root / target-i386 / kvm.c @ a75b3e0f
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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 | 25d2e361 | Marcelo Tosatti | #include <sys/utsname.h> |
19 | 05330448 | aliguori | |
20 | 05330448 | aliguori | #include <linux/kvm.h> |
21 | 5802e066 | Jan Kiszka | #include <linux/kvm_para.h> |
22 | 05330448 | aliguori | |
23 | 05330448 | aliguori | #include "qemu-common.h" |
24 | 05330448 | aliguori | #include "sysemu.h" |
25 | 05330448 | aliguori | #include "kvm.h" |
26 | 05330448 | aliguori | #include "cpu.h" |
27 | e22a25c9 | aliguori | #include "gdbstub.h" |
28 | 0e607a80 | Jan Kiszka | #include "host-utils.h" |
29 | 4c5b10b7 | Jes Sorensen | #include "hw/pc.h" |
30 | 408392b3 | Sheng Yang | #include "hw/apic.h" |
31 | 35bed8ee | Paul Brook | #include "ioport.h" |
32 | eab70139 | Vadim Rozenfeld | #include "hyperv.h" |
33 | 05330448 | aliguori | |
34 | 05330448 | aliguori | //#define DEBUG_KVM
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35 | 05330448 | aliguori | |
36 | 05330448 | aliguori | #ifdef DEBUG_KVM
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37 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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38 | 05330448 | aliguori | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
39 | 05330448 | aliguori | #else
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40 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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41 | 05330448 | aliguori | do { } while (0) |
42 | 05330448 | aliguori | #endif
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43 | 05330448 | aliguori | |
44 | 1a03675d | Glauber Costa | #define MSR_KVM_WALL_CLOCK 0x11 |
45 | 1a03675d | Glauber Costa | #define MSR_KVM_SYSTEM_TIME 0x12 |
46 | 1a03675d | Glauber Costa | |
47 | c0532a76 | Marcelo Tosatti | #ifndef BUS_MCEERR_AR
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48 | c0532a76 | Marcelo Tosatti | #define BUS_MCEERR_AR 4 |
49 | c0532a76 | Marcelo Tosatti | #endif
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50 | c0532a76 | Marcelo Tosatti | #ifndef BUS_MCEERR_AO
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51 | c0532a76 | Marcelo Tosatti | #define BUS_MCEERR_AO 5 |
52 | c0532a76 | Marcelo Tosatti | #endif
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53 | c0532a76 | Marcelo Tosatti | |
54 | 94a8d39a | Jan Kiszka | const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
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55 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(SET_TSS_ADDR), |
56 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(EXT_CPUID), |
57 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(MP_STATE), |
58 | 94a8d39a | Jan Kiszka | KVM_CAP_LAST_INFO |
59 | 94a8d39a | Jan Kiszka | }; |
60 | 25d2e361 | Marcelo Tosatti | |
61 | c3a3a7d3 | Jan Kiszka | static bool has_msr_star; |
62 | c3a3a7d3 | Jan Kiszka | static bool has_msr_hsave_pa; |
63 | aa82ba54 | Liu, Jinsong | static bool has_msr_tsc_deadline; |
64 | c5999bfc | Jan Kiszka | static bool has_msr_async_pf_en; |
65 | 21e87c46 | Avi Kivity | static bool has_msr_misc_enable; |
66 | 25d2e361 | Marcelo Tosatti | static int lm_capable_kernel; |
67 | b827df58 | Avi Kivity | |
68 | b827df58 | Avi Kivity | static struct kvm_cpuid2 *try_get_cpuid(KVMState *s, int max) |
69 | b827df58 | Avi Kivity | { |
70 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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71 | b827df58 | Avi Kivity | int r, size;
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72 | b827df58 | Avi Kivity | |
73 | b827df58 | Avi Kivity | size = sizeof(*cpuid) + max * sizeof(*cpuid->entries); |
74 | 7267c094 | Anthony Liguori | cpuid = (struct kvm_cpuid2 *)g_malloc0(size);
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75 | b827df58 | Avi Kivity | cpuid->nent = max; |
76 | b827df58 | Avi Kivity | r = kvm_ioctl(s, KVM_GET_SUPPORTED_CPUID, cpuid); |
77 | 76ae317f | Mark McLoughlin | if (r == 0 && cpuid->nent >= max) { |
78 | 76ae317f | Mark McLoughlin | r = -E2BIG; |
79 | 76ae317f | Mark McLoughlin | } |
80 | b827df58 | Avi Kivity | if (r < 0) { |
81 | b827df58 | Avi Kivity | if (r == -E2BIG) {
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82 | 7267c094 | Anthony Liguori | g_free(cpuid); |
83 | b827df58 | Avi Kivity | return NULL; |
84 | b827df58 | Avi Kivity | } else {
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85 | b827df58 | Avi Kivity | fprintf(stderr, "KVM_GET_SUPPORTED_CPUID failed: %s\n",
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86 | b827df58 | Avi Kivity | strerror(-r)); |
87 | b827df58 | Avi Kivity | exit(1);
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88 | b827df58 | Avi Kivity | } |
89 | b827df58 | Avi Kivity | } |
90 | b827df58 | Avi Kivity | return cpuid;
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91 | b827df58 | Avi Kivity | } |
92 | b827df58 | Avi Kivity | |
93 | 0c31b744 | Glauber Costa | struct kvm_para_features {
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94 | 0c31b744 | Glauber Costa | int cap;
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95 | 0c31b744 | Glauber Costa | int feature;
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96 | 0c31b744 | Glauber Costa | } para_features[] = { |
97 | 0c31b744 | Glauber Costa | { KVM_CAP_CLOCKSOURCE, KVM_FEATURE_CLOCKSOURCE }, |
98 | 0c31b744 | Glauber Costa | { KVM_CAP_NOP_IO_DELAY, KVM_FEATURE_NOP_IO_DELAY }, |
99 | 0c31b744 | Glauber Costa | { KVM_CAP_PV_MMU, KVM_FEATURE_MMU_OP }, |
100 | 0c31b744 | Glauber Costa | { KVM_CAP_ASYNC_PF, KVM_FEATURE_ASYNC_PF }, |
101 | 0c31b744 | Glauber Costa | { -1, -1 } |
102 | 0c31b744 | Glauber Costa | }; |
103 | 0c31b744 | Glauber Costa | |
104 | ba9bc59e | Jan Kiszka | static int get_para_features(KVMState *s) |
105 | 0c31b744 | Glauber Costa | { |
106 | 0c31b744 | Glauber Costa | int i, features = 0; |
107 | 0c31b744 | Glauber Costa | |
108 | 0c31b744 | Glauber Costa | for (i = 0; i < ARRAY_SIZE(para_features) - 1; i++) { |
109 | ba9bc59e | Jan Kiszka | if (kvm_check_extension(s, para_features[i].cap)) {
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110 | 0c31b744 | Glauber Costa | features |= (1 << para_features[i].feature);
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111 | 0c31b744 | Glauber Costa | } |
112 | 0c31b744 | Glauber Costa | } |
113 | 0c31b744 | Glauber Costa | |
114 | 0c31b744 | Glauber Costa | return features;
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115 | 0c31b744 | Glauber Costa | } |
116 | 0c31b744 | Glauber Costa | |
117 | 0c31b744 | Glauber Costa | |
118 | ba9bc59e | Jan Kiszka | uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function, |
119 | c958a8bd | Sheng Yang | uint32_t index, int reg)
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120 | b827df58 | Avi Kivity | { |
121 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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122 | b827df58 | Avi Kivity | int i, max;
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123 | b827df58 | Avi Kivity | uint32_t ret = 0;
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124 | b827df58 | Avi Kivity | uint32_t cpuid_1_edx; |
125 | 0c31b744 | Glauber Costa | int has_kvm_features = 0; |
126 | b827df58 | Avi Kivity | |
127 | b827df58 | Avi Kivity | max = 1;
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128 | ba9bc59e | Jan Kiszka | while ((cpuid = try_get_cpuid(s, max)) == NULL) { |
129 | b827df58 | Avi Kivity | max *= 2;
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130 | b827df58 | Avi Kivity | } |
131 | b827df58 | Avi Kivity | |
132 | b827df58 | Avi Kivity | for (i = 0; i < cpuid->nent; ++i) { |
133 | c958a8bd | Sheng Yang | if (cpuid->entries[i].function == function &&
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134 | c958a8bd | Sheng Yang | cpuid->entries[i].index == index) { |
135 | 0c31b744 | Glauber Costa | if (cpuid->entries[i].function == KVM_CPUID_FEATURES) {
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136 | 0c31b744 | Glauber Costa | has_kvm_features = 1;
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137 | 0c31b744 | Glauber Costa | } |
138 | b827df58 | Avi Kivity | switch (reg) {
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139 | b827df58 | Avi Kivity | case R_EAX:
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140 | b827df58 | Avi Kivity | ret = cpuid->entries[i].eax; |
141 | b827df58 | Avi Kivity | break;
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142 | b827df58 | Avi Kivity | case R_EBX:
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143 | b827df58 | Avi Kivity | ret = cpuid->entries[i].ebx; |
144 | b827df58 | Avi Kivity | break;
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145 | b827df58 | Avi Kivity | case R_ECX:
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146 | b827df58 | Avi Kivity | ret = cpuid->entries[i].ecx; |
147 | b827df58 | Avi Kivity | break;
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148 | b827df58 | Avi Kivity | case R_EDX:
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149 | b827df58 | Avi Kivity | ret = cpuid->entries[i].edx; |
150 | 19ccb8ea | Jan Kiszka | switch (function) {
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151 | 19ccb8ea | Jan Kiszka | case 1: |
152 | 19ccb8ea | Jan Kiszka | /* KVM before 2.6.30 misreports the following features */
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153 | 19ccb8ea | Jan Kiszka | ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA; |
154 | 19ccb8ea | Jan Kiszka | break;
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155 | 19ccb8ea | Jan Kiszka | case 0x80000001: |
156 | b827df58 | Avi Kivity | /* On Intel, kvm returns cpuid according to the Intel spec,
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157 | b827df58 | Avi Kivity | * so add missing bits according to the AMD spec:
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158 | b827df58 | Avi Kivity | */
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159 | ba9bc59e | Jan Kiszka | cpuid_1_edx = kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); |
160 | c1667e40 | Gleb Natapov | ret |= cpuid_1_edx & 0x183f7ff;
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161 | 19ccb8ea | Jan Kiszka | break;
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162 | b827df58 | Avi Kivity | } |
163 | b827df58 | Avi Kivity | break;
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164 | b827df58 | Avi Kivity | } |
165 | b827df58 | Avi Kivity | } |
166 | b827df58 | Avi Kivity | } |
167 | b827df58 | Avi Kivity | |
168 | 7267c094 | Anthony Liguori | g_free(cpuid); |
169 | b827df58 | Avi Kivity | |
170 | 0c31b744 | Glauber Costa | /* fallback for older kernels */
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171 | 0c31b744 | Glauber Costa | if (!has_kvm_features && (function == KVM_CPUID_FEATURES)) {
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172 | ba9bc59e | Jan Kiszka | ret = get_para_features(s); |
173 | b9bec74b | Jan Kiszka | } |
174 | 0c31b744 | Glauber Costa | |
175 | 0c31b744 | Glauber Costa | return ret;
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176 | bb0300dc | Gleb Natapov | } |
177 | bb0300dc | Gleb Natapov | |
178 | 3c85e74f | Huang Ying | typedef struct HWPoisonPage { |
179 | 3c85e74f | Huang Ying | ram_addr_t ram_addr; |
180 | 3c85e74f | Huang Ying | QLIST_ENTRY(HWPoisonPage) list; |
181 | 3c85e74f | Huang Ying | } HWPoisonPage; |
182 | 3c85e74f | Huang Ying | |
183 | 3c85e74f | Huang Ying | static QLIST_HEAD(, HWPoisonPage) hwpoison_page_list =
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184 | 3c85e74f | Huang Ying | QLIST_HEAD_INITIALIZER(hwpoison_page_list); |
185 | 3c85e74f | Huang Ying | |
186 | 3c85e74f | Huang Ying | static void kvm_unpoison_all(void *param) |
187 | 3c85e74f | Huang Ying | { |
188 | 3c85e74f | Huang Ying | HWPoisonPage *page, *next_page; |
189 | 3c85e74f | Huang Ying | |
190 | 3c85e74f | Huang Ying | QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) { |
191 | 3c85e74f | Huang Ying | QLIST_REMOVE(page, list); |
192 | 3c85e74f | Huang Ying | qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE); |
193 | 7267c094 | Anthony Liguori | g_free(page); |
194 | 3c85e74f | Huang Ying | } |
195 | 3c85e74f | Huang Ying | } |
196 | 3c85e74f | Huang Ying | |
197 | 3c85e74f | Huang Ying | static void kvm_hwpoison_page_add(ram_addr_t ram_addr) |
198 | 3c85e74f | Huang Ying | { |
199 | 3c85e74f | Huang Ying | HWPoisonPage *page; |
200 | 3c85e74f | Huang Ying | |
201 | 3c85e74f | Huang Ying | QLIST_FOREACH(page, &hwpoison_page_list, list) { |
202 | 3c85e74f | Huang Ying | if (page->ram_addr == ram_addr) {
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203 | 3c85e74f | Huang Ying | return;
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204 | 3c85e74f | Huang Ying | } |
205 | 3c85e74f | Huang Ying | } |
206 | 7267c094 | Anthony Liguori | page = g_malloc(sizeof(HWPoisonPage));
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207 | 3c85e74f | Huang Ying | page->ram_addr = ram_addr; |
208 | 3c85e74f | Huang Ying | QLIST_INSERT_HEAD(&hwpoison_page_list, page, list); |
209 | 3c85e74f | Huang Ying | } |
210 | 3c85e74f | Huang Ying | |
211 | e7701825 | Marcelo Tosatti | static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap, |
212 | e7701825 | Marcelo Tosatti | int *max_banks)
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213 | e7701825 | Marcelo Tosatti | { |
214 | e7701825 | Marcelo Tosatti | int r;
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215 | e7701825 | Marcelo Tosatti | |
216 | 14a09518 | Lai Jiangshan | r = kvm_check_extension(s, KVM_CAP_MCE); |
217 | e7701825 | Marcelo Tosatti | if (r > 0) { |
218 | e7701825 | Marcelo Tosatti | *max_banks = r; |
219 | e7701825 | Marcelo Tosatti | return kvm_ioctl(s, KVM_X86_GET_MCE_CAP_SUPPORTED, mce_cap);
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220 | e7701825 | Marcelo Tosatti | } |
221 | e7701825 | Marcelo Tosatti | return -ENOSYS;
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222 | e7701825 | Marcelo Tosatti | } |
223 | e7701825 | Marcelo Tosatti | |
224 | 317ac620 | Andreas Färber | static void kvm_mce_inject(CPUX86State *env, target_phys_addr_t paddr, int code) |
225 | e7701825 | Marcelo Tosatti | { |
226 | c34d440a | Jan Kiszka | uint64_t status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | |
227 | c34d440a | Jan Kiszka | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S; |
228 | c34d440a | Jan Kiszka | uint64_t mcg_status = MCG_STATUS_MCIP; |
229 | e7701825 | Marcelo Tosatti | |
230 | c34d440a | Jan Kiszka | if (code == BUS_MCEERR_AR) {
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231 | c34d440a | Jan Kiszka | status |= MCI_STATUS_AR | 0x134;
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232 | c34d440a | Jan Kiszka | mcg_status |= MCG_STATUS_EIPV; |
233 | c34d440a | Jan Kiszka | } else {
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234 | c34d440a | Jan Kiszka | status |= 0xc0;
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235 | c34d440a | Jan Kiszka | mcg_status |= MCG_STATUS_RIPV; |
236 | 419fb20a | Jan Kiszka | } |
237 | c34d440a | Jan Kiszka | cpu_x86_inject_mce(NULL, env, 9, status, mcg_status, paddr, |
238 | c34d440a | Jan Kiszka | (MCM_ADDR_PHYS << 6) | 0xc, |
239 | c34d440a | Jan Kiszka | cpu_x86_support_mca_broadcast(env) ? |
240 | c34d440a | Jan Kiszka | MCE_INJECT_BROADCAST : 0);
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241 | 419fb20a | Jan Kiszka | } |
242 | 419fb20a | Jan Kiszka | |
243 | 419fb20a | Jan Kiszka | static void hardware_memory_error(void) |
244 | 419fb20a | Jan Kiszka | { |
245 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error!\n");
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246 | 419fb20a | Jan Kiszka | exit(1);
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247 | 419fb20a | Jan Kiszka | } |
248 | 419fb20a | Jan Kiszka | |
249 | 317ac620 | Andreas Färber | int kvm_arch_on_sigbus_vcpu(CPUX86State *env, int code, void *addr) |
250 | 419fb20a | Jan Kiszka | { |
251 | 419fb20a | Jan Kiszka | ram_addr_t ram_addr; |
252 | 419fb20a | Jan Kiszka | target_phys_addr_t paddr; |
253 | 419fb20a | Jan Kiszka | |
254 | 419fb20a | Jan Kiszka | if ((env->mcg_cap & MCG_SER_P) && addr
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255 | c34d440a | Jan Kiszka | && (code == BUS_MCEERR_AR || code == BUS_MCEERR_AO)) { |
256 | c34d440a | Jan Kiszka | if (qemu_ram_addr_from_host(addr, &ram_addr) ||
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257 | 9f213ed9 | Avi Kivity | !kvm_physical_memory_addr_from_host(env->kvm_state, addr, &paddr)) { |
258 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error for memory used by "
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259 | 419fb20a | Jan Kiszka | "QEMU itself instead of guest system!\n");
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260 | 419fb20a | Jan Kiszka | /* Hope we are lucky for AO MCE */
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261 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
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262 | 419fb20a | Jan Kiszka | return 0; |
263 | 419fb20a | Jan Kiszka | } else {
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264 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
265 | 419fb20a | Jan Kiszka | } |
266 | 419fb20a | Jan Kiszka | } |
267 | 3c85e74f | Huang Ying | kvm_hwpoison_page_add(ram_addr); |
268 | c34d440a | Jan Kiszka | kvm_mce_inject(env, paddr, code); |
269 | e56ff191 | Jan Kiszka | } else {
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270 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
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271 | 419fb20a | Jan Kiszka | return 0; |
272 | 419fb20a | Jan Kiszka | } else if (code == BUS_MCEERR_AR) { |
273 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
274 | 419fb20a | Jan Kiszka | } else {
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275 | 419fb20a | Jan Kiszka | return 1; |
276 | 419fb20a | Jan Kiszka | } |
277 | 419fb20a | Jan Kiszka | } |
278 | 419fb20a | Jan Kiszka | return 0; |
279 | 419fb20a | Jan Kiszka | } |
280 | 419fb20a | Jan Kiszka | |
281 | 419fb20a | Jan Kiszka | int kvm_arch_on_sigbus(int code, void *addr) |
282 | 419fb20a | Jan Kiszka | { |
283 | 419fb20a | Jan Kiszka | if ((first_cpu->mcg_cap & MCG_SER_P) && addr && code == BUS_MCEERR_AO) {
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284 | 419fb20a | Jan Kiszka | ram_addr_t ram_addr; |
285 | 419fb20a | Jan Kiszka | target_phys_addr_t paddr; |
286 | 419fb20a | Jan Kiszka | |
287 | 419fb20a | Jan Kiszka | /* Hope we are lucky for AO MCE */
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288 | c34d440a | Jan Kiszka | if (qemu_ram_addr_from_host(addr, &ram_addr) ||
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289 | 9f213ed9 | Avi Kivity | !kvm_physical_memory_addr_from_host(first_cpu->kvm_state, addr, |
290 | 9f213ed9 | Avi Kivity | &paddr)) { |
291 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error for memory used by "
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292 | 419fb20a | Jan Kiszka | "QEMU itself instead of guest system!: %p\n", addr);
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293 | 419fb20a | Jan Kiszka | return 0; |
294 | 419fb20a | Jan Kiszka | } |
295 | 3c85e74f | Huang Ying | kvm_hwpoison_page_add(ram_addr); |
296 | c34d440a | Jan Kiszka | kvm_mce_inject(first_cpu, paddr, code); |
297 | e56ff191 | Jan Kiszka | } else {
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298 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
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299 | 419fb20a | Jan Kiszka | return 0; |
300 | 419fb20a | Jan Kiszka | } else if (code == BUS_MCEERR_AR) { |
301 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
302 | 419fb20a | Jan Kiszka | } else {
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303 | 419fb20a | Jan Kiszka | return 1; |
304 | 419fb20a | Jan Kiszka | } |
305 | 419fb20a | Jan Kiszka | } |
306 | 419fb20a | Jan Kiszka | return 0; |
307 | 419fb20a | Jan Kiszka | } |
308 | e7701825 | Marcelo Tosatti | |
309 | 317ac620 | Andreas Färber | static int kvm_inject_mce_oldstyle(CPUX86State *env) |
310 | ab443475 | Jan Kiszka | { |
311 | ab443475 | Jan Kiszka | if (!kvm_has_vcpu_events() && env->exception_injected == EXCP12_MCHK) {
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312 | ab443475 | Jan Kiszka | unsigned int bank, bank_num = env->mcg_cap & 0xff; |
313 | ab443475 | Jan Kiszka | struct kvm_x86_mce mce;
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314 | ab443475 | Jan Kiszka | |
315 | ab443475 | Jan Kiszka | env->exception_injected = -1;
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316 | ab443475 | Jan Kiszka | |
317 | ab443475 | Jan Kiszka | /*
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318 | ab443475 | Jan Kiszka | * There must be at least one bank in use if an MCE is pending.
