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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 | 05330448 | aliguori | |
22 | 05330448 | aliguori | #include "qemu-common.h" |
23 | 05330448 | aliguori | #include "sysemu.h" |
24 | 05330448 | aliguori | #include "kvm.h" |
25 | 05330448 | aliguori | #include "cpu.h" |
26 | e22a25c9 | aliguori | #include "gdbstub.h" |
27 | 0e607a80 | Jan Kiszka | #include "host-utils.h" |
28 | 4c5b10b7 | Jes Sorensen | #include "hw/pc.h" |
29 | 408392b3 | Sheng Yang | #include "hw/apic.h" |
30 | 35bed8ee | Paul Brook | #include "ioport.h" |
31 | 05330448 | aliguori | |
32 | bb0300dc | Gleb Natapov | #ifdef CONFIG_KVM_PARA
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33 | bb0300dc | Gleb Natapov | #include <linux/kvm_para.h> |
34 | bb0300dc | Gleb Natapov | #endif
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35 | bb0300dc | Gleb Natapov | //
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36 | 05330448 | aliguori | //#define DEBUG_KVM
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37 | 05330448 | aliguori | |
38 | 05330448 | aliguori | #ifdef DEBUG_KVM
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39 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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40 | 05330448 | aliguori | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
41 | 05330448 | aliguori | #else
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42 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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43 | 05330448 | aliguori | do { } while (0) |
44 | 05330448 | aliguori | #endif
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45 | 05330448 | aliguori | |
46 | 1a03675d | Glauber Costa | #define MSR_KVM_WALL_CLOCK 0x11 |
47 | 1a03675d | Glauber Costa | #define MSR_KVM_SYSTEM_TIME 0x12 |
48 | 1a03675d | Glauber Costa | |
49 | c0532a76 | Marcelo Tosatti | #ifndef BUS_MCEERR_AR
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50 | c0532a76 | Marcelo Tosatti | #define BUS_MCEERR_AR 4 |
51 | c0532a76 | Marcelo Tosatti | #endif
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52 | c0532a76 | Marcelo Tosatti | #ifndef BUS_MCEERR_AO
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53 | c0532a76 | Marcelo Tosatti | #define BUS_MCEERR_AO 5 |
54 | c0532a76 | Marcelo Tosatti | #endif
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55 | c0532a76 | Marcelo Tosatti | |
56 | 94a8d39a | Jan Kiszka | const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
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57 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(SET_TSS_ADDR), |
58 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(EXT_CPUID), |
59 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(MP_STATE), |
60 | 94a8d39a | Jan Kiszka | KVM_CAP_LAST_INFO |
61 | 94a8d39a | Jan Kiszka | }; |
62 | 25d2e361 | Marcelo Tosatti | |
63 | c3a3a7d3 | Jan Kiszka | static bool has_msr_star; |
64 | c3a3a7d3 | Jan Kiszka | static bool has_msr_hsave_pa; |
65 | c5999bfc | Jan Kiszka | #if defined(CONFIG_KVM_PARA) && defined(KVM_CAP_ASYNC_PF)
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66 | c5999bfc | Jan Kiszka | static bool has_msr_async_pf_en; |
67 | c5999bfc | Jan Kiszka | #endif
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68 | 25d2e361 | Marcelo Tosatti | static int lm_capable_kernel; |
69 | b827df58 | Avi Kivity | |
70 | b827df58 | Avi Kivity | static struct kvm_cpuid2 *try_get_cpuid(KVMState *s, int max) |
71 | b827df58 | Avi Kivity | { |
72 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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73 | b827df58 | Avi Kivity | int r, size;
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74 | b827df58 | Avi Kivity | |
75 | b827df58 | Avi Kivity | size = sizeof(*cpuid) + max * sizeof(*cpuid->entries); |
76 | b827df58 | Avi Kivity | cpuid = (struct kvm_cpuid2 *)qemu_mallocz(size);
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77 | b827df58 | Avi Kivity | cpuid->nent = max; |
78 | b827df58 | Avi Kivity | r = kvm_ioctl(s, KVM_GET_SUPPORTED_CPUID, cpuid); |
79 | 76ae317f | Mark McLoughlin | if (r == 0 && cpuid->nent >= max) { |
80 | 76ae317f | Mark McLoughlin | r = -E2BIG; |
81 | 76ae317f | Mark McLoughlin | } |
82 | b827df58 | Avi Kivity | if (r < 0) { |
83 | b827df58 | Avi Kivity | if (r == -E2BIG) {
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84 | b827df58 | Avi Kivity | qemu_free(cpuid); |
85 | b827df58 | Avi Kivity | return NULL; |
86 | b827df58 | Avi Kivity | } else {
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87 | b827df58 | Avi Kivity | fprintf(stderr, "KVM_GET_SUPPORTED_CPUID failed: %s\n",
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88 | b827df58 | Avi Kivity | strerror(-r)); |
89 | b827df58 | Avi Kivity | exit(1);
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90 | b827df58 | Avi Kivity | } |
91 | b827df58 | Avi Kivity | } |
92 | b827df58 | Avi Kivity | return cpuid;
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93 | b827df58 | Avi Kivity | } |
94 | b827df58 | Avi Kivity | |
95 | c958a8bd | Sheng Yang | uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function, |
96 | c958a8bd | Sheng Yang | uint32_t index, int reg)
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97 | b827df58 | Avi Kivity | { |
98 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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99 | b827df58 | Avi Kivity | int i, max;
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100 | b827df58 | Avi Kivity | uint32_t ret = 0;
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101 | b827df58 | Avi Kivity | uint32_t cpuid_1_edx; |
102 | b827df58 | Avi Kivity | |
103 | b827df58 | Avi Kivity | max = 1;
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104 | b827df58 | Avi Kivity | while ((cpuid = try_get_cpuid(env->kvm_state, max)) == NULL) { |
105 | b827df58 | Avi Kivity | max *= 2;
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106 | b827df58 | Avi Kivity | } |
107 | b827df58 | Avi Kivity | |
108 | b827df58 | Avi Kivity | for (i = 0; i < cpuid->nent; ++i) { |
109 | c958a8bd | Sheng Yang | if (cpuid->entries[i].function == function &&
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110 | c958a8bd | Sheng Yang | cpuid->entries[i].index == index) { |
111 | b827df58 | Avi Kivity | switch (reg) {
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112 | b827df58 | Avi Kivity | case R_EAX:
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113 | b827df58 | Avi Kivity | ret = cpuid->entries[i].eax; |
114 | b827df58 | Avi Kivity | break;
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115 | b827df58 | Avi Kivity | case R_EBX:
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116 | b827df58 | Avi Kivity | ret = cpuid->entries[i].ebx; |
117 | b827df58 | Avi Kivity | break;
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118 | b827df58 | Avi Kivity | case R_ECX:
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119 | b827df58 | Avi Kivity | ret = cpuid->entries[i].ecx; |
120 | b827df58 | Avi Kivity | break;
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121 | b827df58 | Avi Kivity | case R_EDX:
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122 | b827df58 | Avi Kivity | ret = cpuid->entries[i].edx; |
123 | 19ccb8ea | Jan Kiszka | switch (function) {
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124 | 19ccb8ea | Jan Kiszka | case 1: |
125 | 19ccb8ea | Jan Kiszka | /* KVM before 2.6.30 misreports the following features */
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126 | 19ccb8ea | Jan Kiszka | ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA; |
127 | 19ccb8ea | Jan Kiszka | break;
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128 | 19ccb8ea | Jan Kiszka | case 0x80000001: |
129 | b827df58 | Avi Kivity | /* On Intel, kvm returns cpuid according to the Intel spec,
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130 | b827df58 | Avi Kivity | * so add missing bits according to the AMD spec:
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131 | b827df58 | Avi Kivity | */
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132 | c958a8bd | Sheng Yang | cpuid_1_edx = kvm_arch_get_supported_cpuid(env, 1, 0, R_EDX); |
133 | c1667e40 | Gleb Natapov | ret |= cpuid_1_edx & 0x183f7ff;
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134 | 19ccb8ea | Jan Kiszka | break;
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135 | b827df58 | Avi Kivity | } |
136 | b827df58 | Avi Kivity | break;
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137 | b827df58 | Avi Kivity | } |
138 | b827df58 | Avi Kivity | } |
139 | b827df58 | Avi Kivity | } |
140 | b827df58 | Avi Kivity | |
141 | b827df58 | Avi Kivity | qemu_free(cpuid); |
142 | b827df58 | Avi Kivity | |
143 | b827df58 | Avi Kivity | return ret;
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144 | b827df58 | Avi Kivity | } |
145 | b827df58 | Avi Kivity | |
146 | bb0300dc | Gleb Natapov | #ifdef CONFIG_KVM_PARA
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147 | bb0300dc | Gleb Natapov | struct kvm_para_features {
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148 | b9bec74b | Jan Kiszka | int cap;
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149 | b9bec74b | Jan Kiszka | int feature;
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150 | bb0300dc | Gleb Natapov | } para_features[] = { |
151 | b9bec74b | Jan Kiszka | { KVM_CAP_CLOCKSOURCE, KVM_FEATURE_CLOCKSOURCE }, |
152 | b9bec74b | Jan Kiszka | { KVM_CAP_NOP_IO_DELAY, KVM_FEATURE_NOP_IO_DELAY }, |
153 | b9bec74b | Jan Kiszka | { KVM_CAP_PV_MMU, KVM_FEATURE_MMU_OP }, |
154 | f6584ee2 | Gleb Natapov | #ifdef KVM_CAP_ASYNC_PF
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155 | b9bec74b | Jan Kiszka | { KVM_CAP_ASYNC_PF, KVM_FEATURE_ASYNC_PF }, |
156 | f6584ee2 | Gleb Natapov | #endif
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157 | b9bec74b | Jan Kiszka | { -1, -1 } |
158 | bb0300dc | Gleb Natapov | }; |
159 | bb0300dc | Gleb Natapov | |
160 | bb0300dc | Gleb Natapov | static int get_para_features(CPUState *env) |
161 | bb0300dc | Gleb Natapov | { |
162 | b9bec74b | Jan Kiszka | int i, features = 0; |
163 | bb0300dc | Gleb Natapov | |
164 | b9bec74b | Jan Kiszka | for (i = 0; i < ARRAY_SIZE(para_features) - 1; i++) { |
165 | b9bec74b | Jan Kiszka | if (kvm_check_extension(env->kvm_state, para_features[i].cap)) {
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166 | b9bec74b | Jan Kiszka | features |= (1 << para_features[i].feature);
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167 | bb0300dc | Gleb Natapov | } |
168 | b9bec74b | Jan Kiszka | } |
169 | b3a98367 | Anthony Liguori | #ifdef KVM_CAP_ASYNC_PF
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170 | c5999bfc | Jan Kiszka | has_msr_async_pf_en = features & (1 << KVM_FEATURE_ASYNC_PF);
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171 | b3a98367 | Anthony Liguori | #endif
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172 | b9bec74b | Jan Kiszka | return features;
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173 | bb0300dc | Gleb Natapov | } |
174 | 419fb20a | Jan Kiszka | #endif /* CONFIG_KVM_PARA */ |
175 | bb0300dc | Gleb Natapov | |
176 | 3c85e74f | Huang Ying | typedef struct HWPoisonPage { |
177 | 3c85e74f | Huang Ying | ram_addr_t ram_addr; |
178 | 3c85e74f | Huang Ying | QLIST_ENTRY(HWPoisonPage) list; |
179 | 3c85e74f | Huang Ying | } HWPoisonPage; |
180 | 3c85e74f | Huang Ying | |
181 | 3c85e74f | Huang Ying | static QLIST_HEAD(, HWPoisonPage) hwpoison_page_list =
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182 | 3c85e74f | Huang Ying | QLIST_HEAD_INITIALIZER(hwpoison_page_list); |
183 | 3c85e74f | Huang Ying | |
184 | 3c85e74f | Huang Ying | static void kvm_unpoison_all(void *param) |
