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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 | 05330448 | aliguori | |
33 | 05330448 | aliguori | //#define DEBUG_KVM
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34 | 05330448 | aliguori | |
35 | 05330448 | aliguori | #ifdef DEBUG_KVM
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36 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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37 | 05330448 | aliguori | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
38 | 05330448 | aliguori | #else
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39 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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40 | 05330448 | aliguori | do { } while (0) |
41 | 05330448 | aliguori | #endif
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42 | 05330448 | aliguori | |
43 | 1a03675d | Glauber Costa | #define MSR_KVM_WALL_CLOCK 0x11 |
44 | 1a03675d | Glauber Costa | #define MSR_KVM_SYSTEM_TIME 0x12 |
45 | 1a03675d | Glauber Costa | |
46 | c0532a76 | Marcelo Tosatti | #ifndef BUS_MCEERR_AR
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47 | c0532a76 | Marcelo Tosatti | #define BUS_MCEERR_AR 4 |
48 | c0532a76 | Marcelo Tosatti | #endif
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49 | c0532a76 | Marcelo Tosatti | #ifndef BUS_MCEERR_AO
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50 | c0532a76 | Marcelo Tosatti | #define BUS_MCEERR_AO 5 |
51 | c0532a76 | Marcelo Tosatti | #endif
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52 | c0532a76 | Marcelo Tosatti | |
53 | 94a8d39a | Jan Kiszka | const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
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54 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(SET_TSS_ADDR), |
55 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(EXT_CPUID), |
56 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(MP_STATE), |
57 | 94a8d39a | Jan Kiszka | KVM_CAP_LAST_INFO |
58 | 94a8d39a | Jan Kiszka | }; |
59 | 25d2e361 | Marcelo Tosatti | |
60 | c3a3a7d3 | Jan Kiszka | static bool has_msr_star; |
61 | c3a3a7d3 | Jan Kiszka | static bool has_msr_hsave_pa; |
62 | c5999bfc | Jan Kiszka | static bool has_msr_async_pf_en; |
63 | 25d2e361 | Marcelo Tosatti | static int lm_capable_kernel; |
64 | b827df58 | Avi Kivity | |
65 | b827df58 | Avi Kivity | static struct kvm_cpuid2 *try_get_cpuid(KVMState *s, int max) |
66 | b827df58 | Avi Kivity | { |
67 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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68 | b827df58 | Avi Kivity | int r, size;
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69 | b827df58 | Avi Kivity | |
70 | b827df58 | Avi Kivity | size = sizeof(*cpuid) + max * sizeof(*cpuid->entries); |
71 | 7267c094 | Anthony Liguori | cpuid = (struct kvm_cpuid2 *)g_malloc0(size);
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72 | b827df58 | Avi Kivity | cpuid->nent = max; |
73 | b827df58 | Avi Kivity | r = kvm_ioctl(s, KVM_GET_SUPPORTED_CPUID, cpuid); |
74 | 76ae317f | Mark McLoughlin | if (r == 0 && cpuid->nent >= max) { |
75 | 76ae317f | Mark McLoughlin | r = -E2BIG; |
76 | 76ae317f | Mark McLoughlin | } |
77 | b827df58 | Avi Kivity | if (r < 0) { |
78 | b827df58 | Avi Kivity | if (r == -E2BIG) {
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79 | 7267c094 | Anthony Liguori | g_free(cpuid); |
80 | b827df58 | Avi Kivity | return NULL; |
81 | b827df58 | Avi Kivity | } else {
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82 | b827df58 | Avi Kivity | fprintf(stderr, "KVM_GET_SUPPORTED_CPUID failed: %s\n",
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83 | b827df58 | Avi Kivity | strerror(-r)); |
84 | b827df58 | Avi Kivity | exit(1);
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85 | b827df58 | Avi Kivity | } |
86 | b827df58 | Avi Kivity | } |
87 | b827df58 | Avi Kivity | return cpuid;
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88 | b827df58 | Avi Kivity | } |
89 | b827df58 | Avi Kivity | |
90 | 0c31b744 | Glauber Costa | struct kvm_para_features {
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91 | 0c31b744 | Glauber Costa | int cap;
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92 | 0c31b744 | Glauber Costa | int feature;
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93 | 0c31b744 | Glauber Costa | } para_features[] = { |
94 | 0c31b744 | Glauber Costa | { KVM_CAP_CLOCKSOURCE, KVM_FEATURE_CLOCKSOURCE }, |
95 | 0c31b744 | Glauber Costa | { KVM_CAP_NOP_IO_DELAY, KVM_FEATURE_NOP_IO_DELAY }, |
96 | 0c31b744 | Glauber Costa | { KVM_CAP_PV_MMU, KVM_FEATURE_MMU_OP }, |
97 | 0c31b744 | Glauber Costa | { KVM_CAP_ASYNC_PF, KVM_FEATURE_ASYNC_PF }, |
98 | 0c31b744 | Glauber Costa | { -1, -1 } |
99 | 0c31b744 | Glauber Costa | }; |
100 | 0c31b744 | Glauber Costa | |
101 | ba9bc59e | Jan Kiszka | static int get_para_features(KVMState *s) |
102 | 0c31b744 | Glauber Costa | { |
103 | 0c31b744 | Glauber Costa | int i, features = 0; |
104 | 0c31b744 | Glauber Costa | |
105 | 0c31b744 | Glauber Costa | for (i = 0; i < ARRAY_SIZE(para_features) - 1; i++) { |
106 | ba9bc59e | Jan Kiszka | if (kvm_check_extension(s, para_features[i].cap)) {
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107 | 0c31b744 | Glauber Costa | features |= (1 << para_features[i].feature);
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108 | 0c31b744 | Glauber Costa | } |
109 | 0c31b744 | Glauber Costa | } |
110 | 0c31b744 | Glauber Costa | |
111 | 0c31b744 | Glauber Costa | return features;
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112 | 0c31b744 | Glauber Costa | } |
113 | 0c31b744 | Glauber Costa | |
114 | 0c31b744 | Glauber Costa | |
115 | ba9bc59e | Jan Kiszka | uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function, |
116 | c958a8bd | Sheng Yang | uint32_t index, int reg)
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117 | b827df58 | Avi Kivity | { |
118 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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119 | b827df58 | Avi Kivity | int i, max;
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120 | b827df58 | Avi Kivity | uint32_t ret = 0;
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121 | b827df58 | Avi Kivity | uint32_t cpuid_1_edx; |
122 | 0c31b744 | Glauber Costa | int has_kvm_features = 0; |
123 | b827df58 | Avi Kivity | |
124 | b827df58 | Avi Kivity | max = 1;
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125 | ba9bc59e | Jan Kiszka | while ((cpuid = try_get_cpuid(s, max)) == NULL) { |
126 | b827df58 | Avi Kivity | max *= 2;
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127 | b827df58 | Avi Kivity | } |
128 | b827df58 | Avi Kivity | |
129 | b827df58 | Avi Kivity | for (i = 0; i < cpuid->nent; ++i) { |
130 | c958a8bd | Sheng Yang | if (cpuid->entries[i].function == function &&
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131 | c958a8bd | Sheng Yang | cpuid->entries[i].index == index) { |
132 | 0c31b744 | Glauber Costa | if (cpuid->entries[i].function == KVM_CPUID_FEATURES) {
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133 | 0c31b744 | Glauber Costa | has_kvm_features = 1;
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134 | 0c31b744 | Glauber Costa | } |
135 | b827df58 | Avi Kivity | switch (reg) {
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136 | b827df58 | Avi Kivity | case R_EAX:
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137 | b827df58 | Avi Kivity | ret = cpuid->entries[i].eax; |
138 | b827df58 | Avi Kivity | break;
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139 | b827df58 | Avi Kivity | case R_EBX:
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140 | b827df58 | Avi Kivity | ret = cpuid->entries[i].ebx; |
141 | b827df58 | Avi Kivity | break;
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142 | b827df58 | Avi Kivity | case R_ECX:
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143 | b827df58 | Avi Kivity | ret = cpuid->entries[i].ecx; |
144 | b827df58 | Avi Kivity | break;
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145 | b827df58 | Avi Kivity | case R_EDX:
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146 | b827df58 | Avi Kivity | ret = cpuid->entries[i].edx; |
147 | 19ccb8ea | Jan Kiszka | switch (function) {
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148 | 19ccb8ea | Jan Kiszka | case 1: |
149 | 19ccb8ea | Jan Kiszka | /* KVM before 2.6.30 misreports the following features */
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150 | 19ccb8ea | Jan Kiszka | ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA; |
151 | 19ccb8ea | Jan Kiszka | break;
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152 | 19ccb8ea | Jan Kiszka | case 0x80000001: |
153 | b827df58 | Avi Kivity | /* On Intel, kvm returns cpuid according to the Intel spec,
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154 | b827df58 | Avi Kivity | * so add missing bits according to the AMD spec:
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155 | b827df58 | Avi Kivity | */
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156 | ba9bc59e | Jan Kiszka | cpuid_1_edx = kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); |
157 | c1667e40 | Gleb Natapov | ret |= cpuid_1_edx & 0x183f7ff;
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158 | 19ccb8ea | Jan Kiszka | break;
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159 | b827df58 | Avi Kivity | } |
160 | b827df58 | Avi Kivity | break;
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161 | b827df58 | Avi Kivity | } |
162 | b827df58 | Avi Kivity | } |
163 | b827df58 | Avi Kivity | } |
164 | b827df58 | Avi Kivity | |
165 | 7267c094 | Anthony Liguori | g_free(cpuid); |
166 | b827df58 | Avi Kivity | |
167 | 0c31b744 | Glauber Costa | /* fallback for older kernels */
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168 | 0c31b744 | Glauber Costa | if (!has_kvm_features && (function == KVM_CPUID_FEATURES)) {
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169 | ba9bc59e | Jan Kiszka | ret = get_para_features(s); |
170 | b9bec74b | Jan Kiszka | } |
171 | 0c31b744 | Glauber Costa | |
172 | 0c31b744 | Glauber Costa | return ret;
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173 | bb0300dc | Gleb Natapov | } |
174 | bb0300dc | Gleb Natapov | |
175 | 3c85e74f | Huang Ying | typedef struct HWPoisonPage { |
176 | 3c85e74f | Huang Ying | ram_addr_t ram_addr; |
177 | 3c85e74f | Huang Ying | QLIST_ENTRY(HWPoisonPage) list; |
178 | 3c85e74f | Huang Ying | } HWPoisonPage; |
179 | 3c85e74f | Huang Ying | |
180 | 3c85e74f | Huang Ying | static QLIST_HEAD(, HWPoisonPage) hwpoison_page_list =
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181 | 3c85e74f | Huang Ying | QLIST_HEAD_INITIALIZER(hwpoison_page_list); |
182 | 3c85e74f | Huang Ying | |
183 | 3c85e74f | Huang Ying | static void kvm_unpoison_all(void *param) |
184 | 3c85e74f | Huang Ying | { |
185 | 3c85e74f | Huang Ying | HWPoisonPage *page, *next_page; |
186 | 3c85e74f | Huang Ying | |
187 | 3c85e74f | Huang Ying | QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) { |
188 | 3c85e74f | Huang Ying | QLIST_REMOVE(page, list); |
189 | 3c85e74f | Huang Ying | qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE); |
190 | 7267c094 | Anthony Liguori | g_free(page); |
191 | 3c85e74f | Huang Ying | } |
192 | 3c85e74f | Huang Ying | } |
193 | 3c85e74f | Huang Ying | |
194 | 3c85e74f | Huang Ying | static void kvm_hwpoison_page_add(ram_addr_t ram_addr) |
195 | 3c85e74f | Huang Ying | { |
196 | 3c85e74f | Huang Ying | HWPoisonPage *page; |
197 | 3c85e74f | Huang Ying | |
198 | 3c85e74f | Huang Ying | QLIST_FOREACH(page, &hwpoison_page_list, list) { |
199 | 3c85e74f | Huang Ying | if (page->ram_addr == ram_addr) {
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200 | 3c85e74f | Huang Ying | return;
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201 | 3c85e74f | Huang Ying | } |
202 | 3c85e74f | Huang Ying | } |
203 | 7267c094 | Anthony Liguori | page = g_malloc(sizeof(HWPoisonPage));
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204 | 3c85e74f | Huang Ying | page->ram_addr = ram_addr; |
205 | 3c85e74f | Huang Ying | QLIST_INSERT_HEAD(&hwpoison_page_list, page, list); |
206 | 3c85e74f | Huang Ying | } |
207 | 3c85e74f | Huang Ying | |
208 | e7701825 | Marcelo Tosatti | static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap, |
209 | e7701825 | Marcelo Tosatti | int *max_banks)
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210 | e7701825 | Marcelo Tosatti | { |
211 | e7701825 | Marcelo Tosatti | int r;
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212 | e7701825 | Marcelo Tosatti | |
213 | 14a09518 | Lai Jiangshan | r = kvm_check_extension(s, KVM_CAP_MCE); |
214 | e7701825 | Marcelo Tosatti | if (r > 0) { |
215 | e7701825 | Marcelo Tosatti | *max_banks = r; |
216 | e7701825 | Marcelo Tosatti | return kvm_ioctl(s, KVM_X86_GET_MCE_CAP_SUPPORTED, mce_cap);
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217 | e7701825 | Marcelo Tosatti | } |
218 | e7701825 | Marcelo Tosatti | return -ENOSYS;
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219 | e7701825 | Marcelo Tosatti | } |
220 | e7701825 | Marcelo Tosatti | |
221 | c34d440a | Jan Kiszka | static void kvm_mce_inject(CPUState *env, target_phys_addr_t paddr, int code) |
222 | e7701825 | Marcelo Tosatti | { |
223 | c34d440a | Jan Kiszka | uint64_t status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | |
224 | c34d440a | Jan Kiszka | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S; |
225 | c34d440a | Jan Kiszka | uint64_t mcg_status = MCG_STATUS_MCIP; |
226 | e7701825 | Marcelo Tosatti | |
227 | c34d440a | Jan Kiszka | if (code == BUS_MCEERR_AR) {
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228 | c34d440a | Jan Kiszka | status |= MCI_STATUS_AR | 0x134;
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229 | c34d440a | Jan Kiszka | mcg_status |= MCG_STATUS_EIPV; |
230 | c34d440a | Jan Kiszka | } else {
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231 | c34d440a | Jan Kiszka | status |= 0xc0;
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232 | c34d440a | Jan Kiszka | mcg_status |= MCG_STATUS_RIPV; |
233 | 419fb20a | Jan Kiszka | } |
234 | c34d440a | Jan Kiszka | cpu_x86_inject_mce(NULL, env, 9, status, mcg_status, paddr, |
235 | c34d440a | Jan Kiszka | (MCM_ADDR_PHYS << 6) | 0xc, |
236 | c34d440a | Jan Kiszka | cpu_x86_support_mca_broadcast(env) ? |
237 | c34d440a | Jan Kiszka | MCE_INJECT_BROADCAST : 0);
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238 | 419fb20a | Jan Kiszka | } |
239 | 419fb20a | Jan Kiszka | |
240 | 419fb20a | Jan Kiszka | static void hardware_memory_error(void) |
241 | 419fb20a | Jan Kiszka | { |
242 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error!\n");
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243 | 419fb20a | Jan Kiszka | exit(1);
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244 | 419fb20a | Jan Kiszka | } |
245 | 419fb20a | Jan Kiszka | |
246 | 419fb20a | Jan Kiszka | int kvm_arch_on_sigbus_vcpu(CPUState *env, int code, void *addr) |
247 | 419fb20a | Jan Kiszka | { |
248 | 419fb20a | Jan Kiszka | ram_addr_t ram_addr; |
249 | 419fb20a | Jan Kiszka | target_phys_addr_t paddr; |
250 | 419fb20a | Jan Kiszka | |
251 | 419fb20a | Jan Kiszka | if ((env->mcg_cap & MCG_SER_P) && addr
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252 | c34d440a | Jan Kiszka | && (code == BUS_MCEERR_AR || code == BUS_MCEERR_AO)) { |
253 | c34d440a | Jan Kiszka | if (qemu_ram_addr_from_host(addr, &ram_addr) ||
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254 | c34d440a | Jan Kiszka | !kvm_physical_memory_addr_from_ram(env->kvm_state, ram_addr, |
255 | c34d440a | Jan Kiszka | &paddr)) { |
256 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error for memory used by "
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257 | 419fb20a | Jan Kiszka | "QEMU itself instead of guest system!\n");
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258 | 419fb20a | Jan Kiszka | /* Hope we are lucky for AO MCE */
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259 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
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260 | 419fb20a | Jan Kiszka | return 0; |
261 | 419fb20a | Jan Kiszka | } else {
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262 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
263 | 419fb20a | Jan Kiszka | } |
264 | 419fb20a | Jan Kiszka | } |
265 | 3c85e74f | Huang Ying | kvm_hwpoison_page_add(ram_addr); |
266 | c34d440a | Jan Kiszka | kvm_mce_inject(env, paddr, code); |
267 | e56ff191 | Jan Kiszka | } else {
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268 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
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269 | 419fb20a | Jan Kiszka | return 0; |
270 | 419fb20a | Jan Kiszka | } else if (code == BUS_MCEERR_AR) { |
271 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
272 | 419fb20a | Jan Kiszka | } else {
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273 | 419fb20a | Jan Kiszka | return 1; |
274 | 419fb20a | Jan Kiszka | } |
275 | 419fb20a | Jan Kiszka | } |
276 | 419fb20a | Jan Kiszka | return 0; |
277 | 419fb20a | Jan Kiszka | } |
278 | 419fb20a | Jan Kiszka | |
279 | 419fb20a | Jan Kiszka | int kvm_arch_on_sigbus(int code, void *addr) |
280 | 419fb20a | Jan Kiszka | { |
281 | 419fb20a | Jan Kiszka | if ((first_cpu->mcg_cap & MCG_SER_P) && addr && code == BUS_MCEERR_AO) {
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282 | 419fb20a | Jan Kiszka | ram_addr_t ram_addr; |
283 | 419fb20a | Jan Kiszka | target_phys_addr_t paddr; |
284 | 419fb20a | Jan Kiszka | |
285 | 419fb20a | Jan Kiszka | /* Hope we are lucky for AO MCE */
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286 | c34d440a | Jan Kiszka | if (qemu_ram_addr_from_host(addr, &ram_addr) ||
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287 | 419fb20a | Jan Kiszka | !kvm_physical_memory_addr_from_ram(first_cpu->kvm_state, ram_addr, |
288 | 419fb20a | Jan Kiszka | &paddr)) { |
289 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error for memory used by "
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290 | 419fb20a | Jan Kiszka | "QEMU itself instead of guest system!: %p\n", addr);
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291 | 419fb20a | Jan Kiszka | return 0; |
292 | 419fb20a | Jan Kiszka | } |
293 | 3c85e74f | Huang Ying | kvm_hwpoison_page_add(ram_addr); |
294 | c34d440a | Jan Kiszka | kvm_mce_inject(first_cpu, paddr, code); |
295 | e56ff191 | Jan Kiszka | } else {
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296 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
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297 | 419fb20a | Jan Kiszka | return 0; |
298 | 419fb20a | Jan Kiszka | } else if (code == BUS_MCEERR_AR) { |
299 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
300 | 419fb20a | Jan Kiszka | } else {
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301 | 419fb20a | Jan Kiszka | return 1; |
302 | 419fb20a | Jan Kiszka | } |
303 | 419fb20a | Jan Kiszka | } |
304 | 419fb20a | Jan Kiszka | return 0; |
305 | 419fb20a | Jan Kiszka | } |
306 | e7701825 | Marcelo Tosatti | |
307 | ab443475 | Jan Kiszka | static int kvm_inject_mce_oldstyle(CPUState *env) |
308 | ab443475 | Jan Kiszka | { |
309 | ab443475 | Jan Kiszka | if (!kvm_has_vcpu_events() && env->exception_injected == EXCP12_MCHK) {
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310 | ab443475 | Jan Kiszka | unsigned int bank, bank_num = env->mcg_cap & 0xff; |
311 | ab443475 | Jan Kiszka | struct kvm_x86_mce mce;
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312 | ab443475 | Jan Kiszka | |
313 | ab443475 | Jan Kiszka | env->exception_injected = -1;
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314 | ab443475 | Jan Kiszka | |
315 | ab443475 | Jan Kiszka | /*
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316 | ab443475 | Jan Kiszka | * There must be at least one bank in use if an MCE is pending.
