448 | aliguori | get_seg(&env->segs[R_SS], &sregs.ss); |
863 | 05330448 | aliguori | |
864 | 05330448 | aliguori | get_seg(&env->tr, &sregs.tr); |
865 | 05330448 | aliguori | get_seg(&env->ldt, &sregs.ldt); |
866 | 05330448 | aliguori | |
867 | 05330448 | aliguori | env->idt.limit = sregs.idt.limit; |
868 | 05330448 | aliguori | env->idt.base = sregs.idt.base; |
869 | 05330448 | aliguori | env->gdt.limit = sregs.gdt.limit; |
870 | 05330448 | aliguori | env->gdt.base = sregs.gdt.base; |
871 | 05330448 | aliguori | |
872 | 05330448 | aliguori | env->cr[0] = sregs.cr0;
|
873 | 05330448 | aliguori | env->cr[2] = sregs.cr2;
|
874 | 05330448 | aliguori | env->cr[3] = sregs.cr3;
|
875 | 05330448 | aliguori | env->cr[4] = sregs.cr4;
|
876 | 05330448 | aliguori | |
877 | 4a942cea | Blue Swirl | cpu_set_apic_base(env->apic_state, sregs.apic_base); |
878 | 05330448 | aliguori | |
879 | 05330448 | aliguori | env->efer = sregs.efer; |
880 | 4a942cea | Blue Swirl | //cpu_set_apic_tpr(env->apic_state, sregs.cr8);
|
881 | 05330448 | aliguori | |
882 | 05330448 | aliguori | #define HFLAG_COPY_MASK ~( \
|
883 | 05330448 | aliguori | HF_CPL_MASK | HF_PE_MASK | HF_MP_MASK | HF_EM_MASK | \ |
884 | 05330448 | aliguori | HF_TS_MASK | HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK | \ |
885 | 05330448 | aliguori | HF_OSFXSR_MASK | HF_LMA_MASK | HF_CS32_MASK | \ |
886 | 05330448 | aliguori | HF_SS32_MASK | HF_CS64_MASK | HF_ADDSEG_MASK) |
887 | 05330448 | aliguori | |
888 | 05330448 | aliguori | |
889 | 05330448 | aliguori | |
890 | 05330448 | aliguori | hflags = (env->segs[R_CS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK; |
891 | 05330448 | aliguori | hflags |= (env->cr[0] & CR0_PE_MASK) << (HF_PE_SHIFT - CR0_PE_SHIFT);
|
892 | 05330448 | aliguori | hflags |= (env->cr[0] << (HF_MP_SHIFT - CR0_MP_SHIFT)) &
|
893 | 05330448 | aliguori | (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK); |
894 | 05330448 | aliguori | hflags |= (env->eflags & (HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK)); |
895 | 05330448 | aliguori | hflags |= (env->cr[4] & CR4_OSFXSR_MASK) <<
|
896 | 05330448 | aliguori | (HF_OSFXSR_SHIFT - CR4_OSFXSR_SHIFT); |
897 | 05330448 | aliguori | |
898 | 05330448 | aliguori | if (env->efer & MSR_EFER_LMA) {
|
899 | 05330448 | aliguori | hflags |= HF_LMA_MASK; |
900 | 05330448 | aliguori | } |
901 | 05330448 | aliguori | |
902 | 05330448 | aliguori | if ((hflags & HF_LMA_MASK) && (env->segs[R_CS].flags & DESC_L_MASK)) {
|
903 | 05330448 | aliguori | hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK; |
904 | 05330448 | aliguori | } else {
|
905 | 05330448 | aliguori | hflags |= (env->segs[R_CS].flags & DESC_B_MASK) >> |
906 | 05330448 | aliguori | (DESC_B_SHIFT - HF_CS32_SHIFT); |
907 | 05330448 | aliguori | hflags |= (env->segs[R_SS].flags & DESC_B_MASK) >> |
908 | 05330448 | aliguori | (DESC_B_SHIFT - HF_SS32_SHIFT); |
909 | 05330448 | aliguori | if (!(env->cr[0] & CR0_PE_MASK) || |
910 | 05330448 | aliguori | (env->eflags & VM_MASK) || |
911 | 05330448 | aliguori | !(hflags & HF_CS32_MASK)) { |
912 | 05330448 | aliguori | hflags |= HF_ADDSEG_MASK; |
913 | 05330448 | aliguori | } else {
|
914 | 05330448 | aliguori | hflags |= ((env->segs[R_DS].base | |
915 | 05330448 | aliguori | env->segs[R_ES].base | |
916 | 05330448 | aliguori | env->segs[R_SS].base) != 0) <<
|
917 | 05330448 | aliguori | HF_ADDSEG_SHIFT; |
918 | 05330448 | aliguori | } |
919 | 05330448 | aliguori | } |
920 | 05330448 | aliguori | env->hflags = (env->hflags & HFLAG_COPY_MASK) | hflags; |
921 | 05330448 | aliguori | |
922 | 05330448 | aliguori | return 0; |
923 | 05330448 | aliguori | } |
924 | 05330448 | aliguori | |
925 | 05330448 | aliguori | static int kvm_get_msrs(CPUState *env) |
926 | 05330448 | aliguori | { |
927 | 05330448 | aliguori | struct {
|
928 | 05330448 | aliguori | struct kvm_msrs info;
|
929 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
930 | 05330448 | aliguori | } msr_data; |
931 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
932 | 05330448 | aliguori | int ret, i, n;
|
933 | 05330448 | aliguori | |
934 | 05330448 | aliguori | n = 0;
|
935 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_CS; |
936 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_ESP; |
937 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_EIP; |
938 | 05330448 | aliguori | if (kvm_has_msr_star(env))
|
939 | 05330448 | aliguori | msrs[n++].index = MSR_STAR; |
940 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_TSC; |
941 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
942 | 05330448 | aliguori | /* FIXME lm_capable_kernel */