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319 | ab443475 | Jan Kiszka | * Find it and use its values for the event injection.
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320 | ab443475 | Jan Kiszka | */
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321 | ab443475 | Jan Kiszka | for (bank = 0; bank < bank_num; bank++) { |
322 | ab443475 | Jan Kiszka | if (env->mce_banks[bank * 4 + 1] & MCI_STATUS_VAL) { |
323 | ab443475 | Jan Kiszka | break;
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324 | ab443475 | Jan Kiszka | } |
325 | ab443475 | Jan Kiszka | } |
326 | ab443475 | Jan Kiszka | assert(bank < bank_num); |
327 | ab443475 | Jan Kiszka | |
328 | ab443475 | Jan Kiszka | mce.bank = bank; |
329 | ab443475 | Jan Kiszka | mce.status = env->mce_banks[bank * 4 + 1]; |
330 | ab443475 | Jan Kiszka | mce.mcg_status = env->mcg_status; |
331 | ab443475 | Jan Kiszka | mce.addr = env->mce_banks[bank * 4 + 2]; |
332 | ab443475 | Jan Kiszka | mce.misc = env->mce_banks[bank * 4 + 3]; |
333 | ab443475 | Jan Kiszka | |
334 | ab443475 | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_X86_SET_MCE, &mce);
|
335 | ab443475 | Jan Kiszka | } |
336 | ab443475 | Jan Kiszka | return 0; |
337 | ab443475 | Jan Kiszka | } |
338 | ab443475 | Jan Kiszka | |
339 | 1dfb4dd9 | Luiz Capitulino | static void cpu_update_state(void *opaque, int running, RunState state) |
340 | b8cc45d6 | Glauber Costa | { |
341 | 317ac620 | Andreas Färber | CPUX86State *env = opaque; |
342 | b8cc45d6 | Glauber Costa | |
343 | b8cc45d6 | Glauber Costa | if (running) {
|
344 | b8cc45d6 | Glauber Costa | env->tsc_valid = false;
|
345 | b8cc45d6 | Glauber Costa | } |
346 | b8cc45d6 | Glauber Costa | } |
347 | b8cc45d6 | Glauber Costa | |
348 | 317ac620 | Andreas Färber | int kvm_arch_init_vcpu(CPUX86State *env)
|
349 | 05330448 | aliguori | { |
350 | 05330448 | aliguori | struct {
|
351 | 486bd5a2 | aliguori | struct kvm_cpuid2 cpuid;
|
352 | 486bd5a2 | aliguori | struct kvm_cpuid_entry2 entries[100]; |
353 | 541dc0d4 | Stefan Weil | } QEMU_PACKED cpuid_data; |
354 | ba9bc59e | Jan Kiszka | KVMState *s = env->kvm_state; |
355 | 486bd5a2 | aliguori | uint32_t limit, i, j, cpuid_i; |
356 | a33609ca | aliguori | uint32_t unused; |
357 | bb0300dc | Gleb Natapov | struct kvm_cpuid_entry2 *c;
|
358 | bb0300dc | Gleb Natapov | uint32_t signature[3];
|
359 | e7429073 | Joerg Roedel | int r;
|
360 | 05330448 | aliguori | |
361 | ba9bc59e | Jan Kiszka | env->cpuid_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); |
362 | 6c0d7ee8 | Andre Przywara | |
363 | 6c0d7ee8 | Andre Przywara | i = env->cpuid_ext_features & CPUID_EXT_HYPERVISOR; |
364 | a75b3e0f | Liu, Jinsong | j = env->cpuid_ext_features & CPUID_EXT_TSC_DEADLINE_TIMER; |
365 | ba9bc59e | Jan Kiszka | env->cpuid_ext_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_ECX); |
366 | 6c0d7ee8 | Andre Przywara | env->cpuid_ext_features |= i; |
367 | a75b3e0f | Liu, Jinsong | if (j && kvm_irqchip_in_kernel() &&
|
368 | a75b3e0f | Liu, Jinsong | kvm_check_extension(s, KVM_CAP_TSC_DEADLINE_TIMER)) { |
369 | a75b3e0f | Liu, Jinsong | env->cpuid_ext_features |= CPUID_EXT_TSC_DEADLINE_TIMER; |
370 | a75b3e0f | Liu, Jinsong | } |
371 | 6c0d7ee8 | Andre Przywara | |
372 | ba9bc59e | Jan Kiszka | env->cpuid_ext2_features &= kvm_arch_get_supported_cpuid(s, 0x80000001,
|
373 | c958a8bd | Sheng Yang | 0, R_EDX);
|
374 | ba9bc59e | Jan Kiszka | env->cpuid_ext3_features &= kvm_arch_get_supported_cpuid(s, 0x80000001,
|
375 | c958a8bd | Sheng Yang | 0, R_ECX);
|
376 | ba9bc59e | Jan Kiszka | env->cpuid_svm_features &= kvm_arch_get_supported_cpuid(s, 0x8000000A,
|
377 | 296acb64 | Joerg Roedel | 0, R_EDX);
|
378 | 296acb64 | Joerg Roedel | |
379 | 05330448 | aliguori | cpuid_i = 0;
|
380 | 05330448 | aliguori | |
381 | bb0300dc | Gleb Natapov | /* Paravirtualization CPUIDs */
|
382 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
383 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
384 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_SIGNATURE; |
385 | eab70139 | Vadim Rozenfeld | if (!hyperv_enabled()) {
|
386 | eab70139 | Vadim Rozenfeld | memcpy(signature, "KVMKVMKVM\0\0\0", 12); |
387 | eab70139 | Vadim Rozenfeld | c->eax = 0;
|
388 | eab70139 | Vadim Rozenfeld | } else {
|
389 | eab70139 | Vadim Rozenfeld | memcpy(signature, "Microsoft Hv", 12); |
390 | eab70139 | Vadim Rozenfeld | c->eax = HYPERV_CPUID_MIN; |
391 | eab70139 | Vadim Rozenfeld | } |
392 | bb0300dc | Gleb Natapov | c->ebx = signature[0];
|
393 | bb0300dc | Gleb Natapov | c->ecx = signature[1];
|
394 | bb0300dc | Gleb Natapov | c->edx = signature[2];
|
395 | bb0300dc | Gleb Natapov | |
396 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
397 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
398 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_FEATURES; |
399 | ba9bc59e | Jan Kiszka | c->eax = env->cpuid_kvm_features & |
400 | ba9bc59e | Jan Kiszka | kvm_arch_get_supported_cpuid(s, KVM_CPUID_FEATURES, 0, R_EAX);
|
401 | 0c31b744 | Glauber Costa | |
402 | eab70139 | Vadim Rozenfeld | if (hyperv_enabled()) {
|
403 | eab70139 | Vadim Rozenfeld | memcpy(signature, "Hv#1\0\0\0\0\0\0\0\0", 12); |
404 | eab70139 | Vadim Rozenfeld | c->eax = signature[0];
|
405 | eab70139 | Vadim Rozenfeld | |
406 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
407 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
408 | eab70139 | Vadim Rozenfeld | c->function = HYPERV_CPUID_VERSION; |
409 | eab70139 | Vadim Rozenfeld | c->eax = 0x00001bbc;
|
410 | eab70139 | Vadim Rozenfeld | c->ebx = 0x00060001;
|
411 | eab70139 | Vadim Rozenfeld | |
412 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
413 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
414 | eab70139 | Vadim Rozenfeld | c->function = HYPERV_CPUID_FEATURES; |
415 | eab70139 | Vadim Rozenfeld | if (hyperv_relaxed_timing_enabled()) {
|
416 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE; |
417 | eab70139 | Vadim Rozenfeld | } |
418 | eab70139 | Vadim Rozenfeld | if (hyperv_vapic_recommended()) {
|
419 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE; |
420 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_MSR_APIC_ACCESS_AVAILABLE; |
421 | eab70139 | Vadim Rozenfeld | } |
422 | eab70139 | Vadim Rozenfeld | |
423 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
424 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
425 | eab70139 | Vadim Rozenfeld | c->function = HYPERV_CPUID_ENLIGHTMENT_INFO; |
426 | eab70139 | Vadim Rozenfeld | if (hyperv_relaxed_timing_enabled()) {
|
427 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_RELAXED_TIMING_RECOMMENDED; |
428 | eab70139 | Vadim Rozenfeld | } |
429 | eab70139 | Vadim Rozenfeld | if (hyperv_vapic_recommended()) {
|
430 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_APIC_ACCESS_RECOMMENDED; |
431 | eab70139 | Vadim Rozenfeld | } |
432 | eab70139 | Vadim Rozenfeld | c->ebx = hyperv_get_spinlock_retries(); |
433 | eab70139 | Vadim Rozenfeld | |
434 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
435 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
436 | eab70139 | Vadim Rozenfeld | c->function = HYPERV_CPUID_IMPLEMENT_LIMITS; |
437 | eab70139 | Vadim Rozenfeld | c->eax = 0x40;
|
438 | eab70139 | Vadim Rozenfeld | c->ebx = 0x40;
|
439 | eab70139 | Vadim Rozenfeld | |
440 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
441 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
442 | eab70139 | Vadim Rozenfeld | c->function = KVM_CPUID_SIGNATURE_NEXT; |
443 | eab70139 | Vadim Rozenfeld | memcpy(signature, "KVMKVMKVM\0\0\0", 12); |
444 | eab70139 | Vadim Rozenfeld | c->eax = 0;
|
445 | eab70139 | Vadim Rozenfeld | c->ebx = signature[0];
|
446 | eab70139 | Vadim Rozenfeld | c->ecx = signature[1];
|
447 | eab70139 | Vadim Rozenfeld | c->edx = signature[2];
|
448 | eab70139 | Vadim Rozenfeld | } |
449 | eab70139 | Vadim Rozenfeld | |
450 | 0c31b744 | Glauber Costa | has_msr_async_pf_en = c->eax & (1 << KVM_FEATURE_ASYNC_PF);
|
451 | 0c31b744 | Glauber Costa | |
452 | a33609ca | aliguori | cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); |
453 | 05330448 | aliguori | |
454 | 05330448 | aliguori | for (i = 0; i <= limit; i++) { |
455 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
456 | 486bd5a2 | aliguori | |
457 | 486bd5a2 | aliguori | switch (i) {
|
458 | a36b1029 | aliguori | case 2: { |
459 | a36b1029 | aliguori | /* Keep reading function 2 till all the input is received */
|
460 | a36b1029 | aliguori | int times;
|
461 | a36b1029 | aliguori | |
462 | a36b1029 | aliguori | c->function = i; |
463 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC | |
464 | a33609ca | aliguori | KVM_CPUID_FLAG_STATE_READ_NEXT; |
465 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
466 | a33609ca | aliguori | times = c->eax & 0xff;
|
467 | a36b1029 | aliguori | |
468 | a36b1029 | aliguori | for (j = 1; j < times; ++j) { |
469 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
470 | a36b1029 | aliguori | c->function = i; |
471 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC; |
472 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
473 | a36b1029 | aliguori | } |
474 | a36b1029 | aliguori | break;
|
475 | a36b1029 | aliguori | } |
476 | 486bd5a2 | aliguori | case 4: |
477 | 486bd5a2 | aliguori | case 0xb: |
478 | 486bd5a2 | aliguori | case 0xd: |
479 | 486bd5a2 | aliguori | for (j = 0; ; j++) { |
480 | 31e8c696 | Andre Przywara | if (i == 0xd && j == 64) { |
481 | 31e8c696 | Andre Przywara | break;
|
482 | 31e8c696 | Andre Przywara | } |
483 | 486bd5a2 | aliguori | c->function = i; |
484 | 486bd5a2 | aliguori | c->flags = KVM_CPUID_FLAG_SIGNIFCANT_INDEX; |
485 | 486bd5a2 | aliguori | c->index = j; |
486 | a33609ca | aliguori | cpu_x86_cpuid(env, i, j, &c->eax, &c->ebx, &c->ecx, &c->edx); |
487 | 486bd5a2 | aliguori | |
488 | b9bec74b | Jan Kiszka | if (i == 4 && c->eax == 0) { |
489 | 486bd5a2 | aliguori | break;
|
490 | b9bec74b | Jan Kiszka | } |
491 | b9bec74b | Jan Kiszka | if (i == 0xb && !(c->ecx & 0xff00)) { |
492 | 486bd5a2 | aliguori | break;
|
493 | b9bec74b | Jan Kiszka | } |
494 | b9bec74b | Jan Kiszka | if (i == 0xd && c->eax == 0) { |
495 | 31e8c696 | Andre Przywara | continue;
|
496 | b9bec74b | Jan Kiszka | } |
497 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
498 | 486bd5a2 | aliguori | } |
499 | 486bd5a2 | aliguori | break;
|
500 | 486bd5a2 | aliguori | default:
|
501 | 486bd5a2 | aliguori | c->function = i; |
502 | a33609ca | aliguori | c->flags = 0;
|
503 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
504 | 486bd5a2 | aliguori | break;
|
505 | 486bd5a2 | aliguori | } |
506 | 05330448 | aliguori | } |
507 | a33609ca | aliguori | cpu_x86_cpuid(env, 0x80000000, 0, &limit, &unused, &unused, &unused); |
508 | 05330448 | aliguori | |
509 | 05330448 | aliguori | for (i = 0x80000000; i <= limit; i++) { |
510 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
511 | 05330448 | aliguori | |
512 | 05330448 | aliguori | c->function = i; |
513 | a33609ca | aliguori | c->flags = 0;
|
514 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
515 | 05330448 | aliguori | } |
516 | 05330448 | aliguori | |
517 | b3baa152 | brillywu@viatech.com.cn | /* Call Centaur's CPUID instructions they are supported. */
|
518 | b3baa152 | brillywu@viatech.com.cn | if (env->cpuid_xlevel2 > 0) { |
519 | b3baa152 | brillywu@viatech.com.cn | env->cpuid_ext4_features &= |
520 | ba9bc59e | Jan Kiszka | kvm_arch_get_supported_cpuid(s, 0xC0000001, 0, R_EDX); |
521 | b3baa152 | brillywu@viatech.com.cn | cpu_x86_cpuid(env, 0xC0000000, 0, &limit, &unused, &unused, &unused); |
522 | b3baa152 | brillywu@viatech.com.cn | |
523 | b3baa152 | brillywu@viatech.com.cn | for (i = 0xC0000000; i <= limit; i++) { |
524 | b3baa152 | brillywu@viatech.com.cn | c = &cpuid_data.entries[cpuid_i++]; |
525 | b3baa152 | brillywu@viatech.com.cn | |
526 | b3baa152 | brillywu@viatech.com.cn | c->function = i; |
527 | b3baa152 | brillywu@viatech.com.cn | c->flags = 0;
|
528 | b3baa152 | brillywu@viatech.com.cn | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
529 | b3baa152 | brillywu@viatech.com.cn | } |
530 | b3baa152 | brillywu@viatech.com.cn | } |
531 | b3baa152 | brillywu@viatech.com.cn | |
532 | 05330448 | aliguori | cpuid_data.cpuid.nent = cpuid_i; |
533 | 05330448 | aliguori | |
534 | e7701825 | Marcelo Tosatti | if (((env->cpuid_version >> 8)&0xF) >= 6 |
535 | e7701825 | Marcelo Tosatti | && (env->cpuid_features&(CPUID_MCE|CPUID_MCA)) == (CPUID_MCE|CPUID_MCA) |
536 | e7701825 | Marcelo Tosatti | && kvm_check_extension(env->kvm_state, KVM_CAP_MCE) > 0) {
|
537 | e7701825 | Marcelo Tosatti | uint64_t mcg_cap; |
538 | e7701825 | Marcelo Tosatti | int banks;
|
539 | 32a42024 | Jan Kiszka | int ret;
|
540 | e7701825 | Marcelo Tosatti | |
541 | 75d49497 | Jan Kiszka | ret = kvm_get_mce_cap_supported(env->kvm_state, &mcg_cap, &banks); |
542 | 75d49497 | Jan Kiszka | if (ret < 0) { |
543 | 75d49497 | Jan Kiszka | fprintf(stderr, "kvm_get_mce_cap_supported: %s", strerror(-ret));
|
544 | 75d49497 | Jan Kiszka | return ret;
|