185 | 3c85e74f | Huang Ying | { |
186 | 3c85e74f | Huang Ying | HWPoisonPage *page, *next_page; |
187 | 3c85e74f | Huang Ying | |
188 | 3c85e74f | Huang Ying | QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) { |
189 | 3c85e74f | Huang Ying | QLIST_REMOVE(page, list); |
190 | 3c85e74f | Huang Ying | qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE); |
191 | 3c85e74f | Huang Ying | qemu_free(page); |
192 | 3c85e74f | Huang Ying | } |
193 | 3c85e74f | Huang Ying | } |
194 | 3c85e74f | Huang Ying | |
195 | e7701825 | Marcelo Tosatti | #ifdef KVM_CAP_MCE
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196 | 3c85e74f | Huang Ying | static void kvm_hwpoison_page_add(ram_addr_t ram_addr) |
197 | 3c85e74f | Huang Ying | { |
198 | 3c85e74f | Huang Ying | HWPoisonPage *page; |
199 | 3c85e74f | Huang Ying | |
200 | 3c85e74f | Huang Ying | QLIST_FOREACH(page, &hwpoison_page_list, list) { |
201 | 3c85e74f | Huang Ying | if (page->ram_addr == ram_addr) {
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202 | 3c85e74f | Huang Ying | return;
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203 | 3c85e74f | Huang Ying | } |
204 | 3c85e74f | Huang Ying | } |
205 | 3c85e74f | Huang Ying | page = qemu_malloc(sizeof(HWPoisonPage));
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206 | 3c85e74f | Huang Ying | page->ram_addr = ram_addr; |
207 | 3c85e74f | Huang Ying | QLIST_INSERT_HEAD(&hwpoison_page_list, page, list); |
208 | 3c85e74f | Huang Ying | } |
209 | 3c85e74f | Huang Ying | |
210 | e7701825 | Marcelo Tosatti | static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap, |
211 | e7701825 | Marcelo Tosatti | int *max_banks)
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212 | e7701825 | Marcelo Tosatti | { |
213 | e7701825 | Marcelo Tosatti | int r;
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214 | e7701825 | Marcelo Tosatti | |
215 | 14a09518 | Lai Jiangshan | r = kvm_check_extension(s, KVM_CAP_MCE); |
216 | e7701825 | Marcelo Tosatti | if (r > 0) { |
217 | e7701825 | Marcelo Tosatti | *max_banks = r; |
218 | e7701825 | Marcelo Tosatti | return kvm_ioctl(s, KVM_X86_GET_MCE_CAP_SUPPORTED, mce_cap);
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219 | e7701825 | Marcelo Tosatti | } |
220 | e7701825 | Marcelo Tosatti | return -ENOSYS;
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221 | e7701825 | Marcelo Tosatti | } |
222 | e7701825 | Marcelo Tosatti | |
223 | c34d440a | Jan Kiszka | static void kvm_mce_inject(CPUState *env, target_phys_addr_t paddr, int code) |
224 | e7701825 | Marcelo Tosatti | { |
225 | c34d440a | Jan Kiszka | uint64_t status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | |
226 | c34d440a | Jan Kiszka | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S; |
227 | c34d440a | Jan Kiszka | uint64_t mcg_status = MCG_STATUS_MCIP; |
228 | e7701825 | Marcelo Tosatti | |
229 | c34d440a | Jan Kiszka | if (code == BUS_MCEERR_AR) {
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230 | c34d440a | Jan Kiszka | status |= MCI_STATUS_AR | 0x134;
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231 | c34d440a | Jan Kiszka | mcg_status |= MCG_STATUS_EIPV; |
232 | c34d440a | Jan Kiszka | } else {
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233 | c34d440a | Jan Kiszka | status |= 0xc0;
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234 | c34d440a | Jan Kiszka | mcg_status |= MCG_STATUS_RIPV; |
235 | 419fb20a | Jan Kiszka | } |
236 | c34d440a | Jan Kiszka | cpu_x86_inject_mce(NULL, env, 9, status, mcg_status, paddr, |
237 | c34d440a | Jan Kiszka | (MCM_ADDR_PHYS << 6) | 0xc, |
238 | c34d440a | Jan Kiszka | cpu_x86_support_mca_broadcast(env) ? |
239 | c34d440a | Jan Kiszka | MCE_INJECT_BROADCAST : 0);
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240 | 419fb20a | Jan Kiszka | } |
241 | 419fb20a | Jan Kiszka | #endif /* KVM_CAP_MCE */ |
242 | 419fb20a | Jan Kiszka | |
243 | 419fb20a | Jan Kiszka | static void hardware_memory_error(void) |
244 | 419fb20a | Jan Kiszka | { |
245 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error!\n");
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246 | 419fb20a | Jan Kiszka | exit(1);
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247 | 419fb20a | Jan Kiszka | } |
248 | 419fb20a | Jan Kiszka | |
249 | 419fb20a | Jan Kiszka | int kvm_arch_on_sigbus_vcpu(CPUState *env, int code, void *addr) |
250 | 419fb20a | Jan Kiszka | { |
251 | 419fb20a | Jan Kiszka | #ifdef KVM_CAP_MCE
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252 | 419fb20a | Jan Kiszka | ram_addr_t ram_addr; |
253 | 419fb20a | Jan Kiszka | target_phys_addr_t paddr; |
254 | 419fb20a | Jan Kiszka | |
255 | 419fb20a | Jan Kiszka | if ((env->mcg_cap & MCG_SER_P) && addr
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256 | c34d440a | Jan Kiszka | && (code == BUS_MCEERR_AR || code == BUS_MCEERR_AO)) { |
257 | c34d440a | Jan Kiszka | if (qemu_ram_addr_from_host(addr, &ram_addr) ||
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258 | c34d440a | Jan Kiszka | !kvm_physical_memory_addr_from_ram(env->kvm_state, ram_addr, |
259 | c34d440a | Jan Kiszka | &paddr)) { |
260 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error for memory used by "
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261 | 419fb20a | Jan Kiszka | "QEMU itself instead of guest system!\n");
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262 | 419fb20a | Jan Kiszka | /* Hope we are lucky for AO MCE */
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263 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
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264 | 419fb20a | Jan Kiszka | return 0; |
265 | 419fb20a | Jan Kiszka | } else {
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266 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
267 | 419fb20a | Jan Kiszka | } |
268 | 419fb20a | Jan Kiszka | } |
269 | 3c85e74f | Huang Ying | kvm_hwpoison_page_add(ram_addr); |
270 | c34d440a | Jan Kiszka | kvm_mce_inject(env, paddr, code); |
271 | 419fb20a | Jan Kiszka | } else
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272 | 419fb20a | Jan Kiszka | #endif /* KVM_CAP_MCE */ |
273 | 419fb20a | Jan Kiszka | { |
274 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
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275 | 419fb20a | Jan Kiszka | return 0; |
276 | 419fb20a | Jan Kiszka | } else if (code == BUS_MCEERR_AR) { |
277 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
278 | 419fb20a | Jan Kiszka | } else {
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279 | 419fb20a | Jan Kiszka | return 1; |
280 | 419fb20a | Jan Kiszka | } |
281 | 419fb20a | Jan Kiszka | } |
282 | 419fb20a | Jan Kiszka | return 0; |
283 | 419fb20a | Jan Kiszka | } |
284 | 419fb20a | Jan Kiszka | |
285 | 419fb20a | Jan Kiszka | int kvm_arch_on_sigbus(int code, void *addr) |
286 | 419fb20a | Jan Kiszka | { |
287 | 419fb20a | Jan Kiszka | #ifdef KVM_CAP_MCE
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288 | 419fb20a | Jan Kiszka | if ((first_cpu->mcg_cap & MCG_SER_P) && addr && code == BUS_MCEERR_AO) {
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289 | 419fb20a | Jan Kiszka | ram_addr_t ram_addr; |
290 | 419fb20a | Jan Kiszka | target_phys_addr_t paddr; |
291 | 419fb20a | Jan Kiszka | |
292 | 419fb20a | Jan Kiszka | /* Hope we are lucky for AO MCE */
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293 | c34d440a | Jan Kiszka | if (qemu_ram_addr_from_host(addr, &ram_addr) ||
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294 | 419fb20a | Jan Kiszka | !kvm_physical_memory_addr_from_ram(first_cpu->kvm_state, ram_addr, |
295 | 419fb20a | Jan Kiszka | &paddr)) { |
296 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error for memory used by "
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297 | 419fb20a | Jan Kiszka | "QEMU itself instead of guest system!: %p\n", addr);
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298 | 419fb20a | Jan Kiszka | return 0; |
299 | 419fb20a | Jan Kiszka | } |
300 | 3c85e74f | Huang Ying | kvm_hwpoison_page_add(ram_addr); |
301 | c34d440a | Jan Kiszka | kvm_mce_inject(first_cpu, paddr, code); |
302 | 419fb20a | Jan Kiszka | } else
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303 | 419fb20a | Jan Kiszka | #endif /* KVM_CAP_MCE */ |
304 | 419fb20a | Jan Kiszka | { |
305 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
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306 | 419fb20a | Jan Kiszka | return 0; |
307 | 419fb20a | Jan Kiszka | } else if (code == BUS_MCEERR_AR) { |
308 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
309 | 419fb20a | Jan Kiszka | } else {
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310 | 419fb20a | Jan Kiszka | return 1; |
311 | 419fb20a | Jan Kiszka | } |
312 | 419fb20a | Jan Kiszka | } |
313 | 419fb20a | Jan Kiszka | return 0; |
314 | 419fb20a | Jan Kiszka | } |
315 | e7701825 | Marcelo Tosatti | |
316 | ab443475 | Jan Kiszka | static int kvm_inject_mce_oldstyle(CPUState *env) |
317 | ab443475 | Jan Kiszka | { |
318 | ab443475 | Jan Kiszka | #ifdef KVM_CAP_MCE
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319 | ab443475 | Jan Kiszka | if (!kvm_has_vcpu_events() && env->exception_injected == EXCP12_MCHK) {
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320 | ab443475 | Jan Kiszka | unsigned int bank, bank_num = env->mcg_cap & 0xff; |
321 | ab443475 | Jan Kiszka | struct kvm_x86_mce mce;
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322 | ab443475 | Jan Kiszka | |
323 | ab443475 | Jan Kiszka | env->exception_injected = -1;
|
324 | ab443475 | Jan Kiszka | |
325 | ab443475 | Jan Kiszka | /*
|
326 | ab443475 | Jan Kiszka | * There must be at least one bank in use if an MCE is pending.
|
327 | ab443475 | Jan Kiszka | * Find it and use its values for the event injection.
|
328 | ab443475 | Jan Kiszka | */
|
329 | ab443475 | Jan Kiszka | for (bank = 0; bank < bank_num; bank++) { |
330 | ab443475 | Jan Kiszka | if (env->mce_banks[bank * 4 + 1] & MCI_STATUS_VAL) { |
331 | ab443475 | Jan Kiszka | break;
|
332 | ab443475 | Jan Kiszka | } |
333 | ab443475 | Jan Kiszka | } |
334 | ab443475 | Jan Kiszka | assert(bank < bank_num); |
335 | ab443475 | Jan Kiszka | |
336 | ab443475 | Jan Kiszka | mce.bank = bank; |
337 | ab443475 | Jan Kiszka | mce.status = env->mce_banks[bank * 4 + 1]; |
338 | ab443475 | Jan Kiszka | mce.mcg_status = env->mcg_status; |
339 | ab443475 | Jan Kiszka | mce.addr = env->mce_banks[bank * 4 + 2]; |
340 | ab443475 | Jan Kiszka | mce.misc = env->mce_banks[bank * 4 + 3]; |
341 | ab443475 | Jan Kiszka | |
342 | ab443475 | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_X86_SET_MCE, &mce);
|
343 | ab443475 | Jan Kiszka | } |
344 | ab443475 | Jan Kiszka | #endif /* KVM_CAP_MCE */ |
345 | ab443475 | Jan Kiszka | return 0; |
346 | ab443475 | Jan Kiszka | } |
347 | ab443475 | Jan Kiszka | |
348 | b8cc45d6 | Glauber Costa | static void cpu_update_state(void *opaque, int running, int reason) |
349 | b8cc45d6 | Glauber Costa | { |
350 | b8cc45d6 | Glauber Costa | CPUState *env = opaque; |
351 | b8cc45d6 | Glauber Costa | |
352 | b8cc45d6 | Glauber Costa | if (running) {
|
353 | b8cc45d6 | Glauber Costa | env->tsc_valid = false;
|
354 | b8cc45d6 | Glauber Costa | } |
355 | b8cc45d6 | Glauber Costa | } |
356 | b8cc45d6 | Glauber Costa | |
357 | 05330448 | aliguori | int kvm_arch_init_vcpu(CPUState *env)
|
358 | 05330448 | aliguori | { |
359 | 05330448 | aliguori | struct {
|
360 | 486bd5a2 | aliguori | struct kvm_cpuid2 cpuid;
|
361 | 486bd5a2 | aliguori | struct kvm_cpuid_entry2 entries[100]; |
362 | 05330448 | aliguori | } __attribute__((packed)) cpuid_data; |
363 | 486bd5a2 | aliguori | uint32_t limit, i, j, cpuid_i; |
364 | a33609ca | aliguori | uint32_t unused; |
365 | bb0300dc | Gleb Natapov | struct kvm_cpuid_entry2 *c;
|
366 | 521f0798 | Jan Kiszka | #ifdef CONFIG_KVM_PARA
|