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317 | ab443475 | Jan Kiszka | * Find it and use its values for the event injection.
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318 | ab443475 | Jan Kiszka | */
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319 | ab443475 | Jan Kiszka | for (bank = 0; bank < bank_num; bank++) { |
320 | ab443475 | Jan Kiszka | if (env->mce_banks[bank * 4 + 1] & MCI_STATUS_VAL) { |
321 | ab443475 | Jan Kiszka | break;
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322 | ab443475 | Jan Kiszka | } |
323 | ab443475 | Jan Kiszka | } |
324 | ab443475 | Jan Kiszka | assert(bank < bank_num); |
325 | ab443475 | Jan Kiszka | |
326 | ab443475 | Jan Kiszka | mce.bank = bank; |
327 | ab443475 | Jan Kiszka | mce.status = env->mce_banks[bank * 4 + 1]; |
328 | ab443475 | Jan Kiszka | mce.mcg_status = env->mcg_status; |
329 | ab443475 | Jan Kiszka | mce.addr = env->mce_banks[bank * 4 + 2]; |
330 | ab443475 | Jan Kiszka | mce.misc = env->mce_banks[bank * 4 + 3]; |
331 | ab443475 | Jan Kiszka | |
332 | ab443475 | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_X86_SET_MCE, &mce);
|
333 | ab443475 | Jan Kiszka | } |
334 | ab443475 | Jan Kiszka | return 0; |
335 | ab443475 | Jan Kiszka | } |
336 | ab443475 | Jan Kiszka | |
337 | b8cc45d6 | Glauber Costa | static void cpu_update_state(void *opaque, int running, int reason) |
338 | b8cc45d6 | Glauber Costa | { |
339 | b8cc45d6 | Glauber Costa | CPUState *env = opaque; |
340 | b8cc45d6 | Glauber Costa | |
341 | b8cc45d6 | Glauber Costa | if (running) {
|
342 | b8cc45d6 | Glauber Costa | env->tsc_valid = false;
|
343 | b8cc45d6 | Glauber Costa | } |
344 | b8cc45d6 | Glauber Costa | } |
345 | b8cc45d6 | Glauber Costa | |
346 | 05330448 | aliguori | int kvm_arch_init_vcpu(CPUState *env)
|
347 | 05330448 | aliguori | { |
348 | 05330448 | aliguori | struct {
|
349 | 486bd5a2 | aliguori | struct kvm_cpuid2 cpuid;
|
350 | 486bd5a2 | aliguori | struct kvm_cpuid_entry2 entries[100]; |
351 | 05330448 | aliguori | } __attribute__((packed)) cpuid_data; |
352 | ba9bc59e | Jan Kiszka | KVMState *s = env->kvm_state; |
353 | 486bd5a2 | aliguori | uint32_t limit, i, j, cpuid_i; |
354 | a33609ca | aliguori | uint32_t unused; |
355 | bb0300dc | Gleb Natapov | struct kvm_cpuid_entry2 *c;
|
356 | bb0300dc | Gleb Natapov | uint32_t signature[3];
|
357 | e7429073 | Joerg Roedel | int r;
|
358 | 05330448 | aliguori | |
359 | ba9bc59e | Jan Kiszka | env->cpuid_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); |
360 | 6c0d7ee8 | Andre Przywara | |
361 | 6c0d7ee8 | Andre Przywara | i = env->cpuid_ext_features & CPUID_EXT_HYPERVISOR; |
362 | ba9bc59e | Jan Kiszka | env->cpuid_ext_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_ECX); |
363 | 6c0d7ee8 | Andre Przywara | env->cpuid_ext_features |= i; |
364 | 6c0d7ee8 | Andre Przywara | |
365 | ba9bc59e | Jan Kiszka | env->cpuid_ext2_features &= kvm_arch_get_supported_cpuid(s, 0x80000001,
|
366 | c958a8bd | Sheng Yang | 0, R_EDX);
|
367 | ba9bc59e | Jan Kiszka | env->cpuid_ext3_features &= kvm_arch_get_supported_cpuid(s, 0x80000001,
|
368 | c958a8bd | Sheng Yang | 0, R_ECX);
|
369 | ba9bc59e | Jan Kiszka | env->cpuid_svm_features &= kvm_arch_get_supported_cpuid(s, 0x8000000A,
|
370 | 296acb64 | Joerg Roedel | 0, R_EDX);
|
371 | 296acb64 | Joerg Roedel | |
372 | 05330448 | aliguori | cpuid_i = 0;
|
373 | 05330448 | aliguori | |
374 | bb0300dc | Gleb Natapov | /* Paravirtualization CPUIDs */
|
375 | bb0300dc | Gleb Natapov | memcpy(signature, "KVMKVMKVM\0\0\0", 12); |
376 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
377 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
378 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_SIGNATURE; |
379 | bb0300dc | Gleb Natapov | c->eax = 0;
|
380 | bb0300dc | Gleb Natapov | c->ebx = signature[0];
|
381 | bb0300dc | Gleb Natapov | c->ecx = signature[1];
|
382 | bb0300dc | Gleb Natapov | c->edx = signature[2];
|
383 | bb0300dc | Gleb Natapov | |
384 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
385 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
386 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_FEATURES; |
387 | ba9bc59e | Jan Kiszka | c->eax = env->cpuid_kvm_features & |
388 | ba9bc59e | Jan Kiszka | kvm_arch_get_supported_cpuid(s, KVM_CPUID_FEATURES, 0, R_EAX);
|
389 | 0c31b744 | Glauber Costa | |
390 | 0c31b744 | Glauber Costa | has_msr_async_pf_en = c->eax & (1 << KVM_FEATURE_ASYNC_PF);
|
391 | 0c31b744 | Glauber Costa | |
392 | a33609ca | aliguori | cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); |
393 | 05330448 | aliguori | |
394 | 05330448 | aliguori | for (i = 0; i <= limit; i++) { |
395 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
396 | 486bd5a2 | aliguori | |
397 | 486bd5a2 | aliguori | switch (i) {
|
398 | a36b1029 | aliguori | case 2: { |
399 | a36b1029 | aliguori | /* Keep reading function 2 till all the input is received */
|
400 | a36b1029 | aliguori | int times;
|
401 | a36b1029 | aliguori | |
402 | a36b1029 | aliguori | c->function = i; |
403 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC | |
404 | a33609ca | aliguori | KVM_CPUID_FLAG_STATE_READ_NEXT; |
405 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
406 | a33609ca | aliguori | times = c->eax & 0xff;
|
407 | a36b1029 | aliguori | |
408 | a36b1029 | aliguori | for (j = 1; j < times; ++j) { |
409 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
410 | a36b1029 | aliguori | c->function = i; |
411 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC; |
412 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
413 | a36b1029 | aliguori | } |
414 | a36b1029 | aliguori | break;
|
415 | a36b1029 | aliguori | } |
416 | 486bd5a2 | aliguori | case 4: |
417 | 486bd5a2 | aliguori | case 0xb: |
418 | 486bd5a2 | aliguori | case 0xd: |
419 | 486bd5a2 | aliguori | for (j = 0; ; j++) { |
420 | 31e8c696 | Andre Przywara | if (i == 0xd && j == 64) { |
421 | 31e8c696 | Andre Przywara | break;
|
422 | 31e8c696 | Andre Przywara | } |
423 | 486bd5a2 | aliguori | c->function = i; |
424 | 486bd5a2 | aliguori | c->flags = KVM_CPUID_FLAG_SIGNIFCANT_INDEX; |
425 | 486bd5a2 | aliguori | c->index = j; |
426 | a33609ca | aliguori | cpu_x86_cpuid(env, i, j, &c->eax, &c->ebx, &c->ecx, &c->edx); |
427 | 486bd5a2 | aliguori | |
428 | b9bec74b | Jan Kiszka | if (i == 4 && c->eax == 0) { |
429 | 486bd5a2 | aliguori | break;
|
430 | b9bec74b | Jan Kiszka | } |
431 | b9bec74b | Jan Kiszka | if (i == 0xb && !(c->ecx & 0xff00)) { |
432 | 486bd5a2 | aliguori | break;
|
433 | b9bec74b | Jan Kiszka | } |
434 | b9bec74b | Jan Kiszka | if (i == 0xd && c->eax == 0) { |
435 | 31e8c696 | Andre Przywara | continue;
|
436 | b9bec74b | Jan Kiszka | } |
437 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
438 | 486bd5a2 | aliguori | } |
439 | 486bd5a2 | aliguori | break;
|
440 | 486bd5a2 | aliguori | default:
|
441 | 486bd5a2 | aliguori | c->function = i; |
442 | a33609ca | aliguori | c->flags = 0;
|
443 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
444 | 486bd5a2 | aliguori | break;
|
445 | 486bd5a2 | aliguori | } |
446 | 05330448 | aliguori | } |
447 | a33609ca | aliguori | cpu_x86_cpuid(env, 0x80000000, 0, &limit, &unused, &unused, &unused); |
448 | 05330448 | aliguori | |
449 | 05330448 | aliguori | for (i = 0x80000000; i <= limit; i++) { |
450 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
451 | 05330448 | aliguori | |
452 | 05330448 | aliguori | c->function = i; |
453 | a33609ca | aliguori | c->flags = 0;
|
454 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
455 | 05330448 | aliguori | } |
456 | 05330448 | aliguori | |
457 | b3baa152 | brillywu@viatech.com.cn | /* Call Centaur's CPUID instructions they are supported. */
|
458 | b3baa152 | brillywu@viatech.com.cn | if (env->cpuid_xlevel2 > 0) { |
459 | b3baa152 | brillywu@viatech.com.cn | env->cpuid_ext4_features &= |
460 | ba9bc59e | Jan Kiszka | kvm_arch_get_supported_cpuid(s, 0xC0000001, 0, R_EDX); |
461 | b3baa152 | brillywu@viatech.com.cn | cpu_x86_cpuid(env, 0xC0000000, 0, &limit, &unused, &unused, &unused); |
462 | b3baa152 | brillywu@viatech.com.cn | |
463 | b3baa152 | brillywu@viatech.com.cn | for (i = 0xC0000000; i <= limit; i++) { |
464 | b3baa152 | brillywu@viatech.com.cn | c = &cpuid_data.entries[cpuid_i++]; |
465 | b3baa152 | brillywu@viatech.com.cn | |
466 | b3baa152 | brillywu@viatech.com.cn | c->function = i; |
467 | b3baa152 | brillywu@viatech.com.cn | c->flags = 0;
|
468 | b3baa152 | brillywu@viatech.com.cn | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
469 | b3baa152 | brillywu@viatech.com.cn | } |
470 | b3baa152 | brillywu@viatech.com.cn | } |
471 | b3baa152 | brillywu@viatech.com.cn | |
472 | 05330448 | aliguori | cpuid_data.cpuid.nent = cpuid_i; |
473 | 05330448 | aliguori | |
474 | e7701825 | Marcelo Tosatti | if (((env->cpuid_version >> 8)&0xF) >= 6 |
475 | e7701825 | Marcelo Tosatti | && (env->cpuid_features&(CPUID_MCE|CPUID_MCA)) == (CPUID_MCE|CPUID_MCA) |
476 | e7701825 | Marcelo Tosatti | && kvm_check_extension(env->kvm_state, KVM_CAP_MCE) > 0) {
|
477 | e7701825 | Marcelo Tosatti | uint64_t mcg_cap; |
478 | e7701825 | Marcelo Tosatti | int banks;
|
479 | 32a42024 | Jan Kiszka | int ret;
|
480 | e7701825 | Marcelo Tosatti | |
481 | 75d49497 | Jan Kiszka | ret = kvm_get_mce_cap_supported(env->kvm_state, &mcg_cap, &banks); |
482 | 75d49497 | Jan Kiszka | if (ret < 0) { |
483 | 75d49497 | Jan Kiszka | fprintf(stderr, "kvm_get_mce_cap_supported: %s", strerror(-ret));
|
484 | 75d49497 | Jan Kiszka | return ret;
|
485 | e7701825 | Marcelo Tosatti | } |
486 | 75d49497 | Jan Kiszka | |
487 | 75d49497 | Jan Kiszka | if (banks > MCE_BANKS_DEF) {
|
488 | 75d49497 | Jan Kiszka | banks = MCE_BANKS_DEF; |
489 | 75d49497 | Jan Kiszka | } |
490 | 75d49497 | Jan Kiszka | mcg_cap &= MCE_CAP_DEF; |
491 | 75d49497 | Jan Kiszka | mcg_cap |= banks; |
492 | 75d49497 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_X86_SETUP_MCE, &mcg_cap); |
493 | 75d49497 | Jan Kiszka | if (ret < 0) { |
494 | 75d49497 | Jan Kiszka | fprintf(stderr, "KVM_X86_SETUP_MCE: %s", strerror(-ret));
|
495 | 75d49497 | Jan Kiszka | return ret;
|
496 | 75d49497 | Jan Kiszka | } |
497 | 75d49497 | Jan Kiszka | |
498 | 75d49497 | Jan Kiszka | env->mcg_cap = mcg_cap; |
499 | e7701825 | Marcelo Tosatti | } |
500 | e7701825 | Marcelo Tosatti | |
501 | b8cc45d6 | Glauber Costa | qemu_add_vm_change_state_handler(cpu_update_state, env); |
502 | b8cc45d6 | Glauber Costa | |
503 | e7429073 | Joerg Roedel | r = kvm_vcpu_ioctl(env, KVM_SET_CPUID2, &cpuid_data); |
504 | fdc9c41a | Jan Kiszka | if (r) {
|
505 | fdc9c41a | Jan Kiszka | return r;
|
506 | fdc9c41a | Jan Kiszka | } |
507 | e7429073 | Joerg Roedel | |
508 | e7429073 | Joerg Roedel | r = kvm_check_extension(env->kvm_state, KVM_CAP_TSC_CONTROL); |
509 | e7429073 | Joerg Roedel | if (r && env->tsc_khz) {
|
510 | e7429073 | Joerg Roedel | r = kvm_vcpu_ioctl(env, KVM_SET_TSC_KHZ, env->tsc_khz); |
511 | e7429073 | Joerg Roedel | if (r < 0) { |
512 | e7429073 | Joerg Roedel | fprintf(stderr, "KVM_SET_TSC_KHZ failed\n");
|
513 | e7429073 | Joerg Roedel | return r;
|
514 | e7429073 | Joerg Roedel | } |
515 | e7429073 | Joerg Roedel | } |