545 | e7701825 | Marcelo Tosatti | } |
546 | 75d49497 | Jan Kiszka | |
547 | 75d49497 | Jan Kiszka | if (banks > MCE_BANKS_DEF) {
|
548 | 75d49497 | Jan Kiszka | banks = MCE_BANKS_DEF; |
549 | 75d49497 | Jan Kiszka | } |
550 | 75d49497 | Jan Kiszka | mcg_cap &= MCE_CAP_DEF; |
551 | 75d49497 | Jan Kiszka | mcg_cap |= banks; |
552 | 75d49497 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_X86_SETUP_MCE, &mcg_cap); |
553 | 75d49497 | Jan Kiszka | if (ret < 0) { |
554 | 75d49497 | Jan Kiszka | fprintf(stderr, "KVM_X86_SETUP_MCE: %s", strerror(-ret));
|
555 | 75d49497 | Jan Kiszka | return ret;
|
556 | 75d49497 | Jan Kiszka | } |
557 | 75d49497 | Jan Kiszka | |
558 | 75d49497 | Jan Kiszka | env->mcg_cap = mcg_cap; |
559 | e7701825 | Marcelo Tosatti | } |
560 | e7701825 | Marcelo Tosatti | |
561 | b8cc45d6 | Glauber Costa | qemu_add_vm_change_state_handler(cpu_update_state, env); |
562 | b8cc45d6 | Glauber Costa | |
563 | 7e680753 | Michael S. Tsirkin | cpuid_data.cpuid.padding = 0;
|
564 | e7429073 | Joerg Roedel | r = kvm_vcpu_ioctl(env, KVM_SET_CPUID2, &cpuid_data); |
565 | fdc9c41a | Jan Kiszka | if (r) {
|
566 | fdc9c41a | Jan Kiszka | return r;
|
567 | fdc9c41a | Jan Kiszka | } |
568 | e7429073 | Joerg Roedel | |
569 | e7429073 | Joerg Roedel | r = kvm_check_extension(env->kvm_state, KVM_CAP_TSC_CONTROL); |
570 | e7429073 | Joerg Roedel | if (r && env->tsc_khz) {
|
571 | e7429073 | Joerg Roedel | r = kvm_vcpu_ioctl(env, KVM_SET_TSC_KHZ, env->tsc_khz); |
572 | e7429073 | Joerg Roedel | if (r < 0) { |
573 | e7429073 | Joerg Roedel | fprintf(stderr, "KVM_SET_TSC_KHZ failed\n");
|
574 | e7429073 | Joerg Roedel | return r;
|
575 | e7429073 | Joerg Roedel | } |
576 | e7429073 | Joerg Roedel | } |
577 | e7429073 | Joerg Roedel | |
578 | fabacc0f | Jan Kiszka | if (kvm_has_xsave()) {
|
579 | fabacc0f | Jan Kiszka | env->kvm_xsave_buf = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
580 | fabacc0f | Jan Kiszka | } |
581 | fabacc0f | Jan Kiszka | |
582 | e7429073 | Joerg Roedel | return 0; |
583 | 05330448 | aliguori | } |
584 | 05330448 | aliguori | |
585 | 317ac620 | Andreas Färber | void kvm_arch_reset_vcpu(CPUX86State *env)
|
586 | caa5af0f | Jan Kiszka | { |
587 | e73223a5 | Gleb Natapov | env->exception_injected = -1;
|
588 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
589 | 1a5e9d2f | Jan Kiszka | env->xcr0 = 1;
|
590 | ddced198 | Marcelo Tosatti | if (kvm_irqchip_in_kernel()) {
|
591 | ddced198 | Marcelo Tosatti | env->mp_state = cpu_is_bsp(env) ? KVM_MP_STATE_RUNNABLE : |
592 | ddced198 | Marcelo Tosatti | KVM_MP_STATE_UNINITIALIZED; |
593 | ddced198 | Marcelo Tosatti | } else {
|
594 | ddced198 | Marcelo Tosatti | env->mp_state = KVM_MP_STATE_RUNNABLE; |
595 | ddced198 | Marcelo Tosatti | } |
596 | caa5af0f | Jan Kiszka | } |
597 | caa5af0f | Jan Kiszka | |
598 | c3a3a7d3 | Jan Kiszka | static int kvm_get_supported_msrs(KVMState *s) |
599 | 05330448 | aliguori | { |
600 | 75b10c43 | Marcelo Tosatti | static int kvm_supported_msrs; |
601 | c3a3a7d3 | Jan Kiszka | int ret = 0; |
602 | 05330448 | aliguori | |
603 | 05330448 | aliguori | /* first time */
|
604 | 75b10c43 | Marcelo Tosatti | if (kvm_supported_msrs == 0) { |
605 | 05330448 | aliguori | struct kvm_msr_list msr_list, *kvm_msr_list;
|
606 | 05330448 | aliguori | |
607 | 75b10c43 | Marcelo Tosatti | kvm_supported_msrs = -1;
|
608 | 05330448 | aliguori | |
609 | 05330448 | aliguori | /* Obtain MSR list from KVM. These are the MSRs that we must
|
610 | 05330448 | aliguori | * save/restore */
|
611 | 4c9f7372 | aliguori | msr_list.nmsrs = 0;
|
612 | c3a3a7d3 | Jan Kiszka | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, &msr_list); |
613 | 6fb6d245 | Jan Kiszka | if (ret < 0 && ret != -E2BIG) { |
614 | c3a3a7d3 | Jan Kiszka | return ret;
|
615 | 6fb6d245 | Jan Kiszka | } |
616 | d9db889f | Jan Kiszka | /* Old kernel modules had a bug and could write beyond the provided
|
617 | d9db889f | Jan Kiszka | memory. Allocate at least a safe amount of 1K. */
|
618 | 7267c094 | Anthony Liguori | kvm_msr_list = g_malloc0(MAX(1024, sizeof(msr_list) + |
619 | d9db889f | Jan Kiszka | msr_list.nmsrs * |
620 | d9db889f | Jan Kiszka | sizeof(msr_list.indices[0]))); |
621 | 05330448 | aliguori | |
622 | 55308450 | aliguori | kvm_msr_list->nmsrs = msr_list.nmsrs; |
623 | c3a3a7d3 | Jan Kiszka | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, kvm_msr_list); |
624 | 05330448 | aliguori | if (ret >= 0) { |
625 | 05330448 | aliguori | int i;
|
626 | 05330448 | aliguori | |
627 | 05330448 | aliguori | for (i = 0; i < kvm_msr_list->nmsrs; i++) { |
628 | 05330448 | aliguori | if (kvm_msr_list->indices[i] == MSR_STAR) {
|
629 | c3a3a7d3 | Jan Kiszka | has_msr_star = true;
|
630 | 75b10c43 | Marcelo Tosatti | continue;
|
631 | 75b10c43 | Marcelo Tosatti | } |
632 | 75b10c43 | Marcelo Tosatti | if (kvm_msr_list->indices[i] == MSR_VM_HSAVE_PA) {
|
633 | c3a3a7d3 | Jan Kiszka | has_msr_hsave_pa = true;
|
634 | 75b10c43 | Marcelo Tosatti | continue;
|
635 | 05330448 | aliguori | } |
636 | aa82ba54 | Liu, Jinsong | if (kvm_msr_list->indices[i] == MSR_IA32_TSCDEADLINE) {
|
637 | aa82ba54 | Liu, Jinsong | has_msr_tsc_deadline = true;
|
638 | aa82ba54 | Liu, Jinsong | continue;
|
639 | aa82ba54 | Liu, Jinsong | } |
640 | 21e87c46 | Avi Kivity | if (kvm_msr_list->indices[i] == MSR_IA32_MISC_ENABLE) {
|
641 | 21e87c46 | Avi Kivity | has_msr_misc_enable = true;
|
642 | 21e87c46 | Avi Kivity | continue;
|
643 | 21e87c46 | Avi Kivity | } |
644 | 05330448 | aliguori | } |
645 | 05330448 | aliguori | } |
646 | 05330448 | aliguori | |
647 | 7267c094 | Anthony Liguori | g_free(kvm_msr_list); |
648 | 05330448 | aliguori | } |
649 | 05330448 | aliguori | |
650 | c3a3a7d3 | Jan Kiszka | return ret;
|
651 | 05330448 | aliguori | } |
652 | 05330448 | aliguori | |
653 | cad1e282 | Jan Kiszka | int kvm_arch_init(KVMState *s)
|
654 | 20420430 | Sheng Yang | { |
655 | 39d6960a | Jan Kiszka | QemuOptsList *list = qemu_find_opts("machine");
|
656 | 11076198 | Jan Kiszka | uint64_t identity_base = 0xfffbc000;
|
657 | 39d6960a | Jan Kiszka | uint64_t shadow_mem; |
658 | 20420430 | Sheng Yang | int ret;
|
659 | 25d2e361 | Marcelo Tosatti | struct utsname utsname;
|
660 | 20420430 | Sheng Yang | |
661 | c3a3a7d3 | Jan Kiszka | ret = kvm_get_supported_msrs(s); |
662 | 20420430 | Sheng Yang | if (ret < 0) { |
663 | 20420430 | Sheng Yang | return ret;
|
664 | 20420430 | Sheng Yang | } |
665 | 25d2e361 | Marcelo Tosatti | |
666 | 25d2e361 | Marcelo Tosatti | uname(&utsname); |
667 | 25d2e361 | Marcelo Tosatti | lm_capable_kernel = strcmp(utsname.machine, "x86_64") == 0; |
668 | 25d2e361 | Marcelo Tosatti | |
669 | 4c5b10b7 | Jes Sorensen | /*
|
670 | 11076198 | Jan Kiszka | * On older Intel CPUs, KVM uses vm86 mode to emulate 16-bit code directly.
|
671 | 11076198 | Jan Kiszka | * In order to use vm86 mode, an EPT identity map and a TSS are needed.
|
672 | 11076198 | Jan Kiszka | * Since these must be part of guest physical memory, we need to allocate
|
673 | 11076198 | Jan Kiszka | * them, both by setting their start addresses in the kernel and by
|
674 | 11076198 | Jan Kiszka | * creating a corresponding e820 entry. We need 4 pages before the BIOS.
|
675 | 11076198 | Jan Kiszka | *
|
676 | 11076198 | Jan Kiszka | * Older KVM versions may not support setting the identity map base. In
|
677 | 11076198 | Jan Kiszka | * that case we need to stick with the default, i.e. a 256K maximum BIOS
|
678 | 11076198 | Jan Kiszka | * size.
|
679 | 4c5b10b7 | Jes Sorensen | */
|
680 | 11076198 | Jan Kiszka | if (kvm_check_extension(s, KVM_CAP_SET_IDENTITY_MAP_ADDR)) {
|
681 | 11076198 | Jan Kiszka | /* Allows up to 16M BIOSes. */
|
682 | 11076198 | Jan Kiszka | identity_base = 0xfeffc000;
|
683 | 11076198 | Jan Kiszka | |
684 | 11076198 | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_SET_IDENTITY_MAP_ADDR, &identity_base); |
685 | 11076198 | Jan Kiszka | if (ret < 0) { |
686 | 11076198 | Jan Kiszka | return ret;
|
687 | 11076198 | Jan Kiszka | } |
688 | 4c5b10b7 | Jes Sorensen | } |
689 | e56ff191 | Jan Kiszka | |
690 | 11076198 | Jan Kiszka | /* Set TSS base one page after EPT identity map. */
|
691 | 11076198 | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_SET_TSS_ADDR, identity_base + 0x1000);
|
692 | 20420430 | Sheng Yang | if (ret < 0) { |
693 | 20420430 | Sheng Yang | return ret;
|
694 | 20420430 | Sheng Yang | } |
695 | 20420430 | Sheng Yang | |
696 | 11076198 | Jan Kiszka | /* Tell fw_cfg to notify the BIOS to reserve the range. */
|
697 | 11076198 | Jan Kiszka | ret = e820_add_entry(identity_base, 0x4000, E820_RESERVED);
|
698 | 20420430 | Sheng Yang | if (ret < 0) { |
699 | 11076198 | Jan Kiszka | fprintf(stderr, "e820_add_entry() table is full\n");
|
700 | 20420430 | Sheng Yang | return ret;
|
701 | 20420430 | Sheng Yang | } |
702 | 3c85e74f | Huang Ying | qemu_register_reset(kvm_unpoison_all, NULL);
|
703 | 20420430 | Sheng Yang | |
704 | 39d6960a | Jan Kiszka | if (!QTAILQ_EMPTY(&list->head)) {
|
705 | 39d6960a | Jan Kiszka | shadow_mem = qemu_opt_get_size(QTAILQ_FIRST(&list->head), |
706 | 39d6960a | Jan Kiszka | "kvm_shadow_mem", -1); |
707 | 39d6960a | Jan Kiszka | if (shadow_mem != -1) { |
708 | 39d6960a | Jan Kiszka | shadow_mem /= 4096;
|
709 | 39d6960a | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_SET_NR_MMU_PAGES, shadow_mem); |
710 | 39d6960a | Jan Kiszka | if (ret < 0) { |
711 | 39d6960a | Jan Kiszka | return ret;
|
712 | 39d6960a | Jan Kiszka | } |
713 | 39d6960a | Jan Kiszka | } |
714 | 39d6960a | Jan Kiszka | } |
715 | 11076198 | Jan Kiszka | return 0; |
716 | 05330448 | aliguori | } |
717 | b9bec74b | Jan Kiszka | |
718 | 05330448 | aliguori | static void set_v8086_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
719 | 05330448 | aliguori | { |
720 | 05330448 | aliguori | lhs->selector = rhs->selector; |
721 | 05330448 | aliguori | lhs->base = rhs->base; |
722 | 05330448 | aliguori | lhs->limit = rhs->limit; |
723 | 05330448 | aliguori | lhs->type = 3;
|
724 | 05330448 | aliguori | lhs->present = 1;
|
725 | 05330448 | aliguori | lhs->dpl = 3;
|
726 | 05330448 | aliguori | lhs->db = 0;
|
727 | 05330448 | aliguori | lhs->s = 1;
|
728 | 05330448 | aliguori | lhs->l = 0;
|
729 | 05330448 | aliguori | lhs->g = 0;
|
730 | 05330448 | aliguori | lhs->avl = 0;
|
731 | 05330448 | aliguori | lhs->unusable = 0;
|
732 | 05330448 | aliguori | } |
733 | 05330448 | aliguori | |
734 | 05330448 | aliguori | static void set_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
735 | 05330448 | aliguori | { |
736 | 05330448 | aliguori | unsigned flags = rhs->flags;
|
737 | 05330448 | aliguori | lhs->selector = rhs->selector; |
738 | 05330448 | aliguori | lhs->base = rhs->base; |
739 | 05330448 | aliguori | lhs->limit = rhs->limit; |
740 | 05330448 | aliguori | lhs->type = (flags >> DESC_TYPE_SHIFT) & 15;
|
741 | 05330448 | aliguori | lhs->present = (flags & DESC_P_MASK) != 0;
|
742 | acaa7550 | Jan Kiszka | lhs->dpl = (flags >> DESC_DPL_SHIFT) & 3;
|
743 | 05330448 | aliguori | lhs->db = (flags >> DESC_B_SHIFT) & 1;
|
744 | 05330448 | aliguori | lhs->s = (flags & DESC_S_MASK) != 0;
|
745 | 05330448 | aliguori | lhs->l = (flags >> DESC_L_SHIFT) & 1;
|
746 | 05330448 | aliguori | lhs->g = (flags & DESC_G_MASK) != 0;
|
747 | 05330448 | aliguori | lhs->avl = (flags & DESC_AVL_MASK) != 0;
|
748 | 05330448 | aliguori | lhs->unusable = 0;
|
749 | 7e680753 | Michael S. Tsirkin | lhs->padding = 0;
|
750 | 05330448 | aliguori | } |
751 | 05330448 | aliguori | |
752 | 05330448 | aliguori | static void get_seg(SegmentCache *lhs, const struct kvm_segment *rhs) |
753 | 05330448 | aliguori | { |
754 | 05330448 | aliguori | lhs->selector = rhs->selector; |
755 | 05330448 | aliguori | lhs->base = rhs->base; |
756 | 05330448 | aliguori | lhs->limit = rhs->limit; |
757 | b9bec74b | Jan Kiszka | lhs->flags = (rhs->type << DESC_TYPE_SHIFT) | |
758 | b9bec74b | Jan Kiszka | (rhs->present * DESC_P_MASK) | |
759 | b9bec74b | Jan Kiszka | (rhs->dpl << DESC_DPL_SHIFT) | |
760 | b9bec74b | Jan Kiszka | (rhs->db << DESC_B_SHIFT) | |
761 | b9bec74b | Jan Kiszka | (rhs->s * DESC_S_MASK) | |
762 | b9bec74b | Jan Kiszka | (rhs->l << DESC_L_SHIFT) | |
763 | b9bec74b | Jan Kiszka | (rhs->g * DESC_G_MASK) | |
764 | b9bec74b | Jan Kiszka | (rhs->avl * DESC_AVL_MASK); |
765 | 05330448 | aliguori | } |
766 | 05330448 | aliguori | |
767 | 05330448 | aliguori | static void kvm_getput_reg(__u64 *kvm_reg, target_ulong *qemu_reg, int set) |
768 | 05330448 | aliguori | { |
769 | b9bec74b | Jan Kiszka | if (set) {
|
770 | 05330448 | aliguori | *kvm_reg = *qemu_reg; |
771 | b9bec74b | Jan Kiszka | } else {
|
772 | 05330448 | aliguori | *qemu_reg = *kvm_reg; |
773 | b9bec74b | Jan Kiszka | } |
774 | 05330448 | aliguori | } |
775 | 05330448 | aliguori | |
776 | 317ac620 | Andreas Färber | static int kvm_getput_regs(CPUX86State *env, int set) |
777 | 05330448 | aliguori | { |
778 | 05330448 | aliguori | struct kvm_regs regs;
|
779 | 05330448 | aliguori | int ret = 0; |
780 | 05330448 | aliguori | |
781 | 05330448 | aliguori | if (!set) {
|
782 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_REGS, ®s); |