367 | bb0300dc | Gleb Natapov | uint32_t signature[3];
|
368 | bb0300dc | Gleb Natapov | #endif
|
369 | 05330448 | aliguori | |
370 | c958a8bd | Sheng Yang | env->cpuid_features &= kvm_arch_get_supported_cpuid(env, 1, 0, R_EDX); |
371 | 6c0d7ee8 | Andre Przywara | |
372 | 6c0d7ee8 | Andre Przywara | i = env->cpuid_ext_features & CPUID_EXT_HYPERVISOR; |
373 | c958a8bd | Sheng Yang | env->cpuid_ext_features &= kvm_arch_get_supported_cpuid(env, 1, 0, R_ECX); |
374 | 6c0d7ee8 | Andre Przywara | env->cpuid_ext_features |= i; |
375 | 6c0d7ee8 | Andre Przywara | |
376 | 457dfed6 | Andre Przywara | env->cpuid_ext2_features &= kvm_arch_get_supported_cpuid(env, 0x80000001,
|
377 | c958a8bd | Sheng Yang | 0, R_EDX);
|
378 | 457dfed6 | Andre Przywara | env->cpuid_ext3_features &= kvm_arch_get_supported_cpuid(env, 0x80000001,
|
379 | c958a8bd | Sheng Yang | 0, R_ECX);
|
380 | 296acb64 | Joerg Roedel | env->cpuid_svm_features &= kvm_arch_get_supported_cpuid(env, 0x8000000A,
|
381 | 296acb64 | Joerg Roedel | 0, R_EDX);
|
382 | 296acb64 | Joerg Roedel | |
383 | 6c1f42fe | Andre Przywara | |
384 | 05330448 | aliguori | cpuid_i = 0;
|
385 | 05330448 | aliguori | |
386 | bb0300dc | Gleb Natapov | #ifdef CONFIG_KVM_PARA
|
387 | bb0300dc | Gleb Natapov | /* Paravirtualization CPUIDs */
|
388 | bb0300dc | Gleb Natapov | memcpy(signature, "KVMKVMKVM\0\0\0", 12); |
389 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
390 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
391 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_SIGNATURE; |
392 | bb0300dc | Gleb Natapov | c->eax = 0;
|
393 | bb0300dc | Gleb Natapov | c->ebx = signature[0];
|
394 | bb0300dc | Gleb Natapov | c->ecx = signature[1];
|
395 | bb0300dc | Gleb Natapov | c->edx = signature[2];
|
396 | bb0300dc | Gleb Natapov | |
397 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
398 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
399 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_FEATURES; |
400 | bb0300dc | Gleb Natapov | c->eax = env->cpuid_kvm_features & get_para_features(env); |
401 | bb0300dc | Gleb Natapov | #endif
|
402 | bb0300dc | Gleb Natapov | |
403 | a33609ca | aliguori | cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); |
404 | 05330448 | aliguori | |
405 | 05330448 | aliguori | for (i = 0; i <= limit; i++) { |
406 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
407 | 486bd5a2 | aliguori | |
408 | 486bd5a2 | aliguori | switch (i) {
|
409 | a36b1029 | aliguori | case 2: { |
410 | a36b1029 | aliguori | /* Keep reading function 2 till all the input is received */
|
411 | a36b1029 | aliguori | int times;
|
412 | a36b1029 | aliguori | |
413 | a36b1029 | aliguori | c->function = i; |
414 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC | |
415 | a33609ca | aliguori | KVM_CPUID_FLAG_STATE_READ_NEXT; |
416 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
417 | a33609ca | aliguori | times = c->eax & 0xff;
|
418 | a36b1029 | aliguori | |
419 | a36b1029 | aliguori | for (j = 1; j < times; ++j) { |
420 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
421 | a36b1029 | aliguori | c->function = i; |
422 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC; |
423 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
424 | a36b1029 | aliguori | } |
425 | a36b1029 | aliguori | break;
|
426 | a36b1029 | aliguori | } |
427 | 486bd5a2 | aliguori | case 4: |
428 | 486bd5a2 | aliguori | case 0xb: |
429 | 486bd5a2 | aliguori | case 0xd: |
430 | 486bd5a2 | aliguori | for (j = 0; ; j++) { |
431 | 486bd5a2 | aliguori | c->function = i; |
432 | 486bd5a2 | aliguori | c->flags = KVM_CPUID_FLAG_SIGNIFCANT_INDEX; |
433 | 486bd5a2 | aliguori | c->index = j; |
434 | a33609ca | aliguori | cpu_x86_cpuid(env, i, j, &c->eax, &c->ebx, &c->ecx, &c->edx); |
435 | 486bd5a2 | aliguori | |
436 | b9bec74b | Jan Kiszka | if (i == 4 && c->eax == 0) { |
437 | 486bd5a2 | aliguori | break;
|
438 | b9bec74b | Jan Kiszka | } |
439 | b9bec74b | Jan Kiszka | if (i == 0xb && !(c->ecx & 0xff00)) { |
440 | 486bd5a2 | aliguori | break;
|
441 | b9bec74b | Jan Kiszka | } |
442 | b9bec74b | Jan Kiszka | if (i == 0xd && c->eax == 0) { |
443 | 486bd5a2 | aliguori | break;
|
444 | b9bec74b | Jan Kiszka | } |
445 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
446 | 486bd5a2 | aliguori | } |
447 | 486bd5a2 | aliguori | break;
|
448 | 486bd5a2 | aliguori | default:
|
449 | 486bd5a2 | aliguori | c->function = i; |
450 | a33609ca | aliguori | c->flags = 0;
|
451 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
452 | 486bd5a2 | aliguori | break;
|
453 | 486bd5a2 | aliguori | } |
454 | 05330448 | aliguori | } |
455 | a33609ca | aliguori | cpu_x86_cpuid(env, 0x80000000, 0, &limit, &unused, &unused, &unused); |
456 | 05330448 | aliguori | |
457 | 05330448 | aliguori | for (i = 0x80000000; i <= limit; i++) { |
458 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
459 | 05330448 | aliguori | |
460 | 05330448 | aliguori | c->function = i; |
461 | a33609ca | aliguori | c->flags = 0;
|
462 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
463 | 05330448 | aliguori | } |
464 | 05330448 | aliguori | |
465 | 05330448 | aliguori | cpuid_data.cpuid.nent = cpuid_i; |
466 | 05330448 | aliguori | |
467 | e7701825 | Marcelo Tosatti | #ifdef KVM_CAP_MCE
|
468 | e7701825 | Marcelo Tosatti | if (((env->cpuid_version >> 8)&0xF) >= 6 |
469 | e7701825 | Marcelo Tosatti | && (env->cpuid_features&(CPUID_MCE|CPUID_MCA)) == (CPUID_MCE|CPUID_MCA) |
470 | e7701825 | Marcelo Tosatti | && kvm_check_extension(env->kvm_state, KVM_CAP_MCE) > 0) {
|
471 | e7701825 | Marcelo Tosatti | uint64_t mcg_cap; |
472 | e7701825 | Marcelo Tosatti | int banks;
|
473 | 32a42024 | Jan Kiszka | int ret;
|
474 | e7701825 | Marcelo Tosatti | |
475 | 75d49497 | Jan Kiszka | ret = kvm_get_mce_cap_supported(env->kvm_state, &mcg_cap, &banks); |
476 | 75d49497 | Jan Kiszka | if (ret < 0) { |
477 | 75d49497 | Jan Kiszka | fprintf(stderr, "kvm_get_mce_cap_supported: %s", strerror(-ret));
|
478 | 75d49497 | Jan Kiszka | return ret;
|
479 | e7701825 | Marcelo Tosatti | } |
480 | 75d49497 | Jan Kiszka | |
481 | 75d49497 | Jan Kiszka | if (banks > MCE_BANKS_DEF) {
|
482 | 75d49497 | Jan Kiszka | banks = MCE_BANKS_DEF; |
483 | 75d49497 | Jan Kiszka | } |
484 | 75d49497 | Jan Kiszka | mcg_cap &= MCE_CAP_DEF; |
485 | 75d49497 | Jan Kiszka | mcg_cap |= banks; |
486 | 75d49497 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_X86_SETUP_MCE, &mcg_cap); |
487 | 75d49497 | Jan Kiszka | if (ret < 0) { |
488 | 75d49497 | Jan Kiszka | fprintf(stderr, "KVM_X86_SETUP_MCE: %s", strerror(-ret));
|
489 | 75d49497 | Jan Kiszka | return ret;
|
490 | 75d49497 | Jan Kiszka | } |
491 | 75d49497 | Jan Kiszka | |
492 | 75d49497 | Jan Kiszka | env->mcg_cap = mcg_cap; |
493 | e7701825 | Marcelo Tosatti | } |
494 | e7701825 | Marcelo Tosatti | #endif
|
495 | e7701825 | Marcelo Tosatti | |
496 | b8cc45d6 | Glauber Costa | qemu_add_vm_change_state_handler(cpu_update_state, env); |
497 | b8cc45d6 | Glauber Costa | |
498 | 486bd5a2 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_CPUID2, &cpuid_data);
|
499 | 05330448 | aliguori | } |
500 | 05330448 | aliguori | |
501 | caa5af0f | Jan Kiszka | void kvm_arch_reset_vcpu(CPUState *env)
|
502 | caa5af0f | Jan Kiszka | { |
503 | e73223a5 | Gleb Natapov | env->exception_injected = -1;
|
504 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
505 | 1a5e9d2f | Jan Kiszka | env->xcr0 = 1;
|
506 | ddced198 | Marcelo Tosatti | if (kvm_irqchip_in_kernel()) {
|
507 | ddced198 | Marcelo Tosatti | env->mp_state = cpu_is_bsp(env) ? KVM_MP_STATE_RUNNABLE : |
508 | ddced198 | Marcelo Tosatti | KVM_MP_STATE_UNINITIALIZED; |
509 | ddced198 | Marcelo Tosatti | } else {
|
510 | ddced198 | Marcelo Tosatti | env->mp_state = KVM_MP_STATE_RUNNABLE; |
511 | ddced198 | Marcelo Tosatti | } |
512 | caa5af0f | Jan Kiszka | } |
513 | caa5af0f | Jan Kiszka | |
514 | c3a3a7d3 | Jan Kiszka | static int kvm_get_supported_msrs(KVMState *s) |
515 | 05330448 | aliguori | { |
516 | 75b10c43 | Marcelo Tosatti | static int kvm_supported_msrs; |
517 | c3a3a7d3 | Jan Kiszka | int ret = 0; |
518 | 05330448 | aliguori | |
519 | 05330448 | aliguori | /* first time */
|
520 | 75b10c43 | Marcelo Tosatti | if (kvm_supported_msrs == 0) { |
521 | 05330448 | aliguori | struct kvm_msr_list msr_list, *kvm_msr_list;
|
522 | 05330448 | aliguori | |
523 | 75b10c43 | Marcelo Tosatti | kvm_supported_msrs = -1;
|
524 | 05330448 | aliguori | |
525 | 05330448 | aliguori | /* Obtain MSR list from KVM. These are the MSRs that we must
|
526 | 05330448 | aliguori | * save/restore */
|
527 | 4c9f7372 | aliguori | msr_list.nmsrs = 0;
|
528 | c3a3a7d3 | Jan Kiszka | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, &msr_list); |
529 | 6fb6d245 | Jan Kiszka | if (ret < 0 && ret != -E2BIG) { |
530 | c3a3a7d3 | Jan Kiszka | return ret;
|
531 | 6fb6d245 | Jan Kiszka | } |
532 | d9db889f | Jan Kiszka | /* Old kernel modules had a bug and could write beyond the provided
|
533 | d9db889f | Jan Kiszka | memory. Allocate at least a safe amount of 1K. */
|
534 | d9db889f | Jan Kiszka | kvm_msr_list = qemu_mallocz(MAX(1024, sizeof(msr_list) + |
535 | d9db889f | Jan Kiszka | msr_list.nmsrs * |
536 | d9db889f | Jan Kiszka | sizeof(msr_list.indices[0]))); |
537 | 05330448 | aliguori | |
538 | 55308450 | aliguori | kvm_msr_list->nmsrs = msr_list.nmsrs; |
539 | c3a3a7d3 | Jan Kiszka | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, kvm_msr_list); |
540 | 05330448 | aliguori | if (ret >= 0) { |
541 | 05330448 | aliguori | int i;
|
542 | 05330448 | aliguori | |
543 | 05330448 | aliguori | for (i = 0; i < kvm_msr_list->nmsrs; i++) { |
544 | 05330448 | aliguori | if (kvm_msr_list->indices[i] == MSR_STAR) {
|
545 | c3a3a7d3 | Jan Kiszka | has_msr_star = true;
|
546 | 75b10c43 | Marcelo Tosatti | continue;
|
547 | 75b10c43 | Marcelo Tosatti | } |
548 | 75b10c43 | Marcelo Tosatti | if (kvm_msr_list->indices[i] == MSR_VM_HSAVE_PA) {
|
549 | c3a3a7d3 | Jan Kiszka | has_msr_hsave_pa = true;
|
550 | 75b10c43 | Marcelo Tosatti | continue;
|
551 | 05330448 | aliguori | } |
552 | 05330448 | aliguori | } |
553 | 05330448 | aliguori | } |
554 | 05330448 | aliguori | |
555 | 05330448 | aliguori | free(kvm_msr_list); |
556 | 05330448 | aliguori | } |
557 | 05330448 | aliguori | |
558 | c3a3a7d3 | Jan Kiszka | return ret;
|
559 | 05330448 | aliguori | } |
560 | 05330448 | aliguori | |
561 | cad1e282 | Jan Kiszka | int kvm_arch_init(KVMState *s)
|
562 | 20420430 | Sheng Yang | { |
563 | 11076198 | Jan Kiszka | uint64_t identity_base = 0xfffbc000;
|
564 | 20420430 | Sheng Yang | int ret;
|
565 | 25d2e361 | Marcelo Tosatti | struct utsname utsname;
|
566 | 20420430 | Sheng Yang | |
567 | c3a3a7d3 | Jan Kiszka | ret = kvm_get_supported_msrs(s); |
568 | 20420430 | Sheng Yang | if (ret < 0) { |
569 | 20420430 | Sheng Yang | return ret;
|
570 | 20420430 | Sheng Yang | } |
571 | 25d2e361 | Marcelo Tosatti | |
572 | 25d2e361 | Marcelo Tosatti | uname(&utsname); |
573 | 25d2e361 | Marcelo Tosatti | lm_capable_kernel = strcmp(utsname.machine, "x86_64") == 0; |
574 | 25d2e361 | Marcelo Tosatti | |
575 | 4c5b10b7 | Jes Sorensen | /*
|
576 | 11076198 | Jan Kiszka | * On older Intel CPUs, KVM uses vm86 mode to emulate 16-bit code directly.
|
577 | 11076198 | Jan Kiszka | * In order to use vm86 mode, an EPT identity map and a TSS are needed.
|
578 | 11076198 | Jan Kiszka | * Since these must be part of guest physical memory, we need to allocate
|
579 | 11076198 | Jan Kiszka | * them, both by setting their start addresses in the kernel and by
|
580 | 11076198 | Jan Kiszka | * creating a corresponding e820 entry. We need 4 pages before the BIOS.
|
581 | 11076198 | Jan Kiszka | *
|
582 | 11076198 | Jan Kiszka | * Older KVM versions may not support setting the identity map base. In
|
583 | 11076198 | Jan Kiszka | * that case we need to stick with the default, i.e. a 256K maximum BIOS
|
584 | 11076198 | Jan Kiszka | * size.