516 | e7429073 | Joerg Roedel | |
517 | e7429073 | Joerg Roedel | return 0; |
518 | 05330448 | aliguori | } |
519 | 05330448 | aliguori | |
520 | caa5af0f | Jan Kiszka | void kvm_arch_reset_vcpu(CPUState *env)
|
521 | caa5af0f | Jan Kiszka | { |
522 | e73223a5 | Gleb Natapov | env->exception_injected = -1;
|
523 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
524 | 1a5e9d2f | Jan Kiszka | env->xcr0 = 1;
|
525 | ddced198 | Marcelo Tosatti | if (kvm_irqchip_in_kernel()) {
|
526 | ddced198 | Marcelo Tosatti | env->mp_state = cpu_is_bsp(env) ? KVM_MP_STATE_RUNNABLE : |
527 | ddced198 | Marcelo Tosatti | KVM_MP_STATE_UNINITIALIZED; |
528 | ddced198 | Marcelo Tosatti | } else {
|
529 | ddced198 | Marcelo Tosatti | env->mp_state = KVM_MP_STATE_RUNNABLE; |
530 | ddced198 | Marcelo Tosatti | } |
531 | caa5af0f | Jan Kiszka | } |
532 | caa5af0f | Jan Kiszka | |
533 | c3a3a7d3 | Jan Kiszka | static int kvm_get_supported_msrs(KVMState *s) |
534 | 05330448 | aliguori | { |
535 | 75b10c43 | Marcelo Tosatti | static int kvm_supported_msrs; |
536 | c3a3a7d3 | Jan Kiszka | int ret = 0; |
537 | 05330448 | aliguori | |
538 | 05330448 | aliguori | /* first time */
|
539 | 75b10c43 | Marcelo Tosatti | if (kvm_supported_msrs == 0) { |
540 | 05330448 | aliguori | struct kvm_msr_list msr_list, *kvm_msr_list;
|
541 | 05330448 | aliguori | |
542 | 75b10c43 | Marcelo Tosatti | kvm_supported_msrs = -1;
|
543 | 05330448 | aliguori | |
544 | 05330448 | aliguori | /* Obtain MSR list from KVM. These are the MSRs that we must
|
545 | 05330448 | aliguori | * save/restore */
|
546 | 4c9f7372 | aliguori | msr_list.nmsrs = 0;
|
547 | c3a3a7d3 | Jan Kiszka | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, &msr_list); |
548 | 6fb6d245 | Jan Kiszka | if (ret < 0 && ret != -E2BIG) { |
549 | c3a3a7d3 | Jan Kiszka | return ret;
|
550 | 6fb6d245 | Jan Kiszka | } |
551 | d9db889f | Jan Kiszka | /* Old kernel modules had a bug and could write beyond the provided
|
552 | d9db889f | Jan Kiszka | memory. Allocate at least a safe amount of 1K. */
|
553 | 7267c094 | Anthony Liguori | kvm_msr_list = g_malloc0(MAX(1024, sizeof(msr_list) + |
554 | d9db889f | Jan Kiszka | msr_list.nmsrs * |
555 | d9db889f | Jan Kiszka | sizeof(msr_list.indices[0]))); |
556 | 05330448 | aliguori | |
557 | 55308450 | aliguori | kvm_msr_list->nmsrs = msr_list.nmsrs; |
558 | c3a3a7d3 | Jan Kiszka | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, kvm_msr_list); |
559 | 05330448 | aliguori | if (ret >= 0) { |
560 | 05330448 | aliguori | int i;
|
561 | 05330448 | aliguori | |
562 | 05330448 | aliguori | for (i = 0; i < kvm_msr_list->nmsrs; i++) { |
563 | 05330448 | aliguori | if (kvm_msr_list->indices[i] == MSR_STAR) {
|
564 | c3a3a7d3 | Jan Kiszka | has_msr_star = true;
|
565 | 75b10c43 | Marcelo Tosatti | continue;
|
566 | 75b10c43 | Marcelo Tosatti | } |
567 | 75b10c43 | Marcelo Tosatti | if (kvm_msr_list->indices[i] == MSR_VM_HSAVE_PA) {
|
568 | c3a3a7d3 | Jan Kiszka | has_msr_hsave_pa = true;
|
569 | 75b10c43 | Marcelo Tosatti | continue;
|
570 | 05330448 | aliguori | } |
571 | 05330448 | aliguori | } |
572 | 05330448 | aliguori | } |
573 | 05330448 | aliguori | |
574 | 7267c094 | Anthony Liguori | g_free(kvm_msr_list); |
575 | 05330448 | aliguori | } |
576 | 05330448 | aliguori | |
577 | c3a3a7d3 | Jan Kiszka | return ret;
|
578 | 05330448 | aliguori | } |
579 | 05330448 | aliguori | |
580 | cad1e282 | Jan Kiszka | int kvm_arch_init(KVMState *s)
|
581 | 20420430 | Sheng Yang | { |
582 | 11076198 | Jan Kiszka | uint64_t identity_base = 0xfffbc000;
|
583 | 20420430 | Sheng Yang | int ret;
|
584 | 25d2e361 | Marcelo Tosatti | struct utsname utsname;
|
585 | 20420430 | Sheng Yang | |
586 | c3a3a7d3 | Jan Kiszka | ret = kvm_get_supported_msrs(s); |
587 | 20420430 | Sheng Yang | if (ret < 0) { |
588 | 20420430 | Sheng Yang | return ret;
|
589 | 20420430 | Sheng Yang | } |
590 | 25d2e361 | Marcelo Tosatti | |
591 | 25d2e361 | Marcelo Tosatti | uname(&utsname); |
592 | 25d2e361 | Marcelo Tosatti | lm_capable_kernel = strcmp(utsname.machine, "x86_64") == 0; |
593 | 25d2e361 | Marcelo Tosatti | |
594 | 4c5b10b7 | Jes Sorensen | /*
|
595 | 11076198 | Jan Kiszka | * On older Intel CPUs, KVM uses vm86 mode to emulate 16-bit code directly.
|
596 | 11076198 | Jan Kiszka | * In order to use vm86 mode, an EPT identity map and a TSS are needed.
|
597 | 11076198 | Jan Kiszka | * Since these must be part of guest physical memory, we need to allocate
|
598 | 11076198 | Jan Kiszka | * them, both by setting their start addresses in the kernel and by
|
599 | 11076198 | Jan Kiszka | * creating a corresponding e820 entry. We need 4 pages before the BIOS.
|
600 | 11076198 | Jan Kiszka | *
|
601 | 11076198 | Jan Kiszka | * Older KVM versions may not support setting the identity map base. In
|
602 | 11076198 | Jan Kiszka | * that case we need to stick with the default, i.e. a 256K maximum BIOS
|
603 | 11076198 | Jan Kiszka | * size.
|
604 | 4c5b10b7 | Jes Sorensen | */
|
605 | 11076198 | Jan Kiszka | if (kvm_check_extension(s, KVM_CAP_SET_IDENTITY_MAP_ADDR)) {
|
606 | 11076198 | Jan Kiszka | /* Allows up to 16M BIOSes. */
|
607 | 11076198 | Jan Kiszka | identity_base = 0xfeffc000;
|
608 | 11076198 | Jan Kiszka | |
609 | 11076198 | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_SET_IDENTITY_MAP_ADDR, &identity_base); |
610 | 11076198 | Jan Kiszka | if (ret < 0) { |
611 | 11076198 | Jan Kiszka | return ret;
|
612 | 11076198 | Jan Kiszka | } |
613 | 4c5b10b7 | Jes Sorensen | } |
614 | e56ff191 | Jan Kiszka | |
615 | 11076198 | Jan Kiszka | /* Set TSS base one page after EPT identity map. */
|
616 | 11076198 | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_SET_TSS_ADDR, identity_base + 0x1000);
|
617 | 20420430 | Sheng Yang | if (ret < 0) { |
618 | 20420430 | Sheng Yang | return ret;
|
619 | 20420430 | Sheng Yang | } |
620 | 20420430 | Sheng Yang | |
621 | 11076198 | Jan Kiszka | /* Tell fw_cfg to notify the BIOS to reserve the range. */
|
622 | 11076198 | Jan Kiszka | ret = e820_add_entry(identity_base, 0x4000, E820_RESERVED);
|
623 | 20420430 | Sheng Yang | if (ret < 0) { |
624 | 11076198 | Jan Kiszka | fprintf(stderr, "e820_add_entry() table is full\n");
|
625 | 20420430 | Sheng Yang | return ret;
|
626 | 20420430 | Sheng Yang | } |
627 | 3c85e74f | Huang Ying | qemu_register_reset(kvm_unpoison_all, NULL);
|
628 | 20420430 | Sheng Yang | |
629 | 11076198 | Jan Kiszka | return 0; |
630 | 05330448 | aliguori | } |
631 | b9bec74b | Jan Kiszka | |
632 | 05330448 | aliguori | static void set_v8086_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
633 | 05330448 | aliguori | { |
634 | 05330448 | aliguori | lhs->selector = rhs->selector; |
635 | 05330448 | aliguori | lhs->base = rhs->base; |
636 | 05330448 | aliguori | lhs->limit = rhs->limit; |
637 | 05330448 | aliguori | lhs->type = 3;
|
638 | 05330448 | aliguori | lhs->present = 1;
|
639 | 05330448 | aliguori | lhs->dpl = 3;
|
640 | 05330448 | aliguori | lhs->db = 0;
|
641 | 05330448 | aliguori | lhs->s = 1;
|
642 | 05330448 | aliguori | lhs->l = 0;
|
643 | 05330448 | aliguori | lhs->g = 0;
|
644 | 05330448 | aliguori | lhs->avl = 0;
|
645 | 05330448 | aliguori | lhs->unusable = 0;
|
646 | 05330448 | aliguori | } |
647 | 05330448 | aliguori | |
648 | 05330448 | aliguori | static void set_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
649 | 05330448 | aliguori | { |
650 | 05330448 | aliguori | unsigned flags = rhs->flags;
|
651 | 05330448 | aliguori | lhs->selector = rhs->selector; |
652 | 05330448 | aliguori | lhs->base = rhs->base; |
653 | 05330448 | aliguori | lhs->limit = rhs->limit; |
654 | 05330448 | aliguori | lhs->type = (flags >> DESC_TYPE_SHIFT) & 15;
|
655 | 05330448 | aliguori | lhs->present = (flags & DESC_P_MASK) != 0;
|
656 | acaa7550 | Jan Kiszka | lhs->dpl = (flags >> DESC_DPL_SHIFT) & 3;
|
657 | 05330448 | aliguori | lhs->db = (flags >> DESC_B_SHIFT) & 1;
|
658 | 05330448 | aliguori | lhs->s = (flags & DESC_S_MASK) != 0;
|
659 | 05330448 | aliguori | lhs->l = (flags >> DESC_L_SHIFT) & 1;
|
660 | 05330448 | aliguori | lhs->g = (flags & DESC_G_MASK) != 0;
|
661 | 05330448 | aliguori | lhs->avl = (flags & DESC_AVL_MASK) != 0;
|
662 | 05330448 | aliguori | lhs->unusable = 0;
|
663 | 05330448 | aliguori | } |
664 | 05330448 | aliguori | |
665 | 05330448 | aliguori | static void get_seg(SegmentCache *lhs, const struct kvm_segment *rhs) |
666 | 05330448 | aliguori | { |
667 | 05330448 | aliguori | lhs->selector = rhs->selector; |
668 | 05330448 | aliguori | lhs->base = rhs->base; |
669 | 05330448 | aliguori | lhs->limit = rhs->limit; |
670 | b9bec74b | Jan Kiszka | lhs->flags = (rhs->type << DESC_TYPE_SHIFT) | |
671 | b9bec74b | Jan Kiszka | (rhs->present * DESC_P_MASK) | |
672 | b9bec74b | Jan Kiszka | (rhs->dpl << DESC_DPL_SHIFT) | |
673 | b9bec74b | Jan Kiszka | (rhs->db << DESC_B_SHIFT) | |
674 | b9bec74b | Jan Kiszka | (rhs->s * DESC_S_MASK) | |
675 | b9bec74b | Jan Kiszka | (rhs->l << DESC_L_SHIFT) | |
676 | b9bec74b | Jan Kiszka | (rhs->g * DESC_G_MASK) | |
677 | b9bec74b | Jan Kiszka | (rhs->avl * DESC_AVL_MASK); |
678 | 05330448 | aliguori | } |
679 | 05330448 | aliguori | |
680 | 05330448 | aliguori | static void kvm_getput_reg(__u64 *kvm_reg, target_ulong *qemu_reg, int set) |
681 | 05330448 | aliguori | { |
682 | b9bec74b | Jan Kiszka | if (set) {
|
683 | 05330448 | aliguori | *kvm_reg = *qemu_reg; |
684 | b9bec74b | Jan Kiszka | } else {
|
685 | 05330448 | aliguori | *qemu_reg = *kvm_reg; |
686 | b9bec74b | Jan Kiszka | } |
687 | 05330448 | aliguori | } |
688 | 05330448 | aliguori | |
689 | 05330448 | aliguori | static int kvm_getput_regs(CPUState *env, int set) |
690 | 05330448 | aliguori | { |
691 | 05330448 | aliguori | struct kvm_regs regs;
|
692 | 05330448 | aliguori | int ret = 0; |
693 | 05330448 | aliguori | |
694 | 05330448 | aliguori | if (!set) {
|
695 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_REGS, ®s); |
696 | b9bec74b | Jan Kiszka | if (ret < 0) { |
697 | 05330448 | aliguori | return ret;
|
698 | b9bec74b | Jan Kiszka | } |
699 | 05330448 | aliguori | } |
700 | 05330448 | aliguori | |
701 | 05330448 | aliguori | kvm_getput_reg(®s.rax, &env->regs[R_EAX], set); |
702 | 05330448 | aliguori | kvm_getput_reg(®s.rbx, &env->regs[R_EBX], set); |
703 | 05330448 | aliguori | kvm_getput_reg(®s.rcx, &env->regs[R_ECX], set); |
704 | 05330448 | aliguori | kvm_getput_reg(®s.rdx, &env->regs[R_EDX], set); |
705 | 05330448 | aliguori | kvm_getput_reg(®s.rsi, &env->regs[R_ESI], set); |
706 | 05330448 | aliguori | kvm_getput_reg(®s.rdi, &env->regs[R_EDI], set); |
707 | 05330448 | aliguori | kvm_getput_reg(®s.rsp, &env->regs[R_ESP], set); |
708 | 05330448 | aliguori | kvm_getput_reg(®s.rbp, &env->regs[R_EBP], set); |
709 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
710 | 05330448 | aliguori | kvm_getput_reg(®s.r8, &env->regs[8], set);
|
711 | 05330448 | aliguori | kvm_getput_reg(®s.r9, &env->regs[9], set);
|
712 | 05330448 | aliguori | kvm_getput_reg(®s.r10, &env->regs[10], set);
|
713 | 05330448 | aliguori | kvm_getput_reg(®s.r11, &env->regs[11], set);
|
714 | 05330448 | aliguori | kvm_getput_reg(®s.r12, &env->regs[12], set);
|