|
943 | 05330448 | aliguori | msrs[n++].index = MSR_CSTAR; |
944 | 05330448 | aliguori | msrs[n++].index = MSR_KERNELGSBASE; |
945 | 05330448 | aliguori | msrs[n++].index = MSR_FMASK; |
946 | 05330448 | aliguori | msrs[n++].index = MSR_LSTAR; |
947 | 05330448 | aliguori | #endif
|
948 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_SYSTEM_TIME; |
949 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_WALL_CLOCK; |
950 | 1a03675d | Glauber Costa | |
951 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
952 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_MSRS, &msr_data); |
953 | 05330448 | aliguori | if (ret < 0) |
954 | 05330448 | aliguori | return ret;
|
955 | 05330448 | aliguori | |
956 | 05330448 | aliguori | for (i = 0; i < ret; i++) { |
957 | 05330448 | aliguori | switch (msrs[i].index) {
|
958 | 05330448 | aliguori | case MSR_IA32_SYSENTER_CS:
|
959 | 05330448 | aliguori | env->sysenter_cs = msrs[i].data; |
960 | 05330448 | aliguori | break;
|
961 | 05330448 | aliguori | case MSR_IA32_SYSENTER_ESP:
|
962 | 05330448 | aliguori | env->sysenter_esp = msrs[i].data; |
963 | 05330448 | aliguori | break;
|
964 | 05330448 | aliguori | case MSR_IA32_SYSENTER_EIP:
|
965 | 05330448 | aliguori | env->sysenter_eip = msrs[i].data; |
966 | 05330448 | aliguori | break;
|
967 | 05330448 | aliguori | case MSR_STAR:
|
968 | 05330448 | aliguori | env->star = msrs[i].data; |
969 | 05330448 | aliguori | break;
|
970 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
971 | 05330448 | aliguori | case MSR_CSTAR:
|
972 | 05330448 | aliguori | env->cstar = msrs[i].data; |
973 | 05330448 | aliguori | break;
|
974 | 05330448 | aliguori | case MSR_KERNELGSBASE:
|
975 | 05330448 | aliguori | env->kernelgsbase = msrs[i].data; |
976 | 05330448 | aliguori | break;
|
977 | 05330448 | aliguori | case MSR_FMASK:
|
978 | 05330448 | aliguori | env->fmask = msrs[i].data; |
979 | 05330448 | aliguori | break;
|
980 | 05330448 | aliguori | case MSR_LSTAR:
|
981 | 05330448 | aliguori | env->lstar = msrs[i].data; |
982 | 05330448 | aliguori | break;
|
983 | 05330448 | aliguori | #endif
|
984 | 05330448 | aliguori | case MSR_IA32_TSC:
|
985 | 05330448 | aliguori | env->tsc = msrs[i].data; |
986 | 05330448 | aliguori | break;
|
987 | 1a03675d | Glauber Costa | case MSR_KVM_SYSTEM_TIME:
|
988 | 1a03675d | Glauber Costa | env->system_time_msr = msrs[i].data; |
989 | 1a03675d | Glauber Costa | break;
|
990 | 1a03675d | Glauber Costa | case MSR_KVM_WALL_CLOCK:
|
991 | 1a03675d | Glauber Costa | env->wall_clock_msr = msrs[i].data; |
992 | 1a03675d | Glauber Costa | break;
|
993 | 05330448 | aliguori | } |
994 | 05330448 | aliguori | } |
995 | 05330448 | aliguori | |
996 | 05330448 | aliguori | return 0; |
997 | 05330448 | aliguori | } |
998 | 05330448 | aliguori | |
999 | 9bdbe550 | Hollis Blanchard | static int kvm_put_mp_state(CPUState *env) |
1000 | 9bdbe550 | Hollis Blanchard | { |
1001 | 9bdbe550 | Hollis Blanchard | struct kvm_mp_state mp_state = { .mp_state = env->mp_state };
|
1002 | 9bdbe550 | Hollis Blanchard | |
1003 | 9bdbe550 | Hollis Blanchard | return kvm_vcpu_ioctl(env, KVM_SET_MP_STATE, &mp_state);
|
1004 | 9bdbe550 | Hollis Blanchard | } |
1005 | 9bdbe550 | Hollis Blanchard | |
1006 | 9bdbe550 | Hollis Blanchard | static int kvm_get_mp_state(CPUState *env) |
1007 | 9bdbe550 | Hollis Blanchard | { |
1008 | 9bdbe550 | Hollis Blanchard | struct kvm_mp_state mp_state;
|
1009 | 9bdbe550 | Hollis Blanchard | int ret;
|
1010 | 9bdbe550 | Hollis Blanchard | |
1011 | 9bdbe550 | Hollis Blanchard | ret = kvm_vcpu_ioctl(env, KVM_GET_MP_STATE, &mp_state); |
1012 | 9bdbe550 | Hollis Blanchard | if (ret < 0) { |
1013 | 9bdbe550 | Hollis Blanchard | return ret;
|
1014 | 9bdbe550 | Hollis Blanchard | } |
1015 | 9bdbe550 | Hollis Blanchard | env->mp_state = mp_state.mp_state; |
1016 | 9bdbe550 | Hollis Blanchard | return 0; |
1017 | 9bdbe550 | Hollis Blanchard | } |
1018 | 9bdbe550 | Hollis Blanchard | |
1019 | ea643051 | Jan Kiszka | static int kvm_put_vcpu_events(CPUState *env, int level) |
1020 | a0fb002c | Jan Kiszka | { |
1021 | a0fb002c | Jan Kiszka | #ifdef KVM_CAP_VCPU_EVENTS
|
1022 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1023 | a0fb002c | Jan Kiszka | |
1024 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1025 | a0fb002c | Jan Kiszka | return 0; |
1026 | a0fb002c | Jan Kiszka | } |
1027 | a0fb002c | Jan Kiszka | |
1028 | 31827373 | Jan Kiszka | events.exception.injected = (env->exception_injected >= 0);
|
1029 | 31827373 | Jan Kiszka | events.exception.nr = env->exception_injected; |