|
585 | 4c5b10b7 | Jes Sorensen | */
|
586 | 11076198 | Jan Kiszka | #ifdef KVM_CAP_SET_IDENTITY_MAP_ADDR
|
587 | 11076198 | Jan Kiszka | if (kvm_check_extension(s, KVM_CAP_SET_IDENTITY_MAP_ADDR)) {
|
588 | 11076198 | Jan Kiszka | /* Allows up to 16M BIOSes. */
|
589 | 11076198 | Jan Kiszka | identity_base = 0xfeffc000;
|
590 | 11076198 | Jan Kiszka | |
591 | 11076198 | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_SET_IDENTITY_MAP_ADDR, &identity_base); |
592 | 11076198 | Jan Kiszka | if (ret < 0) { |
593 | 11076198 | Jan Kiszka | return ret;
|
594 | 11076198 | Jan Kiszka | } |
595 | 4c5b10b7 | Jes Sorensen | } |
596 | 11076198 | Jan Kiszka | #endif
|
597 | 11076198 | Jan Kiszka | /* Set TSS base one page after EPT identity map. */
|
598 | 11076198 | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_SET_TSS_ADDR, identity_base + 0x1000);
|
599 | 20420430 | Sheng Yang | if (ret < 0) { |
600 | 20420430 | Sheng Yang | return ret;
|
601 | 20420430 | Sheng Yang | } |
602 | 20420430 | Sheng Yang | |
603 | 11076198 | Jan Kiszka | /* Tell fw_cfg to notify the BIOS to reserve the range. */
|
604 | 11076198 | Jan Kiszka | ret = e820_add_entry(identity_base, 0x4000, E820_RESERVED);
|
605 | 20420430 | Sheng Yang | if (ret < 0) { |
606 | 11076198 | Jan Kiszka | fprintf(stderr, "e820_add_entry() table is full\n");
|
607 | 20420430 | Sheng Yang | return ret;
|
608 | 20420430 | Sheng Yang | } |
609 | 3c85e74f | Huang Ying | qemu_register_reset(kvm_unpoison_all, NULL);
|
610 | 20420430 | Sheng Yang | |
611 | 11076198 | Jan Kiszka | return 0; |
612 | 05330448 | aliguori | } |
613 | b9bec74b | Jan Kiszka | |
614 | 05330448 | aliguori | static void set_v8086_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
615 | 05330448 | aliguori | { |
616 | 05330448 | aliguori | lhs->selector = rhs->selector; |
617 | 05330448 | aliguori | lhs->base = rhs->base; |
618 | 05330448 | aliguori | lhs->limit = rhs->limit; |
619 | 05330448 | aliguori | lhs->type = 3;
|
620 | 05330448 | aliguori | lhs->present = 1;
|
621 | 05330448 | aliguori | lhs->dpl = 3;
|
622 | 05330448 | aliguori | lhs->db = 0;
|
623 | 05330448 | aliguori | lhs->s = 1;
|
624 | 05330448 | aliguori | lhs->l = 0;
|
625 | 05330448 | aliguori | lhs->g = 0;
|
626 | 05330448 | aliguori | lhs->avl = 0;
|
627 | 05330448 | aliguori | lhs->unusable = 0;
|
628 | 05330448 | aliguori | } |
629 | 05330448 | aliguori | |
630 | 05330448 | aliguori | static void set_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
631 | 05330448 | aliguori | { |
632 | 05330448 | aliguori | unsigned flags = rhs->flags;
|
633 | 05330448 | aliguori | lhs->selector = rhs->selector; |
634 | 05330448 | aliguori | lhs->base = rhs->base; |
635 | 05330448 | aliguori | lhs->limit = rhs->limit; |
636 | 05330448 | aliguori | lhs->type = (flags >> DESC_TYPE_SHIFT) & 15;
|
637 | 05330448 | aliguori | lhs->present = (flags & DESC_P_MASK) != 0;
|
638 | acaa7550 | Jan Kiszka | lhs->dpl = (flags >> DESC_DPL_SHIFT) & 3;
|
639 | 05330448 | aliguori | lhs->db = (flags >> DESC_B_SHIFT) & 1;
|
640 | 05330448 | aliguori | lhs->s = (flags & DESC_S_MASK) != 0;
|
641 | 05330448 | aliguori | lhs->l = (flags >> DESC_L_SHIFT) & 1;
|
642 | 05330448 | aliguori | lhs->g = (flags & DESC_G_MASK) != 0;
|
643 | 05330448 | aliguori | lhs->avl = (flags & DESC_AVL_MASK) != 0;
|
644 | 05330448 | aliguori | lhs->unusable = 0;
|
645 | 05330448 | aliguori | } |
646 | 05330448 | aliguori | |
647 | 05330448 | aliguori | static void get_seg(SegmentCache *lhs, const struct kvm_segment *rhs) |
648 | 05330448 | aliguori | { |
649 | 05330448 | aliguori | lhs->selector = rhs->selector; |
650 | 05330448 | aliguori | lhs->base = rhs->base; |
651 | 05330448 | aliguori | lhs->limit = rhs->limit; |
652 | b9bec74b | Jan Kiszka | lhs->flags = (rhs->type << DESC_TYPE_SHIFT) | |
653 | b9bec74b | Jan Kiszka | (rhs->present * DESC_P_MASK) | |
654 | b9bec74b | Jan Kiszka | (rhs->dpl << DESC_DPL_SHIFT) | |
655 | b9bec74b | Jan Kiszka | (rhs->db << DESC_B_SHIFT) | |
656 | b9bec74b | Jan Kiszka | (rhs->s * DESC_S_MASK) | |
657 | b9bec74b | Jan Kiszka | (rhs->l << DESC_L_SHIFT) | |
658 | b9bec74b | Jan Kiszka | (rhs->g * DESC_G_MASK) | |
659 | b9bec74b | Jan Kiszka | (rhs->avl * DESC_AVL_MASK); |
660 | 05330448 | aliguori | } |
661 | 05330448 | aliguori | |
662 | 05330448 | aliguori | static void kvm_getput_reg(__u64 *kvm_reg, target_ulong *qemu_reg, int set) |
663 | 05330448 | aliguori | { |
664 | b9bec74b | Jan Kiszka | if (set) {
|
665 | 05330448 | aliguori | *kvm_reg = *qemu_reg; |
666 | b9bec74b | Jan Kiszka | } else {
|
667 | 05330448 | aliguori | *qemu_reg = *kvm_reg; |
668 | b9bec74b | Jan Kiszka | } |
669 | 05330448 | aliguori | } |
670 | 05330448 | aliguori | |
671 | 05330448 | aliguori | static int kvm_getput_regs(CPUState *env, int set) |
672 | 05330448 | aliguori | { |
673 | 05330448 | aliguori | struct kvm_regs regs;
|
674 | 05330448 | aliguori | int ret = 0; |
675 | 05330448 | aliguori | |
676 | 05330448 | aliguori | if (!set) {
|
677 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_REGS, ®s); |
678 | b9bec74b | Jan Kiszka | if (ret < 0) { |
679 | 05330448 | aliguori | return ret;
|
680 | b9bec74b | Jan Kiszka | } |
681 | 05330448 | aliguori | } |
682 | 05330448 | aliguori | |
683 | 05330448 | aliguori | kvm_getput_reg(®s.rax, &env->regs[R_EAX], set); |
684 | 05330448 | aliguori | kvm_getput_reg(®s.rbx, &env->regs[R_EBX], set); |
685 | 05330448 | aliguori | kvm_getput_reg(®s.rcx, &env->regs[R_ECX], set); |
686 | 05330448 | aliguori | kvm_getput_reg(®s.rdx, &env->regs[R_EDX], set); |
687 | 05330448 | aliguori | kvm_getput_reg(®s.rsi, &env->regs[R_ESI], set); |
688 | 05330448 | aliguori | kvm_getput_reg(®s.rdi, &env->regs[R_EDI], set); |
689 | 05330448 | aliguori | kvm_getput_reg(®s.rsp, &env->regs[R_ESP], set); |
690 | 05330448 | aliguori | kvm_getput_reg(®s.rbp, &env->regs[R_EBP], set); |
691 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
692 | 05330448 | aliguori | kvm_getput_reg(®s.r8, &env->regs[8], set);
|
693 | 05330448 | aliguori | kvm_getput_reg(®s.r9, &env->regs[9], set);
|
694 | 05330448 | aliguori | kvm_getput_reg(®s.r10, &env->regs[10], set);
|
695 | 05330448 | aliguori | kvm_getput_reg(®s.r11, &env->regs[11], set);
|
696 | 05330448 | aliguori | kvm_getput_reg(®s.r12, &env->regs[12], set);
|
697 | 05330448 | aliguori | kvm_getput_reg(®s.r13, &env->regs[13], set);
|
698 | 05330448 | aliguori | kvm_getput_reg(®s.r14, &env->regs[14], set);
|
699 | 05330448 | aliguori | kvm_getput_reg(®s.r15, &env->regs[15], set);
|
700 | 05330448 | aliguori | #endif
|
701 | 05330448 | aliguori | |
702 | 05330448 | aliguori | kvm_getput_reg(®s.rflags, &env->eflags, set); |
703 | 05330448 | aliguori | kvm_getput_reg(®s.rip, &env->eip, set); |
704 | 05330448 | aliguori | |
705 | b9bec74b | Jan Kiszka | if (set) {
|
706 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_SET_REGS, ®s); |
707 | b9bec74b | Jan Kiszka | } |
708 | 05330448 | aliguori | |
709 | 05330448 | aliguori | return ret;
|
710 | 05330448 | aliguori | } |
711 | 05330448 | aliguori | |
712 | 05330448 | aliguori | static int kvm_put_fpu(CPUState *env) |
713 | 05330448 | aliguori | { |
714 | 05330448 | aliguori | struct kvm_fpu fpu;
|
715 | 05330448 | aliguori | int i;
|
716 | 05330448 | aliguori | |
717 | 05330448 | aliguori | memset(&fpu, 0, sizeof fpu); |
718 | 05330448 | aliguori | fpu.fsw = env->fpus & ~(7 << 11); |
719 | 05330448 | aliguori | fpu.fsw |= (env->fpstt & 7) << 11; |
720 | 05330448 | aliguori | fpu.fcw = env->fpuc; |
721 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
722 | b9bec74b | Jan Kiszka | fpu.ftwx |= (!env->fptags[i]) << i; |
723 | b9bec74b | Jan Kiszka | } |
724 | 05330448 | aliguori | memcpy(fpu.fpr, env->fpregs, sizeof env->fpregs);
|
725 | 05330448 | aliguori | memcpy(fpu.xmm, env->xmm_regs, sizeof env->xmm_regs);
|
726 | 05330448 | aliguori | fpu.mxcsr = env->mxcsr; |
727 | 05330448 | aliguori | |
728 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_FPU, &fpu);
|
729 | 05330448 | aliguori | } |
730 | 05330448 | aliguori | |
731 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XSAVE
|
732 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RIP 2 |
733 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RDP 4 |
734 | f1665b21 | Sheng Yang | #define XSAVE_MXCSR 6 |
735 | f1665b21 | Sheng Yang | #define XSAVE_ST_SPACE 8 |
736 | f1665b21 | Sheng Yang | #define XSAVE_XMM_SPACE 40 |
737 | f1665b21 | Sheng Yang | #define XSAVE_XSTATE_BV 128 |
738 | f1665b21 | Sheng Yang | #define XSAVE_YMMH_SPACE 144 |
739 | f1665b21 | Sheng Yang | #endif
|
740 | f1665b21 | Sheng Yang | |
741 | f1665b21 | Sheng Yang | static int kvm_put_xsave(CPUState *env) |
742 | f1665b21 | Sheng Yang | { |
743 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XSAVE
|
744 | 0f53994f | Marcelo Tosatti | int i, r;
|
745 | f1665b21 | Sheng Yang | struct kvm_xsave* xsave;
|
746 | f1665b21 | Sheng Yang | uint16_t cwd, swd, twd, fop; |
747 | f1665b21 | Sheng Yang | |
748 | b9bec74b | Jan Kiszka | if (!kvm_has_xsave()) {
|
749 | f1665b21 | Sheng Yang | return kvm_put_fpu(env);
|
750 | b9bec74b | Jan Kiszka | } |
751 | f1665b21 | Sheng Yang | |
752 | f1665b21 | Sheng Yang | xsave = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
753 | f1665b21 | Sheng Yang | memset(xsave, 0, sizeof(struct kvm_xsave)); |
754 | f1665b21 | Sheng Yang | cwd = swd = twd = fop = 0;
|
755 | f1665b21 | Sheng Yang | swd = env->fpus & ~(7 << 11); |
756 | f1665b21 | Sheng Yang | swd |= (env->fpstt & 7) << 11; |
757 | f1665b21 | Sheng Yang | cwd = env->fpuc; |
758 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
759 | f1665b21 | Sheng Yang | twd |= (!env->fptags[i]) << i; |
760 | b9bec74b | Jan Kiszka | } |
761 | f1665b21 | Sheng Yang | xsave->region[0] = (uint32_t)(swd << 16) + cwd; |
762 | f1665b21 | Sheng Yang | xsave->region[1] = (uint32_t)(fop << 16) + twd; |
763 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs, |
764 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
765 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_XMM_SPACE], env->xmm_regs, |
766 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
767 | f1665b21 | Sheng Yang | xsave->region[XSAVE_MXCSR] = env->mxcsr; |
768 | f1665b21 | Sheng Yang | *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV] = env->xstate_bv; |
769 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_YMMH_SPACE], env->ymmh_regs, |
770 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
771 | 0f53994f | Marcelo Tosatti | r = kvm_vcpu_ioctl(env, KVM_SET_XSAVE, xsave); |
772 | 0f53994f | Marcelo Tosatti | qemu_free(xsave); |
773 | 0f53994f | Marcelo Tosatti | return r;
|
774 | f1665b21 | Sheng Yang | #else
|
775 | f1665b21 | Sheng Yang | return kvm_put_fpu(env);
|
776 | f1665b21 | Sheng Yang | #endif
|
777 | f1665b21 | Sheng Yang | } |