783 | b9bec74b | Jan Kiszka | if (ret < 0) { |
784 | 05330448 | aliguori | return ret;
|
785 | b9bec74b | Jan Kiszka | } |
786 | 05330448 | aliguori | } |
787 | 05330448 | aliguori | |
788 | 05330448 | aliguori | kvm_getput_reg(®s.rax, &env->regs[R_EAX], set); |
789 | 05330448 | aliguori | kvm_getput_reg(®s.rbx, &env->regs[R_EBX], set); |
790 | 05330448 | aliguori | kvm_getput_reg(®s.rcx, &env->regs[R_ECX], set); |
791 | 05330448 | aliguori | kvm_getput_reg(®s.rdx, &env->regs[R_EDX], set); |
792 | 05330448 | aliguori | kvm_getput_reg(®s.rsi, &env->regs[R_ESI], set); |
793 | 05330448 | aliguori | kvm_getput_reg(®s.rdi, &env->regs[R_EDI], set); |
794 | 05330448 | aliguori | kvm_getput_reg(®s.rsp, &env->regs[R_ESP], set); |
795 | 05330448 | aliguori | kvm_getput_reg(®s.rbp, &env->regs[R_EBP], set); |
796 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
797 | 05330448 | aliguori | kvm_getput_reg(®s.r8, &env->regs[8], set);
|
798 | 05330448 | aliguori | kvm_getput_reg(®s.r9, &env->regs[9], set);
|
799 | 05330448 | aliguori | kvm_getput_reg(®s.r10, &env->regs[10], set);
|
800 | 05330448 | aliguori | kvm_getput_reg(®s.r11, &env->regs[11], set);
|
801 | 05330448 | aliguori | kvm_getput_reg(®s.r12, &env->regs[12], set);
|
802 | 05330448 | aliguori | kvm_getput_reg(®s.r13, &env->regs[13], set);
|
803 | 05330448 | aliguori | kvm_getput_reg(®s.r14, &env->regs[14], set);
|
804 | 05330448 | aliguori | kvm_getput_reg(®s.r15, &env->regs[15], set);
|
805 | 05330448 | aliguori | #endif
|
806 | 05330448 | aliguori | |
807 | 05330448 | aliguori | kvm_getput_reg(®s.rflags, &env->eflags, set); |
808 | 05330448 | aliguori | kvm_getput_reg(®s.rip, &env->eip, set); |
809 | 05330448 | aliguori | |
810 | b9bec74b | Jan Kiszka | if (set) {
|
811 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_SET_REGS, ®s); |
812 | b9bec74b | Jan Kiszka | } |
813 | 05330448 | aliguori | |
814 | 05330448 | aliguori | return ret;
|
815 | 05330448 | aliguori | } |
816 | 05330448 | aliguori | |
817 | 317ac620 | Andreas Färber | static int kvm_put_fpu(CPUX86State *env) |
818 | 05330448 | aliguori | { |
819 | 05330448 | aliguori | struct kvm_fpu fpu;
|
820 | 05330448 | aliguori | int i;
|
821 | 05330448 | aliguori | |
822 | 05330448 | aliguori | memset(&fpu, 0, sizeof fpu); |
823 | 05330448 | aliguori | fpu.fsw = env->fpus & ~(7 << 11); |
824 | 05330448 | aliguori | fpu.fsw |= (env->fpstt & 7) << 11; |
825 | 05330448 | aliguori | fpu.fcw = env->fpuc; |
826 | 42cc8fa6 | Jan Kiszka | fpu.last_opcode = env->fpop; |
827 | 42cc8fa6 | Jan Kiszka | fpu.last_ip = env->fpip; |
828 | 42cc8fa6 | Jan Kiszka | fpu.last_dp = env->fpdp; |
829 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
830 | b9bec74b | Jan Kiszka | fpu.ftwx |= (!env->fptags[i]) << i; |
831 | b9bec74b | Jan Kiszka | } |
832 | 05330448 | aliguori | memcpy(fpu.fpr, env->fpregs, sizeof env->fpregs);
|
833 | 05330448 | aliguori | memcpy(fpu.xmm, env->xmm_regs, sizeof env->xmm_regs);
|
834 | 05330448 | aliguori | fpu.mxcsr = env->mxcsr; |
835 | 05330448 | aliguori | |
836 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_FPU, &fpu);
|
837 | 05330448 | aliguori | } |
838 | 05330448 | aliguori | |
839 | 6b42494b | Jan Kiszka | #define XSAVE_FCW_FSW 0 |
840 | 6b42494b | Jan Kiszka | #define XSAVE_FTW_FOP 1 |
841 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RIP 2 |
842 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RDP 4 |
843 | f1665b21 | Sheng Yang | #define XSAVE_MXCSR 6 |
844 | f1665b21 | Sheng Yang | #define XSAVE_ST_SPACE 8 |
845 | f1665b21 | Sheng Yang | #define XSAVE_XMM_SPACE 40 |
846 | f1665b21 | Sheng Yang | #define XSAVE_XSTATE_BV 128 |
847 | f1665b21 | Sheng Yang | #define XSAVE_YMMH_SPACE 144 |
848 | f1665b21 | Sheng Yang | |
849 | 317ac620 | Andreas Färber | static int kvm_put_xsave(CPUX86State *env) |
850 | f1665b21 | Sheng Yang | { |
851 | fabacc0f | Jan Kiszka | struct kvm_xsave* xsave = env->kvm_xsave_buf;
|
852 | 42cc8fa6 | Jan Kiszka | uint16_t cwd, swd, twd; |
853 | fabacc0f | Jan Kiszka | int i, r;
|
854 | f1665b21 | Sheng Yang | |
855 | b9bec74b | Jan Kiszka | if (!kvm_has_xsave()) {
|
856 | f1665b21 | Sheng Yang | return kvm_put_fpu(env);
|
857 | b9bec74b | Jan Kiszka | } |
858 | f1665b21 | Sheng Yang | |
859 | f1665b21 | Sheng Yang | memset(xsave, 0, sizeof(struct kvm_xsave)); |
860 | 6115c0a8 | Blue Swirl | twd = 0;
|
861 | f1665b21 | Sheng Yang | swd = env->fpus & ~(7 << 11); |
862 | f1665b21 | Sheng Yang | swd |= (env->fpstt & 7) << 11; |
863 | f1665b21 | Sheng Yang | cwd = env->fpuc; |
864 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
865 | f1665b21 | Sheng Yang | twd |= (!env->fptags[i]) << i; |
866 | b9bec74b | Jan Kiszka | } |
867 | 6b42494b | Jan Kiszka | xsave->region[XSAVE_FCW_FSW] = (uint32_t)(swd << 16) + cwd;
|
868 | 6b42494b | Jan Kiszka | xsave->region[XSAVE_FTW_FOP] = (uint32_t)(env->fpop << 16) + twd;
|
869 | 42cc8fa6 | Jan Kiszka | memcpy(&xsave->region[XSAVE_CWD_RIP], &env->fpip, sizeof(env->fpip));
|
870 | 42cc8fa6 | Jan Kiszka | memcpy(&xsave->region[XSAVE_CWD_RDP], &env->fpdp, sizeof(env->fpdp));
|
871 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs, |
872 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
873 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_XMM_SPACE], env->xmm_regs, |
874 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
875 | f1665b21 | Sheng Yang | xsave->region[XSAVE_MXCSR] = env->mxcsr; |
876 | f1665b21 | Sheng Yang | *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV] = env->xstate_bv; |
877 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_YMMH_SPACE], env->ymmh_regs, |
878 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
879 | 0f53994f | Marcelo Tosatti | r = kvm_vcpu_ioctl(env, KVM_SET_XSAVE, xsave); |
880 | 0f53994f | Marcelo Tosatti | return r;
|
881 | f1665b21 | Sheng Yang | } |
882 | f1665b21 | Sheng Yang | |
883 | 317ac620 | Andreas Färber | static int kvm_put_xcrs(CPUX86State *env) |
884 | f1665b21 | Sheng Yang | { |
885 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
886 | f1665b21 | Sheng Yang | |
887 | b9bec74b | Jan Kiszka | if (!kvm_has_xcrs()) {
|
888 | f1665b21 | Sheng Yang | return 0; |
889 | b9bec74b | Jan Kiszka | } |
890 | f1665b21 | Sheng Yang | |
891 | f1665b21 | Sheng Yang | xcrs.nr_xcrs = 1;
|
892 | f1665b21 | Sheng Yang | xcrs.flags = 0;
|
893 | f1665b21 | Sheng Yang | xcrs.xcrs[0].xcr = 0; |
894 | f1665b21 | Sheng Yang | xcrs.xcrs[0].value = env->xcr0;
|
895 | f1665b21 | Sheng Yang | return kvm_vcpu_ioctl(env, KVM_SET_XCRS, &xcrs);
|
896 | f1665b21 | Sheng Yang | } |
897 | f1665b21 | Sheng Yang | |
898 | 317ac620 | Andreas Färber | static int kvm_put_sregs(CPUX86State *env) |
899 | 05330448 | aliguori | { |
900 | 05330448 | aliguori | struct kvm_sregs sregs;
|
901 | 05330448 | aliguori | |
902 | 0e607a80 | Jan Kiszka | memset(sregs.interrupt_bitmap, 0, sizeof(sregs.interrupt_bitmap)); |
903 | 0e607a80 | Jan Kiszka | if (env->interrupt_injected >= 0) { |
904 | 0e607a80 | Jan Kiszka | sregs.interrupt_bitmap[env->interrupt_injected / 64] |=
|
905 | 0e607a80 | Jan Kiszka | (uint64_t)1 << (env->interrupt_injected % 64); |
906 | 0e607a80 | Jan Kiszka | } |
907 | 05330448 | aliguori | |
908 | 05330448 | aliguori | if ((env->eflags & VM_MASK)) {
|
909 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.cs, &env->segs[R_CS]); |
910 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.ds, &env->segs[R_DS]); |
911 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.es, &env->segs[R_ES]); |
912 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.fs, &env->segs[R_FS]); |
913 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.gs, &env->segs[R_GS]); |
914 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.ss, &env->segs[R_SS]); |
915 | 05330448 | aliguori | } else {
|
916 | b9bec74b | Jan Kiszka | set_seg(&sregs.cs, &env->segs[R_CS]); |
917 | b9bec74b | Jan Kiszka | set_seg(&sregs.ds, &env->segs[R_DS]); |
918 | b9bec74b | Jan Kiszka | set_seg(&sregs.es, &env->segs[R_ES]); |
919 | b9bec74b | Jan Kiszka | set_seg(&sregs.fs, &env->segs[R_FS]); |
920 | b9bec74b | Jan Kiszka | set_seg(&sregs.gs, &env->segs[R_GS]); |
921 | b9bec74b | Jan Kiszka | set_seg(&sregs.ss, &env->segs[R_SS]); |
922 | 05330448 | aliguori | } |
923 | 05330448 | aliguori | |
924 | 05330448 | aliguori | set_seg(&sregs.tr, &env->tr); |
925 | 05330448 | aliguori | set_seg(&sregs.ldt, &env->ldt); |
926 | 05330448 | aliguori | |
927 | 05330448 | aliguori | sregs.idt.limit = env->idt.limit; |
928 | 05330448 | aliguori | sregs.idt.base = env->idt.base; |
929 | 7e680753 | Michael S. Tsirkin | memset(sregs.idt.padding, 0, sizeof sregs.idt.padding); |
930 | 05330448 | aliguori | sregs.gdt.limit = env->gdt.limit; |
931 | 05330448 | aliguori | sregs.gdt.base = env->gdt.base; |
932 | 7e680753 | Michael S. Tsirkin | memset(sregs.gdt.padding, 0, sizeof sregs.gdt.padding); |
933 | 05330448 | aliguori | |
934 | 05330448 | aliguori | sregs.cr0 = env->cr[0];
|
935 | 05330448 | aliguori | sregs.cr2 = env->cr[2];
|
936 | 05330448 | aliguori | sregs.cr3 = env->cr[3];
|
937 | 05330448 | aliguori | sregs.cr4 = env->cr[4];
|
938 | 05330448 | aliguori | |
939 | 4a942cea | Blue Swirl | sregs.cr8 = cpu_get_apic_tpr(env->apic_state); |
940 | 4a942cea | Blue Swirl | sregs.apic_base = cpu_get_apic_base(env->apic_state); |
941 | 05330448 | aliguori | |
942 | 05330448 | aliguori | sregs.efer = env->efer; |
943 | 05330448 | aliguori | |
944 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_SREGS, &sregs);
|
945 | 05330448 | aliguori | } |
946 | 05330448 | aliguori | |
947 | 05330448 | aliguori | static void kvm_msr_entry_set(struct kvm_msr_entry *entry, |
948 | 05330448 | aliguori | uint32_t index, uint64_t value) |
949 | 05330448 | aliguori | { |
950 | 05330448 | aliguori | entry->index = index; |
951 | 05330448 | aliguori | entry->data = value; |
952 | 05330448 | aliguori | } |
953 | 05330448 | aliguori | |
954 | 317ac620 | Andreas Färber | static int kvm_put_msrs(CPUX86State *env, int level) |
955 | 05330448 | aliguori | { |
956 | 05330448 | aliguori | struct {
|
957 | 05330448 | aliguori | struct kvm_msrs info;
|
958 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
959 | 05330448 | aliguori | } msr_data; |
960 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
961 | d8da8574 | Hidetoshi Seto | int n = 0; |
962 | 05330448 | aliguori | |
963 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_CS, env->sysenter_cs); |
964 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_ESP, env->sysenter_esp); |
965 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_EIP, env->sysenter_eip); |
966 | 0c03266a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_PAT, env->pat); |
967 | c3a3a7d3 | Jan Kiszka | if (has_msr_star) {
|
968 | b9bec74b | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_STAR, env->star); |
969 | b9bec74b | Jan Kiszka | } |
970 | c3a3a7d3 | Jan Kiszka | if (has_msr_hsave_pa) {
|
971 | 75b10c43 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_VM_HSAVE_PA, env->vm_hsave); |
972 | b9bec74b | Jan Kiszka | } |
973 | aa82ba54 | Liu, Jinsong | if (has_msr_tsc_deadline) {
|
974 | aa82ba54 | Liu, Jinsong | kvm_msr_entry_set(&msrs[n++], MSR_IA32_TSCDEADLINE, env->tsc_deadline); |
975 | aa82ba54 | Liu, Jinsong | } |
976 | 21e87c46 | Avi Kivity | if (has_msr_misc_enable) {
|
977 | 21e87c46 | Avi Kivity | kvm_msr_entry_set(&msrs[n++], MSR_IA32_MISC_ENABLE, |
978 | 21e87c46 | Avi Kivity | env->msr_ia32_misc_enable); |
979 | 21e87c46 | Avi Kivity | } |
980 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
981 | 25d2e361 | Marcelo Tosatti | if (lm_capable_kernel) {
|
982 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_CSTAR, env->cstar); |
983 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_KERNELGSBASE, env->kernelgsbase); |
984 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_FMASK, env->fmask); |
985 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_LSTAR, env->lstar); |
986 | 25d2e361 | Marcelo Tosatti | } |
987 | 05330448 | aliguori | #endif
|
988 | ea643051 | Jan Kiszka | if (level == KVM_PUT_FULL_STATE) {
|
989 | 384331a6 | Marcelo Tosatti | /*
|
990 | 384331a6 | Marcelo Tosatti | * KVM is yet unable to synchronize TSC values of multiple VCPUs on
|
991 | 384331a6 | Marcelo Tosatti | * writeback. Until this is fixed, we only write the offset to SMP
|
992 | 384331a6 | Marcelo Tosatti | * guests after migration, desynchronizing the VCPUs, but avoiding
|
993 | 384331a6 | Marcelo Tosatti | * huge jump-backs that would occur without any writeback at all.
|
994 | 384331a6 | Marcelo Tosatti | */
|
995 | 384331a6 | Marcelo Tosatti | if (smp_cpus == 1 || env->tsc != 0) { |
996 | 384331a6 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_IA32_TSC, env->tsc); |
997 | 384331a6 | Marcelo Tosatti | } |
998 | ff5c186b | Jan Kiszka | } |
999 | ff5c186b | Jan Kiszka | /*
|
1000 | ff5c186b | Jan Kiszka | * The following paravirtual MSRs have side effects on the guest or are
|
1001 | ff5c186b | Jan Kiszka | * too heavy for normal writeback. Limit them to reset or full state
|
1002 | ff5c186b | Jan Kiszka | * updates.