715 | 05330448 | aliguori | kvm_getput_reg(®s.r13, &env->regs[13], set);
|
716 | 05330448 | aliguori | kvm_getput_reg(®s.r14, &env->regs[14], set);
|
717 | 05330448 | aliguori | kvm_getput_reg(®s.r15, &env->regs[15], set);
|
718 | 05330448 | aliguori | #endif
|
719 | 05330448 | aliguori | |
720 | 05330448 | aliguori | kvm_getput_reg(®s.rflags, &env->eflags, set); |
721 | 05330448 | aliguori | kvm_getput_reg(®s.rip, &env->eip, set); |
722 | 05330448 | aliguori | |
723 | b9bec74b | Jan Kiszka | if (set) {
|
724 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_SET_REGS, ®s); |
725 | b9bec74b | Jan Kiszka | } |
726 | 05330448 | aliguori | |
727 | 05330448 | aliguori | return ret;
|
728 | 05330448 | aliguori | } |
729 | 05330448 | aliguori | |
730 | 05330448 | aliguori | static int kvm_put_fpu(CPUState *env) |
731 | 05330448 | aliguori | { |
732 | 05330448 | aliguori | struct kvm_fpu fpu;
|
733 | 05330448 | aliguori | int i;
|
734 | 05330448 | aliguori | |
735 | 05330448 | aliguori | memset(&fpu, 0, sizeof fpu); |
736 | 05330448 | aliguori | fpu.fsw = env->fpus & ~(7 << 11); |
737 | 05330448 | aliguori | fpu.fsw |= (env->fpstt & 7) << 11; |
738 | 05330448 | aliguori | fpu.fcw = env->fpuc; |
739 | 42cc8fa6 | Jan Kiszka | fpu.last_opcode = env->fpop; |
740 | 42cc8fa6 | Jan Kiszka | fpu.last_ip = env->fpip; |
741 | 42cc8fa6 | Jan Kiszka | fpu.last_dp = env->fpdp; |
742 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
743 | b9bec74b | Jan Kiszka | fpu.ftwx |= (!env->fptags[i]) << i; |
744 | b9bec74b | Jan Kiszka | } |
745 | 05330448 | aliguori | memcpy(fpu.fpr, env->fpregs, sizeof env->fpregs);
|
746 | 05330448 | aliguori | memcpy(fpu.xmm, env->xmm_regs, sizeof env->xmm_regs);
|
747 | 05330448 | aliguori | fpu.mxcsr = env->mxcsr; |
748 | 05330448 | aliguori | |
749 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_FPU, &fpu);
|
750 | 05330448 | aliguori | } |
751 | 05330448 | aliguori | |
752 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RIP 2 |
753 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RDP 4 |
754 | f1665b21 | Sheng Yang | #define XSAVE_MXCSR 6 |
755 | f1665b21 | Sheng Yang | #define XSAVE_ST_SPACE 8 |
756 | f1665b21 | Sheng Yang | #define XSAVE_XMM_SPACE 40 |
757 | f1665b21 | Sheng Yang | #define XSAVE_XSTATE_BV 128 |
758 | f1665b21 | Sheng Yang | #define XSAVE_YMMH_SPACE 144 |
759 | f1665b21 | Sheng Yang | |
760 | f1665b21 | Sheng Yang | static int kvm_put_xsave(CPUState *env) |
761 | f1665b21 | Sheng Yang | { |
762 | 0f53994f | Marcelo Tosatti | int i, r;
|
763 | f1665b21 | Sheng Yang | struct kvm_xsave* xsave;
|
764 | 42cc8fa6 | Jan Kiszka | uint16_t cwd, swd, twd; |
765 | f1665b21 | Sheng Yang | |
766 | b9bec74b | Jan Kiszka | if (!kvm_has_xsave()) {
|
767 | f1665b21 | Sheng Yang | return kvm_put_fpu(env);
|
768 | b9bec74b | Jan Kiszka | } |
769 | f1665b21 | Sheng Yang | |
770 | f1665b21 | Sheng Yang | xsave = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
771 | f1665b21 | Sheng Yang | memset(xsave, 0, sizeof(struct kvm_xsave)); |
772 | 42cc8fa6 | Jan Kiszka | cwd = swd = twd = 0;
|
773 | f1665b21 | Sheng Yang | swd = env->fpus & ~(7 << 11); |
774 | f1665b21 | Sheng Yang | swd |= (env->fpstt & 7) << 11; |
775 | f1665b21 | Sheng Yang | cwd = env->fpuc; |
776 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
777 | f1665b21 | Sheng Yang | twd |= (!env->fptags[i]) << i; |
778 | b9bec74b | Jan Kiszka | } |
779 | f1665b21 | Sheng Yang | xsave->region[0] = (uint32_t)(swd << 16) + cwd; |
780 | 42cc8fa6 | Jan Kiszka | xsave->region[1] = (uint32_t)(env->fpop << 16) + twd; |
781 | 42cc8fa6 | Jan Kiszka | memcpy(&xsave->region[XSAVE_CWD_RIP], &env->fpip, sizeof(env->fpip));
|
782 | 42cc8fa6 | Jan Kiszka | memcpy(&xsave->region[XSAVE_CWD_RDP], &env->fpdp, sizeof(env->fpdp));
|
783 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs, |
784 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
785 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_XMM_SPACE], env->xmm_regs, |
786 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
787 | f1665b21 | Sheng Yang | xsave->region[XSAVE_MXCSR] = env->mxcsr; |
788 | f1665b21 | Sheng Yang | *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV] = env->xstate_bv; |
789 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_YMMH_SPACE], env->ymmh_regs, |
790 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
791 | 0f53994f | Marcelo Tosatti | r = kvm_vcpu_ioctl(env, KVM_SET_XSAVE, xsave); |
792 | 7267c094 | Anthony Liguori | g_free(xsave); |
793 | 0f53994f | Marcelo Tosatti | return r;
|
794 | f1665b21 | Sheng Yang | } |
795 | f1665b21 | Sheng Yang | |
796 | f1665b21 | Sheng Yang | static int kvm_put_xcrs(CPUState *env) |
797 | f1665b21 | Sheng Yang | { |
798 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
799 | f1665b21 | Sheng Yang | |
800 | b9bec74b | Jan Kiszka | if (!kvm_has_xcrs()) {
|
801 | f1665b21 | Sheng Yang | return 0; |
802 | b9bec74b | Jan Kiszka | } |
803 | f1665b21 | Sheng Yang | |
804 | f1665b21 | Sheng Yang | xcrs.nr_xcrs = 1;
|
805 | f1665b21 | Sheng Yang | xcrs.flags = 0;
|
806 | f1665b21 | Sheng Yang | xcrs.xcrs[0].xcr = 0; |
807 | f1665b21 | Sheng Yang | xcrs.xcrs[0].value = env->xcr0;
|
808 | f1665b21 | Sheng Yang | return kvm_vcpu_ioctl(env, KVM_SET_XCRS, &xcrs);
|
809 | f1665b21 | Sheng Yang | } |
810 | f1665b21 | Sheng Yang | |
811 | 05330448 | aliguori | static int kvm_put_sregs(CPUState *env) |
812 | 05330448 | aliguori | { |
813 | 05330448 | aliguori | struct kvm_sregs sregs;
|
814 | 05330448 | aliguori | |
815 | 0e607a80 | Jan Kiszka | memset(sregs.interrupt_bitmap, 0, sizeof(sregs.interrupt_bitmap)); |
816 | 0e607a80 | Jan Kiszka | if (env->interrupt_injected >= 0) { |
817 | 0e607a80 | Jan Kiszka | sregs.interrupt_bitmap[env->interrupt_injected / 64] |=
|
818 | 0e607a80 | Jan Kiszka | (uint64_t)1 << (env->interrupt_injected % 64); |
819 | 0e607a80 | Jan Kiszka | } |
820 | 05330448 | aliguori | |
821 | 05330448 | aliguori | if ((env->eflags & VM_MASK)) {
|
822 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.cs, &env->segs[R_CS]); |
823 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.ds, &env->segs[R_DS]); |
824 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.es, &env->segs[R_ES]); |
825 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.fs, &env->segs[R_FS]); |
826 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.gs, &env->segs[R_GS]); |
827 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.ss, &env->segs[R_SS]); |
828 | 05330448 | aliguori | } else {
|
829 | b9bec74b | Jan Kiszka | set_seg(&sregs.cs, &env->segs[R_CS]); |
830 | b9bec74b | Jan Kiszka | set_seg(&sregs.ds, &env->segs[R_DS]); |
831 | b9bec74b | Jan Kiszka | set_seg(&sregs.es, &env->segs[R_ES]); |
832 | b9bec74b | Jan Kiszka | set_seg(&sregs.fs, &env->segs[R_FS]); |
833 | b9bec74b | Jan Kiszka | set_seg(&sregs.gs, &env->segs[R_GS]); |
834 | b9bec74b | Jan Kiszka | set_seg(&sregs.ss, &env->segs[R_SS]); |
835 | 05330448 | aliguori | } |
836 | 05330448 | aliguori | |
837 | 05330448 | aliguori | set_seg(&sregs.tr, &env->tr); |
838 | 05330448 | aliguori | set_seg(&sregs.ldt, &env->ldt); |
839 | 05330448 | aliguori | |
840 | 05330448 | aliguori | sregs.idt.limit = env->idt.limit; |
841 | 05330448 | aliguori | sregs.idt.base = env->idt.base; |
842 | 05330448 | aliguori | sregs.gdt.limit = env->gdt.limit; |
843 | 05330448 | aliguori | sregs.gdt.base = env->gdt.base; |
844 | 05330448 | aliguori | |
845 | 05330448 | aliguori | sregs.cr0 = env->cr[0];
|
846 | 05330448 | aliguori | sregs.cr2 = env->cr[2];
|
847 | 05330448 | aliguori | sregs.cr3 = env->cr[3];
|
848 | 05330448 | aliguori | sregs.cr4 = env->cr[4];
|
849 | 05330448 | aliguori | |
850 | 4a942cea | Blue Swirl | sregs.cr8 = cpu_get_apic_tpr(env->apic_state); |
851 | 4a942cea | Blue Swirl | sregs.apic_base = cpu_get_apic_base(env->apic_state); |
852 | 05330448 | aliguori | |
853 | 05330448 | aliguori | sregs.efer = env->efer; |
854 | 05330448 | aliguori | |
855 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_SREGS, &sregs);
|
856 | 05330448 | aliguori | } |
857 | 05330448 | aliguori | |
858 | 05330448 | aliguori | static void kvm_msr_entry_set(struct kvm_msr_entry *entry, |
859 | 05330448 | aliguori | uint32_t index, uint64_t value) |
860 | 05330448 | aliguori | { |
861 | 05330448 | aliguori | entry->index = index; |
862 | 05330448 | aliguori | entry->data = value; |
863 | 05330448 | aliguori | } |
864 | 05330448 | aliguori | |
865 | ea643051 | Jan Kiszka | static int kvm_put_msrs(CPUState *env, int level) |
866 | 05330448 | aliguori | { |
867 | 05330448 | aliguori | struct {
|
868 | 05330448 | aliguori | struct kvm_msrs info;
|
869 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
870 | 05330448 | aliguori | } msr_data; |
871 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
872 | d8da8574 | Hidetoshi Seto | int n = 0; |
873 | 05330448 | aliguori | |
874 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_CS, env->sysenter_cs); |
875 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_ESP, env->sysenter_esp); |
876 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_EIP, env->sysenter_eip); |
877 | 0c03266a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_PAT, env->pat); |
878 | c3a3a7d3 | Jan Kiszka | if (has_msr_star) {
|
879 | b9bec74b | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_STAR, env->star); |
880 | b9bec74b | Jan Kiszka | } |
881 | c3a3a7d3 | Jan Kiszka | if (has_msr_hsave_pa) {
|
882 | 75b10c43 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_VM_HSAVE_PA, env->vm_hsave); |
883 | b9bec74b | Jan Kiszka | } |
884 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
885 | 25d2e361 | Marcelo Tosatti | if (lm_capable_kernel) {
|
886 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_CSTAR, env->cstar); |
887 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_KERNELGSBASE, env->kernelgsbase); |
888 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_FMASK, env->fmask); |
889 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_LSTAR, env->lstar); |
890 | 25d2e361 | Marcelo Tosatti | } |
891 | 05330448 | aliguori | #endif
|
892 | ea643051 | Jan Kiszka | if (level == KVM_PUT_FULL_STATE) {
|
893 | 384331a6 | Marcelo Tosatti | /*
|
894 | 384331a6 | Marcelo Tosatti | * KVM is yet unable to synchronize TSC values of multiple VCPUs on
|
895 | 384331a6 | Marcelo Tosatti | * writeback. Until this is fixed, we only write the offset to SMP
|
896 | 384331a6 | Marcelo Tosatti | * guests after migration, desynchronizing the VCPUs, but avoiding
|
897 | 384331a6 | Marcelo Tosatti | * huge jump-backs that would occur without any writeback at all.
|
898 | 384331a6 | Marcelo Tosatti | */
|
899 | 384331a6 | Marcelo Tosatti | if (smp_cpus == 1 || env->tsc != 0) { |
900 | 384331a6 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_IA32_TSC, env->tsc); |
901 | 384331a6 | Marcelo Tosatti | } |
902 | ff5c186b | Jan Kiszka | } |
903 | ff5c186b | Jan Kiszka | /*
|
904 | ff5c186b | Jan Kiszka | * The following paravirtual MSRs have side effects on the guest or are
|
905 | ff5c186b | Jan Kiszka | * too heavy for normal writeback. Limit them to reset or full state
|
906 | ff5c186b | Jan Kiszka | * updates.