778 | f1665b21 | Sheng Yang | |
779 | f1665b21 | Sheng Yang | static int kvm_put_xcrs(CPUState *env) |
780 | f1665b21 | Sheng Yang | { |
781 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XCRS
|
782 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
783 | f1665b21 | Sheng Yang | |
784 | b9bec74b | Jan Kiszka | if (!kvm_has_xcrs()) {
|
785 | f1665b21 | Sheng Yang | return 0; |
786 | b9bec74b | Jan Kiszka | } |
787 | f1665b21 | Sheng Yang | |
788 | f1665b21 | Sheng Yang | xcrs.nr_xcrs = 1;
|
789 | f1665b21 | Sheng Yang | xcrs.flags = 0;
|
790 | f1665b21 | Sheng Yang | xcrs.xcrs[0].xcr = 0; |
791 | f1665b21 | Sheng Yang | xcrs.xcrs[0].value = env->xcr0;
|
792 | f1665b21 | Sheng Yang | return kvm_vcpu_ioctl(env, KVM_SET_XCRS, &xcrs);
|
793 | f1665b21 | Sheng Yang | #else
|
794 | f1665b21 | Sheng Yang | return 0; |
795 | f1665b21 | Sheng Yang | #endif
|
796 | f1665b21 | Sheng Yang | } |
797 | f1665b21 | Sheng Yang | |
798 | 05330448 | aliguori | static int kvm_put_sregs(CPUState *env) |
799 | 05330448 | aliguori | { |
800 | 05330448 | aliguori | struct kvm_sregs sregs;
|
801 | 05330448 | aliguori | |
802 | 0e607a80 | Jan Kiszka | memset(sregs.interrupt_bitmap, 0, sizeof(sregs.interrupt_bitmap)); |
803 | 0e607a80 | Jan Kiszka | if (env->interrupt_injected >= 0) { |
804 | 0e607a80 | Jan Kiszka | sregs.interrupt_bitmap[env->interrupt_injected / 64] |=
|
805 | 0e607a80 | Jan Kiszka | (uint64_t)1 << (env->interrupt_injected % 64); |
806 | 0e607a80 | Jan Kiszka | } |
807 | 05330448 | aliguori | |
808 | 05330448 | aliguori | if ((env->eflags & VM_MASK)) {
|
809 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.cs, &env->segs[R_CS]); |
810 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.ds, &env->segs[R_DS]); |
811 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.es, &env->segs[R_ES]); |
812 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.fs, &env->segs[R_FS]); |
813 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.gs, &env->segs[R_GS]); |
814 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.ss, &env->segs[R_SS]); |
815 | 05330448 | aliguori | } else {
|
816 | b9bec74b | Jan Kiszka | set_seg(&sregs.cs, &env->segs[R_CS]); |
817 | b9bec74b | Jan Kiszka | set_seg(&sregs.ds, &env->segs[R_DS]); |
818 | b9bec74b | Jan Kiszka | set_seg(&sregs.es, &env->segs[R_ES]); |
819 | b9bec74b | Jan Kiszka | set_seg(&sregs.fs, &env->segs[R_FS]); |
820 | b9bec74b | Jan Kiszka | set_seg(&sregs.gs, &env->segs[R_GS]); |
821 | b9bec74b | Jan Kiszka | set_seg(&sregs.ss, &env->segs[R_SS]); |
822 | 05330448 | aliguori | } |
823 | 05330448 | aliguori | |
824 | 05330448 | aliguori | set_seg(&sregs.tr, &env->tr); |
825 | 05330448 | aliguori | set_seg(&sregs.ldt, &env->ldt); |
826 | 05330448 | aliguori | |
827 | 05330448 | aliguori | sregs.idt.limit = env->idt.limit; |
828 | 05330448 | aliguori | sregs.idt.base = env->idt.base; |
829 | 05330448 | aliguori | sregs.gdt.limit = env->gdt.limit; |
830 | 05330448 | aliguori | sregs.gdt.base = env->gdt.base; |
831 | 05330448 | aliguori | |
832 | 05330448 | aliguori | sregs.cr0 = env->cr[0];
|
833 | 05330448 | aliguori | sregs.cr2 = env->cr[2];
|
834 | 05330448 | aliguori | sregs.cr3 = env->cr[3];
|
835 | 05330448 | aliguori | sregs.cr4 = env->cr[4];
|
836 | 05330448 | aliguori | |
837 | 4a942cea | Blue Swirl | sregs.cr8 = cpu_get_apic_tpr(env->apic_state); |
838 | 4a942cea | Blue Swirl | sregs.apic_base = cpu_get_apic_base(env->apic_state); |
839 | 05330448 | aliguori | |
840 | 05330448 | aliguori | sregs.efer = env->efer; |
841 | 05330448 | aliguori | |
842 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_SREGS, &sregs);
|
843 | 05330448 | aliguori | } |
844 | 05330448 | aliguori | |
845 | 05330448 | aliguori | static void kvm_msr_entry_set(struct kvm_msr_entry *entry, |
846 | 05330448 | aliguori | uint32_t index, uint64_t value) |
847 | 05330448 | aliguori | { |
848 | 05330448 | aliguori | entry->index = index; |
849 | 05330448 | aliguori | entry->data = value; |
850 | 05330448 | aliguori | } |
851 | 05330448 | aliguori | |
852 | ea643051 | Jan Kiszka | static int kvm_put_msrs(CPUState *env, int level) |
853 | 05330448 | aliguori | { |
854 | 05330448 | aliguori | struct {
|
855 | 05330448 | aliguori | struct kvm_msrs info;
|
856 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
857 | 05330448 | aliguori | } msr_data; |
858 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
859 | d8da8574 | Hidetoshi Seto | int n = 0; |
860 | 05330448 | aliguori | |
861 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_CS, env->sysenter_cs); |
862 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_ESP, env->sysenter_esp); |
863 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_EIP, env->sysenter_eip); |
864 | 0c03266a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_PAT, env->pat); |
865 | c3a3a7d3 | Jan Kiszka | if (has_msr_star) {
|
866 | b9bec74b | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_STAR, env->star); |
867 | b9bec74b | Jan Kiszka | } |
868 | c3a3a7d3 | Jan Kiszka | if (has_msr_hsave_pa) {
|
869 | 75b10c43 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_VM_HSAVE_PA, env->vm_hsave); |
870 | b9bec74b | Jan Kiszka | } |
871 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
872 | 25d2e361 | Marcelo Tosatti | if (lm_capable_kernel) {
|
873 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_CSTAR, env->cstar); |
874 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_KERNELGSBASE, env->kernelgsbase); |
875 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_FMASK, env->fmask); |
876 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_LSTAR, env->lstar); |
877 | 25d2e361 | Marcelo Tosatti | } |
878 | 05330448 | aliguori | #endif
|
879 | ea643051 | Jan Kiszka | if (level == KVM_PUT_FULL_STATE) {
|
880 | 384331a6 | Marcelo Tosatti | /*
|
881 | 384331a6 | Marcelo Tosatti | * KVM is yet unable to synchronize TSC values of multiple VCPUs on
|
882 | 384331a6 | Marcelo Tosatti | * writeback. Until this is fixed, we only write the offset to SMP
|
883 | 384331a6 | Marcelo Tosatti | * guests after migration, desynchronizing the VCPUs, but avoiding
|
884 | 384331a6 | Marcelo Tosatti | * huge jump-backs that would occur without any writeback at all.
|
885 | 384331a6 | Marcelo Tosatti | */
|
886 | 384331a6 | Marcelo Tosatti | if (smp_cpus == 1 || env->tsc != 0) { |
887 | 384331a6 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_IA32_TSC, env->tsc); |
888 | 384331a6 | Marcelo Tosatti | } |
889 | ff5c186b | Jan Kiszka | } |
890 | ff5c186b | Jan Kiszka | /*
|
891 | ff5c186b | Jan Kiszka | * The following paravirtual MSRs have side effects on the guest or are
|
892 | ff5c186b | Jan Kiszka | * too heavy for normal writeback. Limit them to reset or full state
|
893 | ff5c186b | Jan Kiszka | * updates.
|
894 | ff5c186b | Jan Kiszka | */
|
895 | ff5c186b | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
896 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_SYSTEM_TIME, |
897 | ea643051 | Jan Kiszka | env->system_time_msr); |
898 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_WALL_CLOCK, env->wall_clock_msr); |
899 | 521f0798 | Jan Kiszka | #if defined(CONFIG_KVM_PARA) && defined(KVM_CAP_ASYNC_PF)
|
900 | c5999bfc | Jan Kiszka | if (has_msr_async_pf_en) {
|
901 | c5999bfc | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_ASYNC_PF_EN, |
902 | c5999bfc | Jan Kiszka | env->async_pf_en_msr); |
903 | c5999bfc | Jan Kiszka | } |
904 | f6584ee2 | Gleb Natapov | #endif
|
905 | ea643051 | Jan Kiszka | } |
906 | 57780495 | Marcelo Tosatti | #ifdef KVM_CAP_MCE
|
907 | 57780495 | Marcelo Tosatti | if (env->mcg_cap) {
|
908 | d8da8574 | Hidetoshi Seto | int i;
|
909 | b9bec74b | Jan Kiszka | |
910 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MCG_STATUS, env->mcg_status); |
911 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MCG_CTL, env->mcg_ctl); |
912 | c34d440a | Jan Kiszka | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
913 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MC0_CTL + i, env->mce_banks[i]); |
914 | 57780495 | Marcelo Tosatti | } |
915 | 57780495 | Marcelo Tosatti | } |
916 | 57780495 | Marcelo Tosatti | #endif
|
917 | 1a03675d | Glauber Costa | |
918 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
919 | 05330448 | aliguori | |
920 | 05330448 | aliguori | return kvm_vcpu_ioctl(env, KVM_SET_MSRS, &msr_data);
|
921 | 05330448 | aliguori | |
922 | 05330448 | aliguori | } |
923 | 05330448 | aliguori | |
924 | 05330448 | aliguori | |
925 | 05330448 | aliguori | static int kvm_get_fpu(CPUState *env) |
926 | 05330448 | aliguori | { |
927 | 05330448 | aliguori | struct kvm_fpu fpu;
|
928 | 05330448 | aliguori | int i, ret;
|
929 | 05330448 | aliguori | |
930 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_FPU, &fpu); |
931 | b9bec74b | Jan Kiszka | if (ret < 0) { |
932 | 05330448 | aliguori | return ret;
|
933 | b9bec74b | Jan Kiszka | } |
934 | 05330448 | aliguori | |
935 | 05330448 | aliguori | env->fpstt = (fpu.fsw >> 11) & 7; |
936 | 05330448 | aliguori | env->fpus = fpu.fsw; |
937 | 05330448 | aliguori | env->fpuc = fpu.fcw; |
938 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
939 | b9bec74b | Jan Kiszka | env->fptags[i] = !((fpu.ftwx >> i) & 1);
|
940 | b9bec74b | Jan Kiszka | } |
941 | 05330448 | aliguori | memcpy(env->fpregs, fpu.fpr, sizeof env->fpregs);
|
942 | 05330448 | aliguori | memcpy(env->xmm_regs, fpu.xmm, sizeof env->xmm_regs);
|
943 | 05330448 | aliguori | env->mxcsr = fpu.mxcsr; |
944 | 05330448 | aliguori | |
945 | 05330448 | aliguori | return 0; |
946 | 05330448 | aliguori | } |
947 | 05330448 | aliguori | |
948 | f1665b21 | Sheng Yang | static int kvm_get_xsave(CPUState *env) |
949 | f1665b21 | Sheng Yang | { |
950 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XSAVE
|
951 | f1665b21 | Sheng Yang | struct kvm_xsave* xsave;
|
952 | f1665b21 | Sheng Yang | int ret, i;
|
953 | f1665b21 | Sheng Yang | uint16_t cwd, swd, twd, fop; |
954 | f1665b21 | Sheng Yang | |
955 | b9bec74b | Jan Kiszka | if (!kvm_has_xsave()) {
|
956 | f1665b21 | Sheng Yang | return kvm_get_fpu(env);
|
957 | b9bec74b | Jan Kiszka | } |
958 | f1665b21 | Sheng Yang | |
959 | f1665b21 | Sheng Yang | xsave = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
960 | f1665b21 | Sheng Yang | ret = kvm_vcpu_ioctl(env, KVM_GET_XSAVE, xsave); |
961 | 0f53994f | Marcelo Tosatti | if (ret < 0) { |
962 | 0f53994f | Marcelo Tosatti | qemu_free(xsave); |
963 | f1665b21 | Sheng Yang | return ret;
|
964 | 0f53994f | Marcelo Tosatti | } |
965 | f1665b21 | Sheng Yang | |
966 | f1665b21 | Sheng Yang | cwd = (uint16_t)xsave->region[0];
|
967 | f1665b21 | Sheng Yang | swd = (uint16_t)(xsave->region[0] >> 16); |
968 | f1665b21 | Sheng Yang | twd = (uint16_t)xsave->region[1];
|