1030 | a0fb002c | Jan Kiszka | events.exception.has_error_code = env->has_error_code; |
1031 | a0fb002c | Jan Kiszka | events.exception.error_code = env->error_code; |
1032 | a0fb002c | Jan Kiszka | |
1033 | a0fb002c | Jan Kiszka | events.interrupt.injected = (env->interrupt_injected >= 0);
|
1034 | a0fb002c | Jan Kiszka | events.interrupt.nr = env->interrupt_injected; |
1035 | a0fb002c | Jan Kiszka | events.interrupt.soft = env->soft_interrupt; |
1036 | a0fb002c | Jan Kiszka | |
1037 | a0fb002c | Jan Kiszka | events.nmi.injected = env->nmi_injected; |
1038 | a0fb002c | Jan Kiszka | events.nmi.pending = env->nmi_pending; |
1039 | a0fb002c | Jan Kiszka | events.nmi.masked = !!(env->hflags2 & HF2_NMI_MASK); |
1040 | a0fb002c | Jan Kiszka | |
1041 | a0fb002c | Jan Kiszka | events.sipi_vector = env->sipi_vector; |
1042 | a0fb002c | Jan Kiszka | |
1043 | ea643051 | Jan Kiszka | events.flags = 0;
|
1044 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1045 | ea643051 | Jan Kiszka | events.flags |= |
1046 | ea643051 | Jan Kiszka | KVM_VCPUEVENT_VALID_NMI_PENDING | KVM_VCPUEVENT_VALID_SIPI_VECTOR; |
1047 | ea643051 | Jan Kiszka | } |
1048 | aee028b9 | Jan Kiszka | |
1049 | a0fb002c | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_SET_VCPU_EVENTS, &events);
|
1050 | a0fb002c | Jan Kiszka | #else
|
1051 | a0fb002c | Jan Kiszka | return 0; |
1052 | a0fb002c | Jan Kiszka | #endif
|
1053 | a0fb002c | Jan Kiszka | } |
1054 | a0fb002c | Jan Kiszka | |
1055 | a0fb002c | Jan Kiszka | static int kvm_get_vcpu_events(CPUState *env) |
1056 | a0fb002c | Jan Kiszka | { |
1057 | a0fb002c | Jan Kiszka | #ifdef KVM_CAP_VCPU_EVENTS
|
1058 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1059 | a0fb002c | Jan Kiszka | int ret;
|
1060 | a0fb002c | Jan Kiszka | |
1061 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1062 | a0fb002c | Jan Kiszka | return 0; |
1063 | a0fb002c | Jan Kiszka | } |
1064 | a0fb002c | Jan Kiszka | |
1065 | a0fb002c | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_GET_VCPU_EVENTS, &events); |
1066 | a0fb002c | Jan Kiszka | if (ret < 0) { |
1067 | a0fb002c | Jan Kiszka | return ret;
|
1068 | a0fb002c | Jan Kiszka | } |
1069 | 31827373 | Jan Kiszka | env->exception_injected = |
1070 | a0fb002c | Jan Kiszka | events.exception.injected ? events.exception.nr : -1;
|
1071 | a0fb002c | Jan Kiszka | env->has_error_code = events.exception.has_error_code; |
1072 | a0fb002c | Jan Kiszka | env->error_code = events.exception.error_code; |
1073 | a0fb002c | Jan Kiszka | |
1074 | a0fb002c | Jan Kiszka | env->interrupt_injected = |
1075 | a0fb002c | Jan Kiszka | events.interrupt.injected ? events.interrupt.nr : -1;
|
1076 | a0fb002c | Jan Kiszka | env->soft_interrupt = events.interrupt.soft; |
1077 | a0fb002c | Jan Kiszka | |
1078 | a0fb002c | Jan Kiszka | env->nmi_injected = events.nmi.injected; |
1079 | a0fb002c | Jan Kiszka | env->nmi_pending = events.nmi.pending; |
1080 | a0fb002c | Jan Kiszka | if (events.nmi.masked) {
|
1081 | a0fb002c | Jan Kiszka | env->hflags2 |= HF2_NMI_MASK; |
1082 | a0fb002c | Jan Kiszka | } else {
|
1083 | a0fb002c | Jan Kiszka | env->hflags2 &= ~HF2_NMI_MASK; |
1084 | a0fb002c | Jan Kiszka | } |
1085 | a0fb002c | Jan Kiszka | |
1086 | a0fb002c | Jan Kiszka | env->sipi_vector = events.sipi_vector; |
1087 | a0fb002c | Jan Kiszka | #endif
|
1088 | a0fb002c | Jan Kiszka | |
1089 | a0fb002c | Jan Kiszka | return 0; |
1090 | a0fb002c | Jan Kiszka | } |
1091 | a0fb002c | Jan Kiszka | |
1092 | b0b1d690 | Jan Kiszka | static int kvm_guest_debug_workarounds(CPUState *env) |
1093 | b0b1d690 | Jan Kiszka | { |
1094 | b0b1d690 | Jan Kiszka | int ret = 0; |
1095 | b0b1d690 | Jan Kiszka | #ifdef KVM_CAP_SET_GUEST_DEBUG
|
1096 | b0b1d690 | Jan Kiszka | unsigned long reinject_trap = 0; |
1097 | b0b1d690 | Jan Kiszka | |
1098 | b0b1d690 | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1099 | b0b1d690 | Jan Kiszka | if (env->exception_injected == 1) { |
1100 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_DB; |
1101 | b0b1d690 | Jan Kiszka | } else if (env->exception_injected == 3) { |
1102 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_BP; |
1103 | b0b1d690 | Jan Kiszka | } |
1104 | b0b1d690 | Jan Kiszka | env->exception_injected = -1;
|
1105 | b0b1d690 | Jan Kiszka | } |
1106 | b0b1d690 | Jan Kiszka | |
1107 | b0b1d690 | Jan Kiszka | /*
|
1108 | b0b1d690 | Jan Kiszka | * Kernels before KVM_CAP_X86_ROBUST_SINGLESTEP overwrote flags.TF
|
1109 | b0b1d690 | Jan Kiszka | * injected via SET_GUEST_DEBUG while updating GP regs. Work around this
|
1110 | b0b1d690 | Jan Kiszka | * by updating the debug state once again if single-stepping is on.