|
1003 | ff5c186b | Jan Kiszka | */
|
1004 | ff5c186b | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1005 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_SYSTEM_TIME, |
1006 | ea643051 | Jan Kiszka | env->system_time_msr); |
1007 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_WALL_CLOCK, env->wall_clock_msr); |
1008 | c5999bfc | Jan Kiszka | if (has_msr_async_pf_en) {
|
1009 | c5999bfc | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_ASYNC_PF_EN, |
1010 | c5999bfc | Jan Kiszka | env->async_pf_en_msr); |
1011 | c5999bfc | Jan Kiszka | } |
1012 | eab70139 | Vadim Rozenfeld | if (hyperv_hypercall_available()) {
|
1013 | eab70139 | Vadim Rozenfeld | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID, 0);
|
1014 | eab70139 | Vadim Rozenfeld | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL, 0);
|
1015 | eab70139 | Vadim Rozenfeld | } |
1016 | eab70139 | Vadim Rozenfeld | if (hyperv_vapic_recommended()) {
|
1017 | eab70139 | Vadim Rozenfeld | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_APIC_ASSIST_PAGE, 0);
|
1018 | eab70139 | Vadim Rozenfeld | } |
1019 | ea643051 | Jan Kiszka | } |
1020 | 57780495 | Marcelo Tosatti | if (env->mcg_cap) {
|
1021 | d8da8574 | Hidetoshi Seto | int i;
|
1022 | b9bec74b | Jan Kiszka | |
1023 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MCG_STATUS, env->mcg_status); |
1024 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MCG_CTL, env->mcg_ctl); |
1025 | c34d440a | Jan Kiszka | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
1026 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MC0_CTL + i, env->mce_banks[i]); |
1027 | 57780495 | Marcelo Tosatti | } |
1028 | 57780495 | Marcelo Tosatti | } |
1029 | 1a03675d | Glauber Costa | |
1030 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
1031 | 05330448 | aliguori | |
1032 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_MSRS, &msr_data);
|
1033 | 05330448 | aliguori | |
1034 | 05330448 | aliguori | } |
1035 | 05330448 | aliguori | |
1036 | 05330448 | aliguori | |
1037 | 317ac620 | Andreas Färber | static int kvm_get_fpu(CPUX86State *env) |
1038 | 05330448 | aliguori | { |
1039 | 05330448 | aliguori | struct kvm_fpu fpu;
|
1040 | 05330448 | aliguori | int i, ret;
|
1041 | 05330448 | aliguori | |
1042 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_FPU, &fpu); |
1043 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1044 | 05330448 | aliguori | return ret;
|
1045 | b9bec74b | Jan Kiszka | } |
1046 | 05330448 | aliguori | |
1047 | 05330448 | aliguori | env->fpstt = (fpu.fsw >> 11) & 7; |
1048 | 05330448 | aliguori | env->fpus = fpu.fsw; |
1049 | 05330448 | aliguori | env->fpuc = fpu.fcw; |
1050 | 42cc8fa6 | Jan Kiszka | env->fpop = fpu.last_opcode; |
1051 | 42cc8fa6 | Jan Kiszka | env->fpip = fpu.last_ip; |
1052 | 42cc8fa6 | Jan Kiszka | env->fpdp = fpu.last_dp; |
1053 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
1054 | b9bec74b | Jan Kiszka | env->fptags[i] = !((fpu.ftwx >> i) & 1);
|
1055 | b9bec74b | Jan Kiszka | } |
1056 | 05330448 | aliguori | memcpy(env->fpregs, fpu.fpr, sizeof env->fpregs);
|
1057 | 05330448 | aliguori | memcpy(env->xmm_regs, fpu.xmm, sizeof env->xmm_regs);
|
1058 | 05330448 | aliguori | env->mxcsr = fpu.mxcsr; |
1059 | 05330448 | aliguori | |
1060 | 05330448 | aliguori | return 0; |
1061 | 05330448 | aliguori | } |
1062 | 05330448 | aliguori | |
1063 | 317ac620 | Andreas Färber | static int kvm_get_xsave(CPUX86State *env) |
1064 | f1665b21 | Sheng Yang | { |
1065 | fabacc0f | Jan Kiszka | struct kvm_xsave* xsave = env->kvm_xsave_buf;
|
1066 | f1665b21 | Sheng Yang | int ret, i;
|
1067 | 42cc8fa6 | Jan Kiszka | uint16_t cwd, swd, twd; |
1068 | f1665b21 | Sheng Yang | |
1069 | b9bec74b | Jan Kiszka | if (!kvm_has_xsave()) {
|
1070 | f1665b21 | Sheng Yang | return kvm_get_fpu(env);
|
1071 | b9bec74b | Jan Kiszka | } |
1072 | f1665b21 | Sheng Yang | |
1073 | f1665b21 | Sheng Yang | ret = kvm_vcpu_ioctl(env, KVM_GET_XSAVE, xsave); |
1074 | 0f53994f | Marcelo Tosatti | if (ret < 0) { |
1075 | f1665b21 | Sheng Yang | return ret;
|
1076 | 0f53994f | Marcelo Tosatti | } |
1077 | f1665b21 | Sheng Yang | |
1078 | 6b42494b | Jan Kiszka | cwd = (uint16_t)xsave->region[XSAVE_FCW_FSW]; |
1079 | 6b42494b | Jan Kiszka | swd = (uint16_t)(xsave->region[XSAVE_FCW_FSW] >> 16);
|
1080 | 6b42494b | Jan Kiszka | twd = (uint16_t)xsave->region[XSAVE_FTW_FOP]; |
1081 | 6b42494b | Jan Kiszka | env->fpop = (uint16_t)(xsave->region[XSAVE_FTW_FOP] >> 16);
|
1082 | f1665b21 | Sheng Yang | env->fpstt = (swd >> 11) & 7; |
1083 | f1665b21 | Sheng Yang | env->fpus = swd; |
1084 | f1665b21 | Sheng Yang | env->fpuc = cwd; |
1085 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
1086 | f1665b21 | Sheng Yang | env->fptags[i] = !((twd >> i) & 1);
|
1087 | b9bec74b | Jan Kiszka | } |
1088 | 42cc8fa6 | Jan Kiszka | memcpy(&env->fpip, &xsave->region[XSAVE_CWD_RIP], sizeof(env->fpip));
|
1089 | 42cc8fa6 | Jan Kiszka | memcpy(&env->fpdp, &xsave->region[XSAVE_CWD_RDP], sizeof(env->fpdp));
|
1090 | f1665b21 | Sheng Yang | env->mxcsr = xsave->region[XSAVE_MXCSR]; |
1091 | f1665b21 | Sheng Yang | memcpy(env->fpregs, &xsave->region[XSAVE_ST_SPACE], |
1092 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
1093 | f1665b21 | Sheng Yang | memcpy(env->xmm_regs, &xsave->region[XSAVE_XMM_SPACE], |
1094 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
1095 | f1665b21 | Sheng Yang | env->xstate_bv = *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV]; |
1096 | f1665b21 | Sheng Yang | memcpy(env->ymmh_regs, &xsave->region[XSAVE_YMMH_SPACE], |
1097 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
1098 | f1665b21 | Sheng Yang | return 0; |
1099 | f1665b21 | Sheng Yang | } |
1100 | f1665b21 | Sheng Yang | |
1101 | 317ac620 | Andreas Färber | static int kvm_get_xcrs(CPUX86State *env) |
1102 | f1665b21 | Sheng Yang | { |
1103 | f1665b21 | Sheng Yang | int i, ret;
|
1104 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
1105 | f1665b21 | Sheng Yang | |
1106 | b9bec74b | Jan Kiszka | if (!kvm_has_xcrs()) {
|
1107 | f1665b21 | Sheng Yang | return 0; |
1108 | b9bec74b | Jan Kiszka | } |
1109 | f1665b21 | Sheng Yang | |
1110 | f1665b21 | Sheng Yang | ret = kvm_vcpu_ioctl(env, KVM_GET_XCRS, &xcrs); |
1111 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1112 | f1665b21 | Sheng Yang | return ret;
|
1113 | b9bec74b | Jan Kiszka | } |
1114 | f1665b21 | Sheng Yang | |
1115 | b9bec74b | Jan Kiszka | for (i = 0; i < xcrs.nr_xcrs; i++) { |
1116 | f1665b21 | Sheng Yang | /* Only support xcr0 now */
|
1117 | f1665b21 | Sheng Yang | if (xcrs.xcrs[0].xcr == 0) { |
1118 | f1665b21 | Sheng Yang | env->xcr0 = xcrs.xcrs[0].value;
|
1119 | f1665b21 | Sheng Yang | break;
|
1120 | f1665b21 | Sheng Yang | } |
1121 | b9bec74b | Jan Kiszka | } |
1122 | f1665b21 | Sheng Yang | return 0; |
1123 | f1665b21 | Sheng Yang | } |
1124 | f1665b21 | Sheng Yang | |
1125 | 317ac620 | Andreas Färber | static int kvm_get_sregs(CPUX86State *env) |
1126 | 05330448 | aliguori | { |
1127 | 05330448 | aliguori | struct kvm_sregs sregs;
|
1128 | 05330448 | aliguori | uint32_t hflags; |
1129 | 0e607a80 | Jan Kiszka | int bit, i, ret;
|
1130 | 05330448 | aliguori | |
1131 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_SREGS, &sregs); |
1132 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1133 | 05330448 | aliguori | return ret;
|
1134 | b9bec74b | Jan Kiszka | } |
1135 | 05330448 | aliguori | |
1136 | 0e607a80 | Jan Kiszka | /* There can only be one pending IRQ set in the bitmap at a time, so try
|
1137 | 0e607a80 | Jan Kiszka | to find it and save its number instead (-1 for none). */
|
1138 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
1139 | 0e607a80 | Jan Kiszka | for (i = 0; i < ARRAY_SIZE(sregs.interrupt_bitmap); i++) { |
1140 | 0e607a80 | Jan Kiszka | if (sregs.interrupt_bitmap[i]) {
|
1141 | 0e607a80 | Jan Kiszka | bit = ctz64(sregs.interrupt_bitmap[i]); |
1142 | 0e607a80 | Jan Kiszka | env->interrupt_injected = i * 64 + bit;
|
1143 | 0e607a80 | Jan Kiszka | break;
|
1144 | 0e607a80 | Jan Kiszka | } |
1145 | 0e607a80 | Jan Kiszka | } |
1146 | 05330448 | aliguori | |
1147 | 05330448 | aliguori | get_seg(&env->segs[R_CS], &sregs.cs); |
1148 | 05330448 | aliguori | get_seg(&env->segs[R_DS], &sregs.ds); |
1149 | 05330448 | aliguori | get_seg(&env->segs[R_ES], &sregs.es); |
1150 | 05330448 | aliguori | get_seg(&env->segs[R_FS], &sregs.fs); |
1151 | 05330448 | aliguori | get_seg(&env->segs[R_GS], &sregs.gs); |
1152 | 05330448 | aliguori | get_seg(&env->segs[R_SS], &sregs.ss); |
1153 | 05330448 | aliguori | |
1154 | 05330448 | aliguori | get_seg(&env->tr, &sregs.tr); |
1155 | 05330448 | aliguori | get_seg(&env->ldt, &sregs.ldt); |
1156 | 05330448 | aliguori | |
1157 | 05330448 | aliguori | env->idt.limit = sregs.idt.limit; |
1158 | 05330448 | aliguori | env->idt.base = sregs.idt.base; |
1159 | 05330448 | aliguori | env->gdt.limit = sregs.gdt.limit; |
1160 | 05330448 | aliguori | env->gdt.base = sregs.gdt.base; |
1161 | 05330448 | aliguori | |
1162 | 05330448 | aliguori | env->cr[0] = sregs.cr0;
|
1163 | 05330448 | aliguori | env->cr[2] = sregs.cr2;
|
1164 | 05330448 | aliguori | env->cr[3] = sregs.cr3;
|
1165 | 05330448 | aliguori | env->cr[4] = sregs.cr4;
|
1166 | 05330448 | aliguori | |
1167 | 05330448 | aliguori | env->efer = sregs.efer; |
1168 | cce47516 | Jan Kiszka | |
1169 | cce47516 | Jan Kiszka | /* changes to apic base and cr8/tpr are read back via kvm_arch_post_run */
|
1170 | 05330448 | aliguori | |
1171 | b9bec74b | Jan Kiszka | #define HFLAG_COPY_MASK \
|
1172 | b9bec74b | Jan Kiszka | ~( HF_CPL_MASK | HF_PE_MASK | HF_MP_MASK | HF_EM_MASK | \ |
1173 | b9bec74b | Jan Kiszka | HF_TS_MASK | HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK | \ |
1174 | b9bec74b | Jan Kiszka | HF_OSFXSR_MASK | HF_LMA_MASK | HF_CS32_MASK | \ |
1175 | b9bec74b | Jan Kiszka | HF_SS32_MASK | HF_CS64_MASK | HF_ADDSEG_MASK) |
1176 | 05330448 | aliguori | |
1177 | 05330448 | aliguori | hflags = (env->segs[R_CS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK; |
1178 | 05330448 | aliguori | hflags |= (env->cr[0] & CR0_PE_MASK) << (HF_PE_SHIFT - CR0_PE_SHIFT);
|
1179 | 05330448 | aliguori | hflags |= (env->cr[0] << (HF_MP_SHIFT - CR0_MP_SHIFT)) &
|
1180 | b9bec74b | Jan Kiszka | (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK); |
1181 | 05330448 | aliguori | hflags |= (env->eflags & (HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK)); |
1182 | 05330448 | aliguori | hflags |= (env->cr[4] & CR4_OSFXSR_MASK) <<
|
1183 | b9bec74b | Jan Kiszka | (HF_OSFXSR_SHIFT - CR4_OSFXSR_SHIFT); |
1184 | 05330448 | aliguori | |
1185 | 05330448 | aliguori | if (env->efer & MSR_EFER_LMA) {
|
1186 | 05330448 | aliguori | hflags |= HF_LMA_MASK; |
1187 | 05330448 | aliguori | } |
1188 | 05330448 | aliguori | |
1189 | 05330448 | aliguori | if ((hflags & HF_LMA_MASK) && (env->segs[R_CS].flags & DESC_L_MASK)) {
|
1190 | 05330448 | aliguori | hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK; |
1191 | 05330448 | aliguori | } else {
|
1192 | 05330448 | aliguori | hflags |= (env->segs[R_CS].flags & DESC_B_MASK) >> |
1193 | b9bec74b | Jan Kiszka | (DESC_B_SHIFT - HF_CS32_SHIFT); |
1194 | 05330448 | aliguori | hflags |= (env->segs[R_SS].flags & DESC_B_MASK) >> |
1195 | b9bec74b | Jan Kiszka | (DESC_B_SHIFT - HF_SS32_SHIFT); |
1196 | b9bec74b | Jan Kiszka | if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK) || |
1197 | b9bec74b | Jan Kiszka | !(hflags & HF_CS32_MASK)) { |
1198 | b9bec74b | Jan Kiszka | hflags |= HF_ADDSEG_MASK; |
1199 | b9bec74b | Jan Kiszka | } else {
|
1200 | b9bec74b | Jan Kiszka | hflags |= ((env->segs[R_DS].base | env->segs[R_ES].base | |
1201 | b9bec74b | Jan Kiszka | env->segs[R_SS].base) != 0) << HF_ADDSEG_SHIFT;
|
1202 | b9bec74b | Jan Kiszka | } |
1203 | 05330448 | aliguori | } |
1204 | 05330448 | aliguori | env->hflags = (env->hflags & HFLAG_COPY_MASK) | hflags; |
1205 | 05330448 | aliguori | |
1206 | 05330448 | aliguori | return 0; |
1207 | 05330448 | aliguori | } |
1208 | 05330448 | aliguori | |
1209 | 317ac620 | Andreas Färber | static int kvm_get_msrs(CPUX86State *env) |
1210 | 05330448 | aliguori | { |
1211 | 05330448 | aliguori | struct {
|
1212 | 05330448 | aliguori | struct kvm_msrs info;
|
1213 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
1214 | 05330448 | aliguori | } msr_data; |
1215 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
1216 | 05330448 | aliguori | int ret, i, n;
|
1217 | 05330448 | aliguori | |
1218 | 05330448 | aliguori | n = 0;
|
1219 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_CS; |
1220 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_ESP; |
1221 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_EIP; |
1222 | 0c03266a | Jan Kiszka | msrs[n++].index = MSR_PAT; |
1223 | c3a3a7d3 | Jan Kiszka | if (has_msr_star) {
|
1224 | b9bec74b | Jan Kiszka | msrs[n++].index = MSR_STAR; |
1225 | b9bec74b | Jan Kiszka | } |
1226 | c3a3a7d3 | Jan Kiszka | if (has_msr_hsave_pa) {
|
1227 | 75b10c43 | Marcelo Tosatti | msrs[n++].index = MSR_VM_HSAVE_PA; |
1228 | b9bec74b | Jan Kiszka | } |
1229 | aa82ba54 | Liu, Jinsong | if (has_msr_tsc_deadline) {
|
1230 | aa82ba54 | Liu, Jinsong | msrs[n++].index = MSR_IA32_TSCDEADLINE; |
1231 | aa82ba54 | Liu, Jinsong | } |
1232 | 21e87c46 | Avi Kivity | if (has_msr_misc_enable) {
|
1233 | 21e87c46 | Avi Kivity | msrs[n++].index = MSR_IA32_MISC_ENABLE; |
1234 | 21e87c46 | Avi Kivity | } |
1235 | b8cc45d6 | Glauber Costa | |
1236 | b8cc45d6 | Glauber Costa | if (!env->tsc_valid) {
|
1237 | b8cc45d6 | Glauber Costa | msrs[n++].index = MSR_IA32_TSC; |
1238 | 1354869c | Luiz Capitulino | env->tsc_valid = !runstate_is_running(); |