|
907 | ff5c186b | Jan Kiszka | */
|
908 | ff5c186b | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
909 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_SYSTEM_TIME, |
910 | ea643051 | Jan Kiszka | env->system_time_msr); |
911 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_WALL_CLOCK, env->wall_clock_msr); |
912 | c5999bfc | Jan Kiszka | if (has_msr_async_pf_en) {
|
913 | c5999bfc | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_ASYNC_PF_EN, |
914 | c5999bfc | Jan Kiszka | env->async_pf_en_msr); |
915 | c5999bfc | Jan Kiszka | } |
916 | ea643051 | Jan Kiszka | } |
917 | 57780495 | Marcelo Tosatti | if (env->mcg_cap) {
|
918 | d8da8574 | Hidetoshi Seto | int i;
|
919 | b9bec74b | Jan Kiszka | |
920 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MCG_STATUS, env->mcg_status); |
921 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MCG_CTL, env->mcg_ctl); |
922 | c34d440a | Jan Kiszka | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
923 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MC0_CTL + i, env->mce_banks[i]); |
924 | 57780495 | Marcelo Tosatti | } |
925 | 57780495 | Marcelo Tosatti | } |
926 | 1a03675d | Glauber Costa | |
927 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
928 | 05330448 | aliguori | |
929 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_MSRS, &msr_data);
|
930 | 05330448 | aliguori | |
931 | 05330448 | aliguori | } |
932 | 05330448 | aliguori | |
933 | 05330448 | aliguori | |
934 | 05330448 | aliguori | static int kvm_get_fpu(CPUState *env) |
935 | 05330448 | aliguori | { |
936 | 05330448 | aliguori | struct kvm_fpu fpu;
|
937 | 05330448 | aliguori | int i, ret;
|
938 | 05330448 | aliguori | |
939 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_FPU, &fpu); |
940 | b9bec74b | Jan Kiszka | if (ret < 0) { |
941 | 05330448 | aliguori | return ret;
|
942 | b9bec74b | Jan Kiszka | } |
943 | 05330448 | aliguori | |
944 | 05330448 | aliguori | env->fpstt = (fpu.fsw >> 11) & 7; |
945 | 05330448 | aliguori | env->fpus = fpu.fsw; |
946 | 05330448 | aliguori | env->fpuc = fpu.fcw; |
947 | 42cc8fa6 | Jan Kiszka | env->fpop = fpu.last_opcode; |
948 | 42cc8fa6 | Jan Kiszka | env->fpip = fpu.last_ip; |
949 | 42cc8fa6 | Jan Kiszka | env->fpdp = fpu.last_dp; |
950 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
951 | b9bec74b | Jan Kiszka | env->fptags[i] = !((fpu.ftwx >> i) & 1);
|
952 | b9bec74b | Jan Kiszka | } |
953 | 05330448 | aliguori | memcpy(env->fpregs, fpu.fpr, sizeof env->fpregs);
|
954 | 05330448 | aliguori | memcpy(env->xmm_regs, fpu.xmm, sizeof env->xmm_regs);
|
955 | 05330448 | aliguori | env->mxcsr = fpu.mxcsr; |
956 | 05330448 | aliguori | |
957 | 05330448 | aliguori | return 0; |
958 | 05330448 | aliguori | } |
959 | 05330448 | aliguori | |
960 | f1665b21 | Sheng Yang | static int kvm_get_xsave(CPUState *env) |
961 | f1665b21 | Sheng Yang | { |
962 | f1665b21 | Sheng Yang | struct kvm_xsave* xsave;
|
963 | f1665b21 | Sheng Yang | int ret, i;
|
964 | 42cc8fa6 | Jan Kiszka | uint16_t cwd, swd, twd; |
965 | f1665b21 | Sheng Yang | |
966 | b9bec74b | Jan Kiszka | if (!kvm_has_xsave()) {
|
967 | f1665b21 | Sheng Yang | return kvm_get_fpu(env);
|
968 | b9bec74b | Jan Kiszka | } |
969 | f1665b21 | Sheng Yang | |
970 | f1665b21 | Sheng Yang | xsave = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
971 | f1665b21 | Sheng Yang | ret = kvm_vcpu_ioctl(env, KVM_GET_XSAVE, xsave); |
972 | 0f53994f | Marcelo Tosatti | if (ret < 0) { |
973 | 7267c094 | Anthony Liguori | g_free(xsave); |
974 | f1665b21 | Sheng Yang | return ret;
|
975 | 0f53994f | Marcelo Tosatti | } |
976 | f1665b21 | Sheng Yang | |
977 | f1665b21 | Sheng Yang | cwd = (uint16_t)xsave->region[0];
|
978 | f1665b21 | Sheng Yang | swd = (uint16_t)(xsave->region[0] >> 16); |
979 | f1665b21 | Sheng Yang | twd = (uint16_t)xsave->region[1];
|
980 | 42cc8fa6 | Jan Kiszka | env->fpop = (uint16_t)(xsave->region[1] >> 16); |
981 | f1665b21 | Sheng Yang | env->fpstt = (swd >> 11) & 7; |
982 | f1665b21 | Sheng Yang | env->fpus = swd; |
983 | f1665b21 | Sheng Yang | env->fpuc = cwd; |
984 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
985 | f1665b21 | Sheng Yang | env->fptags[i] = !((twd >> i) & 1);
|
986 | b9bec74b | Jan Kiszka | } |
987 | 42cc8fa6 | Jan Kiszka | memcpy(&env->fpip, &xsave->region[XSAVE_CWD_RIP], sizeof(env->fpip));
|
988 | 42cc8fa6 | Jan Kiszka | memcpy(&env->fpdp, &xsave->region[XSAVE_CWD_RDP], sizeof(env->fpdp));
|
989 | f1665b21 | Sheng Yang | env->mxcsr = xsave->region[XSAVE_MXCSR]; |
990 | f1665b21 | Sheng Yang | memcpy(env->fpregs, &xsave->region[XSAVE_ST_SPACE], |
991 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
992 | f1665b21 | Sheng Yang | memcpy(env->xmm_regs, &xsave->region[XSAVE_XMM_SPACE], |
993 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
994 | f1665b21 | Sheng Yang | env->xstate_bv = *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV]; |
995 | f1665b21 | Sheng Yang | memcpy(env->ymmh_regs, &xsave->region[XSAVE_YMMH_SPACE], |
996 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
997 | 7267c094 | Anthony Liguori | g_free(xsave); |
998 | f1665b21 | Sheng Yang | return 0; |
999 | f1665b21 | Sheng Yang | } |
1000 | f1665b21 | Sheng Yang | |
1001 | f1665b21 | Sheng Yang | static int kvm_get_xcrs(CPUState *env) |
1002 | f1665b21 | Sheng Yang | { |
1003 | f1665b21 | Sheng Yang | int i, ret;
|
1004 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
1005 | f1665b21 | Sheng Yang | |
1006 | b9bec74b | Jan Kiszka | if (!kvm_has_xcrs()) {
|
1007 | f1665b21 | Sheng Yang | return 0; |
1008 | b9bec74b | Jan Kiszka | } |
1009 | f1665b21 | Sheng Yang | |
1010 | f1665b21 | Sheng Yang | ret = kvm_vcpu_ioctl(env, KVM_GET_XCRS, &xcrs); |
1011 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1012 | f1665b21 | Sheng Yang | return ret;
|
1013 | b9bec74b | Jan Kiszka | } |
1014 | f1665b21 | Sheng Yang | |
1015 | b9bec74b | Jan Kiszka | for (i = 0; i < xcrs.nr_xcrs; i++) { |
1016 | f1665b21 | Sheng Yang | /* Only support xcr0 now */
|
1017 | f1665b21 | Sheng Yang | if (xcrs.xcrs[0].xcr == 0) { |
1018 | f1665b21 | Sheng Yang | env->xcr0 = xcrs.xcrs[0].value;
|
1019 | f1665b21 | Sheng Yang | break;
|
1020 | f1665b21 | Sheng Yang | } |
1021 | b9bec74b | Jan Kiszka | } |
1022 | f1665b21 | Sheng Yang | return 0; |
1023 | f1665b21 | Sheng Yang | } |
1024 | f1665b21 | Sheng Yang | |
1025 | 05330448 | aliguori | static int kvm_get_sregs(CPUState *env) |
1026 | 05330448 | aliguori | { |
1027 | 05330448 | aliguori | struct kvm_sregs sregs;
|
1028 | 05330448 | aliguori | uint32_t hflags; |
1029 | 0e607a80 | Jan Kiszka | int bit, i, ret;
|
1030 | 05330448 | aliguori | |
1031 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_SREGS, &sregs); |
1032 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1033 | 05330448 | aliguori | return ret;
|
1034 | b9bec74b | Jan Kiszka | } |
1035 | 05330448 | aliguori | |
1036 | 0e607a80 | Jan Kiszka | /* There can only be one pending IRQ set in the bitmap at a time, so try
|
1037 | 0e607a80 | Jan Kiszka | to find it and save its number instead (-1 for none). */
|
1038 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
1039 | 0e607a80 | Jan Kiszka | for (i = 0; i < ARRAY_SIZE(sregs.interrupt_bitmap); i++) { |
1040 | 0e607a80 | Jan Kiszka | if (sregs.interrupt_bitmap[i]) {
|
1041 | 0e607a80 | Jan Kiszka | bit = ctz64(sregs.interrupt_bitmap[i]); |
1042 | 0e607a80 | Jan Kiszka | env->interrupt_injected = i * 64 + bit;
|
1043 | 0e607a80 | Jan Kiszka | break;
|
1044 | 0e607a80 | Jan Kiszka | } |
1045 | 0e607a80 | Jan Kiszka | } |
1046 | 05330448 | aliguori | |
1047 | 05330448 | aliguori | get_seg(&env->segs[R_CS], &sregs.cs); |
1048 | 05330448 | aliguori | get_seg(&env->segs[R_DS], &sregs.ds); |
1049 | 05330448 | aliguori | get_seg(&env->segs[R_ES], &sregs.es); |
1050 | 05330448 | aliguori | get_seg(&env->segs[R_FS], &sregs.fs); |
1051 | 05330448 | aliguori | get_seg(&env->segs[R_GS], &sregs.gs); |
1052 | 05330448 | aliguori | get_seg(&env->segs[R_SS], &sregs.ss); |
1053 | 05330448 | aliguori | |
1054 | 05330448 | aliguori | get_seg(&env->tr, &sregs.tr); |
1055 | 05330448 | aliguori | get_seg(&env->ldt, &sregs.ldt); |
1056 | 05330448 | aliguori | |
1057 | 05330448 | aliguori | env->idt.limit = sregs.idt.limit; |
1058 | 05330448 | aliguori | env->idt.base = sregs.idt.base; |
1059 | 05330448 | aliguori | env->gdt.limit = sregs.gdt.limit; |
1060 | 05330448 | aliguori | env->gdt.base = sregs.gdt.base; |
1061 | 05330448 | aliguori | |
1062 | 05330448 | aliguori | env->cr[0] = sregs.cr0;
|
1063 | 05330448 | aliguori | env->cr[2] = sregs.cr2;
|
1064 | 05330448 | aliguori | env->cr[3] = sregs.cr3;
|
1065 | 05330448 | aliguori | env->cr[4] = sregs.cr4;
|
1066 | 05330448 | aliguori | |
1067 | 4a942cea | Blue Swirl | cpu_set_apic_base(env->apic_state, sregs.apic_base); |
1068 | 05330448 | aliguori | |
1069 | 05330448 | aliguori | env->efer = sregs.efer; |
1070 | 4a942cea | Blue Swirl | //cpu_set_apic_tpr(env->apic_state, sregs.cr8);
|
1071 | 05330448 | aliguori | |
1072 | b9bec74b | Jan Kiszka | #define HFLAG_COPY_MASK \
|
1073 | b9bec74b | Jan Kiszka | ~( HF_CPL_MASK | HF_PE_MASK | HF_MP_MASK | HF_EM_MASK | \ |
1074 | b9bec74b | Jan Kiszka | HF_TS_MASK | HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK | \ |
1075 | b9bec74b | Jan Kiszka | HF_OSFXSR_MASK | HF_LMA_MASK | HF_CS32_MASK | \ |
1076 | b9bec74b | Jan Kiszka | HF_SS32_MASK | HF_CS64_MASK | HF_ADDSEG_MASK) |
1077 | 05330448 | aliguori | |
1078 | 05330448 | aliguori | hflags = (env->segs[R_CS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK; |
1079 | 05330448 | aliguori | hflags |= (env->cr[0] & CR0_PE_MASK) << (HF_PE_SHIFT - CR0_PE_SHIFT);
|
1080 | 05330448 | aliguori | hflags |= (env->cr[0] << (HF_MP_SHIFT - CR0_MP_SHIFT)) &
|
1081 | b9bec74b | Jan Kiszka | (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK); |
1082 | 05330448 | aliguori | hflags |= (env->eflags & (HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK)); |
1083 | 05330448 | aliguori | hflags |= (env->cr[4] & CR4_OSFXSR_MASK) <<
|
1084 | b9bec74b | Jan Kiszka | (HF_OSFXSR_SHIFT - CR4_OSFXSR_SHIFT); |
1085 | 05330448 | aliguori | |
1086 | 05330448 | aliguori | if (env->efer & MSR_EFER_LMA) {
|
1087 | 05330448 | aliguori | hflags |= HF_LMA_MASK; |
1088 | 05330448 | aliguori | } |
1089 | 05330448 | aliguori | |
1090 | 05330448 | aliguori | if ((hflags & HF_LMA_MASK) && (env->segs[R_CS].flags & DESC_L_MASK)) {
|
1091 | 05330448 | aliguori | hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK; |
1092 | 05330448 | aliguori | } else {
|
1093 | 05330448 | aliguori | hflags |= (env->segs[R_CS].flags & DESC_B_MASK) >> |
1094 | b9bec74b | Jan Kiszka | (DESC_B_SHIFT - HF_CS32_SHIFT); |
1095 | 05330448 | aliguori | hflags |= (env->segs[R_SS].flags & DESC_B_MASK) >> |
1096 | b9bec74b | Jan Kiszka | (DESC_B_SHIFT - HF_SS32_SHIFT); |
1097 | b9bec74b | Jan Kiszka | if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK) || |
1098 | b9bec74b | Jan Kiszka | !(hflags & HF_CS32_MASK)) { |
1099 | b9bec74b | Jan Kiszka | hflags |= HF_ADDSEG_MASK; |
1100 | b9bec74b | Jan Kiszka | } else {
|
1101 | b9bec74b | Jan Kiszka | hflags |= ((env->segs[R_DS].base | env->segs[R_ES].base | |
1102 | b9bec74b | Jan Kiszka | env->segs[R_SS].base) != 0) << HF_ADDSEG_SHIFT;
|
1103 | b9bec74b | Jan Kiszka | } |
1104 | 05330448 | aliguori | } |
1105 | 05330448 | aliguori | env->hflags = (env->hflags & HFLAG_COPY_MASK) | hflags; |
1106 | 05330448 | aliguori | |
1107 | 05330448 | aliguori | return 0; |
1108 | 05330448 | aliguori | } |
1109 | 05330448 | aliguori | |
1110 | 05330448 | aliguori | static int kvm_get_msrs(CPUState *env) |
1111 | 05330448 | aliguori | { |
1112 | 05330448 | aliguori | struct {
|
1113 | 05330448 | aliguori | struct kvm_msrs info;
|
1114 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
1115 | 05330448 | aliguori | } msr_data; |
1116 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
1117 | 05330448 | aliguori | int ret, i, n;
|
1118 | 05330448 | aliguori | |
1119 | 05330448 | aliguori | n = 0;
|
1120 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_CS; |
1121 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_ESP; |
1122 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_EIP; |