|
1111 | b0b1d690 | Jan Kiszka | * Another reason to call kvm_update_guest_debug here is a pending debug
|
1112 | b0b1d690 | Jan Kiszka | * trap raise by the guest. On kernels without SET_VCPU_EVENTS we have to
|
1113 | b0b1d690 | Jan Kiszka | * reinject them via SET_GUEST_DEBUG.
|
1114 | b0b1d690 | Jan Kiszka | */
|
1115 | b0b1d690 | Jan Kiszka | if (reinject_trap ||
|
1116 | b0b1d690 | Jan Kiszka | (!kvm_has_robust_singlestep() && env->singlestep_enabled)) { |
1117 | b0b1d690 | Jan Kiszka | ret = kvm_update_guest_debug(env, reinject_trap); |
1118 | b0b1d690 | Jan Kiszka | } |
1119 | b0b1d690 | Jan Kiszka | #endif /* KVM_CAP_SET_GUEST_DEBUG */ |
1120 | b0b1d690 | Jan Kiszka | return ret;
|
1121 | b0b1d690 | Jan Kiszka | } |
1122 | b0b1d690 | Jan Kiszka | |
1123 | ff44f1a3 | Jan Kiszka | static int kvm_put_debugregs(CPUState *env) |
1124 | ff44f1a3 | Jan Kiszka | { |
1125 | ff44f1a3 | Jan Kiszka | #ifdef KVM_CAP_DEBUGREGS
|
1126 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1127 | ff44f1a3 | Jan Kiszka | int i;
|
1128 | ff44f1a3 | Jan Kiszka | |
1129 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1130 | ff44f1a3 | Jan Kiszka | return 0; |
1131 | ff44f1a3 | Jan Kiszka | } |
1132 | ff44f1a3 | Jan Kiszka | |
1133 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1134 | ff44f1a3 | Jan Kiszka | dbgregs.db[i] = env->dr[i]; |
1135 | ff44f1a3 | Jan Kiszka | } |
1136 | ff44f1a3 | Jan Kiszka | dbgregs.dr6 = env->dr[6];
|
1137 | ff44f1a3 | Jan Kiszka | dbgregs.dr7 = env->dr[7];
|
1138 | ff44f1a3 | Jan Kiszka | dbgregs.flags = 0;
|
1139 | ff44f1a3 | Jan Kiszka | |
1140 | ff44f1a3 | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_SET_DEBUGREGS, &dbgregs);
|
1141 | ff44f1a3 | Jan Kiszka | #else
|
1142 | ff44f1a3 | Jan Kiszka | return 0; |
1143 | ff44f1a3 | Jan Kiszka | #endif
|
1144 | ff44f1a3 | Jan Kiszka | } |
1145 | ff44f1a3 | Jan Kiszka | |
1146 | ff44f1a3 | Jan Kiszka | static int kvm_get_debugregs(CPUState *env) |
1147 | ff44f1a3 | Jan Kiszka | { |
1148 | ff44f1a3 | Jan Kiszka | #ifdef KVM_CAP_DEBUGREGS
|
1149 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1150 | ff44f1a3 | Jan Kiszka | int i, ret;
|
1151 | ff44f1a3 | Jan Kiszka | |
1152 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1153 | ff44f1a3 | Jan Kiszka | return 0; |
1154 | ff44f1a3 | Jan Kiszka | } |
1155 | ff44f1a3 | Jan Kiszka | |
1156 | ff44f1a3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_GET_DEBUGREGS, &dbgregs); |
1157 | ff44f1a3 | Jan Kiszka | if (ret < 0) { |
1158 | ff44f1a3 | Jan Kiszka | return ret;
|
1159 | ff44f1a3 | Jan Kiszka | } |
1160 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1161 | ff44f1a3 | Jan Kiszka | env->dr[i] = dbgregs.db[i]; |
1162 | ff44f1a3 | Jan Kiszka | } |
1163 | ff44f1a3 | Jan Kiszka | env->dr[4] = env->dr[6] = dbgregs.dr6; |
1164 | ff44f1a3 | Jan Kiszka | env->dr[5] = env->dr[7] = dbgregs.dr7; |
1165 | ff44f1a3 | Jan Kiszka | #endif
|
1166 | ff44f1a3 | Jan Kiszka | |
1167 | ff44f1a3 | Jan Kiszka | return 0; |
1168 | ff44f1a3 | Jan Kiszka | } |
1169 | ff44f1a3 | Jan Kiszka | |
1170 | ea375f9a | Jan Kiszka | int kvm_arch_put_registers(CPUState *env, int level) |
1171 | 05330448 | aliguori | { |
1172 | 05330448 | aliguori | int ret;
|
1173 | 05330448 | aliguori | |
1174 | dbaa07c4 | Jan Kiszka | assert(cpu_is_stopped(env) || qemu_cpu_self(env)); |
1175 | dbaa07c4 | Jan Kiszka | |
1176 | 05330448 | aliguori | ret = kvm_getput_regs(env, 1);
|
1177 | 05330448 | aliguori | if (ret < 0) |
1178 | 05330448 | aliguori | return ret;
|
1179 | 05330448 | aliguori | |
1180 | f1665b21 | Sheng Yang | ret = kvm_put_xsave(env); |
1181 | f1665b21 | Sheng Yang | if (ret < 0) |
1182 | f1665b21 | Sheng Yang | return ret;
|
1183 | f1665b21 | Sheng Yang | |
1184 | f1665b21 | Sheng Yang | ret = kvm_put_xcrs(env); |
1185 | 05330448 | aliguori | if (ret < 0) |
1186 | 05330448 | aliguori | return ret;
|
1187 | 05330448 | aliguori | |
1188 | 05330448 | aliguori | ret = kvm_put_sregs(env); |
1189 | 05330448 | aliguori | if (ret < 0) |
1190 | 05330448 | aliguori | return ret;
|
1191 | 05330448 | aliguori | |
1192 | ea643051 | Jan Kiszka | ret = kvm_put_msrs(env, level); |
1193 | 05330448 | aliguori | if (ret < 0) |
1194 | 05330448 | aliguori | return ret;
|
1195 | 05330448 | aliguori | |