1239 | b8cc45d6 | Glauber Costa | } |
1240 | b8cc45d6 | Glauber Costa | |
1241 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
1242 | 25d2e361 | Marcelo Tosatti | if (lm_capable_kernel) {
|
1243 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_CSTAR; |
1244 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_KERNELGSBASE; |
1245 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_FMASK; |
1246 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_LSTAR; |
1247 | 25d2e361 | Marcelo Tosatti | } |
1248 | 05330448 | aliguori | #endif
|
1249 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_SYSTEM_TIME; |
1250 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_WALL_CLOCK; |
1251 | c5999bfc | Jan Kiszka | if (has_msr_async_pf_en) {
|
1252 | c5999bfc | Jan Kiszka | msrs[n++].index = MSR_KVM_ASYNC_PF_EN; |
1253 | c5999bfc | Jan Kiszka | } |
1254 | 1a03675d | Glauber Costa | |
1255 | 57780495 | Marcelo Tosatti | if (env->mcg_cap) {
|
1256 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MCG_STATUS; |
1257 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MCG_CTL; |
1258 | b9bec74b | Jan Kiszka | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
1259 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MC0_CTL + i; |
1260 | b9bec74b | Jan Kiszka | } |
1261 | 57780495 | Marcelo Tosatti | } |
1262 | 57780495 | Marcelo Tosatti | |
1263 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
1264 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_MSRS, &msr_data); |
1265 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1266 | 05330448 | aliguori | return ret;
|
1267 | b9bec74b | Jan Kiszka | } |
1268 | 05330448 | aliguori | |
1269 | 05330448 | aliguori | for (i = 0; i < ret; i++) { |
1270 | 05330448 | aliguori | switch (msrs[i].index) {
|
1271 | 05330448 | aliguori | case MSR_IA32_SYSENTER_CS:
|
1272 | 05330448 | aliguori | env->sysenter_cs = msrs[i].data; |
1273 | 05330448 | aliguori | break;
|
1274 | 05330448 | aliguori | case MSR_IA32_SYSENTER_ESP:
|
1275 | 05330448 | aliguori | env->sysenter_esp = msrs[i].data; |
1276 | 05330448 | aliguori | break;
|
1277 | 05330448 | aliguori | case MSR_IA32_SYSENTER_EIP:
|
1278 | 05330448 | aliguori | env->sysenter_eip = msrs[i].data; |
1279 | 05330448 | aliguori | break;
|
1280 | 0c03266a | Jan Kiszka | case MSR_PAT:
|
1281 | 0c03266a | Jan Kiszka | env->pat = msrs[i].data; |
1282 | 0c03266a | Jan Kiszka | break;
|
1283 | 05330448 | aliguori | case MSR_STAR:
|
1284 | 05330448 | aliguori | env->star = msrs[i].data; |
1285 | 05330448 | aliguori | break;
|
1286 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
1287 | 05330448 | aliguori | case MSR_CSTAR:
|
1288 | 05330448 | aliguori | env->cstar = msrs[i].data; |
1289 | 05330448 | aliguori | break;
|
1290 | 05330448 | aliguori | case MSR_KERNELGSBASE:
|
1291 | 05330448 | aliguori | env->kernelgsbase = msrs[i].data; |
1292 | 05330448 | aliguori | break;
|
1293 | 05330448 | aliguori | case MSR_FMASK:
|
1294 | 05330448 | aliguori | env->fmask = msrs[i].data; |
1295 | 05330448 | aliguori | break;
|
1296 | 05330448 | aliguori | case MSR_LSTAR:
|
1297 | 05330448 | aliguori | env->lstar = msrs[i].data; |
1298 | 05330448 | aliguori | break;
|
1299 | 05330448 | aliguori | #endif
|
1300 | 05330448 | aliguori | case MSR_IA32_TSC:
|
1301 | 05330448 | aliguori | env->tsc = msrs[i].data; |
1302 | 05330448 | aliguori | break;
|
1303 | aa82ba54 | Liu, Jinsong | case MSR_IA32_TSCDEADLINE:
|
1304 | aa82ba54 | Liu, Jinsong | env->tsc_deadline = msrs[i].data; |
1305 | aa82ba54 | Liu, Jinsong | break;
|
1306 | aa851e36 | Marcelo Tosatti | case MSR_VM_HSAVE_PA:
|
1307 | aa851e36 | Marcelo Tosatti | env->vm_hsave = msrs[i].data; |
1308 | aa851e36 | Marcelo Tosatti | break;
|
1309 | 1a03675d | Glauber Costa | case MSR_KVM_SYSTEM_TIME:
|
1310 | 1a03675d | Glauber Costa | env->system_time_msr = msrs[i].data; |
1311 | 1a03675d | Glauber Costa | break;
|
1312 | 1a03675d | Glauber Costa | case MSR_KVM_WALL_CLOCK:
|
1313 | 1a03675d | Glauber Costa | env->wall_clock_msr = msrs[i].data; |
1314 | 1a03675d | Glauber Costa | break;
|
1315 | 57780495 | Marcelo Tosatti | case MSR_MCG_STATUS:
|
1316 | 57780495 | Marcelo Tosatti | env->mcg_status = msrs[i].data; |
1317 | 57780495 | Marcelo Tosatti | break;
|
1318 | 57780495 | Marcelo Tosatti | case MSR_MCG_CTL:
|
1319 | 57780495 | Marcelo Tosatti | env->mcg_ctl = msrs[i].data; |
1320 | 57780495 | Marcelo Tosatti | break;
|
1321 | 21e87c46 | Avi Kivity | case MSR_IA32_MISC_ENABLE:
|
1322 | 21e87c46 | Avi Kivity | env->msr_ia32_misc_enable = msrs[i].data; |
1323 | 21e87c46 | Avi Kivity | break;
|
1324 | 57780495 | Marcelo Tosatti | default:
|
1325 | 57780495 | Marcelo Tosatti | if (msrs[i].index >= MSR_MC0_CTL &&
|
1326 | 57780495 | Marcelo Tosatti | msrs[i].index < MSR_MC0_CTL + (env->mcg_cap & 0xff) * 4) { |
1327 | 57780495 | Marcelo Tosatti | env->mce_banks[msrs[i].index - MSR_MC0_CTL] = msrs[i].data; |
1328 | 57780495 | Marcelo Tosatti | } |
1329 | d8da8574 | Hidetoshi Seto | break;
|
1330 | f6584ee2 | Gleb Natapov | case MSR_KVM_ASYNC_PF_EN:
|
1331 | f6584ee2 | Gleb Natapov | env->async_pf_en_msr = msrs[i].data; |
1332 | f6584ee2 | Gleb Natapov | break;
|
1333 | 05330448 | aliguori | } |
1334 | 05330448 | aliguori | } |
1335 | 05330448 | aliguori | |
1336 | 05330448 | aliguori | return 0; |
1337 | 05330448 | aliguori | } |
1338 | 05330448 | aliguori | |
1339 | 317ac620 | Andreas Färber | static int kvm_put_mp_state(CPUX86State *env) |
1340 | 9bdbe550 | Hollis Blanchard | { |
1341 | 9bdbe550 | Hollis Blanchard | struct kvm_mp_state mp_state = { .mp_state = env->mp_state };
|
1342 | 9bdbe550 | Hollis Blanchard | |
1343 | 9bdbe550 | Hollis Blanchard | return kvm_vcpu_ioctl(env, KVM_SET_MP_STATE, &mp_state);
|
1344 | 9bdbe550 | Hollis Blanchard | } |
1345 | 9bdbe550 | Hollis Blanchard | |
1346 | 317ac620 | Andreas Färber | static int kvm_get_mp_state(CPUX86State *env) |
1347 | 9bdbe550 | Hollis Blanchard | { |
1348 | 9bdbe550 | Hollis Blanchard | struct kvm_mp_state mp_state;
|
1349 | 9bdbe550 | Hollis Blanchard | int ret;
|
1350 | 9bdbe550 | Hollis Blanchard | |
1351 | 9bdbe550 | Hollis Blanchard | ret = kvm_vcpu_ioctl(env, KVM_GET_MP_STATE, &mp_state); |
1352 | 9bdbe550 | Hollis Blanchard | if (ret < 0) { |
1353 | 9bdbe550 | Hollis Blanchard | return ret;
|
1354 | 9bdbe550 | Hollis Blanchard | } |
1355 | 9bdbe550 | Hollis Blanchard | env->mp_state = mp_state.mp_state; |
1356 | c14750e8 | Jan Kiszka | if (kvm_irqchip_in_kernel()) {
|
1357 | c14750e8 | Jan Kiszka | env->halted = (mp_state.mp_state == KVM_MP_STATE_HALTED); |
1358 | c14750e8 | Jan Kiszka | } |
1359 | 9bdbe550 | Hollis Blanchard | return 0; |
1360 | 9bdbe550 | Hollis Blanchard | } |
1361 | 9bdbe550 | Hollis Blanchard | |
1362 | 317ac620 | Andreas Färber | static int kvm_get_apic(CPUX86State *env) |
1363 | 680c1c6f | Jan Kiszka | { |
1364 | 680c1c6f | Jan Kiszka | DeviceState *apic = env->apic_state; |
1365 | 680c1c6f | Jan Kiszka | struct kvm_lapic_state kapic;
|
1366 | 680c1c6f | Jan Kiszka | int ret;
|
1367 | 680c1c6f | Jan Kiszka | |
1368 | 3d4b2649 | Jan Kiszka | if (apic && kvm_irqchip_in_kernel()) {
|
1369 | 680c1c6f | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_GET_LAPIC, &kapic); |
1370 | 680c1c6f | Jan Kiszka | if (ret < 0) { |
1371 | 680c1c6f | Jan Kiszka | return ret;
|
1372 | 680c1c6f | Jan Kiszka | } |
1373 | 680c1c6f | Jan Kiszka | |
1374 | 680c1c6f | Jan Kiszka | kvm_get_apic_state(apic, &kapic); |
1375 | 680c1c6f | Jan Kiszka | } |
1376 | 680c1c6f | Jan Kiszka | return 0; |
1377 | 680c1c6f | Jan Kiszka | } |
1378 | 680c1c6f | Jan Kiszka | |
1379 | 317ac620 | Andreas Färber | static int kvm_put_apic(CPUX86State *env) |
1380 | 680c1c6f | Jan Kiszka | { |
1381 | 680c1c6f | Jan Kiszka | DeviceState *apic = env->apic_state; |
1382 | 680c1c6f | Jan Kiszka | struct kvm_lapic_state kapic;
|
1383 | 680c1c6f | Jan Kiszka | |
1384 | 3d4b2649 | Jan Kiszka | if (apic && kvm_irqchip_in_kernel()) {
|
1385 | 680c1c6f | Jan Kiszka | kvm_put_apic_state(apic, &kapic); |
1386 | 680c1c6f | Jan Kiszka | |
1387 | 680c1c6f | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_SET_LAPIC, &kapic);
|
1388 | 680c1c6f | Jan Kiszka | } |
1389 | 680c1c6f | Jan Kiszka | return 0; |
1390 | 680c1c6f | Jan Kiszka | } |
1391 | 680c1c6f | Jan Kiszka | |
1392 | 317ac620 | Andreas Färber | static int kvm_put_vcpu_events(CPUX86State *env, int level) |
1393 | a0fb002c | Jan Kiszka | { |
1394 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1395 | a0fb002c | Jan Kiszka | |
1396 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1397 | a0fb002c | Jan Kiszka | return 0; |
1398 | a0fb002c | Jan Kiszka | } |
1399 | a0fb002c | Jan Kiszka | |
1400 | 31827373 | Jan Kiszka | events.exception.injected = (env->exception_injected >= 0);
|
1401 | 31827373 | Jan Kiszka | events.exception.nr = env->exception_injected; |
1402 | a0fb002c | Jan Kiszka | events.exception.has_error_code = env->has_error_code; |
1403 | a0fb002c | Jan Kiszka | events.exception.error_code = env->error_code; |
1404 | 7e680753 | Michael S. Tsirkin | events.exception.pad = 0;
|
1405 | a0fb002c | Jan Kiszka | |
1406 | a0fb002c | Jan Kiszka | events.interrupt.injected = (env->interrupt_injected >= 0);
|
1407 | a0fb002c | Jan Kiszka | events.interrupt.nr = env->interrupt_injected; |
1408 | a0fb002c | Jan Kiszka | events.interrupt.soft = env->soft_interrupt; |
1409 | a0fb002c | Jan Kiszka | |
1410 | a0fb002c | Jan Kiszka | events.nmi.injected = env->nmi_injected; |
1411 | a0fb002c | Jan Kiszka | events.nmi.pending = env->nmi_pending; |
1412 | a0fb002c | Jan Kiszka | events.nmi.masked = !!(env->hflags2 & HF2_NMI_MASK); |
1413 | 7e680753 | Michael S. Tsirkin | events.nmi.pad = 0;
|
1414 | a0fb002c | Jan Kiszka | |
1415 | a0fb002c | Jan Kiszka | events.sipi_vector = env->sipi_vector; |
1416 | a0fb002c | Jan Kiszka | |
1417 | ea643051 | Jan Kiszka | events.flags = 0;
|
1418 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1419 | ea643051 | Jan Kiszka | events.flags |= |
1420 | ea643051 | Jan Kiszka | KVM_VCPUEVENT_VALID_NMI_PENDING | KVM_VCPUEVENT_VALID_SIPI_VECTOR; |
1421 | ea643051 | Jan Kiszka | } |
1422 | aee028b9 | Jan Kiszka | |
1423 | a0fb002c | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_SET_VCPU_EVENTS, &events);
|
1424 | a0fb002c | Jan Kiszka | } |
1425 | a0fb002c | Jan Kiszka | |
1426 | 317ac620 | Andreas Färber | static int kvm_get_vcpu_events(CPUX86State *env) |
1427 | a0fb002c | Jan Kiszka | { |
1428 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1429 | a0fb002c | Jan Kiszka | int ret;
|
1430 | a0fb002c | Jan Kiszka | |
1431 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1432 | a0fb002c | Jan Kiszka | return 0; |
1433 | a0fb002c | Jan Kiszka | } |
1434 | a0fb002c | Jan Kiszka | |
1435 | a0fb002c | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_GET_VCPU_EVENTS, &events); |
1436 | a0fb002c | Jan Kiszka | if (ret < 0) { |
1437 | a0fb002c | Jan Kiszka | return ret;
|
1438 | a0fb002c | Jan Kiszka | } |
1439 | 31827373 | Jan Kiszka | env->exception_injected = |
1440 | a0fb002c | Jan Kiszka | events.exception.injected ? events.exception.nr : -1;
|
1441 | a0fb002c | Jan Kiszka | env->has_error_code = events.exception.has_error_code; |
1442 | a0fb002c | Jan Kiszka | env->error_code = events.exception.error_code; |
1443 | a0fb002c | Jan Kiszka | |
1444 | a0fb002c | Jan Kiszka | env->interrupt_injected = |
1445 | a0fb002c | Jan Kiszka | events.interrupt.injected ? events.interrupt.nr : -1;
|
1446 | a0fb002c | Jan Kiszka | env->soft_interrupt = events.interrupt.soft; |
1447 | a0fb002c | Jan Kiszka | |
1448 | a0fb002c | Jan Kiszka | env->nmi_injected = events.nmi.injected; |
1449 | a0fb002c | Jan Kiszka | env->nmi_pending = events.nmi.pending; |
1450 | a0fb002c | Jan Kiszka | if (events.nmi.masked) {
|
1451 | a0fb002c | Jan Kiszka | env->hflags2 |= HF2_NMI_MASK; |
1452 | a0fb002c | Jan Kiszka | } else {
|
1453 | a0fb002c | Jan Kiszka | env->hflags2 &= ~HF2_NMI_MASK; |
1454 | a0fb002c | Jan Kiszka | } |
1455 | a0fb002c | Jan Kiszka | |
1456 | a0fb002c | Jan Kiszka | env->sipi_vector = events.sipi_vector; |
1457 | a0fb002c | Jan Kiszka | |
1458 | a0fb002c | Jan Kiszka | return 0; |
1459 | a0fb002c | Jan Kiszka | } |
1460 | a0fb002c | Jan Kiszka | |
1461 | 317ac620 | Andreas Färber | static int kvm_guest_debug_workarounds(CPUX86State *env) |
1462 | b0b1d690 | Jan Kiszka | { |
1463 | b0b1d690 | Jan Kiszka | int ret = 0; |
1464 | b0b1d690 | Jan Kiszka | unsigned long reinject_trap = 0; |
1465 | b0b1d690 | Jan Kiszka | |
1466 | b0b1d690 | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1467 | b0b1d690 | Jan Kiszka | if (env->exception_injected == 1) { |
1468 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_DB; |
1469 | b0b1d690 | Jan Kiszka | } else if (env->exception_injected == 3) { |
1470 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_BP; |
1471 | b0b1d690 | Jan Kiszka | } |
1472 | b0b1d690 | Jan Kiszka | env->exception_injected = -1;
|
1473 | b0b1d690 | Jan Kiszka | } |
1474 | b0b1d690 | Jan Kiszka | |
1475 | b0b1d690 | Jan Kiszka | /*
|
1476 | b0b1d690 | Jan Kiszka | * Kernels before KVM_CAP_X86_ROBUST_SINGLESTEP overwrote flags.TF
|
1477 | b0b1d690 | Jan Kiszka | * injected via SET_GUEST_DEBUG while updating GP regs. Work around this
|
1478 | b0b1d690 | Jan Kiszka | * by updating the debug state once again if single-stepping is on.
|
1479 | b0b1d690 | Jan Kiszka | * Another reason to call kvm_update_guest_debug here is a pending debug
|
1480 | b0b1d690 | Jan Kiszka | * trap raise by the guest. On kernels without SET_VCPU_EVENTS we have to
|
1481 | b0b1d690 | Jan Kiszka | * reinject them via SET_GUEST_DEBUG.