1123 | 0c03266a | Jan Kiszka | msrs[n++].index = MSR_PAT; |
1124 | c3a3a7d3 | Jan Kiszka | if (has_msr_star) {
|
1125 | b9bec74b | Jan Kiszka | msrs[n++].index = MSR_STAR; |
1126 | b9bec74b | Jan Kiszka | } |
1127 | c3a3a7d3 | Jan Kiszka | if (has_msr_hsave_pa) {
|
1128 | 75b10c43 | Marcelo Tosatti | msrs[n++].index = MSR_VM_HSAVE_PA; |
1129 | b9bec74b | Jan Kiszka | } |
1130 | b8cc45d6 | Glauber Costa | |
1131 | b8cc45d6 | Glauber Costa | if (!env->tsc_valid) {
|
1132 | b8cc45d6 | Glauber Costa | msrs[n++].index = MSR_IA32_TSC; |
1133 | b8cc45d6 | Glauber Costa | env->tsc_valid = !vm_running; |
1134 | b8cc45d6 | Glauber Costa | } |
1135 | b8cc45d6 | Glauber Costa | |
1136 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
1137 | 25d2e361 | Marcelo Tosatti | if (lm_capable_kernel) {
|
1138 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_CSTAR; |
1139 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_KERNELGSBASE; |
1140 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_FMASK; |
1141 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_LSTAR; |
1142 | 25d2e361 | Marcelo Tosatti | } |
1143 | 05330448 | aliguori | #endif
|
1144 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_SYSTEM_TIME; |
1145 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_WALL_CLOCK; |
1146 | c5999bfc | Jan Kiszka | if (has_msr_async_pf_en) {
|
1147 | c5999bfc | Jan Kiszka | msrs[n++].index = MSR_KVM_ASYNC_PF_EN; |
1148 | c5999bfc | Jan Kiszka | } |
1149 | 1a03675d | Glauber Costa | |
1150 | 57780495 | Marcelo Tosatti | if (env->mcg_cap) {
|
1151 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MCG_STATUS; |
1152 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MCG_CTL; |
1153 | b9bec74b | Jan Kiszka | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
1154 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MC0_CTL + i; |
1155 | b9bec74b | Jan Kiszka | } |
1156 | 57780495 | Marcelo Tosatti | } |
1157 | 57780495 | Marcelo Tosatti | |
1158 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
1159 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_MSRS, &msr_data); |
1160 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1161 | 05330448 | aliguori | return ret;
|
1162 | b9bec74b | Jan Kiszka | } |
1163 | 05330448 | aliguori | |
1164 | 05330448 | aliguori | for (i = 0; i < ret; i++) { |
1165 | 05330448 | aliguori | switch (msrs[i].index) {
|
1166 | 05330448 | aliguori | case MSR_IA32_SYSENTER_CS:
|
1167 | 05330448 | aliguori | env->sysenter_cs = msrs[i].data; |
1168 | 05330448 | aliguori | break;
|
1169 | 05330448 | aliguori | case MSR_IA32_SYSENTER_ESP:
|
1170 | 05330448 | aliguori | env->sysenter_esp = msrs[i].data; |
1171 | 05330448 | aliguori | break;
|
1172 | 05330448 | aliguori | case MSR_IA32_SYSENTER_EIP:
|
1173 | 05330448 | aliguori | env->sysenter_eip = msrs[i].data; |
1174 | 05330448 | aliguori | break;
|
1175 | 0c03266a | Jan Kiszka | case MSR_PAT:
|
1176 | 0c03266a | Jan Kiszka | env->pat = msrs[i].data; |
1177 | 0c03266a | Jan Kiszka | break;
|
1178 | 05330448 | aliguori | case MSR_STAR:
|
1179 | 05330448 | aliguori | env->star = msrs[i].data; |
1180 | 05330448 | aliguori | break;
|
1181 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
1182 | 05330448 | aliguori | case MSR_CSTAR:
|
1183 | 05330448 | aliguori | env->cstar = msrs[i].data; |
1184 | 05330448 | aliguori | break;
|
1185 | 05330448 | aliguori | case MSR_KERNELGSBASE:
|
1186 | 05330448 | aliguori | env->kernelgsbase = msrs[i].data; |
1187 | 05330448 | aliguori | break;
|
1188 | 05330448 | aliguori | case MSR_FMASK:
|
1189 | 05330448 | aliguori | env->fmask = msrs[i].data; |
1190 | 05330448 | aliguori | break;
|
1191 | 05330448 | aliguori | case MSR_LSTAR:
|
1192 | 05330448 | aliguori | env->lstar = msrs[i].data; |
1193 | 05330448 | aliguori | break;
|
1194 | 05330448 | aliguori | #endif
|
1195 | 05330448 | aliguori | case MSR_IA32_TSC:
|
1196 | 05330448 | aliguori | env->tsc = msrs[i].data; |
1197 | 05330448 | aliguori | break;
|
1198 | aa851e36 | Marcelo Tosatti | case MSR_VM_HSAVE_PA:
|
1199 | aa851e36 | Marcelo Tosatti | env->vm_hsave = msrs[i].data; |
1200 | aa851e36 | Marcelo Tosatti | break;
|
1201 | 1a03675d | Glauber Costa | case MSR_KVM_SYSTEM_TIME:
|
1202 | 1a03675d | Glauber Costa | env->system_time_msr = msrs[i].data; |
1203 | 1a03675d | Glauber Costa | break;
|
1204 | 1a03675d | Glauber Costa | case MSR_KVM_WALL_CLOCK:
|
1205 | 1a03675d | Glauber Costa | env->wall_clock_msr = msrs[i].data; |
1206 | 1a03675d | Glauber Costa | break;
|
1207 | 57780495 | Marcelo Tosatti | case MSR_MCG_STATUS:
|
1208 | 57780495 | Marcelo Tosatti | env->mcg_status = msrs[i].data; |
1209 | 57780495 | Marcelo Tosatti | break;
|
1210 | 57780495 | Marcelo Tosatti | case MSR_MCG_CTL:
|
1211 | 57780495 | Marcelo Tosatti | env->mcg_ctl = msrs[i].data; |
1212 | 57780495 | Marcelo Tosatti | break;
|
1213 | 57780495 | Marcelo Tosatti | default:
|
1214 | 57780495 | Marcelo Tosatti | if (msrs[i].index >= MSR_MC0_CTL &&
|
1215 | 57780495 | Marcelo Tosatti | msrs[i].index < MSR_MC0_CTL + (env->mcg_cap & 0xff) * 4) { |
1216 | 57780495 | Marcelo Tosatti | env->mce_banks[msrs[i].index - MSR_MC0_CTL] = msrs[i].data; |
1217 | 57780495 | Marcelo Tosatti | } |
1218 | d8da8574 | Hidetoshi Seto | break;
|
1219 | f6584ee2 | Gleb Natapov | case MSR_KVM_ASYNC_PF_EN:
|
1220 | f6584ee2 | Gleb Natapov | env->async_pf_en_msr = msrs[i].data; |
1221 | f6584ee2 | Gleb Natapov | break;
|
1222 | 05330448 | aliguori | } |
1223 | 05330448 | aliguori | } |
1224 | 05330448 | aliguori | |
1225 | 05330448 | aliguori | return 0; |
1226 | 05330448 | aliguori | } |
1227 | 05330448 | aliguori | |
1228 | 9bdbe550 | Hollis Blanchard | static int kvm_put_mp_state(CPUState *env) |
1229 | 9bdbe550 | Hollis Blanchard | { |
1230 | 9bdbe550 | Hollis Blanchard | struct kvm_mp_state mp_state = { .mp_state = env->mp_state };
|
1231 | 9bdbe550 | Hollis Blanchard | |
1232 | 9bdbe550 | Hollis Blanchard | return kvm_vcpu_ioctl(env, KVM_SET_MP_STATE, &mp_state);
|
1233 | 9bdbe550 | Hollis Blanchard | } |
1234 | 9bdbe550 | Hollis Blanchard | |
1235 | 9bdbe550 | Hollis Blanchard | static int kvm_get_mp_state(CPUState *env) |
1236 | 9bdbe550 | Hollis Blanchard | { |
1237 | 9bdbe550 | Hollis Blanchard | struct kvm_mp_state mp_state;
|
1238 | 9bdbe550 | Hollis Blanchard | int ret;
|
1239 | 9bdbe550 | Hollis Blanchard | |
1240 | 9bdbe550 | Hollis Blanchard | ret = kvm_vcpu_ioctl(env, KVM_GET_MP_STATE, &mp_state); |
1241 | 9bdbe550 | Hollis Blanchard | if (ret < 0) { |
1242 | 9bdbe550 | Hollis Blanchard | return ret;
|
1243 | 9bdbe550 | Hollis Blanchard | } |
1244 | 9bdbe550 | Hollis Blanchard | env->mp_state = mp_state.mp_state; |
1245 | c14750e8 | Jan Kiszka | if (kvm_irqchip_in_kernel()) {
|
1246 | c14750e8 | Jan Kiszka | env->halted = (mp_state.mp_state == KVM_MP_STATE_HALTED); |
1247 | c14750e8 | Jan Kiszka | } |
1248 | 9bdbe550 | Hollis Blanchard | return 0; |
1249 | 9bdbe550 | Hollis Blanchard | } |
1250 | 9bdbe550 | Hollis Blanchard | |
1251 | ea643051 | Jan Kiszka | static int kvm_put_vcpu_events(CPUState *env, int level) |
1252 | a0fb002c | Jan Kiszka | { |
1253 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1254 | a0fb002c | Jan Kiszka | |
1255 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1256 | a0fb002c | Jan Kiszka | return 0; |
1257 | a0fb002c | Jan Kiszka | } |
1258 | a0fb002c | Jan Kiszka | |
1259 | 31827373 | Jan Kiszka | events.exception.injected = (env->exception_injected >= 0);
|
1260 | 31827373 | Jan Kiszka | events.exception.nr = env->exception_injected; |
1261 | a0fb002c | Jan Kiszka | events.exception.has_error_code = env->has_error_code; |
1262 | a0fb002c | Jan Kiszka | events.exception.error_code = env->error_code; |
1263 | a0fb002c | Jan Kiszka | |
1264 | a0fb002c | Jan Kiszka | events.interrupt.injected = (env->interrupt_injected >= 0);
|
1265 | a0fb002c | Jan Kiszka | events.interrupt.nr = env->interrupt_injected; |
1266 | a0fb002c | Jan Kiszka | events.interrupt.soft = env->soft_interrupt; |
1267 | a0fb002c | Jan Kiszka | |
1268 | a0fb002c | Jan Kiszka | events.nmi.injected = env->nmi_injected; |
1269 | a0fb002c | Jan Kiszka | events.nmi.pending = env->nmi_pending; |
1270 | a0fb002c | Jan Kiszka | events.nmi.masked = !!(env->hflags2 & HF2_NMI_MASK); |
1271 | a0fb002c | Jan Kiszka | |
1272 | a0fb002c | Jan Kiszka | events.sipi_vector = env->sipi_vector; |
1273 | a0fb002c | Jan Kiszka | |
1274 | ea643051 | Jan Kiszka | events.flags = 0;
|
1275 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1276 | ea643051 | Jan Kiszka | events.flags |= |
1277 | ea643051 | Jan Kiszka | KVM_VCPUEVENT_VALID_NMI_PENDING | KVM_VCPUEVENT_VALID_SIPI_VECTOR; |
1278 | ea643051 | Jan Kiszka | } |
1279 | aee028b9 | Jan Kiszka | |
1280 | a0fb002c | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_SET_VCPU_EVENTS, &events);
|
1281 | a0fb002c | Jan Kiszka | } |
1282 | a0fb002c | Jan Kiszka | |
1283 | a0fb002c | Jan Kiszka | static int kvm_get_vcpu_events(CPUState *env) |
1284 | a0fb002c | Jan Kiszka | { |
1285 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1286 | a0fb002c | Jan Kiszka | int ret;
|
1287 | a0fb002c | Jan Kiszka | |
1288 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1289 | a0fb002c | Jan Kiszka | return 0; |
1290 | a0fb002c | Jan Kiszka | } |
1291 | a0fb002c | Jan Kiszka | |
1292 | a0fb002c | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_GET_VCPU_EVENTS, &events); |
1293 | a0fb002c | Jan Kiszka | if (ret < 0) { |
1294 | a0fb002c | Jan Kiszka | return ret;
|
1295 | a0fb002c | Jan Kiszka | } |
1296 | 31827373 | Jan Kiszka | env->exception_injected = |
1297 | a0fb002c | Jan Kiszka | events.exception.injected ? events.exception.nr : -1;
|
1298 | a0fb002c | Jan Kiszka | env->has_error_code = events.exception.has_error_code; |
1299 | a0fb002c | Jan Kiszka | env->error_code = events.exception.error_code; |
1300 | a0fb002c | Jan Kiszka | |
1301 | a0fb002c | Jan Kiszka | env->interrupt_injected = |
1302 | a0fb002c | Jan Kiszka | events.interrupt.injected ? events.interrupt.nr : -1;
|
1303 | a0fb002c | Jan Kiszka | env->soft_interrupt = events.interrupt.soft; |
1304 | a0fb002c | Jan Kiszka | |
1305 | a0fb002c | Jan Kiszka | env->nmi_injected = events.nmi.injected; |
1306 | a0fb002c | Jan Kiszka | env->nmi_pending = events.nmi.pending; |
1307 | a0fb002c | Jan Kiszka | if (events.nmi.masked) {
|
1308 | a0fb002c | Jan Kiszka | env->hflags2 |= HF2_NMI_MASK; |
1309 | a0fb002c | Jan Kiszka | } else {
|
1310 | a0fb002c | Jan Kiszka | env->hflags2 &= ~HF2_NMI_MASK; |
1311 | a0fb002c | Jan Kiszka | } |
1312 | a0fb002c | Jan Kiszka | |
1313 | a0fb002c | Jan Kiszka | env->sipi_vector = events.sipi_vector; |
1314 | a0fb002c | Jan Kiszka | |
1315 | a0fb002c | Jan Kiszka | return 0; |
1316 | a0fb002c | Jan Kiszka | } |
1317 | a0fb002c | Jan Kiszka | |
1318 | b0b1d690 | Jan Kiszka | static int kvm_guest_debug_workarounds(CPUState *env) |
1319 | b0b1d690 | Jan Kiszka | { |
1320 | b0b1d690 | Jan Kiszka | int ret = 0; |
1321 | b0b1d690 | Jan Kiszka | unsigned long reinject_trap = 0; |
1322 | b0b1d690 | Jan Kiszka | |
1323 | b0b1d690 | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1324 | b0b1d690 | Jan Kiszka | if (env->exception_injected == 1) { |
1325 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_DB; |
1326 | b0b1d690 | Jan Kiszka | } else if (env->exception_injected == 3) { |
1327 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_BP; |
1328 | b0b1d690 | Jan Kiszka | } |
1329 | b0b1d690 | Jan Kiszka | env->exception_injected = -1;
|
1330 | b0b1d690 | Jan Kiszka | } |
1331 | b0b1d690 | Jan Kiszka | |
1332 | b0b1d690 | Jan Kiszka | /*
|
1333 | b0b1d690 | Jan Kiszka | * Kernels before KVM_CAP_X86_ROBUST_SINGLESTEP overwrote flags.TF
|
1334 | b0b1d690 | Jan Kiszka | * injected via SET_GUEST_DEBUG while updating GP regs. Work around this
|
1335 | b0b1d690 | Jan Kiszka | * by updating the debug state once again if single-stepping is on.
|
1336 | b0b1d690 | Jan Kiszka | * Another reason to call kvm_update_guest_debug here is a pending debug
|
1337 | b0b1d690 | Jan Kiszka | * trap raise by the guest. On kernels without SET_VCPU_EVENTS we have to
|
1338 | b0b1d690 | Jan Kiszka | * reinject them via SET_GUEST_DEBUG.