1196 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1197 | ea643051 | Jan Kiszka | ret = kvm_put_mp_state(env); |
1198 | ea643051 | Jan Kiszka | if (ret < 0) |
1199 | ea643051 | Jan Kiszka | return ret;
|
1200 | ea643051 | Jan Kiszka | } |
1201 | f8d926e9 | Jan Kiszka | |
1202 | ea643051 | Jan Kiszka | ret = kvm_put_vcpu_events(env, level); |
1203 | a0fb002c | Jan Kiszka | if (ret < 0) |
1204 | a0fb002c | Jan Kiszka | return ret;
|
1205 | a0fb002c | Jan Kiszka | |
1206 | b0b1d690 | Jan Kiszka | /* must be last */
|
1207 | b0b1d690 | Jan Kiszka | ret = kvm_guest_debug_workarounds(env); |
1208 | b0b1d690 | Jan Kiszka | if (ret < 0) |
1209 | b0b1d690 | Jan Kiszka | return ret;
|
1210 | b0b1d690 | Jan Kiszka | |
1211 | ff44f1a3 | Jan Kiszka | ret = kvm_put_debugregs(env); |
1212 | ff44f1a3 | Jan Kiszka | if (ret < 0) |
1213 | ff44f1a3 | Jan Kiszka | return ret;
|
1214 | ff44f1a3 | Jan Kiszka | |
1215 | 05330448 | aliguori | return 0; |
1216 | 05330448 | aliguori | } |
1217 | 05330448 | aliguori | |
1218 | 05330448 | aliguori | int kvm_arch_get_registers(CPUState *env)
|
1219 | 05330448 | aliguori | { |
1220 | 05330448 | aliguori | int ret;
|
1221 | 05330448 | aliguori | |
1222 | dbaa07c4 | Jan Kiszka | assert(cpu_is_stopped(env) || qemu_cpu_self(env)); |
1223 | dbaa07c4 | Jan Kiszka | |
1224 | 05330448 | aliguori | ret = kvm_getput_regs(env, 0);
|
1225 | 05330448 | aliguori | if (ret < 0) |
1226 | 05330448 | aliguori | return ret;
|
1227 | 05330448 | aliguori | |
1228 | f1665b21 | Sheng Yang | ret = kvm_get_xsave(env); |
1229 | f1665b21 | Sheng Yang | if (ret < 0) |
1230 | f1665b21 | Sheng Yang | return ret;
|
1231 | f1665b21 | Sheng Yang | |
1232 | f1665b21 | Sheng Yang | ret = kvm_get_xcrs(env); |
1233 | 05330448 | aliguori | if (ret < 0) |
1234 | 05330448 | aliguori | return ret;
|
1235 | 05330448 | aliguori | |
1236 | 05330448 | aliguori | ret = kvm_get_sregs(env); |
1237 | 05330448 | aliguori | if (ret < 0) |
1238 | 05330448 | aliguori | return ret;
|
1239 | 05330448 | aliguori | |
1240 | 05330448 | aliguori | ret = kvm_get_msrs(env); |
1241 | 05330448 | aliguori | if (ret < 0) |
1242 | 05330448 | aliguori | return ret;
|
1243 | 05330448 | aliguori | |
1244 | 5a2e3c2e | Jan Kiszka | ret = kvm_get_mp_state(env); |
1245 | 5a2e3c2e | Jan Kiszka | if (ret < 0) |
1246 | 5a2e3c2e | Jan Kiszka | return ret;
|
1247 | 5a2e3c2e | Jan Kiszka | |
1248 | a0fb002c | Jan Kiszka | ret = kvm_get_vcpu_events(env); |
1249 | a0fb002c | Jan Kiszka | if (ret < 0) |
1250 | a0fb002c | Jan Kiszka | return ret;
|
1251 | a0fb002c | Jan Kiszka | |
1252 | ff44f1a3 | Jan Kiszka | ret = kvm_get_debugregs(env); |
1253 | ff44f1a3 | Jan Kiszka | if (ret < 0) |
1254 | ff44f1a3 | Jan Kiszka | return ret;
|
1255 | ff44f1a3 | Jan Kiszka | |
1256 | 05330448 | aliguori | return 0; |
1257 | 05330448 | aliguori | } |
1258 | 05330448 | aliguori | |
1259 | 05330448 | aliguori | int kvm_arch_pre_run(CPUState *env, struct kvm_run *run) |
1260 | 05330448 | aliguori | { |
1261 | 05330448 | aliguori | /* Try to inject an interrupt if the guest can accept it */
|
1262 | 05330448 | aliguori | if (run->ready_for_interrupt_injection &&
|
1263 | 05330448 | aliguori | (env->interrupt_request & CPU_INTERRUPT_HARD) && |
1264 | 05330448 | aliguori | (env->eflags & IF_MASK)) { |
1265 | 05330448 | aliguori | int irq;
|
1266 | 05330448 | aliguori | |
1267 | 05330448 | aliguori | env->interrupt_request &= ~CPU_INTERRUPT_HARD; |
1268 | 05330448 | aliguori | irq = cpu_get_pic_interrupt(env); |
1269 | 05330448 | aliguori | if (irq >= 0) { |
1270 | 05330448 | aliguori | struct kvm_interrupt intr;
|
1271 | 05330448 | aliguori | intr.irq = irq; |
1272 | 05330448 | aliguori | /* FIXME: errors */
|
1273 | 8c0d577e | Blue Swirl | DPRINTF("injected interrupt %d\n", irq);
|
1274 | 05330448 | aliguori | kvm_vcpu_ioctl(env, KVM_INTERRUPT, &intr); |
1275 | 05330448 | aliguori | } |
1276 | 05330448 | aliguori | } |
1277 | 05330448 | aliguori | |
1278 | 05330448 | aliguori | /* If we have an interrupt but the guest is not ready to receive an
|
1279 | 05330448 | aliguori | * interrupt, request an interrupt window exit. This will
|
1280 | 05330448 | aliguori | * cause a return to userspace as soon as the guest is ready to
|
1281 | 05330448 | aliguori | * receive interrupts. */
|