|
1482 | b0b1d690 | Jan Kiszka | */
|
1483 | b0b1d690 | Jan Kiszka | if (reinject_trap ||
|
1484 | b0b1d690 | Jan Kiszka | (!kvm_has_robust_singlestep() && env->singlestep_enabled)) { |
1485 | b0b1d690 | Jan Kiszka | ret = kvm_update_guest_debug(env, reinject_trap); |
1486 | b0b1d690 | Jan Kiszka | } |
1487 | b0b1d690 | Jan Kiszka | return ret;
|
1488 | b0b1d690 | Jan Kiszka | } |
1489 | b0b1d690 | Jan Kiszka | |
1490 | 317ac620 | Andreas Färber | static int kvm_put_debugregs(CPUX86State *env) |
1491 | ff44f1a3 | Jan Kiszka | { |
1492 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1493 | ff44f1a3 | Jan Kiszka | int i;
|
1494 | ff44f1a3 | Jan Kiszka | |
1495 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1496 | ff44f1a3 | Jan Kiszka | return 0; |
1497 | ff44f1a3 | Jan Kiszka | } |
1498 | ff44f1a3 | Jan Kiszka | |
1499 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1500 | ff44f1a3 | Jan Kiszka | dbgregs.db[i] = env->dr[i]; |
1501 | ff44f1a3 | Jan Kiszka | } |
1502 | ff44f1a3 | Jan Kiszka | dbgregs.dr6 = env->dr[6];
|
1503 | ff44f1a3 | Jan Kiszka | dbgregs.dr7 = env->dr[7];
|
1504 | ff44f1a3 | Jan Kiszka | dbgregs.flags = 0;
|
1505 | ff44f1a3 | Jan Kiszka | |
1506 | ff44f1a3 | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_SET_DEBUGREGS, &dbgregs);
|
1507 | ff44f1a3 | Jan Kiszka | } |
1508 | ff44f1a3 | Jan Kiszka | |
1509 | 317ac620 | Andreas Färber | static int kvm_get_debugregs(CPUX86State *env) |
1510 | ff44f1a3 | Jan Kiszka | { |
1511 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1512 | ff44f1a3 | Jan Kiszka | int i, ret;
|
1513 | ff44f1a3 | Jan Kiszka | |
1514 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1515 | ff44f1a3 | Jan Kiszka | return 0; |
1516 | ff44f1a3 | Jan Kiszka | } |
1517 | ff44f1a3 | Jan Kiszka | |
1518 | ff44f1a3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_GET_DEBUGREGS, &dbgregs); |
1519 | ff44f1a3 | Jan Kiszka | if (ret < 0) { |
1520 | b9bec74b | Jan Kiszka | return ret;
|
1521 | ff44f1a3 | Jan Kiszka | } |
1522 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1523 | ff44f1a3 | Jan Kiszka | env->dr[i] = dbgregs.db[i]; |
1524 | ff44f1a3 | Jan Kiszka | } |
1525 | ff44f1a3 | Jan Kiszka | env->dr[4] = env->dr[6] = dbgregs.dr6; |
1526 | ff44f1a3 | Jan Kiszka | env->dr[5] = env->dr[7] = dbgregs.dr7; |
1527 | ff44f1a3 | Jan Kiszka | |
1528 | ff44f1a3 | Jan Kiszka | return 0; |
1529 | ff44f1a3 | Jan Kiszka | } |
1530 | ff44f1a3 | Jan Kiszka | |
1531 | 317ac620 | Andreas Färber | int kvm_arch_put_registers(CPUX86State *env, int level) |
1532 | 05330448 | aliguori | { |
1533 | 05330448 | aliguori | int ret;
|
1534 | 05330448 | aliguori | |
1535 | b7680cb6 | Jan Kiszka | assert(cpu_is_stopped(env) || qemu_cpu_is_self(env)); |
1536 | dbaa07c4 | Jan Kiszka | |
1537 | 05330448 | aliguori | ret = kvm_getput_regs(env, 1);
|
1538 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1539 | 05330448 | aliguori | return ret;
|
1540 | b9bec74b | Jan Kiszka | } |
1541 | f1665b21 | Sheng Yang | ret = kvm_put_xsave(env); |
1542 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1543 | f1665b21 | Sheng Yang | return ret;
|
1544 | b9bec74b | Jan Kiszka | } |
1545 | f1665b21 | Sheng Yang | ret = kvm_put_xcrs(env); |
1546 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1547 | 05330448 | aliguori | return ret;
|
1548 | b9bec74b | Jan Kiszka | } |
1549 | 05330448 | aliguori | ret = kvm_put_sregs(env); |
1550 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1551 | 05330448 | aliguori | return ret;
|
1552 | b9bec74b | Jan Kiszka | } |
1553 | ab443475 | Jan Kiszka | /* must be before kvm_put_msrs */
|
1554 | ab443475 | Jan Kiszka | ret = kvm_inject_mce_oldstyle(env); |
1555 | ab443475 | Jan Kiszka | if (ret < 0) { |
1556 | ab443475 | Jan Kiszka | return ret;
|
1557 | ab443475 | Jan Kiszka | } |
1558 | ea643051 | Jan Kiszka | ret = kvm_put_msrs(env, level); |
1559 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1560 | 05330448 | aliguori | return ret;
|
1561 | b9bec74b | Jan Kiszka | } |
1562 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1563 | ea643051 | Jan Kiszka | ret = kvm_put_mp_state(env); |
1564 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1565 | ea643051 | Jan Kiszka | return ret;
|
1566 | b9bec74b | Jan Kiszka | } |
1567 | 680c1c6f | Jan Kiszka | ret = kvm_put_apic(env); |
1568 | 680c1c6f | Jan Kiszka | if (ret < 0) { |
1569 | 680c1c6f | Jan Kiszka | return ret;
|
1570 | 680c1c6f | Jan Kiszka | } |
1571 | ea643051 | Jan Kiszka | } |
1572 | ea643051 | Jan Kiszka | ret = kvm_put_vcpu_events(env, level); |
1573 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1574 | a0fb002c | Jan Kiszka | return ret;
|
1575 | b9bec74b | Jan Kiszka | } |
1576 | 0d75a9ec | Jan Kiszka | ret = kvm_put_debugregs(env); |
1577 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1578 | b0b1d690 | Jan Kiszka | return ret;
|
1579 | b9bec74b | Jan Kiszka | } |
1580 | b0b1d690 | Jan Kiszka | /* must be last */
|
1581 | b0b1d690 | Jan Kiszka | ret = kvm_guest_debug_workarounds(env); |
1582 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1583 | ff44f1a3 | Jan Kiszka | return ret;
|
1584 | b9bec74b | Jan Kiszka | } |
1585 | 05330448 | aliguori | return 0; |
1586 | 05330448 | aliguori | } |
1587 | 05330448 | aliguori | |
1588 | 317ac620 | Andreas Färber | int kvm_arch_get_registers(CPUX86State *env)
|
1589 | 05330448 | aliguori | { |
1590 | 05330448 | aliguori | int ret;
|
1591 | 05330448 | aliguori | |
1592 | b7680cb6 | Jan Kiszka | assert(cpu_is_stopped(env) || qemu_cpu_is_self(env)); |
1593 | dbaa07c4 | Jan Kiszka | |
1594 | 05330448 | aliguori | ret = kvm_getput_regs(env, 0);
|
1595 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1596 | 05330448 | aliguori | return ret;
|
1597 | b9bec74b | Jan Kiszka | } |
1598 | f1665b21 | Sheng Yang | ret = kvm_get_xsave(env); |
1599 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1600 | f1665b21 | Sheng Yang | return ret;
|
1601 | b9bec74b | Jan Kiszka | } |
1602 | f1665b21 | Sheng Yang | ret = kvm_get_xcrs(env); |
1603 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1604 | 05330448 | aliguori | return ret;
|
1605 | b9bec74b | Jan Kiszka | } |
1606 | 05330448 | aliguori | ret = kvm_get_sregs(env); |
1607 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1608 | 05330448 | aliguori | return ret;
|
1609 | b9bec74b | Jan Kiszka | } |
1610 | 05330448 | aliguori | ret = kvm_get_msrs(env); |
1611 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1612 | 05330448 | aliguori | return ret;
|
1613 | b9bec74b | Jan Kiszka | } |
1614 | 5a2e3c2e | Jan Kiszka | ret = kvm_get_mp_state(env); |
1615 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1616 | 5a2e3c2e | Jan Kiszka | return ret;
|
1617 | b9bec74b | Jan Kiszka | } |
1618 | 680c1c6f | Jan Kiszka | ret = kvm_get_apic(env); |
1619 | 680c1c6f | Jan Kiszka | if (ret < 0) { |
1620 | 680c1c6f | Jan Kiszka | return ret;
|
1621 | 680c1c6f | Jan Kiszka | } |
1622 | a0fb002c | Jan Kiszka | ret = kvm_get_vcpu_events(env); |
1623 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1624 | a0fb002c | Jan Kiszka | return ret;
|
1625 | b9bec74b | Jan Kiszka | } |
1626 | ff44f1a3 | Jan Kiszka | ret = kvm_get_debugregs(env); |
1627 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1628 | ff44f1a3 | Jan Kiszka | return ret;
|
1629 | b9bec74b | Jan Kiszka | } |
1630 | 05330448 | aliguori | return 0; |
1631 | 05330448 | aliguori | } |
1632 | 05330448 | aliguori | |
1633 | 317ac620 | Andreas Färber | void kvm_arch_pre_run(CPUX86State *env, struct kvm_run *run) |
1634 | 05330448 | aliguori | { |
1635 | ce377af3 | Jan Kiszka | int ret;
|
1636 | ce377af3 | Jan Kiszka | |
1637 | 276ce815 | Lai Jiangshan | /* Inject NMI */
|
1638 | 276ce815 | Lai Jiangshan | if (env->interrupt_request & CPU_INTERRUPT_NMI) {
|
1639 | 276ce815 | Lai Jiangshan | env->interrupt_request &= ~CPU_INTERRUPT_NMI; |
1640 | 276ce815 | Lai Jiangshan | DPRINTF("injected NMI\n");
|
1641 | ce377af3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_NMI); |
1642 | ce377af3 | Jan Kiszka | if (ret < 0) { |
1643 | ce377af3 | Jan Kiszka | fprintf(stderr, "KVM: injection failed, NMI lost (%s)\n",
|
1644 | ce377af3 | Jan Kiszka | strerror(-ret)); |
1645 | ce377af3 | Jan Kiszka | } |
1646 | 276ce815 | Lai Jiangshan | } |
1647 | 276ce815 | Lai Jiangshan | |
1648 | db1669bc | Jan Kiszka | if (!kvm_irqchip_in_kernel()) {
|
1649 | d362e757 | Jan Kiszka | /* Force the VCPU out of its inner loop to process any INIT requests
|
1650 | d362e757 | Jan Kiszka | * or pending TPR access reports. */
|
1651 | d362e757 | Jan Kiszka | if (env->interrupt_request &
|
1652 | d362e757 | Jan Kiszka | (CPU_INTERRUPT_INIT | CPU_INTERRUPT_TPR)) { |
1653 | db1669bc | Jan Kiszka | env->exit_request = 1;
|
1654 | 05330448 | aliguori | } |
1655 | 05330448 | aliguori | |
1656 | db1669bc | Jan Kiszka | /* Try to inject an interrupt if the guest can accept it */
|
1657 | db1669bc | Jan Kiszka | if (run->ready_for_interrupt_injection &&
|
1658 | db1669bc | Jan Kiszka | (env->interrupt_request & CPU_INTERRUPT_HARD) && |
1659 | db1669bc | Jan Kiszka | (env->eflags & IF_MASK)) { |
1660 | db1669bc | Jan Kiszka | int irq;
|
1661 | db1669bc | Jan Kiszka | |
1662 | db1669bc | Jan Kiszka | env->interrupt_request &= ~CPU_INTERRUPT_HARD; |
1663 | db1669bc | Jan Kiszka | irq = cpu_get_pic_interrupt(env); |
1664 | db1669bc | Jan Kiszka | if (irq >= 0) { |
1665 | db1669bc | Jan Kiszka | struct kvm_interrupt intr;
|
1666 | db1669bc | Jan Kiszka | |
1667 | db1669bc | Jan Kiszka | intr.irq = irq; |
1668 | db1669bc | Jan Kiszka | DPRINTF("injected interrupt %d\n", irq);
|
1669 | ce377af3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_INTERRUPT, &intr); |
1670 | ce377af3 | Jan Kiszka | if (ret < 0) { |
1671 | ce377af3 | Jan Kiszka | fprintf(stderr, |
1672 | ce377af3 | Jan Kiszka | "KVM: injection failed, interrupt lost (%s)\n",
|
1673 | ce377af3 | Jan Kiszka | strerror(-ret)); |
1674 | ce377af3 | Jan Kiszka | } |
1675 | db1669bc | Jan Kiszka | } |
1676 | db1669bc | Jan Kiszka | } |
1677 | 05330448 | aliguori | |
1678 | db1669bc | Jan Kiszka | /* If we have an interrupt but the guest is not ready to receive an
|
1679 | db1669bc | Jan Kiszka | * interrupt, request an interrupt window exit. This will
|
1680 | db1669bc | Jan Kiszka | * cause a return to userspace as soon as the guest is ready to
|
1681 | db1669bc | Jan Kiszka | * receive interrupts. */
|
1682 | db1669bc | Jan Kiszka | if ((env->interrupt_request & CPU_INTERRUPT_HARD)) {
|
1683 | db1669bc | Jan Kiszka | run->request_interrupt_window = 1;
|
1684 | db1669bc | Jan Kiszka | } else {
|
1685 | db1669bc | Jan Kiszka | run->request_interrupt_window = 0;
|
1686 | db1669bc | Jan Kiszka | } |
1687 | db1669bc | Jan Kiszka | |
1688 | db1669bc | Jan Kiszka | DPRINTF("setting tpr\n");
|
1689 | db1669bc | Jan Kiszka | run->cr8 = cpu_get_apic_tpr(env->apic_state); |
1690 | db1669bc | Jan Kiszka | } |
1691 | 05330448 | aliguori | } |
1692 | 05330448 | aliguori | |
1693 | 317ac620 | Andreas Färber | void kvm_arch_post_run(CPUX86State *env, struct kvm_run *run) |
1694 | 05330448 | aliguori | { |
1695 | b9bec74b | Jan Kiszka | if (run->if_flag) {
|
1696 | 05330448 | aliguori | env->eflags |= IF_MASK; |
1697 | b9bec74b | Jan Kiszka | } else {
|
1698 | 05330448 | aliguori | env->eflags &= ~IF_MASK; |
1699 | b9bec74b | Jan Kiszka | } |
1700 | 4a942cea | Blue Swirl | cpu_set_apic_tpr(env->apic_state, run->cr8); |
1701 | 4a942cea | Blue Swirl | cpu_set_apic_base(env->apic_state, run->apic_base); |
1702 | 05330448 | aliguori | } |
1703 | 05330448 | aliguori | |
1704 | 317ac620 | Andreas Färber | int kvm_arch_process_async_events(CPUX86State *env)
|
1705 | 0af691d7 | Marcelo Tosatti | { |
1706 | 232fc23b | Andreas Färber | X86CPU *cpu = x86_env_get_cpu(env); |
1707 | 232fc23b | Andreas Färber | |
1708 | ab443475 | Jan Kiszka | if (env->interrupt_request & CPU_INTERRUPT_MCE) {
|
1709 | ab443475 | Jan Kiszka | /* We must not raise CPU_INTERRUPT_MCE if it's not supported. */
|
1710 | ab443475 | Jan Kiszka | assert(env->mcg_cap); |
1711 | ab443475 | Jan Kiszka | |
1712 | ab443475 | Jan Kiszka | env->interrupt_request &= ~CPU_INTERRUPT_MCE; |
1713 | ab443475 | Jan Kiszka | |
1714 | ab443475 | Jan Kiszka | kvm_cpu_synchronize_state(env); |
1715 | ab443475 | Jan Kiszka | |
1716 | ab443475 | Jan Kiszka | if (env->exception_injected == EXCP08_DBLE) {
|
1717 | ab443475 | Jan Kiszka | /* this means triple fault */
|
1718 | ab443475 | Jan Kiszka | qemu_system_reset_request(); |
1719 | ab443475 | Jan Kiszka | env->exit_request = 1;
|
1720 | ab443475 | Jan Kiszka | return 0; |
1721 | ab443475 | Jan Kiszka | } |
1722 | ab443475 | Jan Kiszka | env->exception_injected = EXCP12_MCHK; |
1723 | ab443475 | Jan Kiszka | env->has_error_code = 0;
|
1724 | ab443475 | Jan Kiszka | |
1725 | ab443475 | Jan Kiszka | env->halted = 0;
|
1726 | ab443475 | Jan Kiszka | if (kvm_irqchip_in_kernel() && env->mp_state == KVM_MP_STATE_HALTED) {
|
1727 | ab443475 | Jan Kiszka | env->mp_state = KVM_MP_STATE_RUNNABLE; |
1728 | ab443475 | Jan Kiszka | } |
1729 | ab443475 | Jan Kiszka | } |
1730 | ab443475 | Jan Kiszka | |
1731 | db1669bc | Jan Kiszka | if (kvm_irqchip_in_kernel()) {
|
1732 | db1669bc | Jan Kiszka | return 0; |
1733 | db1669bc | Jan Kiszka | } |
1734 | db1669bc | Jan Kiszka | |
1735 | 4601f7b0 | Jan Kiszka | if (((env->interrupt_request & CPU_INTERRUPT_HARD) &&
|
1736 | 4601f7b0 | Jan Kiszka | (env->eflags & IF_MASK)) || |
1737 | 4601f7b0 | Jan Kiszka | (env->interrupt_request & CPU_INTERRUPT_NMI)) { |
1738 | 6792a57b | Jan Kiszka | env->halted = 0;
|
1739 | 6792a57b | Jan Kiszka | } |
1740 | 0af691d7 | Marcelo Tosatti | if (env->interrupt_request & CPU_INTERRUPT_INIT) {
|
1741 | 0af691d7 | Marcelo Tosatti | kvm_cpu_synchronize_state(env); |
1742 | 232fc23b | Andreas Färber | do_cpu_init(cpu); |
1743 | 0af691d7 | Marcelo Tosatti | } |
1744 | 0af691d7 | Marcelo Tosatti | if (env->interrupt_request & CPU_INTERRUPT_SIPI) {
|
1745 | 0af691d7 | Marcelo Tosatti | kvm_cpu_synchronize_state(env); |
1746 | 232fc23b | Andreas Färber | do_cpu_sipi(cpu); |
1747 | 0af691d7 | Marcelo Tosatti | } |
1748 | d362e757 | Jan Kiszka | if (env->interrupt_request & CPU_INTERRUPT_TPR) {
|
1749 | d362e757 | Jan Kiszka | env->interrupt_request &= ~CPU_INTERRUPT_TPR; |
1750 | d362e757 | Jan Kiszka | kvm_cpu_synchronize_state(env); |
1751 | d362e757 | Jan Kiszka | apic_handle_tpr_access_report(env->apic_state, env->eip, |
1752 | d362e757 | Jan Kiszka | env->tpr_access_type); |
1753 | d362e757 | Jan Kiszka | } |
1754 | 0af691d7 | Marcelo Tosatti | |
1755 | 0af691d7 | Marcelo Tosatti | return env->halted;
|
1756 | 0af691d7 | Marcelo Tosatti | } |
1757 | 0af691d7 | Marcelo Tosatti | |
1758 | 317ac620 | Andreas Färber | static int kvm_handle_halt(CPUX86State *env) |
1759 | 05330448 | aliguori | { |
1760 | 05330448 | aliguori | if (!((env->interrupt_request & CPU_INTERRUPT_HARD) &&