|
1339 | b0b1d690 | Jan Kiszka | */
|
1340 | b0b1d690 | Jan Kiszka | if (reinject_trap ||
|
1341 | b0b1d690 | Jan Kiszka | (!kvm_has_robust_singlestep() && env->singlestep_enabled)) { |
1342 | b0b1d690 | Jan Kiszka | ret = kvm_update_guest_debug(env, reinject_trap); |
1343 | b0b1d690 | Jan Kiszka | } |
1344 | b0b1d690 | Jan Kiszka | return ret;
|
1345 | b0b1d690 | Jan Kiszka | } |
1346 | b0b1d690 | Jan Kiszka | |
1347 | ff44f1a3 | Jan Kiszka | static int kvm_put_debugregs(CPUState *env) |
1348 | ff44f1a3 | Jan Kiszka | { |
1349 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1350 | ff44f1a3 | Jan Kiszka | int i;
|
1351 | ff44f1a3 | Jan Kiszka | |
1352 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1353 | ff44f1a3 | Jan Kiszka | return 0; |
1354 | ff44f1a3 | Jan Kiszka | } |
1355 | ff44f1a3 | Jan Kiszka | |
1356 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1357 | ff44f1a3 | Jan Kiszka | dbgregs.db[i] = env->dr[i]; |
1358 | ff44f1a3 | Jan Kiszka | } |
1359 | ff44f1a3 | Jan Kiszka | dbgregs.dr6 = env->dr[6];
|
1360 | ff44f1a3 | Jan Kiszka | dbgregs.dr7 = env->dr[7];
|
1361 | ff44f1a3 | Jan Kiszka | dbgregs.flags = 0;
|
1362 | ff44f1a3 | Jan Kiszka | |
1363 | ff44f1a3 | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_SET_DEBUGREGS, &dbgregs);
|
1364 | ff44f1a3 | Jan Kiszka | } |
1365 | ff44f1a3 | Jan Kiszka | |
1366 | ff44f1a3 | Jan Kiszka | static int kvm_get_debugregs(CPUState *env) |
1367 | ff44f1a3 | Jan Kiszka | { |
1368 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1369 | ff44f1a3 | Jan Kiszka | int i, ret;
|
1370 | ff44f1a3 | Jan Kiszka | |
1371 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1372 | ff44f1a3 | Jan Kiszka | return 0; |
1373 | ff44f1a3 | Jan Kiszka | } |
1374 | ff44f1a3 | Jan Kiszka | |
1375 | ff44f1a3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_GET_DEBUGREGS, &dbgregs); |
1376 | ff44f1a3 | Jan Kiszka | if (ret < 0) { |
1377 | b9bec74b | Jan Kiszka | return ret;
|
1378 | ff44f1a3 | Jan Kiszka | } |
1379 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1380 | ff44f1a3 | Jan Kiszka | env->dr[i] = dbgregs.db[i]; |
1381 | ff44f1a3 | Jan Kiszka | } |
1382 | ff44f1a3 | Jan Kiszka | env->dr[4] = env->dr[6] = dbgregs.dr6; |
1383 | ff44f1a3 | Jan Kiszka | env->dr[5] = env->dr[7] = dbgregs.dr7; |
1384 | ff44f1a3 | Jan Kiszka | |
1385 | ff44f1a3 | Jan Kiszka | return 0; |
1386 | ff44f1a3 | Jan Kiszka | } |
1387 | ff44f1a3 | Jan Kiszka | |
1388 | ea375f9a | Jan Kiszka | int kvm_arch_put_registers(CPUState *env, int level) |
1389 | 05330448 | aliguori | { |
1390 | 05330448 | aliguori | int ret;
|
1391 | 05330448 | aliguori | |
1392 | b7680cb6 | Jan Kiszka | assert(cpu_is_stopped(env) || qemu_cpu_is_self(env)); |
1393 | dbaa07c4 | Jan Kiszka | |
1394 | 05330448 | aliguori | ret = kvm_getput_regs(env, 1);
|
1395 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1396 | 05330448 | aliguori | return ret;
|
1397 | b9bec74b | Jan Kiszka | } |
1398 | f1665b21 | Sheng Yang | ret = kvm_put_xsave(env); |
1399 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1400 | f1665b21 | Sheng Yang | return ret;
|
1401 | b9bec74b | Jan Kiszka | } |
1402 | f1665b21 | Sheng Yang | ret = kvm_put_xcrs(env); |
1403 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1404 | 05330448 | aliguori | return ret;
|
1405 | b9bec74b | Jan Kiszka | } |
1406 | 05330448 | aliguori | ret = kvm_put_sregs(env); |
1407 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1408 | 05330448 | aliguori | return ret;
|
1409 | b9bec74b | Jan Kiszka | } |
1410 | ab443475 | Jan Kiszka | /* must be before kvm_put_msrs */
|
1411 | ab443475 | Jan Kiszka | ret = kvm_inject_mce_oldstyle(env); |
1412 | ab443475 | Jan Kiszka | if (ret < 0) { |
1413 | ab443475 | Jan Kiszka | return ret;
|
1414 | ab443475 | Jan Kiszka | } |
1415 | ea643051 | Jan Kiszka | ret = kvm_put_msrs(env, level); |
1416 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1417 | 05330448 | aliguori | return ret;
|
1418 | b9bec74b | Jan Kiszka | } |
1419 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1420 | ea643051 | Jan Kiszka | ret = kvm_put_mp_state(env); |
1421 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1422 | ea643051 | Jan Kiszka | return ret;
|
1423 | b9bec74b | Jan Kiszka | } |
1424 | ea643051 | Jan Kiszka | } |
1425 | ea643051 | Jan Kiszka | ret = kvm_put_vcpu_events(env, level); |
1426 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1427 | a0fb002c | Jan Kiszka | return ret;
|
1428 | b9bec74b | Jan Kiszka | } |
1429 | 0d75a9ec | Jan Kiszka | ret = kvm_put_debugregs(env); |
1430 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1431 | b0b1d690 | Jan Kiszka | return ret;
|
1432 | b9bec74b | Jan Kiszka | } |
1433 | b0b1d690 | Jan Kiszka | /* must be last */
|
1434 | b0b1d690 | Jan Kiszka | ret = kvm_guest_debug_workarounds(env); |
1435 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1436 | ff44f1a3 | Jan Kiszka | return ret;
|
1437 | b9bec74b | Jan Kiszka | } |
1438 | 05330448 | aliguori | return 0; |
1439 | 05330448 | aliguori | } |
1440 | 05330448 | aliguori | |
1441 | 05330448 | aliguori | int kvm_arch_get_registers(CPUState *env)
|
1442 | 05330448 | aliguori | { |
1443 | 05330448 | aliguori | int ret;
|
1444 | 05330448 | aliguori | |
1445 | b7680cb6 | Jan Kiszka | assert(cpu_is_stopped(env) || qemu_cpu_is_self(env)); |
1446 | dbaa07c4 | Jan Kiszka | |
1447 | 05330448 | aliguori | ret = kvm_getput_regs(env, 0);
|
1448 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1449 | 05330448 | aliguori | return ret;
|
1450 | b9bec74b | Jan Kiszka | } |
1451 | f1665b21 | Sheng Yang | ret = kvm_get_xsave(env); |
1452 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1453 | f1665b21 | Sheng Yang | return ret;
|
1454 | b9bec74b | Jan Kiszka | } |
1455 | f1665b21 | Sheng Yang | ret = kvm_get_xcrs(env); |
1456 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1457 | 05330448 | aliguori | return ret;
|
1458 | b9bec74b | Jan Kiszka | } |
1459 | 05330448 | aliguori | ret = kvm_get_sregs(env); |
1460 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1461 | 05330448 | aliguori | return ret;
|
1462 | b9bec74b | Jan Kiszka | } |
1463 | 05330448 | aliguori | ret = kvm_get_msrs(env); |
1464 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1465 | 05330448 | aliguori | return ret;
|
1466 | b9bec74b | Jan Kiszka | } |
1467 | 5a2e3c2e | Jan Kiszka | ret = kvm_get_mp_state(env); |
1468 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1469 | 5a2e3c2e | Jan Kiszka | return ret;
|
1470 | b9bec74b | Jan Kiszka | } |
1471 | a0fb002c | Jan Kiszka | ret = kvm_get_vcpu_events(env); |
1472 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1473 | a0fb002c | Jan Kiszka | return ret;
|
1474 | b9bec74b | Jan Kiszka | } |
1475 | ff44f1a3 | Jan Kiszka | ret = kvm_get_debugregs(env); |
1476 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1477 | ff44f1a3 | Jan Kiszka | return ret;
|
1478 | b9bec74b | Jan Kiszka | } |
1479 | 05330448 | aliguori | return 0; |
1480 | 05330448 | aliguori | } |
1481 | 05330448 | aliguori | |
1482 | 7a39fe58 | Jan Kiszka | void kvm_arch_pre_run(CPUState *env, struct kvm_run *run) |
1483 | 05330448 | aliguori | { |
1484 | ce377af3 | Jan Kiszka | int ret;
|
1485 | ce377af3 | Jan Kiszka | |
1486 | 276ce815 | Lai Jiangshan | /* Inject NMI */
|
1487 | 276ce815 | Lai Jiangshan | if (env->interrupt_request & CPU_INTERRUPT_NMI) {
|
1488 | 276ce815 | Lai Jiangshan | env->interrupt_request &= ~CPU_INTERRUPT_NMI; |
1489 | 276ce815 | Lai Jiangshan | DPRINTF("injected NMI\n");
|
1490 | ce377af3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_NMI); |
1491 | ce377af3 | Jan Kiszka | if (ret < 0) { |
1492 | ce377af3 | Jan Kiszka | fprintf(stderr, "KVM: injection failed, NMI lost (%s)\n",
|
1493 | ce377af3 | Jan Kiszka | strerror(-ret)); |
1494 | ce377af3 | Jan Kiszka | } |
1495 | 276ce815 | Lai Jiangshan | } |
1496 | 276ce815 | Lai Jiangshan | |
1497 | db1669bc | Jan Kiszka | if (!kvm_irqchip_in_kernel()) {
|
1498 | db1669bc | Jan Kiszka | /* Force the VCPU out of its inner loop to process the INIT request */
|
1499 | db1669bc | Jan Kiszka | if (env->interrupt_request & CPU_INTERRUPT_INIT) {
|
1500 | db1669bc | Jan Kiszka | env->exit_request = 1;
|
1501 | 05330448 | aliguori | } |
1502 | 05330448 | aliguori | |
1503 | db1669bc | Jan Kiszka | /* Try to inject an interrupt if the guest can accept it */
|
1504 | db1669bc | Jan Kiszka | if (run->ready_for_interrupt_injection &&
|
1505 | db1669bc | Jan Kiszka | (env->interrupt_request & CPU_INTERRUPT_HARD) && |
1506 | db1669bc | Jan Kiszka | (env->eflags & IF_MASK)) { |
1507 | db1669bc | Jan Kiszka | int irq;
|
1508 | db1669bc | Jan Kiszka | |
1509 | db1669bc | Jan Kiszka | env->interrupt_request &= ~CPU_INTERRUPT_HARD; |
1510 | db1669bc | Jan Kiszka | irq = cpu_get_pic_interrupt(env); |
1511 | db1669bc | Jan Kiszka | if (irq >= 0) { |
1512 | db1669bc | Jan Kiszka | struct kvm_interrupt intr;
|
1513 | db1669bc | Jan Kiszka | |
1514 | db1669bc | Jan Kiszka | intr.irq = irq; |
1515 | db1669bc | Jan Kiszka | DPRINTF("injected interrupt %d\n", irq);
|
1516 | ce377af3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_INTERRUPT, &intr); |
1517 | ce377af3 | Jan Kiszka | if (ret < 0) { |
1518 | ce377af3 | Jan Kiszka | fprintf(stderr, |
1519 | ce377af3 | Jan Kiszka | "KVM: injection failed, interrupt lost (%s)\n",
|
1520 | ce377af3 | Jan Kiszka | strerror(-ret)); |
1521 | ce377af3 | Jan Kiszka | } |
1522 | db1669bc | Jan Kiszka | } |
1523 | db1669bc | Jan Kiszka | } |
1524 | 05330448 | aliguori | |
1525 | db1669bc | Jan Kiszka | /* If we have an interrupt but the guest is not ready to receive an
|
1526 | db1669bc | Jan Kiszka | * interrupt, request an interrupt window exit. This will
|
1527 | db1669bc | Jan Kiszka | * cause a return to userspace as soon as the guest is ready to
|
1528 | db1669bc | Jan Kiszka | * receive interrupts. */
|
1529 | db1669bc | Jan Kiszka | if ((env->interrupt_request & CPU_INTERRUPT_HARD)) {
|
1530 | db1669bc | Jan Kiszka | run->request_interrupt_window = 1;
|
1531 | db1669bc | Jan Kiszka | } else {
|
1532 | db1669bc | Jan Kiszka | run->request_interrupt_window = 0;
|
1533 | db1669bc | Jan Kiszka | } |
1534 | db1669bc | Jan Kiszka | |
1535 | db1669bc | Jan Kiszka | DPRINTF("setting tpr\n");
|
1536 | db1669bc | Jan Kiszka | run->cr8 = cpu_get_apic_tpr(env->apic_state); |
1537 | db1669bc | Jan Kiszka | } |
1538 | 05330448 | aliguori | } |
1539 | 05330448 | aliguori | |
1540 | 7a39fe58 | Jan Kiszka | void kvm_arch_post_run(CPUState *env, struct kvm_run *run) |
1541 | 05330448 | aliguori | { |
1542 | b9bec74b | Jan Kiszka | if (run->if_flag) {
|
1543 | 05330448 | aliguori | env->eflags |= IF_MASK; |
1544 | b9bec74b | Jan Kiszka | } else {
|
1545 | 05330448 | aliguori | env->eflags &= ~IF_MASK; |
1546 | b9bec74b | Jan Kiszka | } |
1547 | 4a942cea | Blue Swirl | cpu_set_apic_tpr(env->apic_state, run->cr8); |
1548 | 4a942cea | Blue Swirl | cpu_set_apic_base(env->apic_state, run->apic_base); |
1549 | 05330448 | aliguori | } |
1550 | 05330448 | aliguori | |
1551 | 99036865 | Jan Kiszka | int kvm_arch_process_async_events(CPUState *env)
|
1552 | 0af691d7 | Marcelo Tosatti | { |
1553 | ab443475 | Jan Kiszka | if (env->interrupt_request & CPU_INTERRUPT_MCE) {
|
1554 | ab443475 | Jan Kiszka | /* We must not raise CPU_INTERRUPT_MCE if it's not supported. */
|
1555 | ab443475 | Jan Kiszka | assert(env->mcg_cap); |
1556 | ab443475 | Jan Kiszka | |
1557 | ab443475 | Jan Kiszka | env->interrupt_request &= ~CPU_INTERRUPT_MCE; |
1558 | ab443475 | Jan Kiszka | |
1559 | ab443475 | Jan Kiszka | kvm_cpu_synchronize_state(env); |
1560 | ab443475 | Jan Kiszka | |
1561 | ab443475 | Jan Kiszka | if (env->exception_injected == EXCP08_DBLE) {
|
1562 | ab443475 | Jan Kiszka | /* this means triple fault */
|
1563 | ab443475 | Jan Kiszka | qemu_system_reset_request(); |
1564 | ab443475 | Jan Kiszka | env->exit_request = 1;
|
1565 | ab443475 | Jan Kiszka | return 0; |
1566 | ab443475 | Jan Kiszka | } |
1567 | ab443475 | Jan Kiszka | env->exception_injected = EXCP12_MCHK; |
1568 | ab443475 | Jan Kiszka | env->has_error_code = 0;
|
1569 | ab443475 | Jan Kiszka | |
1570 | ab443475 | Jan Kiszka | env->halted = 0;
|
1571 | ab443475 | Jan Kiszka | if (kvm_irqchip_in_kernel() && env->mp_state == KVM_MP_STATE_HALTED) {
|
1572 | ab443475 | Jan Kiszka | env->mp_state = KVM_MP_STATE_RUNNABLE; |
1573 | ab443475 | Jan Kiszka | } |
1574 | ab443475 | Jan Kiszka | } |
1575 | ab443475 | Jan Kiszka | |
1576 | db1669bc | Jan Kiszka | if (kvm_irqchip_in_kernel()) {
|
1577 | db1669bc | Jan Kiszka | return 0; |
1578 | db1669bc | Jan Kiszka | } |
1579 | db1669bc | Jan Kiszka | |
1580 | 4601f7b0 | Jan Kiszka | if (((env->interrupt_request & CPU_INTERRUPT_HARD) &&
|
1581 | 4601f7b0 | Jan Kiszka | (env->eflags & IF_MASK)) || |
1582 | 4601f7b0 | Jan Kiszka | (env->interrupt_request & CPU_INTERRUPT_NMI)) { |
1583 | 6792a57b | Jan Kiszka | env->halted = 0;
|
1584 | 6792a57b | Jan Kiszka | } |
1585 | 0af691d7 | Marcelo Tosatti | if (env->interrupt_request & CPU_INTERRUPT_INIT) {
|
1586 | 0af691d7 | Marcelo Tosatti | kvm_cpu_synchronize_state(env); |
1587 | 0af691d7 | Marcelo Tosatti | do_cpu_init(env); |
1588 | 0af691d7 | Marcelo Tosatti | } |
1589 | 0af691d7 | Marcelo Tosatti | if (env->interrupt_request & CPU_INTERRUPT_SIPI) {
|
1590 | 0af691d7 | Marcelo Tosatti | kvm_cpu_synchronize_state(env); |
1591 | 0af691d7 | Marcelo Tosatti | do_cpu_sipi(env); |
1592 | 0af691d7 | Marcelo Tosatti | } |
1593 | 0af691d7 | Marcelo Tosatti | |
1594 | 0af691d7 | Marcelo Tosatti | return env->halted;
|
1595 | 0af691d7 | Marcelo Tosatti | } |