1282 | 05330448 | aliguori | if ((env->interrupt_request & CPU_INTERRUPT_HARD))
|
1283 | 05330448 | aliguori | run->request_interrupt_window = 1;
|
1284 | 05330448 | aliguori | else
|
1285 | 05330448 | aliguori | run->request_interrupt_window = 0;
|
1286 | 05330448 | aliguori | |
1287 | 8c0d577e | Blue Swirl | DPRINTF("setting tpr\n");
|
1288 | 4a942cea | Blue Swirl | run->cr8 = cpu_get_apic_tpr(env->apic_state); |
1289 | 05330448 | aliguori | |
1290 | 05330448 | aliguori | return 0; |
1291 | 05330448 | aliguori | } |
1292 | 05330448 | aliguori | |
1293 | 05330448 | aliguori | int kvm_arch_post_run(CPUState *env, struct kvm_run *run) |
1294 | 05330448 | aliguori | { |
1295 | 05330448 | aliguori | if (run->if_flag)
|
1296 | 05330448 | aliguori | env->eflags |= IF_MASK; |
1297 | 05330448 | aliguori | else
|
1298 | 05330448 | aliguori | env->eflags &= ~IF_MASK; |
1299 | 05330448 | aliguori | |
1300 | 4a942cea | Blue Swirl | cpu_set_apic_tpr(env->apic_state, run->cr8); |
1301 | 4a942cea | Blue Swirl | cpu_set_apic_base(env->apic_state, run->apic_base); |
1302 | 05330448 | aliguori | |
1303 | 05330448 | aliguori | return 0; |
1304 | 05330448 | aliguori | } |
1305 | 05330448 | aliguori | |
1306 | 0af691d7 | Marcelo Tosatti | int kvm_arch_process_irqchip_events(CPUState *env)
|
1307 | 0af691d7 | Marcelo Tosatti | { |
1308 | 0af691d7 | Marcelo Tosatti | if (env->interrupt_request & CPU_INTERRUPT_INIT) {
|
1309 | 0af691d7 | Marcelo Tosatti | kvm_cpu_synchronize_state(env); |
1310 | 0af691d7 | Marcelo Tosatti | do_cpu_init(env); |
1311 | 0af691d7 | Marcelo Tosatti | env->exception_index = EXCP_HALTED; |
1312 | 0af691d7 | Marcelo Tosatti | } |
1313 | 0af691d7 | Marcelo Tosatti | |
1314 | 0af691d7 | Marcelo Tosatti | if (env->interrupt_request & CPU_INTERRUPT_SIPI) {
|
1315 | 0af691d7 | Marcelo Tosatti | kvm_cpu_synchronize_state(env); |
1316 | 0af691d7 | Marcelo Tosatti | do_cpu_sipi(env); |
1317 | 0af691d7 | Marcelo Tosatti | } |
1318 | 0af691d7 | Marcelo Tosatti | |
1319 | 0af691d7 | Marcelo Tosatti | return env->halted;
|
1320 | 0af691d7 | Marcelo Tosatti | } |
1321 | 0af691d7 | Marcelo Tosatti | |
1322 | 05330448 | aliguori | static int kvm_handle_halt(CPUState *env) |
1323 | 05330448 | aliguori | { |
1324 | 05330448 | aliguori | if (!((env->interrupt_request & CPU_INTERRUPT_HARD) &&
|
1325 | 05330448 | aliguori | (env->eflags & IF_MASK)) && |
1326 | 05330448 | aliguori | !(env->interrupt_request & CPU_INTERRUPT_NMI)) { |
1327 | 05330448 | aliguori | env->halted = 1;
|
1328 | 05330448 | aliguori | env->exception_index = EXCP_HLT; |
1329 | 05330448 | aliguori | return 0; |
1330 | 05330448 | aliguori | } |
1331 | 05330448 | aliguori | |
1332 | 05330448 | aliguori | return 1; |
1333 | 05330448 | aliguori | } |
1334 | 05330448 | aliguori | |
1335 | 05330448 | aliguori | int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run) |
1336 | 05330448 | aliguori | { |
1337 | 05330448 | aliguori | int ret = 0; |
1338 | 05330448 | aliguori | |
1339 | 05330448 | aliguori | switch (run->exit_reason) {
|
1340 | 05330448 | aliguori | case KVM_EXIT_HLT:
|
1341 | 8c0d577e | Blue Swirl | DPRINTF("handle_hlt\n");
|
1342 | 05330448 | aliguori | ret = kvm_handle_halt(env); |
1343 | 05330448 | aliguori | break;
|
1344 | 05330448 | aliguori | } |
1345 | 05330448 | aliguori | |
1346 | 05330448 | aliguori | return ret;
|
1347 | 05330448 | aliguori | } |
1348 | e22a25c9 | aliguori | |
1349 | e22a25c9 | aliguori | #ifdef KVM_CAP_SET_GUEST_DEBUG
|
1350 | e22a25c9 | aliguori | int kvm_arch_insert_sw_breakpoint(CPUState *env, struct kvm_sw_breakpoint *bp) |
1351 | e22a25c9 | aliguori | { |
1352 | 38972938 | Juan Quintela | static const uint8_t int3 = 0xcc; |
1353 | 64bf3f4e | aliguori | |
1354 | e22a25c9 | aliguori | if (cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&bp->saved_insn, 1, 0) || |
1355 | 64bf3f4e | aliguori | cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&int3, 1, 1)) |
1356 | e22a25c9 | aliguori | return -EINVAL;
|
1357 | e22a25c9 | aliguori | return 0; |
1358 | e22a25c9 | aliguori | } |
1359 | e22a25c9 | aliguori | |
1360 | e22a25c9 | aliguori | int kvm_arch_remove_sw_breakpoint(CPUState *env, struct kvm_sw_breakpoint *bp) |
1361 | e22a25c9 | aliguori | { |
1362 | e22a25c9 | aliguori | uint8_t int3; |