|
1761 | 05330448 | aliguori | (env->eflags & IF_MASK)) && |
1762 | 05330448 | aliguori | !(env->interrupt_request & CPU_INTERRUPT_NMI)) { |
1763 | 05330448 | aliguori | env->halted = 1;
|
1764 | bb4ea393 | Jan Kiszka | return EXCP_HLT;
|
1765 | 05330448 | aliguori | } |
1766 | 05330448 | aliguori | |
1767 | bb4ea393 | Jan Kiszka | return 0; |
1768 | 05330448 | aliguori | } |
1769 | 05330448 | aliguori | |
1770 | 317ac620 | Andreas Färber | static int kvm_handle_tpr_access(CPUX86State *env) |
1771 | d362e757 | Jan Kiszka | { |
1772 | d362e757 | Jan Kiszka | struct kvm_run *run = env->kvm_run;
|
1773 | d362e757 | Jan Kiszka | |
1774 | d362e757 | Jan Kiszka | apic_handle_tpr_access_report(env->apic_state, run->tpr_access.rip, |
1775 | d362e757 | Jan Kiszka | run->tpr_access.is_write ? TPR_ACCESS_WRITE |
1776 | d362e757 | Jan Kiszka | : TPR_ACCESS_READ); |
1777 | d362e757 | Jan Kiszka | return 1; |
1778 | d362e757 | Jan Kiszka | } |
1779 | d362e757 | Jan Kiszka | |
1780 | 317ac620 | Andreas Färber | int kvm_arch_insert_sw_breakpoint(CPUX86State *env, struct kvm_sw_breakpoint *bp) |
1781 | e22a25c9 | aliguori | { |
1782 | 38972938 | Juan Quintela | static const uint8_t int3 = 0xcc; |
1783 | 64bf3f4e | aliguori | |
1784 | e22a25c9 | aliguori | if (cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&bp->saved_insn, 1, 0) || |
1785 | b9bec74b | Jan Kiszka | cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&int3, 1, 1)) { |
1786 | e22a25c9 | aliguori | return -EINVAL;
|
1787 | b9bec74b | Jan Kiszka | } |
1788 | e22a25c9 | aliguori | return 0; |
1789 | e22a25c9 | aliguori | } |
1790 | e22a25c9 | aliguori | |
1791 | 317ac620 | Andreas Färber | int kvm_arch_remove_sw_breakpoint(CPUX86State *env, struct kvm_sw_breakpoint *bp) |
1792 | e22a25c9 | aliguori | { |
1793 | e22a25c9 | aliguori | uint8_t int3; |
1794 | e22a25c9 | aliguori | |
1795 | e22a25c9 | aliguori | if (cpu_memory_rw_debug(env, bp->pc, &int3, 1, 0) || int3 != 0xcc || |
1796 | b9bec74b | Jan Kiszka | cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&bp->saved_insn, 1, 1)) { |
1797 | e22a25c9 | aliguori | return -EINVAL;
|
1798 | b9bec74b | Jan Kiszka | } |
1799 | e22a25c9 | aliguori | return 0; |
1800 | e22a25c9 | aliguori | } |
1801 | e22a25c9 | aliguori | |
1802 | e22a25c9 | aliguori | static struct { |
1803 | e22a25c9 | aliguori | target_ulong addr; |
1804 | e22a25c9 | aliguori | int len;
|
1805 | e22a25c9 | aliguori | int type;
|
1806 | e22a25c9 | aliguori | } hw_breakpoint[4];
|
1807 | e22a25c9 | aliguori | |
1808 | e22a25c9 | aliguori | static int nb_hw_breakpoint; |
1809 | e22a25c9 | aliguori | |
1810 | e22a25c9 | aliguori | static int find_hw_breakpoint(target_ulong addr, int len, int type) |
1811 | e22a25c9 | aliguori | { |
1812 | e22a25c9 | aliguori | int n;
|
1813 | e22a25c9 | aliguori | |
1814 | b9bec74b | Jan Kiszka | for (n = 0; n < nb_hw_breakpoint; n++) { |
1815 | e22a25c9 | aliguori | if (hw_breakpoint[n].addr == addr && hw_breakpoint[n].type == type &&
|
1816 | b9bec74b | Jan Kiszka | (hw_breakpoint[n].len == len || len == -1)) {
|
1817 | e22a25c9 | aliguori | return n;
|
1818 | b9bec74b | Jan Kiszka | } |
1819 | b9bec74b | Jan Kiszka | } |
1820 | e22a25c9 | aliguori | return -1; |
1821 | e22a25c9 | aliguori | } |
1822 | e22a25c9 | aliguori | |
1823 | e22a25c9 | aliguori | int kvm_arch_insert_hw_breakpoint(target_ulong addr,
|
1824 | e22a25c9 | aliguori | target_ulong len, int type)
|
1825 | e22a25c9 | aliguori | { |
1826 | e22a25c9 | aliguori | switch (type) {
|
1827 | e22a25c9 | aliguori | case GDB_BREAKPOINT_HW:
|
1828 | e22a25c9 | aliguori | len = 1;
|
1829 | e22a25c9 | aliguori | break;
|
1830 | e22a25c9 | aliguori | case GDB_WATCHPOINT_WRITE:
|
1831 | e22a25c9 | aliguori | case GDB_WATCHPOINT_ACCESS:
|
1832 | e22a25c9 | aliguori | switch (len) {
|
1833 | e22a25c9 | aliguori | case 1: |
1834 | e22a25c9 | aliguori | break;
|
1835 | e22a25c9 | aliguori | case 2: |
1836 | e22a25c9 | aliguori | case 4: |
1837 | e22a25c9 | aliguori | case 8: |
1838 | b9bec74b | Jan Kiszka | if (addr & (len - 1)) { |
1839 | e22a25c9 | aliguori | return -EINVAL;
|
1840 | b9bec74b | Jan Kiszka | } |
1841 | e22a25c9 | aliguori | break;
|
1842 | e22a25c9 | aliguori | default:
|
1843 | e22a25c9 | aliguori | return -EINVAL;
|
1844 | e22a25c9 | aliguori | } |
1845 | e22a25c9 | aliguori | break;
|
1846 | e22a25c9 | aliguori | default:
|
1847 | e22a25c9 | aliguori | return -ENOSYS;
|
1848 | e22a25c9 | aliguori | } |
1849 | e22a25c9 | aliguori | |
1850 | b9bec74b | Jan Kiszka | if (nb_hw_breakpoint == 4) { |
1851 | e22a25c9 | aliguori | return -ENOBUFS;
|
1852 | b9bec74b | Jan Kiszka | } |
1853 | b9bec74b | Jan Kiszka | if (find_hw_breakpoint(addr, len, type) >= 0) { |
1854 | e22a25c9 | aliguori | return -EEXIST;
|
1855 | b9bec74b | Jan Kiszka | } |
1856 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].addr = addr; |
1857 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].len = len; |
1858 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].type = type; |
1859 | e22a25c9 | aliguori | nb_hw_breakpoint++; |
1860 | e22a25c9 | aliguori | |
1861 | e22a25c9 | aliguori | return 0; |
1862 | e22a25c9 | aliguori | } |
1863 | e22a25c9 | aliguori | |
1864 | e22a25c9 | aliguori | int kvm_arch_remove_hw_breakpoint(target_ulong addr,
|
1865 | e22a25c9 | aliguori | target_ulong len, int type)
|
1866 | e22a25c9 | aliguori | { |
1867 | e22a25c9 | aliguori | int n;
|
1868 | e22a25c9 | aliguori | |
1869 | e22a25c9 | aliguori | n = find_hw_breakpoint(addr, (type == GDB_BREAKPOINT_HW) ? 1 : len, type);
|
1870 | b9bec74b | Jan Kiszka | if (n < 0) { |
1871 | e22a25c9 | aliguori | return -ENOENT;
|
1872 | b9bec74b | Jan Kiszka | } |
1873 | e22a25c9 | aliguori | nb_hw_breakpoint--; |
1874 | e22a25c9 | aliguori | hw_breakpoint[n] = hw_breakpoint[nb_hw_breakpoint]; |
1875 | e22a25c9 | aliguori | |
1876 | e22a25c9 | aliguori | return 0; |
1877 | e22a25c9 | aliguori | } |
1878 | e22a25c9 | aliguori | |
1879 | e22a25c9 | aliguori | void kvm_arch_remove_all_hw_breakpoints(void) |
1880 | e22a25c9 | aliguori | { |
1881 | e22a25c9 | aliguori | nb_hw_breakpoint = 0;
|
1882 | e22a25c9 | aliguori | } |
1883 | e22a25c9 | aliguori | |
1884 | e22a25c9 | aliguori | static CPUWatchpoint hw_watchpoint;
|
1885 | e22a25c9 | aliguori | |
1886 | f2574737 | Jan Kiszka | static int kvm_handle_debug(struct kvm_debug_exit_arch *arch_info) |
1887 | e22a25c9 | aliguori | { |
1888 | f2574737 | Jan Kiszka | int ret = 0; |
1889 | e22a25c9 | aliguori | int n;
|
1890 | e22a25c9 | aliguori | |
1891 | e22a25c9 | aliguori | if (arch_info->exception == 1) { |
1892 | e22a25c9 | aliguori | if (arch_info->dr6 & (1 << 14)) { |
1893 | b9bec74b | Jan Kiszka | if (cpu_single_env->singlestep_enabled) {
|
1894 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1895 | b9bec74b | Jan Kiszka | } |
1896 | e22a25c9 | aliguori | } else {
|
1897 | b9bec74b | Jan Kiszka | for (n = 0; n < 4; n++) { |
1898 | b9bec74b | Jan Kiszka | if (arch_info->dr6 & (1 << n)) { |
1899 | e22a25c9 | aliguori | switch ((arch_info->dr7 >> (16 + n*4)) & 0x3) { |
1900 | e22a25c9 | aliguori | case 0x0: |
1901 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1902 | e22a25c9 | aliguori | break;
|
1903 | e22a25c9 | aliguori | case 0x1: |
1904 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1905 | e22a25c9 | aliguori | cpu_single_env->watchpoint_hit = &hw_watchpoint; |
1906 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
1907 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_WRITE; |
1908 | e22a25c9 | aliguori | break;
|
1909 | e22a25c9 | aliguori | case 0x3: |
1910 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1911 | e22a25c9 | aliguori | cpu_single_env->watchpoint_hit = &hw_watchpoint; |
1912 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
1913 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_ACCESS; |
1914 | e22a25c9 | aliguori | break;
|
1915 | e22a25c9 | aliguori | } |
1916 | b9bec74b | Jan Kiszka | } |
1917 | b9bec74b | Jan Kiszka | } |
1918 | e22a25c9 | aliguori | } |
1919 | b9bec74b | Jan Kiszka | } else if (kvm_find_sw_breakpoint(cpu_single_env, arch_info->pc)) { |
1920 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1921 | b9bec74b | Jan Kiszka | } |
1922 | f2574737 | Jan Kiszka | if (ret == 0) { |
1923 | b0b1d690 | Jan Kiszka | cpu_synchronize_state(cpu_single_env); |
1924 | b0b1d690 | Jan Kiszka | assert(cpu_single_env->exception_injected == -1);
|
1925 | b0b1d690 | Jan Kiszka | |
1926 | f2574737 | Jan Kiszka | /* pass to guest */
|
1927 | b0b1d690 | Jan Kiszka | cpu_single_env->exception_injected = arch_info->exception; |
1928 | b0b1d690 | Jan Kiszka | cpu_single_env->has_error_code = 0;
|
1929 | b0b1d690 | Jan Kiszka | } |
1930 | e22a25c9 | aliguori | |
1931 | f2574737 | Jan Kiszka | return ret;
|
1932 | e22a25c9 | aliguori | } |
1933 | e22a25c9 | aliguori | |
1934 | 317ac620 | Andreas Färber | void kvm_arch_update_guest_debug(CPUX86State *env, struct kvm_guest_debug *dbg) |
1935 | e22a25c9 | aliguori | { |
1936 | e22a25c9 | aliguori | const uint8_t type_code[] = {
|
1937 | e22a25c9 | aliguori | [GDB_BREAKPOINT_HW] = 0x0,
|
1938 | e22a25c9 | aliguori | [GDB_WATCHPOINT_WRITE] = 0x1,
|
1939 | e22a25c9 | aliguori | [GDB_WATCHPOINT_ACCESS] = 0x3
|
1940 | e22a25c9 | aliguori | }; |
1941 | e22a25c9 | aliguori | const uint8_t len_code[] = {
|
1942 | e22a25c9 | aliguori | [1] = 0x0, [2] = 0x1, [4] = 0x3, [8] = 0x2 |
1943 | e22a25c9 | aliguori | }; |
1944 | e22a25c9 | aliguori | int n;
|
1945 | e22a25c9 | aliguori | |
1946 | b9bec74b | Jan Kiszka | if (kvm_sw_breakpoints_active(env)) {
|
1947 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP; |
1948 | b9bec74b | Jan Kiszka | } |
1949 | e22a25c9 | aliguori | if (nb_hw_breakpoint > 0) { |
1950 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP; |
1951 | e22a25c9 | aliguori | dbg->arch.debugreg[7] = 0x0600; |
1952 | e22a25c9 | aliguori | for (n = 0; n < nb_hw_breakpoint; n++) { |
1953 | e22a25c9 | aliguori | dbg->arch.debugreg[n] = hw_breakpoint[n].addr; |
1954 | e22a25c9 | aliguori | dbg->arch.debugreg[7] |= (2 << (n * 2)) | |
1955 | e22a25c9 | aliguori | (type_code[hw_breakpoint[n].type] << (16 + n*4)) | |
1956 | 95c077c9 | Jan Kiszka | ((uint32_t)len_code[hw_breakpoint[n].len] << (18 + n*4)); |
1957 | e22a25c9 | aliguori | } |
1958 | e22a25c9 | aliguori | } |
1959 | e22a25c9 | aliguori | } |
1960 | 4513d923 | Gleb Natapov | |
1961 | 2a4dac83 | Jan Kiszka | static bool host_supports_vmx(void) |
1962 | 2a4dac83 | Jan Kiszka | { |
1963 | 2a4dac83 | Jan Kiszka | uint32_t ecx, unused; |
1964 | 2a4dac83 | Jan Kiszka | |
1965 | 2a4dac83 | Jan Kiszka | host_cpuid(1, 0, &unused, &unused, &ecx, &unused); |
1966 | 2a4dac83 | Jan Kiszka | return ecx & CPUID_EXT_VMX;
|
1967 | 2a4dac83 | Jan Kiszka | } |
1968 | 2a4dac83 | Jan Kiszka | |
1969 | 2a4dac83 | Jan Kiszka | #define VMX_INVALID_GUEST_STATE 0x80000021 |
1970 | 2a4dac83 | Jan Kiszka | |
1971 | 317ac620 | Andreas Färber | int kvm_arch_handle_exit(CPUX86State *env, struct kvm_run *run) |
1972 | 2a4dac83 | Jan Kiszka | { |
1973 | 2a4dac83 | Jan Kiszka | uint64_t code; |
1974 | 2a4dac83 | Jan Kiszka | int ret;
|
1975 | 2a4dac83 | Jan Kiszka | |
1976 | 2a4dac83 | Jan Kiszka | switch (run->exit_reason) {
|
1977 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_HLT:
|
1978 | 2a4dac83 | Jan Kiszka | DPRINTF("handle_hlt\n");
|
1979 | 2a4dac83 | Jan Kiszka | ret = kvm_handle_halt(env); |
1980 | 2a4dac83 | Jan Kiszka | break;
|
1981 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_SET_TPR:
|
1982 | 2a4dac83 | Jan Kiszka | ret = 0;
|
1983 | 2a4dac83 | Jan Kiszka | break;
|
1984 | d362e757 | Jan Kiszka | case KVM_EXIT_TPR_ACCESS:
|
1985 | d362e757 | Jan Kiszka | ret = kvm_handle_tpr_access(env); |
1986 | d362e757 | Jan Kiszka | break;
|
1987 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_FAIL_ENTRY:
|
1988 | 2a4dac83 | Jan Kiszka | code = run->fail_entry.hardware_entry_failure_reason; |
1989 | 2a4dac83 | Jan Kiszka | fprintf(stderr, "KVM: entry failed, hardware error 0x%" PRIx64 "\n", |
1990 | 2a4dac83 | Jan Kiszka | code); |
1991 | 2a4dac83 | Jan Kiszka | if (host_supports_vmx() && code == VMX_INVALID_GUEST_STATE) {
|
1992 | 2a4dac83 | Jan Kiszka | fprintf(stderr, |
1993 | 12619721 | Vagrant Cascadian | "\nIf you're running a guest on an Intel machine without "
|
1994 | 2a4dac83 | Jan Kiszka | "unrestricted mode\n"
|
1995 | 2a4dac83 | Jan Kiszka | "support, the failure can be most likely due to the guest "
|
1996 | 2a4dac83 | Jan Kiszka | "entering an invalid\n"
|
1997 | 2a4dac83 | Jan Kiszka | "state for Intel VT. For example, the guest maybe running "
|
1998 | 2a4dac83 | Jan Kiszka | "in big real mode\n"
|
1999 | 2a4dac83 | Jan Kiszka | "which is not supported on less recent Intel processors."
|
2000 | 2a4dac83 | Jan Kiszka | "\n\n");
|
2001 | 2a4dac83 | Jan Kiszka | } |
2002 | 2a4dac83 | Jan Kiszka | ret = -1;
|
2003 | 2a4dac83 | Jan Kiszka | break;
|
2004 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_EXCEPTION:
|
2005 | 2a4dac83 | Jan Kiszka | fprintf(stderr, "KVM: exception %d exit (error code 0x%x)\n",
|
2006 | 2a4dac83 | Jan Kiszka | run->ex.exception, run->ex.error_code); |
2007 | 2a4dac83 | Jan Kiszka | ret = -1;
|
2008 | 2a4dac83 | Jan Kiszka | break;
|
2009 | f2574737 | Jan Kiszka | case KVM_EXIT_DEBUG:
|
2010 | f2574737 | Jan Kiszka | DPRINTF("kvm_exit_debug\n");
|
2011 | f2574737 | Jan Kiszka | ret = kvm_handle_debug(&run->debug.arch); |
2012 | f2574737 | Jan Kiszka | break;
|
2013 | 2a4dac83 | Jan Kiszka | default:
|
2014 | 2a4dac83 | Jan Kiszka | fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason);
|
2015 | 2a4dac83 | Jan Kiszka | ret = -1;
|
2016 | 2a4dac83 | Jan Kiszka | break;
|
2017 | 2a4dac83 | Jan Kiszka | } |
2018 | 2a4dac83 | Jan Kiszka | |
2019 | 2a4dac83 | Jan Kiszka | return ret;
|
2020 | 2a4dac83 | Jan Kiszka | } |
2021 | 2a4dac83 | Jan Kiszka | |
2022 | 317ac620 | Andreas Färber | bool kvm_arch_stop_on_emulation_error(CPUX86State *env)
|
2023 | 4513d923 | Gleb Natapov | { |
2024 | d1f86636 | Gleb Natapov | kvm_cpu_synchronize_state(env); |
2025 | b9bec74b | Jan Kiszka | return !(env->cr[0] & CR0_PE_MASK) || |
2026 | b9bec74b | Jan Kiszka | ((env->segs[R_CS].selector & 3) != 3); |
2027 | 4513d923 | Gleb Natapov | } |
2028 | 84b058d7 | Jan Kiszka | |
2029 | 84b058d7 | Jan Kiszka | void kvm_arch_init_irq_routing(KVMState *s)
|
2030 | 84b058d7 | Jan Kiszka | { |
2031 | 84b058d7 | Jan Kiszka | if (!kvm_check_extension(s, KVM_CAP_IRQ_ROUTING)) {
|
2032 | 84b058d7 | Jan Kiszka | /* If kernel can't do irq routing, interrupt source
|
2033 | 84b058d7 | Jan Kiszka | * override 0->2 cannot be set up as required by HPET.
|
2034 | 84b058d7 | Jan Kiszka | * So we have to disable it.
|
2035 | 84b058d7 | Jan Kiszka | */
|
2036 | 84b058d7 | Jan Kiszka | no_hpet = 1;
|
2037 | 84b058d7 | Jan Kiszka | } |
2038 | 84b058d7 | Jan Kiszka | } |