1596 | 0af691d7 | Marcelo Tosatti | |
1597 | 05330448 | aliguori | static int kvm_handle_halt(CPUState *env) |
1598 | 05330448 | aliguori | { |
1599 | 05330448 | aliguori | if (!((env->interrupt_request & CPU_INTERRUPT_HARD) &&
|
1600 | 05330448 | aliguori | (env->eflags & IF_MASK)) && |
1601 | 05330448 | aliguori | !(env->interrupt_request & CPU_INTERRUPT_NMI)) { |
1602 | 05330448 | aliguori | env->halted = 1;
|
1603 | bb4ea393 | Jan Kiszka | return EXCP_HLT;
|
1604 | 05330448 | aliguori | } |
1605 | 05330448 | aliguori | |
1606 | bb4ea393 | Jan Kiszka | return 0; |
1607 | 05330448 | aliguori | } |
1608 | 05330448 | aliguori | |
1609 | e22a25c9 | aliguori | int kvm_arch_insert_sw_breakpoint(CPUState *env, struct kvm_sw_breakpoint *bp) |
1610 | e22a25c9 | aliguori | { |
1611 | 38972938 | Juan Quintela | static const uint8_t int3 = 0xcc; |
1612 | 64bf3f4e | aliguori | |
1613 | e22a25c9 | aliguori | if (cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&bp->saved_insn, 1, 0) || |
1614 | b9bec74b | Jan Kiszka | cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&int3, 1, 1)) { |
1615 | e22a25c9 | aliguori | return -EINVAL;
|
1616 | b9bec74b | Jan Kiszka | } |
1617 | e22a25c9 | aliguori | return 0; |
1618 | e22a25c9 | aliguori | } |
1619 | e22a25c9 | aliguori | |
1620 | e22a25c9 | aliguori | int kvm_arch_remove_sw_breakpoint(CPUState *env, struct kvm_sw_breakpoint *bp) |
1621 | e22a25c9 | aliguori | { |
1622 | e22a25c9 | aliguori | uint8_t int3; |
1623 | e22a25c9 | aliguori | |
1624 | e22a25c9 | aliguori | if (cpu_memory_rw_debug(env, bp->pc, &int3, 1, 0) || int3 != 0xcc || |
1625 | b9bec74b | Jan Kiszka | cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&bp->saved_insn, 1, 1)) { |
1626 | e22a25c9 | aliguori | return -EINVAL;
|
1627 | b9bec74b | Jan Kiszka | } |
1628 | e22a25c9 | aliguori | return 0; |
1629 | e22a25c9 | aliguori | } |
1630 | e22a25c9 | aliguori | |
1631 | e22a25c9 | aliguori | static struct { |
1632 | e22a25c9 | aliguori | target_ulong addr; |
1633 | e22a25c9 | aliguori | int len;
|
1634 | e22a25c9 | aliguori | int type;
|
1635 | e22a25c9 | aliguori | } hw_breakpoint[4];
|
1636 | e22a25c9 | aliguori | |
1637 | e22a25c9 | aliguori | static int nb_hw_breakpoint; |
1638 | e22a25c9 | aliguori | |
1639 | e22a25c9 | aliguori | static int find_hw_breakpoint(target_ulong addr, int len, int type) |
1640 | e22a25c9 | aliguori | { |
1641 | e22a25c9 | aliguori | int n;
|
1642 | e22a25c9 | aliguori | |
1643 | b9bec74b | Jan Kiszka | for (n = 0; n < nb_hw_breakpoint; n++) { |
1644 | e22a25c9 | aliguori | if (hw_breakpoint[n].addr == addr && hw_breakpoint[n].type == type &&
|
1645 | b9bec74b | Jan Kiszka | (hw_breakpoint[n].len == len || len == -1)) {
|
1646 | e22a25c9 | aliguori | return n;
|
1647 | b9bec74b | Jan Kiszka | } |
1648 | b9bec74b | Jan Kiszka | } |
1649 | e22a25c9 | aliguori | return -1; |
1650 | e22a25c9 | aliguori | } |
1651 | e22a25c9 | aliguori | |
1652 | e22a25c9 | aliguori | int kvm_arch_insert_hw_breakpoint(target_ulong addr,
|
1653 | e22a25c9 | aliguori | target_ulong len, int type)
|
1654 | e22a25c9 | aliguori | { |
1655 | e22a25c9 | aliguori | switch (type) {
|
1656 | e22a25c9 | aliguori | case GDB_BREAKPOINT_HW:
|
1657 | e22a25c9 | aliguori | len = 1;
|
1658 | e22a25c9 | aliguori | break;
|
1659 | e22a25c9 | aliguori | case GDB_WATCHPOINT_WRITE:
|
1660 | e22a25c9 | aliguori | case GDB_WATCHPOINT_ACCESS:
|
1661 | e22a25c9 | aliguori | switch (len) {
|
1662 | e22a25c9 | aliguori | case 1: |
1663 | e22a25c9 | aliguori | break;
|
1664 | e22a25c9 | aliguori | case 2: |
1665 | e22a25c9 | aliguori | case 4: |
1666 | e22a25c9 | aliguori | case 8: |
1667 | b9bec74b | Jan Kiszka | if (addr & (len - 1)) { |
1668 | e22a25c9 | aliguori | return -EINVAL;
|
1669 | b9bec74b | Jan Kiszka | } |
1670 | e22a25c9 | aliguori | break;
|
1671 | e22a25c9 | aliguori | default:
|
1672 | e22a25c9 | aliguori | return -EINVAL;
|
1673 | e22a25c9 | aliguori | } |
1674 | e22a25c9 | aliguori | break;
|
1675 | e22a25c9 | aliguori | default:
|
1676 | e22a25c9 | aliguori | return -ENOSYS;
|
1677 | e22a25c9 | aliguori | } |
1678 | e22a25c9 | aliguori | |
1679 | b9bec74b | Jan Kiszka | if (nb_hw_breakpoint == 4) { |
1680 | e22a25c9 | aliguori | return -ENOBUFS;
|
1681 | b9bec74b | Jan Kiszka | } |
1682 | b9bec74b | Jan Kiszka | if (find_hw_breakpoint(addr, len, type) >= 0) { |
1683 | e22a25c9 | aliguori | return -EEXIST;
|
1684 | b9bec74b | Jan Kiszka | } |
1685 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].addr = addr; |
1686 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].len = len; |
1687 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].type = type; |
1688 | e22a25c9 | aliguori | nb_hw_breakpoint++; |
1689 | e22a25c9 | aliguori | |
1690 | e22a25c9 | aliguori | return 0; |
1691 | e22a25c9 | aliguori | } |
1692 | e22a25c9 | aliguori | |
1693 | e22a25c9 | aliguori | int kvm_arch_remove_hw_breakpoint(target_ulong addr,
|
1694 | e22a25c9 | aliguori | target_ulong len, int type)
|
1695 | e22a25c9 | aliguori | { |
1696 | e22a25c9 | aliguori | int n;
|
1697 | e22a25c9 | aliguori | |
1698 | e22a25c9 | aliguori | n = find_hw_breakpoint(addr, (type == GDB_BREAKPOINT_HW) ? 1 : len, type);
|
1699 | b9bec74b | Jan Kiszka | if (n < 0) { |
1700 | e22a25c9 | aliguori | return -ENOENT;
|
1701 | b9bec74b | Jan Kiszka | } |
1702 | e22a25c9 | aliguori | nb_hw_breakpoint--; |
1703 | e22a25c9 | aliguori | hw_breakpoint[n] = hw_breakpoint[nb_hw_breakpoint]; |
1704 | e22a25c9 | aliguori | |
1705 | e22a25c9 | aliguori | return 0; |
1706 | e22a25c9 | aliguori | } |
1707 | e22a25c9 | aliguori | |
1708 | e22a25c9 | aliguori | void kvm_arch_remove_all_hw_breakpoints(void) |
1709 | e22a25c9 | aliguori | { |
1710 | e22a25c9 | aliguori | nb_hw_breakpoint = 0;
|
1711 | e22a25c9 | aliguori | } |
1712 | e22a25c9 | aliguori | |
1713 | e22a25c9 | aliguori | static CPUWatchpoint hw_watchpoint;
|
1714 | e22a25c9 | aliguori | |
1715 | f2574737 | Jan Kiszka | static int kvm_handle_debug(struct kvm_debug_exit_arch *arch_info) |
1716 | e22a25c9 | aliguori | { |
1717 | f2574737 | Jan Kiszka | int ret = 0; |
1718 | e22a25c9 | aliguori | int n;
|
1719 | e22a25c9 | aliguori | |
1720 | e22a25c9 | aliguori | if (arch_info->exception == 1) { |
1721 | e22a25c9 | aliguori | if (arch_info->dr6 & (1 << 14)) { |
1722 | b9bec74b | Jan Kiszka | if (cpu_single_env->singlestep_enabled) {
|
1723 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1724 | b9bec74b | Jan Kiszka | } |
1725 | e22a25c9 | aliguori | } else {
|
1726 | b9bec74b | Jan Kiszka | for (n = 0; n < 4; n++) { |
1727 | b9bec74b | Jan Kiszka | if (arch_info->dr6 & (1 << n)) { |
1728 | e22a25c9 | aliguori | switch ((arch_info->dr7 >> (16 + n*4)) & 0x3) { |
1729 | e22a25c9 | aliguori | case 0x0: |
1730 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1731 | e22a25c9 | aliguori | break;
|
1732 | e22a25c9 | aliguori | case 0x1: |
1733 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1734 | e22a25c9 | aliguori | cpu_single_env->watchpoint_hit = &hw_watchpoint; |
1735 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
1736 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_WRITE; |
1737 | e22a25c9 | aliguori | break;
|
1738 | e22a25c9 | aliguori | case 0x3: |
1739 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1740 | e22a25c9 | aliguori | cpu_single_env->watchpoint_hit = &hw_watchpoint; |
1741 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
1742 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_ACCESS; |
1743 | e22a25c9 | aliguori | break;
|
1744 | e22a25c9 | aliguori | } |
1745 | b9bec74b | Jan Kiszka | } |
1746 | b9bec74b | Jan Kiszka | } |
1747 | e22a25c9 | aliguori | } |
1748 | b9bec74b | Jan Kiszka | } else if (kvm_find_sw_breakpoint(cpu_single_env, arch_info->pc)) { |
1749 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
1750 | b9bec74b | Jan Kiszka | } |
1751 | f2574737 | Jan Kiszka | if (ret == 0) { |
1752 | b0b1d690 | Jan Kiszka | cpu_synchronize_state(cpu_single_env); |
1753 | b0b1d690 | Jan Kiszka | assert(cpu_single_env->exception_injected == -1);
|
1754 | b0b1d690 | Jan Kiszka | |
1755 | f2574737 | Jan Kiszka | /* pass to guest */
|
1756 | b0b1d690 | Jan Kiszka | cpu_single_env->exception_injected = arch_info->exception; |
1757 | b0b1d690 | Jan Kiszka | cpu_single_env->has_error_code = 0;
|
1758 | b0b1d690 | Jan Kiszka | } |
1759 | e22a25c9 | aliguori | |
1760 | f2574737 | Jan Kiszka | return ret;
|
1761 | e22a25c9 | aliguori | } |
1762 | e22a25c9 | aliguori | |
1763 | e22a25c9 | aliguori | void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg) |
1764 | e22a25c9 | aliguori | { |
1765 | e22a25c9 | aliguori | const uint8_t type_code[] = {
|
1766 | e22a25c9 | aliguori | [GDB_BREAKPOINT_HW] = 0x0,
|
1767 | e22a25c9 | aliguori | [GDB_WATCHPOINT_WRITE] = 0x1,
|
1768 | e22a25c9 | aliguori | [GDB_WATCHPOINT_ACCESS] = 0x3
|
1769 | e22a25c9 | aliguori | }; |
1770 | e22a25c9 | aliguori | const uint8_t len_code[] = {
|
1771 | e22a25c9 | aliguori | [1] = 0x0, [2] = 0x1, [4] = 0x3, [8] = 0x2 |
1772 | e22a25c9 | aliguori | }; |
1773 | e22a25c9 | aliguori | int n;
|
1774 | e22a25c9 | aliguori | |
1775 | b9bec74b | Jan Kiszka | if (kvm_sw_breakpoints_active(env)) {
|
1776 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP; |
1777 | b9bec74b | Jan Kiszka | } |
1778 | e22a25c9 | aliguori | if (nb_hw_breakpoint > 0) { |
1779 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP; |
1780 | e22a25c9 | aliguori | dbg->arch.debugreg[7] = 0x0600; |
1781 | e22a25c9 | aliguori | for (n = 0; n < nb_hw_breakpoint; n++) { |
1782 | e22a25c9 | aliguori | dbg->arch.debugreg[n] = hw_breakpoint[n].addr; |
1783 | e22a25c9 | aliguori | dbg->arch.debugreg[7] |= (2 << (n * 2)) | |
1784 | e22a25c9 | aliguori | (type_code[hw_breakpoint[n].type] << (16 + n*4)) | |
1785 | 95c077c9 | Jan Kiszka | ((uint32_t)len_code[hw_breakpoint[n].len] << (18 + n*4)); |
1786 | e22a25c9 | aliguori | } |
1787 | e22a25c9 | aliguori | } |
1788 | e22a25c9 | aliguori | } |
1789 | 4513d923 | Gleb Natapov | |
1790 | 2a4dac83 | Jan Kiszka | static bool host_supports_vmx(void) |
1791 | 2a4dac83 | Jan Kiszka | { |
1792 | 2a4dac83 | Jan Kiszka | uint32_t ecx, unused; |
1793 | 2a4dac83 | Jan Kiszka | |
1794 | 2a4dac83 | Jan Kiszka | host_cpuid(1, 0, &unused, &unused, &ecx, &unused); |
1795 | 2a4dac83 | Jan Kiszka | return ecx & CPUID_EXT_VMX;
|
1796 | 2a4dac83 | Jan Kiszka | } |
1797 | 2a4dac83 | Jan Kiszka | |
1798 | 2a4dac83 | Jan Kiszka | #define VMX_INVALID_GUEST_STATE 0x80000021 |
1799 | 2a4dac83 | Jan Kiszka | |
1800 | 2a4dac83 | Jan Kiszka | int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run) |
1801 | 2a4dac83 | Jan Kiszka | { |
1802 | 2a4dac83 | Jan Kiszka | uint64_t code; |
1803 | 2a4dac83 | Jan Kiszka | int ret;
|
1804 | 2a4dac83 | Jan Kiszka | |
1805 | 2a4dac83 | Jan Kiszka | switch (run->exit_reason) {
|
1806 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_HLT:
|
1807 | 2a4dac83 | Jan Kiszka | DPRINTF("handle_hlt\n");
|
1808 | 2a4dac83 | Jan Kiszka | ret = kvm_handle_halt(env); |
1809 | 2a4dac83 | Jan Kiszka | break;
|
1810 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_SET_TPR:
|
1811 | 2a4dac83 | Jan Kiszka | ret = 0;
|
1812 | 2a4dac83 | Jan Kiszka | break;
|
1813 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_FAIL_ENTRY:
|
1814 | 2a4dac83 | Jan Kiszka | code = run->fail_entry.hardware_entry_failure_reason; |
1815 | 2a4dac83 | Jan Kiszka | fprintf(stderr, "KVM: entry failed, hardware error 0x%" PRIx64 "\n", |
1816 | 2a4dac83 | Jan Kiszka | code); |
1817 | 2a4dac83 | Jan Kiszka | if (host_supports_vmx() && code == VMX_INVALID_GUEST_STATE) {
|
1818 | 2a4dac83 | Jan Kiszka | fprintf(stderr, |
1819 | 2a4dac83 | Jan Kiszka | "\nIf you're runnning a guest on an Intel machine without "
|
1820 | 2a4dac83 | Jan Kiszka | "unrestricted mode\n"
|
1821 | 2a4dac83 | Jan Kiszka | "support, the failure can be most likely due to the guest "
|
1822 | 2a4dac83 | Jan Kiszka | "entering an invalid\n"
|
1823 | 2a4dac83 | Jan Kiszka | "state for Intel VT. For example, the guest maybe running "
|
1824 | 2a4dac83 | Jan Kiszka | "in big real mode\n"
|
1825 | 2a4dac83 | Jan Kiszka | "which is not supported on less recent Intel processors."
|
1826 | 2a4dac83 | Jan Kiszka | "\n\n");
|
1827 | 2a4dac83 | Jan Kiszka | } |
1828 | 2a4dac83 | Jan Kiszka | ret = -1;
|
1829 | 2a4dac83 | Jan Kiszka | break;
|
1830 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_EXCEPTION:
|
1831 | 2a4dac83 | Jan Kiszka | fprintf(stderr, "KVM: exception %d exit (error code 0x%x)\n",
|
1832 | 2a4dac83 | Jan Kiszka | run->ex.exception, run->ex.error_code); |
1833 | 2a4dac83 | Jan Kiszka | ret = -1;
|
1834 | 2a4dac83 | Jan Kiszka | break;
|
1835 | f2574737 | Jan Kiszka | case KVM_EXIT_DEBUG:
|
1836 | f2574737 | Jan Kiszka | DPRINTF("kvm_exit_debug\n");
|
1837 | f2574737 | Jan Kiszka | ret = kvm_handle_debug(&run->debug.arch); |
1838 | f2574737 | Jan Kiszka | break;
|
1839 | 2a4dac83 | Jan Kiszka | default:
|
1840 | 2a4dac83 | Jan Kiszka | fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason);
|
1841 | 2a4dac83 | Jan Kiszka | ret = -1;
|
1842 | 2a4dac83 | Jan Kiszka | break;
|
1843 | 2a4dac83 | Jan Kiszka | } |
1844 | 2a4dac83 | Jan Kiszka | |
1845 | 2a4dac83 | Jan Kiszka | return ret;
|
1846 | 2a4dac83 | Jan Kiszka | } |
1847 | 2a4dac83 | Jan Kiszka | |
1848 | 4513d923 | Gleb Natapov | bool kvm_arch_stop_on_emulation_error(CPUState *env)
|
1849 | 4513d923 | Gleb Natapov | { |
1850 | b9bec74b | Jan Kiszka | return !(env->cr[0] & CR0_PE_MASK) || |
1851 | b9bec74b | Jan Kiszka | ((env->segs[R_CS].selector & 3) != 3); |
1852 | 4513d923 | Gleb Natapov | } |