1363 | e22a25c9 | aliguori | |
1364 | e22a25c9 | aliguori | if (cpu_memory_rw_debug(env, bp->pc, &int3, 1, 0) || int3 != 0xcc || |
1365 | 64bf3f4e | aliguori | cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&bp->saved_insn, 1, 1)) |
1366 | e22a25c9 | aliguori | return -EINVAL;
|
1367 | e22a25c9 | aliguori | return 0; |
1368 | e22a25c9 | aliguori | } |
1369 | e22a25c9 | aliguori | |
1370 | e22a25c9 | aliguori | static struct { |
1371 | e22a25c9 | aliguori | target_ulong addr; |
1372 | e22a25c9 | aliguori | int len;
|
1373 | e22a25c9 | aliguori | int type;
|
1374 | e22a25c9 | aliguori | } hw_breakpoint[4];
|
1375 | e22a25c9 | aliguori | |
1376 | e22a25c9 | aliguori | static int nb_hw_breakpoint; |
1377 | e22a25c9 | aliguori | |
1378 | e22a25c9 | aliguori | static int find_hw_breakpoint(target_ulong addr, int len, int type) |
1379 | e22a25c9 | aliguori | { |
1380 | e22a25c9 | aliguori | int n;
|
1381 | e22a25c9 | aliguori | |
1382 | e22a25c9 | aliguori | for (n = 0; n < nb_hw_breakpoint; n++) |
1383 | e22a25c9 | aliguori | if (hw_breakpoint[n].addr == addr && hw_breakpoint[n].type == type &&
|
1384 | e22a25c9 | aliguori | (hw_breakpoint[n].len == len || len == -1))
|
1385 | e22a25c9 | aliguori | return n;
|
1386 | e22a25c9 | aliguori | return -1; |
1387 | e22a25c9 | aliguori | } |
1388 | e22a25c9 | aliguori | |
1389 | e22a25c9 | aliguori | int kvm_arch_insert_hw_breakpoint(target_ulong addr,
|
1390 | e22a25c9 | aliguori | target_ulong len, int type)
|
1391 | e22a25c9 | aliguori | { |
1392 | e22a25c9 | aliguori | switch (type) {
|
1393 | e22a25c9 | aliguori | case GDB_BREAKPOINT_HW:
|
1394 | e22a25c9 | aliguori | len = 1;
|
1395 | e22a25c9 | aliguori | break;
|
1396 | e22a25c9 | aliguori | case GDB_WATCHPOINT_WRITE:
|
1397 | e22a25c9 | aliguori | case GDB_WATCHPOINT_ACCESS:
|
1398 | e22a25c9 | aliguori | switch (len) {
|
1399 | e22a25c9 | aliguori | case 1: |
1400 | e22a25c9 | aliguori | break;
|
1401 | e22a25c9 | aliguori | case 2: |
1402 | e22a25c9 | aliguori | case 4: |
1403 | e22a25c9 | aliguori | case 8: |
1404 | e22a25c9 | aliguori | if (addr & (len - 1)) |
1405 | e22a25c9 | aliguori | return -EINVAL;
|
1406 | e22a25c9 | aliguori | break;
|
1407 | e22a25c9 | aliguori | default:
|
1408 | e22a25c9 | aliguori | return -EINVAL;
|
1409 | e22a25c9 | aliguori | } |
1410 | e22a25c9 | aliguori | break;
|
1411 | e22a25c9 | aliguori | default:
|
1412 | e22a25c9 | aliguori | return -ENOSYS;
|
1413 | e22a25c9 | aliguori | } |
1414 | e22a25c9 | aliguori | |
1415 | e22a25c9 | aliguori | if (nb_hw_breakpoint == 4) |
1416 | e22a25c9 | aliguori | return -ENOBUFS;
|
1417 | e22a25c9 | aliguori | |
1418 | e22a25c9 | aliguori | if (find_hw_breakpoint(addr, len, type) >= 0) |
1419 | e22a25c9 | aliguori | return -EEXIST;
|
1420 | e22a25c9 | aliguori | |
1421 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].addr = addr; |
1422 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].len = len; |
1423 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].type = type; |
1424 | e22a25c9 | aliguori | nb_hw_breakpoint++; |
1425 | e22a25c9 | aliguori | |
1426 | e22a25c9 | aliguori | return 0; |
1427 | e22a25c9 | aliguori | } |
1428 | e22a25c9 | aliguori | |
1429 | e22a25c9 | aliguori | int kvm_arch_remove_hw_breakpoint(target_ulong addr,
|
1430 | e22a25c9 | aliguori | target_ulong len, int type)
|
1431 | e22a25c9 | aliguori | { |
1432 | e22a25c9 | aliguori | int n;
|
1433 | e22a25c9 | aliguori | |
1434 | e22a25c9 | aliguori | n = find_hw_breakpoint(addr, (type == GDB_BREAKPOINT_HW) ? 1 : len, type);
|
1435 | e22a25c9 | aliguori | if (n < 0) |
1436 | e22a25c9 | aliguori | return -ENOENT;
|
1437 | e22a25c9 | aliguori | |
1438 | e22a25c9 | aliguori | nb_hw_breakpoint--; |
1439 | e22a25c9 | aliguori | hw_breakpoint[n] = hw_breakpoint[nb_hw_breakpoint]; |
1440 | e22a25c9 | aliguori | |
1441 | e22a25c9 | aliguori | return 0; |
1442 | e22a25c9 | aliguori | } |
1443 | e22a25c9 | aliguori | |
1444 | e22a25c9 | aliguori | void kvm_arch_remove_all_hw_breakpoints(void) |
1445 | e22a25c9 | aliguori | { |
1446 | e22a25c9 | aliguori | nb_hw_breakpoint = 0;
|
1447 | e22a25c9 | aliguori | } |
1448 | e22a25c9 | aliguori | |
1449 | e22a25c9 | aliguori | static CPUWatchpoint hw_watchpoint;
|
1450 | e22a25c9 | aliguori | |