969 | f1665b21 | Sheng Yang | fop = (uint16_t)(xsave->region[1] >> 16); |
970 | f1665b21 | Sheng Yang | env->fpstt = (swd >> 11) & 7; |
971 | f1665b21 | Sheng Yang | env->fpus = swd; |
972 | f1665b21 | Sheng Yang | env->fpuc = cwd; |
973 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
974 | f1665b21 | Sheng Yang | env->fptags[i] = !((twd >> i) & 1);
|
975 | b9bec74b | Jan Kiszka | } |
976 | f1665b21 | Sheng Yang | env->mxcsr = xsave->region[XSAVE_MXCSR]; |
977 | f1665b21 | Sheng Yang | memcpy(env->fpregs, &xsave->region[XSAVE_ST_SPACE], |
978 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
979 | f1665b21 | Sheng Yang | memcpy(env->xmm_regs, &xsave->region[XSAVE_XMM_SPACE], |
980 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
981 | f1665b21 | Sheng Yang | env->xstate_bv = *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV]; |
982 | f1665b21 | Sheng Yang | memcpy(env->ymmh_regs, &xsave->region[XSAVE_YMMH_SPACE], |
983 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
984 | 0f53994f | Marcelo Tosatti | qemu_free(xsave); |
985 | f1665b21 | Sheng Yang | return 0; |
986 | f1665b21 | Sheng Yang | #else
|
987 | f1665b21 | Sheng Yang | return kvm_get_fpu(env);
|
988 | f1665b21 | Sheng Yang | #endif
|
989 | f1665b21 | Sheng Yang | } |
990 | f1665b21 | Sheng Yang | |
991 | f1665b21 | Sheng Yang | static int kvm_get_xcrs(CPUState *env) |
992 | f1665b21 | Sheng Yang | { |
993 | f1665b21 | Sheng Yang | #ifdef KVM_CAP_XCRS
|
994 | f1665b21 | Sheng Yang | int i, ret;
|
995 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
996 | f1665b21 | Sheng Yang | |
997 | b9bec74b | Jan Kiszka | if (!kvm_has_xcrs()) {
|
998 | f1665b21 | Sheng Yang | return 0; |
999 | b9bec74b | Jan Kiszka | } |
1000 | f1665b21 | Sheng Yang | |
1001 | f1665b21 | Sheng Yang | ret = kvm_vcpu_ioctl(env, KVM_GET_XCRS, &xcrs); |
1002 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1003 | f1665b21 | Sheng Yang | return ret;
|
1004 | b9bec74b | Jan Kiszka | } |
1005 | f1665b21 | Sheng Yang | |
1006 | b9bec74b | Jan Kiszka | for (i = 0; i < xcrs.nr_xcrs; i++) { |
1007 | f1665b21 | Sheng Yang | /* Only support xcr0 now */
|
1008 | f1665b21 | Sheng Yang | if (xcrs.xcrs[0].xcr == 0) { |
1009 | f1665b21 | Sheng Yang | env->xcr0 = xcrs.xcrs[0].value;
|
1010 | f1665b21 | Sheng Yang | break;
|
1011 | f1665b21 | Sheng Yang | } |
1012 | b9bec74b | Jan Kiszka | } |
1013 | f1665b21 | Sheng Yang | return 0; |
1014 | f1665b21 | Sheng Yang | #else
|
1015 | f1665b21 | Sheng Yang | return 0; |
1016 | f1665b21 | Sheng Yang | #endif
|
1017 | f1665b21 | Sheng Yang | } |
1018 | f1665b21 | Sheng Yang | |
1019 | 05330448 | aliguori | static int kvm_get_sregs(CPUState *env) |
1020 | 05330448 | aliguori | { |
1021 | 05330448 | aliguori | struct kvm_sregs sregs;
|
1022 | 05330448 | aliguori | uint32_t hflags; |
1023 | 0e607a80 | Jan Kiszka | int bit, i, ret;
|
1024 | 05330448 | aliguori | |
1025 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_SREGS, &sregs); |
1026 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1027 | 05330448 | aliguori | return ret;
|
1028 | b9bec74b | Jan Kiszka | } |
1029 | 05330448 | aliguori | |
1030 | 0e607a80 | Jan Kiszka | /* There can only be one pending IRQ set in the bitmap at a time, so try
|
1031 | 0e607a80 | Jan Kiszka | to find it and save its number instead (-1 for none). */
|
1032 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
1033 | 0e607a80 | Jan Kiszka | for (i = 0; i < ARRAY_SIZE(sregs.interrupt_bitmap); i++) { |
1034 | 0e607a80 | Jan Kiszka | if (sregs.interrupt_bitmap[i]) {
|
1035 | 0e607a80 | Jan Kiszka | bit = ctz64(sregs.interrupt_bitmap[i]); |
1036 | 0e607a80 | Jan Kiszka | env->interrupt_injected = i * 64 + bit;
|
1037 | 0e607a80 | Jan Kiszka | break;
|
1038 | 0e607a80 | Jan Kiszka | } |
1039 | 0e607a80 | Jan Kiszka | } |
1040 | 05330448 | aliguori | |
1041 | 05330448 | aliguori | get_seg(&env->segs[R_CS], &sregs.cs); |
1042 | 05330448 | aliguori | get_seg(&env->segs[R_DS], &sregs.ds); |
1043 | 05330448 | aliguori | get_seg(&env->segs[R_ES], &sregs.es); |
1044 | 05330448 | aliguori | get_seg(&env->segs[R_FS], &sregs.fs); |
1045 | 05330448 | aliguori | get_seg(&env->segs[R_GS], &sregs.gs); |
1046 | 05330448 | aliguori | get_seg(&env->segs[R_SS], &sregs.ss); |
1047 | 05330448 | aliguori | |
1048 | 05330448 | aliguori | get_seg(&env->tr, &sregs.tr); |
1049 | 05330448 | aliguori | get_seg(&env->ldt, &sregs.ldt); |
1050 | 05330448 | aliguori | |
1051 | 05330448 | aliguori | env->idt.limit = sregs.idt.limit; |
1052 | 05330448 | aliguori | env->idt.base = sregs.idt.base; |
1053 | 05330448 | aliguori | env->gdt.limit = sregs.gdt.limit; |
1054 | 05330448 | aliguori | env->gdt.base = sregs.gdt.base; |
1055 | 05330448 | aliguori | |
1056 | 05330448 | aliguori | env->cr[0] = sregs.cr0;
|
1057 | 05330448 | aliguori | env->cr[2] = sregs.cr2;
|
1058 | 05330448 | aliguori | env->cr[3] = sregs.cr3;
|
1059 | 05330448 | aliguori | env->cr[4] = sregs.cr4;
|
1060 | 05330448 | aliguori | |
1061 | 4a942cea | Blue Swirl | cpu_set_apic_base(env->apic_state, sregs.apic_base); |
1062 | 05330448 | aliguori | |
1063 | 05330448 | aliguori | env->efer = sregs.efer; |
1064 | 4a942cea | Blue Swirl | //cpu_set_apic_tpr(env->apic_state, sregs.cr8);
|
1065 | 05330448 | aliguori | |
1066 | b9bec74b | Jan Kiszka | #define HFLAG_COPY_MASK \
|
1067 | b9bec74b | Jan Kiszka | ~( HF_CPL_MASK | HF_PE_MASK | HF_MP_MASK | HF_EM_MASK | \ |
1068 | b9bec74b | Jan Kiszka | HF_TS_MASK | HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK | \ |
1069 | b9bec74b | Jan Kiszka | HF_OSFXSR_MASK | HF_LMA_MASK | HF_CS32_MASK | \ |
1070 | b9bec74b | Jan Kiszka | HF_SS32_MASK | HF_CS64_MASK | HF_ADDSEG_MASK) |
1071 | 05330448 | aliguori | |
1072 | 05330448 | aliguori | hflags = (env->segs[R_CS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK; |
1073 | 05330448 | aliguori | hflags |= (env->cr[0] & CR0_PE_MASK) << (HF_PE_SHIFT - CR0_PE_SHIFT);
|
1074 | 05330448 | aliguori | hflags |= (env->cr[0] << (HF_MP_SHIFT - CR0_MP_SHIFT)) &
|
1075 | b9bec74b | Jan Kiszka | (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK); |
1076 | 05330448 | aliguori | hflags |= (env->eflags & (HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK)); |
1077 | 05330448 | aliguori | hflags |= (env->cr[4] & CR4_OSFXSR_MASK) <<
|
1078 | b9bec74b | Jan Kiszka | (HF_OSFXSR_SHIFT - CR4_OSFXSR_SHIFT); |
1079 | 05330448 | aliguori | |
1080 | 05330448 | aliguori | if (env->efer & MSR_EFER_LMA) {
|
1081 | 05330448 | aliguori | hflags |= HF_LMA_MASK; |
1082 | 05330448 | aliguori | } |
1083 | 05330448 | aliguori | |
1084 | 05330448 | aliguori | if ((hflags & HF_LMA_MASK) && (env->segs[R_CS].flags & DESC_L_MASK)) {
|
1085 | 05330448 | aliguori | hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK; |
1086 | 05330448 | aliguori | } else {
|
1087 | 05330448 | aliguori | hflags |= (env->segs[R_CS].flags & DESC_B_MASK) >> |
1088 | b9bec74b | Jan Kiszka | (DESC_B_SHIFT - HF_CS32_SHIFT); |
1089 | 05330448 | aliguori | hflags |= (env->segs[R_SS].flags & DESC_B_MASK) >> |
1090 | b9bec74b | Jan Kiszka | (DESC_B_SHIFT - HF_SS32_SHIFT); |
1091 | b9bec74b | Jan Kiszka | if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK) || |
1092 | b9bec74b | Jan Kiszka | !(hflags & HF_CS32_MASK)) { |
1093 | b9bec74b | Jan Kiszka | hflags |= HF_ADDSEG_MASK; |
1094 | b9bec74b | Jan Kiszka | } else {
|
1095 | b9bec74b | Jan Kiszka | hflags |= ((env->segs[R_DS].base | env->segs[R_ES].base | |
1096 | b9bec74b | Jan Kiszka | env->segs[R_SS].base) != 0) << HF_ADDSEG_SHIFT;
|
1097 | b9bec74b | Jan Kiszka | } |
1098 | 05330448 | aliguori | } |
1099 | 05330448 | aliguori | env->hflags = (env->hflags & HFLAG_COPY_MASK) | hflags; |
1100 | 05330448 | aliguori | |
1101 | 05330448 | aliguori | return 0; |
1102 | 05330448 | aliguori | } |
1103 | 05330448 | aliguori | |
1104 | 05330448 | aliguori | static int kvm_get_msrs(CPUState *env) |
1105 | 05330448 | aliguori | { |
1106 | 05330448 | aliguori | struct {
|
1107 | 05330448 | aliguori | struct kvm_msrs info;
|
1108 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
1109 | 05330448 | aliguori | } msr_data; |
1110 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
1111 | 05330448 | aliguori | int ret, i, n;
|
1112 | 05330448 | aliguori | |
1113 | 05330448 | aliguori | n = 0;
|
1114 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_CS; |
1115 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_ESP; |
1116 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_EIP; |
1117 | 0c03266a | Jan Kiszka | msrs[n++].index = MSR_PAT; |
1118 | c3a3a7d3 | Jan Kiszka | if (has_msr_star) {
|
1119 | b9bec74b | Jan Kiszka | msrs[n++].index = MSR_STAR; |
1120 | b9bec74b | Jan Kiszka | } |
1121 | c3a3a7d3 | Jan Kiszka | if (has_msr_hsave_pa) {
|
1122 | 75b10c43 | Marcelo Tosatti | msrs[n++].index = MSR_VM_HSAVE_PA; |
1123 | b9bec74b | Jan Kiszka | } |
1124 | b8cc45d6 | Glauber Costa | |
1125 | b8cc45d6 | Glauber Costa | if (!env->tsc_valid) {
|
1126 | b8cc45d6 | Glauber Costa | msrs[n++].index = MSR_IA32_TSC; |
1127 | b8cc45d6 | Glauber Costa | env->tsc_valid = !vm_running; |
1128 | b8cc45d6 | Glauber Costa | } |
1129 | b8cc45d6 | Glauber Costa | |
1130 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
1131 | 25d2e361 | Marcelo Tosatti | if (lm_capable_kernel) {
|
1132 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_CSTAR; |
1133 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_KERNELGSBASE; |
1134 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_FMASK; |
1135 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_LSTAR; |
1136 | 25d2e361 | Marcelo Tosatti | } |
1137 | 05330448 | aliguori | #endif
|
1138 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_SYSTEM_TIME; |
1139 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_WALL_CLOCK; |
1140 | 521f0798 | Jan Kiszka | #if defined(CONFIG_KVM_PARA) && defined(KVM_CAP_ASYNC_PF)
|
1141 | c5999bfc | Jan Kiszka | if (has_msr_async_pf_en) {
|
1142 | c5999bfc | Jan Kiszka | msrs[n++].index = MSR_KVM_ASYNC_PF_EN; |
1143 | c5999bfc | Jan Kiszka | } |
1144 | f6584ee2 | Gleb Natapov | #endif
|
1145 | 1a03675d | Glauber Costa | |
1146 | 57780495 | Marcelo Tosatti | #ifdef KVM_CAP_MCE
|
1147 | 57780495 | Marcelo Tosatti | if (env->mcg_cap) {
|
1148 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MCG_STATUS; |
1149 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MCG_CTL; |
1150 | b9bec74b | Jan Kiszka | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
1151 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MC0_CTL + i; |
1152 | b9bec74b | Jan Kiszka | } |
1153 | 57780495 | Marcelo Tosatti | } |
1154 | 57780495 | Marcelo Tosatti | #endif
|
1155 | 57780495 | Marcelo Tosatti | |
1156 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
1157 | 05330448 | aliguori | ret = kvm_vcpu_ioctl(env, KVM_GET_MSRS, &msr_data); |