1451 | e22a25c9 | aliguori | int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info) |
1452 | e22a25c9 | aliguori | { |
1453 | e22a25c9 | aliguori | int handle = 0; |
1454 | e22a25c9 | aliguori | int n;
|
1455 | e22a25c9 | aliguori | |
1456 | e22a25c9 | aliguori | if (arch_info->exception == 1) { |
1457 | e22a25c9 | aliguori | if (arch_info->dr6 & (1 << 14)) { |
1458 | e22a25c9 | aliguori | if (cpu_single_env->singlestep_enabled)
|
1459 | e22a25c9 | aliguori | handle = 1;
|
1460 | e22a25c9 | aliguori | } else {
|
1461 | e22a25c9 | aliguori | for (n = 0; n < 4; n++) |
1462 | e22a25c9 | aliguori | if (arch_info->dr6 & (1 << n)) |
1463 | e22a25c9 | aliguori | switch ((arch_info->dr7 >> (16 + n*4)) & 0x3) { |
1464 | e22a25c9 | aliguori | case 0x0: |
1465 | e22a25c9 | aliguori | handle = 1;
|
1466 | e22a25c9 | aliguori | break;
|
1467 | e22a25c9 | aliguori | case 0x1: |
1468 | e22a25c9 | aliguori | handle = 1;
|
1469 | e22a25c9 | aliguori | cpu_single_env->watchpoint_hit = &hw_watchpoint; |
1470 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
1471 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_WRITE; |
1472 | e22a25c9 | aliguori | break;
|
1473 | e22a25c9 | aliguori | case 0x3: |
1474 | e22a25c9 | aliguori | handle = 1;
|
1475 | e22a25c9 | aliguori | cpu_single_env->watchpoint_hit = &hw_watchpoint; |
1476 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
1477 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_ACCESS; |
1478 | e22a25c9 | aliguori | break;
|
1479 | e22a25c9 | aliguori | } |
1480 | e22a25c9 | aliguori | } |
1481 | e22a25c9 | aliguori | } else if (kvm_find_sw_breakpoint(cpu_single_env, arch_info->pc)) |
1482 | e22a25c9 | aliguori | handle = 1;
|
1483 | e22a25c9 | aliguori | |
1484 | b0b1d690 | Jan Kiszka | if (!handle) {
|
1485 | b0b1d690 | Jan Kiszka | cpu_synchronize_state(cpu_single_env); |
1486 | b0b1d690 | Jan Kiszka | assert(cpu_single_env->exception_injected == -1);
|
1487 | b0b1d690 | Jan Kiszka | |
1488 | b0b1d690 | Jan Kiszka | cpu_single_env->exception_injected = arch_info->exception; |
1489 | b0b1d690 | Jan Kiszka | cpu_single_env->has_error_code = 0;
|
1490 | b0b1d690 | Jan Kiszka | } |
1491 | e22a25c9 | aliguori | |
1492 | e22a25c9 | aliguori | return handle;
|
1493 | e22a25c9 | aliguori | } |
1494 | e22a25c9 | aliguori | |
1495 | e22a25c9 | aliguori | void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg) |
1496 | e22a25c9 | aliguori | { |
1497 | e22a25c9 | aliguori | const uint8_t type_code[] = {
|
1498 | e22a25c9 | aliguori | [GDB_BREAKPOINT_HW] = 0x0,
|
1499 | e22a25c9 | aliguori | [GDB_WATCHPOINT_WRITE] = 0x1,
|
1500 | e22a25c9 | aliguori | [GDB_WATCHPOINT_ACCESS] = 0x3
|
1501 | e22a25c9 | aliguori | }; |
1502 | e22a25c9 | aliguori | const uint8_t len_code[] = {
|
1503 | e22a25c9 | aliguori | [1] = 0x0, [2] = 0x1, [4] = 0x3, [8] = 0x2 |
1504 | e22a25c9 | aliguori | }; |
1505 | e22a25c9 | aliguori | int n;
|
1506 | e22a25c9 | aliguori | |
1507 | e22a25c9 | aliguori | if (kvm_sw_breakpoints_active(env))
|
1508 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP; |
1509 | e22a25c9 | aliguori | |
1510 | e22a25c9 | aliguori | if (nb_hw_breakpoint > 0) { |
1511 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP; |
1512 | e22a25c9 | aliguori | dbg->arch.debugreg[7] = 0x0600; |
1513 | e22a25c9 | aliguori | for (n = 0; n < nb_hw_breakpoint; n++) { |
1514 | e22a25c9 | aliguori | dbg->arch.debugreg[n] = hw_breakpoint[n].addr; |
1515 | e22a25c9 | aliguori | dbg->arch.debugreg[7] |= (2 << (n * 2)) | |
1516 | e22a25c9 | aliguori | (type_code[hw_breakpoint[n].type] << (16 + n*4)) | |
1517 | e22a25c9 | aliguori | (len_code[hw_breakpoint[n].len] << (18 + n*4)); |
1518 | e22a25c9 | aliguori | } |
1519 | e22a25c9 | aliguori | } |
1520 | f1665b21 | Sheng Yang | /* Legal xcr0 for loading */
|
1521 | f1665b21 | Sheng Yang | env->xcr0 = 1;
|
1522 | e22a25c9 | aliguori | } |
1523 | e22a25c9 | aliguori | #endif /* KVM_CAP_SET_GUEST_DEBUG */ |
1524 | 4513d923 | Gleb Natapov | |
1525 | 4513d923 | Gleb Natapov | bool kvm_arch_stop_on_emulation_error(CPUState *env)
|
1526 | 4513d923 | Gleb Natapov | { |
1527 | 4513d923 | Gleb Natapov | return !(env->cr[0] & CR0_PE_MASK) || |
1528 | 4513d923 | Gleb Natapov | ((env->segs[R_CS].selector & 3) != 3); |
1529 | 4513d923 | Gleb Natapov | } |