1158 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1159 | 05330448 | aliguori | return ret;
|
1160 | b9bec74b | Jan Kiszka | } |
1161 | 05330448 | aliguori | |
1162 | 05330448 | aliguori | for (i = 0; i < ret; i++) { |
1163 | 05330448 | aliguori | switch (msrs[i].index) {
|
1164 | 05330448 | aliguori | case MSR_IA32_SYSENTER_CS:
|
1165 | 05330448 | aliguori | env->sysenter_cs = msrs[i].data; |
1166 | 05330448 | aliguori | break;
|
1167 | 05330448 | aliguori | case MSR_IA32_SYSENTER_ESP:
|
1168 | 05330448 | aliguori | env->sysenter_esp = msrs[i].data; |
1169 | 05330448 | aliguori | break;
|
1170 | 05330448 | aliguori | case MSR_IA32_SYSENTER_EIP:
|
1171 | 05330448 | aliguori | env->sysenter_eip = msrs[i].data; |
1172 | 05330448 | aliguori | break;
|
1173 | 0c03266a | Jan Kiszka | case MSR_PAT:
|
1174 | 0c03266a | Jan Kiszka | env->pat = msrs[i].data; |
1175 | 0c03266a | Jan Kiszka | break;
|
1176 | 05330448 | aliguori | case MSR_STAR:
|
1177 | 05330448 | aliguori | env->star = msrs[i].data; |
1178 | 05330448 | aliguori | break;
|
1179 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
1180 | 05330448 | aliguori | case MSR_CSTAR:
|
1181 | 05330448 | aliguori | env->cstar = msrs[i].data; |
1182 | 05330448 | aliguori | break;
|
1183 | 05330448 | aliguori | case MSR_KERNELGSBASE:
|
1184 | 05330448 | aliguori | env->kernelgsbase = msrs[i].data; |
1185 | 05330448 | aliguori | break;
|
1186 | 05330448 | aliguori | case MSR_FMASK:
|
1187 | 05330448 | aliguori | env->fmask = msrs[i].data; |
1188 | 05330448 | aliguori | break;
|
1189 | 05330448 | aliguori | case MSR_LSTAR:
|
1190 | 05330448 | aliguori | env->lstar = msrs[i].data; |
1191 | 05330448 | aliguori | break;
|
1192 | 05330448 | aliguori | #endif
|
1193 | 05330448 | aliguori | case MSR_IA32_TSC:
|
1194 | 05330448 | aliguori | env->tsc = msrs[i].data; |
1195 | 05330448 | aliguori | break;
|
1196 | aa851e36 | Marcelo Tosatti | case MSR_VM_HSAVE_PA:
|
1197 | aa851e36 | Marcelo Tosatti | env->vm_hsave = msrs[i].data; |
1198 | aa851e36 | Marcelo Tosatti | break;
|
1199 | 1a03675d | Glauber Costa | case MSR_KVM_SYSTEM_TIME:
|
1200 | 1a03675d | Glauber Costa | env->system_time_msr = msrs[i].data; |
1201 | 1a03675d | Glauber Costa | break;
|
1202 | 1a03675d | Glauber Costa | case MSR_KVM_WALL_CLOCK:
|
1203 | 1a03675d | Glauber Costa | env->wall_clock_msr = msrs[i].data; |
1204 | 1a03675d | Glauber Costa | break;
|
1205 | 57780495 | Marcelo Tosatti | #ifdef KVM_CAP_MCE
|
1206 | 57780495 | Marcelo Tosatti | case MSR_MCG_STATUS:
|
1207 | 57780495 | Marcelo Tosatti | env->mcg_status = msrs[i].data; |
1208 | 57780495 | Marcelo Tosatti | break;
|
1209 | 57780495 | Marcelo Tosatti | case MSR_MCG_CTL:
|
1210 | 57780495 | Marcelo Tosatti | env->mcg_ctl = msrs[i].data; |
1211 | 57780495 | Marcelo Tosatti | break;
|
1212 | 57780495 | Marcelo Tosatti | #endif
|
1213 | 57780495 | Marcelo Tosatti | default:
|
1214 | 57780495 | Marcelo Tosatti | #ifdef KVM_CAP_MCE
|
1215 | 57780495 | Marcelo Tosatti | if (msrs[i].index >= MSR_MC0_CTL &&
|
1216 | 57780495 | Marcelo Tosatti | msrs[i].index < MSR_MC0_CTL + (env->mcg_cap & 0xff) * 4) { |
1217 | 57780495 | Marcelo Tosatti | env->mce_banks[msrs[i].index - MSR_MC0_CTL] = msrs[i].data; |
1218 | 57780495 | Marcelo Tosatti | } |
1219 | 57780495 | Marcelo Tosatti | #endif
|
1220 | d8da8574 | Hidetoshi Seto | break;
|
1221 | 521f0798 | Jan Kiszka | #if defined(CONFIG_KVM_PARA) && defined(KVM_CAP_ASYNC_PF)
|
1222 | f6584ee2 | Gleb Natapov | case MSR_KVM_ASYNC_PF_EN:
|
1223 | f6584ee2 | Gleb Natapov | env->async_pf_en_msr = msrs[i].data; |
1224 | f6584ee2 | Gleb Natapov | break;
|
1225 | f6584ee2 | Gleb Natapov | #endif
|
1226 | 05330448 | aliguori | } |
1227 | 05330448 | aliguori | } |
1228 | 05330448 | aliguori | |
1229 | 05330448 | aliguori | return 0; |
1230 | 05330448 | aliguori | } |
1231 | 05330448 | aliguori | |
1232 | 9bdbe550 | Hollis Blanchard | static int kvm_put_mp_state(CPUState *env) |
1233 | 9bdbe550 | Hollis Blanchard | { |
1234 | 9bdbe550 | Hollis Blanchard | struct kvm_mp_state mp_state = { .mp_state = env->mp_state };
|
1235 | 9bdbe550 | Hollis Blanchard | |
1236 | 9bdbe550 | Hollis Blanchard | return kvm_vcpu_ioctl(env, KVM_SET_MP_STATE, &mp_state);
|
1237 | 9bdbe550 | Hollis Blanchard | } |
1238 | 9bdbe550 | Hollis Blanchard | |
1239 | 9bdbe550 | Hollis Blanchard | static int kvm_get_mp_state(CPUState *env) |
1240 | 9bdbe550 | Hollis Blanchard | { |
1241 | 9bdbe550 | Hollis Blanchard | struct kvm_mp_state mp_state;
|
1242 | 9bdbe550 | Hollis Blanchard | int ret;
|
1243 | 9bdbe550 | Hollis Blanchard | |
1244 | 9bdbe550 | Hollis Blanchard | ret = kvm_vcpu_ioctl(env, KVM_GET_MP_STATE, &mp_state); |
1245 | 9bdbe550 | Hollis Blanchard | if (ret < 0) { |
1246 | 9bdbe550 | Hollis Blanchard | return ret;
|
1247 | 9bdbe550 | Hollis Blanchard | } |
1248 | 9bdbe550 | Hollis Blanchard | env->mp_state = mp_state.mp_state; |
1249 | c14750e8 | Jan Kiszka | if (kvm_irqchip_in_kernel()) {
|
1250 | c14750e8 | Jan Kiszka | env->halted = (mp_state.mp_state == KVM_MP_STATE_HALTED); |
1251 | c14750e8 | Jan Kiszka | } |
1252 | 9bdbe550 | Hollis Blanchard | return 0; |
1253 | 9bdbe550 | Hollis Blanchard | } |
1254 | 9bdbe550 | Hollis Blanchard | |
1255 | ea643051 | Jan Kiszka | static int kvm_put_vcpu_events(CPUState *env, int level) |
1256 | a0fb002c | Jan Kiszka | { |
1257 | a0fb002c | Jan Kiszka | #ifdef KVM_CAP_VCPU_EVENTS
|
1258 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1259 | a0fb002c | Jan Kiszka | |
1260 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1261 | a0fb002c | Jan Kiszka | return 0; |
1262 | a0fb002c | Jan Kiszka | } |
1263 | a0fb002c | Jan Kiszka | |
1264 | 31827373 | Jan Kiszka | events.exception.injected = (env->exception_injected >= 0);
|
1265 | 31827373 | Jan Kiszka | events.exception.nr = env->exception_injected; |
1266 | a0fb002c | Jan Kiszka | events.exception.has_error_code = env->has_error_code; |
1267 | a0fb002c | Jan Kiszka | events.exception.error_code = env->error_code; |
1268 | a0fb002c | Jan Kiszka | |
1269 | a0fb002c | Jan Kiszka | events.interrupt.injected = (env->interrupt_injected >= 0);
|
1270 | a0fb002c | Jan Kiszka | events.interrupt.nr = env->interrupt_injected; |
1271 | a0fb002c | Jan Kiszka | events.interrupt.soft = env->soft_interrupt; |
1272 | a0fb002c | Jan Kiszka | |
1273 | a0fb002c | Jan Kiszka | events.nmi.injected = env->nmi_injected; |
1274 | a0fb002c | Jan Kiszka | events.nmi.pending = env->nmi_pending; |
1275 | a0fb002c | Jan Kiszka | events.nmi.masked = !!(env->hflags2 & HF2_NMI_MASK); |
1276 | a0fb002c | Jan Kiszka | |
1277 | a0fb002c | Jan Kiszka | events.sipi_vector = env->sipi_vector; |
1278 | a0fb002c | Jan Kiszka | |
1279 | ea643051 | Jan Kiszka | events.flags = 0;
|
1280 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1281 | ea643051 | Jan Kiszka | events.flags |= |
1282 | ea643051 | Jan Kiszka | KVM_VCPUEVENT_VALID_NMI_PENDING | KVM_VCPUEVENT_VALID_SIPI_VECTOR; |
1283 | ea643051 | Jan Kiszka | } |
1284 | aee028b9 | Jan Kiszka | |
1285 | a0fb002c | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_SET_VCPU_EVENTS, &events);
|
1286 | a0fb002c | Jan Kiszka | #else
|
1287 | a0fb002c | Jan Kiszka | return 0; |
1288 | a0fb002c | Jan Kiszka | #endif
|
1289 | a0fb002c | Jan Kiszka | } |
1290 | a0fb002c | Jan Kiszka | |
1291 | a0fb002c | Jan Kiszka | static int kvm_get_vcpu_events(CPUState *env) |
1292 | a0fb002c | Jan Kiszka | { |
1293 | a0fb002c | Jan Kiszka | #ifdef KVM_CAP_VCPU_EVENTS
|
1294 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1295 | a0fb002c | Jan Kiszka | int ret;
|
1296 | a0fb002c | Jan Kiszka | |
1297 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1298 | a0fb002c | Jan Kiszka | return 0; |
1299 | a0fb002c | Jan Kiszka | } |
1300 | a0fb002c | Jan Kiszka | |
1301 | a0fb002c | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_GET_VCPU_EVENTS, &events); |
1302 | a0fb002c | Jan Kiszka | if (ret < 0) { |
1303 | a0fb002c | Jan Kiszka | return ret;
|
1304 | a0fb002c | Jan Kiszka | } |
1305 | 31827373 | Jan Kiszka | env->exception_injected = |
1306 | a0fb002c | Jan Kiszka | events.exception.injected ? events.exception.nr : -1;
|
1307 | a0fb002c | Jan Kiszka | env->has_error_code = events.exception.has_error_code; |
1308 | a0fb002c | Jan Kiszka | env->error_code = events.exception.error_code; |
1309 | a0fb002c | Jan Kiszka | |
1310 | a0fb002c | Jan Kiszka | env->interrupt_injected = |
1311 | a0fb002c | Jan Kiszka | events.interrupt.injected ? events.interrupt.nr : -1;
|
1312 | a0fb002c | Jan Kiszka | env->soft_interrupt = events.interrupt.soft; |
1313 | a0fb002c | Jan Kiszka | |
1314 | a0fb002c | Jan Kiszka | env->nmi_injected = events.nmi.injected; |
1315 | a0fb002c | Jan Kiszka | env->nmi_pending = events.nmi.pending; |
1316 | a0fb002c | Jan Kiszka | if (events.nmi.masked) {
|
1317 | a0fb002c | Jan Kiszka | env->hflags2 |= HF2_NMI_MASK; |
1318 | a0fb002c | Jan Kiszka | } else {
|
1319 | a0fb002c | Jan Kiszka | env->hflags2 &= ~HF2_NMI_MASK; |
1320 | a0fb002c | Jan Kiszka | } |
1321 | a0fb002c | Jan Kiszka | |
1322 | a0fb002c | Jan Kiszka | env->sipi_vector = events.sipi_vector; |
1323 | a0fb002c | Jan Kiszka | #endif
|
1324 | a0fb002c | Jan Kiszka | |
1325 | a0fb002c | Jan Kiszka | return 0; |
1326 | a0fb002c | Jan Kiszka | } |
1327 | a0fb002c | Jan Kiszka | |
1328 | b0b1d690 | Jan Kiszka | static int kvm_guest_debug_workarounds(CPUState *env) |
1329 | b0b1d690 | Jan Kiszka | { |
1330 | b0b1d690 | Jan Kiszka | int ret = 0; |
1331 | b0b1d690 | Jan Kiszka | #ifdef KVM_CAP_SET_GUEST_DEBUG
|
1332 | b0b1d690 | Jan Kiszka | unsigned long reinject_trap = 0; |
1333 | b0b1d690 | Jan Kiszka | |
1334 | b0b1d690 | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1335 | b0b1d690 | Jan Kiszka | if (env->exception_injected == 1) { |
1336 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_DB; |
1337 | b0b1d690 | Jan Kiszka | } else if (env->exception_injected == 3) { |
1338 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_BP; |
1339 | b0b1d690 | Jan Kiszka | } |
1340 | b0b1d690 | Jan Kiszka | env->exception_injected = -1;
|
1341 | b0b1d690 | Jan Kiszka | } |
1342 | b0b1d690 | Jan Kiszka | |
1343 | b0b1d690 | Jan Kiszka | /*
|
1344 | b0b1d690 | Jan Kiszka | * Kernels before KVM_CAP_X86_ROBUST_SINGLESTEP overwrote flags.TF
|
1345 | b0b1d690 | Jan Kiszka | * injected via SET_GUEST_DEBUG while updating GP regs. Work around this
|
1346 | b0b1d690 | Jan Kiszka | * by updating the debug state once again if single-stepping is on.
|
1347 | b0b1d690 | Jan Kiszka | * Another reason to call kvm_update_guest_debug here is a pending debug
|
1348 | b0b1d690 | Jan Kiszka | * trap raise by the guest. On kernels without SET_VCPU_EVENTS we have to
|
1349 | b0b1d690 | Jan Kiszka | * reinject them via SET_GUEST_DEBUG.
|
1350 | b0b1d690 | Jan Kiszka | */
|
1351 | b0b1d690 | Jan Kiszka | if (reinject_trap ||
|
1352 | b0b1d690 | Jan Kiszka | (!kvm_has_robust_singlestep() && env->singlestep_enabled)) { |
1353 | b0b1d690 | Jan Kiszka | ret = kvm_update_guest_debug(env, reinject_trap); |
1354 | b0b1d690 | Jan Kiszka | } |
1355 | b0b1d690 | Jan Kiszka | #endif /* KVM_CAP_SET_GUEST_DEBUG */ |
1356 | b0b1d690 | Jan Kiszka | return ret;
|
1357 | b0b1d690 | Jan Kiszka | } |
1358 | b0b1d690 | Jan Kiszka | |
1359 | ff44f1a3 | Jan Kiszka | static int kvm_put_debugregs(CPUState *env) |
1360 | ff44f1a3 | Jan Kiszka | { |
1361 | ff44f1a3 | Jan Kiszka | #ifdef KVM_CAP_DEBUGREGS
|
1362 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1363 | ff44f1a3 | Jan Kiszka | int i;
|
1364 | ff44f1a3 | Jan Kiszka | |
1365 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1366 | ff44f1a3 | Jan Kiszka | return 0; |
1367 | ff44f1a3 | Jan Kiszka | } |
1368 | ff44f1a3 | Jan Kiszka | |
1369 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1370 | ff44f1a3 | Jan Kiszka | dbgregs.db[i] = env->dr[i]; |
1371 | ff44f1a3 | Jan Kiszka | } |
1372 | ff44f1a3 | Jan Kiszka | dbgregs.dr6 = env->dr[6];
|
1373 | ff44f1a3 | Jan Kiszka | dbgregs.dr7 = env->dr[7];
|
1374 | ff44f1a3 | Jan Kiszka | dbgregs.flags = 0;
|
1375 | ff44f1a3 | Jan Kiszka | |
1376 | ff44f1a3 | Jan Kiszka | return kvm_vcpu_ioctl(env, KVM_SET_DEBUGREGS, &dbgregs);
|
1377 | ff44f1a3 | Jan Kiszka | #else
|
1378 | ff44f1a3 | Jan Kiszka | return 0; |
1379 | ff44f1a3 | Jan Kiszka | #endif
|
1380 | ff44f1a3 | Jan Kiszka | } |
1381 | ff44f1a3 | Jan Kiszka | |
1382 | ff44f1a3 | Jan Kiszka | static int kvm_get_debugregs(CPUState *env) |
1383 | ff44f1a3 | Jan Kiszka | { |
1384 | ff44f1a3 | Jan Kiszka | #ifdef KVM_CAP_DEBUGREGS
|
1385 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1386 | ff44f1a3 | Jan Kiszka | int i, ret;
|
1387 | ff44f1a3 | Jan Kiszka | |
1388 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1389 | ff44f1a3 | Jan Kiszka | return 0; |
1390 | ff44f1a3 | Jan Kiszka | } |
1391 | ff44f1a3 | Jan Kiszka | |
1392 | ff44f1a3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_GET_DEBUGREGS, &dbgregs); |
1393 | ff44f1a3 | Jan Kiszka | if (ret < 0) { |
1394 | b9bec74b | Jan Kiszka | return ret;
|
1395 | ff44f1a3 | Jan Kiszka | } |
1396 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1397 | ff44f1a3 | Jan Kiszka | env->dr[i] = dbgregs.db[i]; |
1398 | ff44f1a3 | Jan Kiszka | } |
1399 | ff44f1a3 | Jan Kiszka | env->dr[4] = env->dr[6] = dbgregs.dr6; |
1400 | ff44f1a3 | Jan Kiszka | env->dr[5] = env->dr[7] = dbgregs.dr7; |
1401 | ff44f1a3 | Jan Kiszka | #endif
|
1402 | ff44f1a3 | Jan Kiszka | |
1403 | ff44f1a3 | Jan Kiszka | return 0; |
1404 | ff44f1a3 | Jan Kiszka | } |
1405 | ff44f1a3 | Jan Kiszka | |
1406 | ea375f9a | Jan Kiszka | int kvm_arch_put_registers(CPUState *env, int level) |
1407 | 05330448 | aliguori | { |
1408 | 05330448 | aliguori | int ret;
|
1409 | 05330448 | aliguori | |
1410 | b7680cb6 | Jan Kiszka | assert(cpu_is_stopped(env) || qemu_cpu_is_self(env)); |
1411 | dbaa07c4 | Jan Kiszka | |
1412 | 05330448 | aliguori | ret = kvm_getput_regs(env, 1);
|
1413 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1414 | 05330448 | aliguori | return ret;
|
1415 | b9bec74b | Jan Kiszka | } |
1416 | f1665b21 | Sheng Yang | ret = kvm_put_xsave(env); |
1417 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1418 | f1665b21 | Sheng Yang | return ret;
|
1419 | b9bec74b | Jan Kiszka | } |
1420 | f1665b21 | Sheng Yang | ret = kvm_put_xcrs(env); |
1421 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1422 | 05330448 | aliguori | return ret;
|
1423 | b9bec74b | Jan Kiszka | } |
1424 | 05330448 | aliguori | ret = kvm_put_sregs(env); |
1425 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1426 | 05330448 | aliguori | return ret;
|
1427 | b9bec74b | Jan Kiszka | } |
1428 | ab443475 | Jan Kiszka | /* must be before kvm_put_msrs */
|
1429 | ab443475 | Jan Kiszka | ret = kvm_inject_mce_oldstyle(env); |
1430 | ab443475 | Jan Kiszka | if (ret < 0) { |
1431 | ab443475 | Jan Kiszka | return ret;
|
1432 | ab443475 | Jan Kiszka | } |
1433 | ea643051 | Jan Kiszka | ret = kvm_put_msrs(env, level); |
1434 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1435 | 05330448 | aliguori | return ret;
|
1436 | b9bec74b | Jan Kiszka | } |
1437 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1438 | ea643051 | Jan Kiszka | ret = kvm_put_mp_state(env); |
1439 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1440 | ea643051 | Jan Kiszka | return ret;
|
1441 | b9bec74b | Jan Kiszka | } |
1442 | ea643051 | Jan Kiszka | } |
1443 | ea643051 | Jan Kiszka | ret = kvm_put_vcpu_events(env, level); |
1444 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1445 | a0fb002c | Jan Kiszka | return ret;
|
1446 | b9bec74b | Jan Kiszka | } |
1447 | 0d75a9ec | Jan Kiszka | ret = kvm_put_debugregs(env); |
1448 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1449 | b0b1d690 | Jan Kiszka | return ret;
|
1450 | b9bec74b | Jan Kiszka | } |
1451 | b0b1d690 | Jan Kiszka | /* must be last */
|
1452 | b0b1d690 | Jan Kiszka | ret = kvm_guest_debug_workarounds(env); |
1453 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1454 | ff44f1a3 | Jan Kiszka | return ret;
|
1455 | b9bec74b | Jan Kiszka | } |
1456 | 05330448 | aliguori | return 0; |
1457 | 05330448 | aliguori | } |
1458 | 05330448 | aliguori | |
1459 | 05330448 | aliguori | int kvm_arch_get_registers(CPUState *env)
|
1460 | 05330448 | aliguori | { |
1461 | 05330448 | aliguori | int ret;
|
1462 | 05330448 | aliguori | |
1463 | b7680cb6 | Jan Kiszka | assert(cpu_is_stopped(env) || qemu_cpu_is_self(env)); |
1464 | dbaa07c4 | Jan Kiszka | |
1465 | 05330448 | aliguori | ret = kvm_getput_regs(env, 0);
|
1466 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1467 | 05330448 | aliguori | return ret;
|
1468 | b9bec74b | Jan Kiszka | } |
1469 | f1665b21 | Sheng Yang | ret = kvm_get_xsave(env); |
1470 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1471 | f1665b21 | Sheng Yang | return ret;
|
1472 | b9bec74b | Jan Kiszka | } |
1473 | f1665b21 | Sheng Yang | ret = kvm_get_xcrs(env); |
1474 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1475 | 05330448 | aliguori | return ret;
|
1476 | b9bec74b | Jan Kiszka | } |
1477 | 05330448 | aliguori | ret = kvm_get_sregs(env); |
1478 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1479 | 05330448 | aliguori | return ret;
|
1480 | b9bec74b | Jan Kiszka | } |
1481 | 05330448 | aliguori | ret = kvm_get_msrs(env); |
1482 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1483 | 05330448 | aliguori | return ret;
|
1484 | b9bec74b | Jan Kiszka | } |
1485 | 5a2e3c2e | Jan Kiszka | ret = kvm_get_mp_state(env); |
1486 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1487 | 5a2e3c2e | Jan Kiszka | return ret;
|
1488 | b9bec74b | Jan Kiszka | } |
1489 | a0fb002c | Jan Kiszka | ret = kvm_get_vcpu_events(env); |
1490 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1491 | a0fb002c | Jan Kiszka | return ret;
|
1492 | b9bec74b | Jan Kiszka | } |
1493 | ff44f1a3 | Jan Kiszka | ret = kvm_get_debugregs(env); |
1494 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1495 | ff44f1a3 | Jan Kiszka | return ret;
|
1496 | b9bec74b | Jan Kiszka | } |
1497 | 05330448 | aliguori | return 0; |
1498 | 05330448 | aliguori | } |
1499 | 05330448 | aliguori | |
1500 | 7a39fe58 | Jan Kiszka | void kvm_arch_pre_run(CPUState *env, struct kvm_run *run) |
1501 | 05330448 | aliguori | { |
1502 | ce377af3 | Jan Kiszka | int ret;
|
1503 | ce377af3 | Jan Kiszka | |
1504 | 276ce815 | Lai Jiangshan | /* Inject NMI */
|
1505 | 276ce815 | Lai Jiangshan | if (env->interrupt_request & CPU_INTERRUPT_NMI) {
|
1506 | 276ce815 | Lai Jiangshan | env->interrupt_request &= ~CPU_INTERRUPT_NMI; |
1507 | 276ce815 | Lai Jiangshan | DPRINTF("injected NMI\n");
|
1508 | ce377af3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_NMI); |
1509 | ce377af3 | Jan Kiszka | if (ret < 0) { |
1510 | ce377af3 | Jan Kiszka | fprintf(stderr, "KVM: injection failed, NMI lost (%s)\n",
|
1511 | ce377af3 | Jan Kiszka | strerror(-ret)); |
1512 | ce377af3 | Jan Kiszka | } |
1513 | 276ce815 | Lai Jiangshan | } |
1514 | 276ce815 | Lai Jiangshan | |
1515 | db1669bc | Jan Kiszka | if (!kvm_irqchip_in_kernel()) {
|
1516 | db1669bc | Jan Kiszka | /* Force the VCPU out of its inner loop to process the INIT request */
|
1517 | db1669bc | Jan Kiszka | if (env->interrupt_request & CPU_INTERRUPT_INIT) {
|
1518 | db1669bc | Jan Kiszka | env->exit_request = 1;
|
1519 | 05330448 | aliguori | } |
1520 | 05330448 | aliguori | |
1521 | db1669bc | Jan Kiszka | /* Try to inject an interrupt if the guest can accept it */
|
1522 | db1669bc | Jan Kiszka | if (run->ready_for_interrupt_injection &&
|
1523 | db1669bc | Jan Kiszka | (env->interrupt_request & CPU_INTERRUPT_HARD) && |
1524 | db1669bc | Jan Kiszka | (env->eflags & IF_MASK)) { |
1525 | db1669bc | Jan Kiszka | int irq;
|
1526 | db1669bc | Jan Kiszka | |
1527 | db1669bc | Jan Kiszka | env->interrupt_request &= ~CPU_INTERRUPT_HARD; |
1528 | db1669bc | Jan Kiszka | irq = cpu_get_pic_interrupt(env); |
1529 | db1669bc | Jan Kiszka | if (irq >= 0) { |
1530 | db1669bc | Jan Kiszka | struct kvm_interrupt intr;
|
1531 | db1669bc | Jan Kiszka | |
1532 | db1669bc | Jan Kiszka | intr.irq = irq; |
1533 | db1669bc | Jan Kiszka | DPRINTF("injected interrupt %d\n", irq);
|
1534 | ce377af3 | Jan Kiszka | ret = kvm_vcpu_ioctl(env, KVM_INTERRUPT, &intr); |
1535 | ce377af3 | Jan Kiszka | if (ret < 0) { |
1536 | ce377af3 | Jan Kiszka | fprintf(stderr, |
1537 | ce377af3 | Jan Kiszka | "KVM: injection failed, interrupt lost (%s)\n",
|
1538 | ce377af3 | Jan Kiszka | strerror(-ret)); |
1539 | ce377af3 | Jan Kiszka | } |
1540 | db1669bc | Jan Kiszka | } |
1541 | db1669bc | Jan Kiszka | } |
1542 | 05330448 | aliguori | |
1543 | db1669bc | Jan Kiszka | /* If we have an interrupt but the guest is not ready to receive an
|
1544 | db1669bc | Jan Kiszka | * interrupt, request an interrupt window exit. This will
|
1545 | db1669bc | Jan Kiszka | * cause a return to userspace as soon as the guest is ready to
|
1546 | db1669bc | Jan Kiszka | * receive interrupts. */
|
1547 | db1669bc | Jan Kiszka | if ((env->interrupt_request & CPU_INTERRUPT_HARD)) {
|
1548 | db1669bc | Jan Kiszka | run->request_interrupt_window = 1;
|
1549 | db1669bc | Jan Kiszka | } else {
|
1550 | db1669bc | Jan Kiszka | run->request_interrupt_window = 0;
|
1551 | db1669bc | Jan Kiszka | } |
1552 | db1669bc | Jan Kiszka | |
1553 | db1669bc | Jan Kiszka | DPRINTF("setting tpr\n");
|
1554 | db1669bc | Jan Kiszka | run->cr8 = cpu_get_apic_tpr(env->apic_state); |
1555 | db1669bc | Jan Kiszka | } |
1556 | 05330448 | aliguori | } |
1557 | 05330448 | aliguori | |
1558 | 7a39fe58 | Jan Kiszka | void kvm_arch_post_run(CPUState *env, struct kvm_run *run) |
1559 | 05330448 | aliguori | { |
1560 | b9bec74b | Jan Kiszka | if (run->if_flag) {
|
1561 | 05330448 | aliguori | env->eflags |= IF_MASK; |
1562 | b9bec74b | Jan Kiszka | } else {
|
1563 | 05330448 | aliguori | env->eflags &= ~IF_MASK; |
1564 | b9bec74b | Jan Kiszka | } |
1565 | 4a942cea | Blue Swirl | cpu_set_apic_tpr(env->apic_state, run->cr8); |
1566 | 4a942cea | Blue Swirl | cpu_set_apic_base(env->apic_state, run->apic_base); |
1567 | 05330448 | aliguori | } |
1568 | 05330448 | aliguori | |
1569 | 99036865 | Jan Kiszka | int kvm_arch_process_async_events(CPUState *env)
|
1570 | 0af691d7 | Marcelo Tosatti | { |
1571 | ab443475 | Jan Kiszka | if (env->interrupt_request & CPU_INTERRUPT_MCE) {
|
1572 | ab443475 | Jan Kiszka | /* We must not raise CPU_INTERRUPT_MCE if it's not supported. */
|
1573 | ab443475 | Jan Kiszka | assert(env->mcg_cap); |
1574 | ab443475 | Jan Kiszka | |
1575 | ab443475 | Jan Kiszka | env->interrupt_request &= ~CPU_INTERRUPT_MCE; |
1576 | ab443475 | Jan Kiszka | |
1577 | ab443475 | Jan Kiszka | kvm_cpu_synchronize_state(env); |
1578 | ab443475 | Jan Kiszka | |
1579 | ab443475 | Jan Kiszka | if (env->exception_injected == EXCP08_DBLE) {
|
1580 | ab443475 | Jan Kiszka | /* this means triple fault */
|
1581 | ab443475 | Jan Kiszka | qemu_system_reset_request(); |
1582 | ab443475 | Jan Kiszka | env->exit_request = 1;
|
1583 | ab443475 | Jan Kiszka | return 0; |
1584 | ab443475 | Jan Kiszka | } |
1585 | ab443475 | Jan Kiszka | env->exception_injected = EXCP12_MCHK; |
1586 | ab443475 | Jan Kiszka | env->has_error_code = 0;
|
1587 | ab443475 | Jan Kiszka | |
1588 | ab443475 | Jan Kiszka | env->halted = 0;
|
1589 | ab443475 | Jan Kiszka | if (kvm_irqchip_in_kernel() && env->mp_state == KVM_MP_STATE_HALTED) {
|
1590 | ab443475 | Jan Kiszka | env->mp_state = KVM_MP_STATE_RUNNABLE; |
1591 | ab443475 | Jan Kiszka | } |
1592 | ab443475 | Jan Kiszka | } |
1593 | ab443475 | Jan Kiszka | |
1594 | db1669bc | Jan Kiszka | if (kvm_irqchip_in_kernel()) {
|
1595 | db1669bc | Jan Kiszka | return 0; |
1596 | db1669bc | Jan Kiszka | } |
1597 | db1669bc | Jan Kiszka | |
1598 | 4601f7b0 | Jan Kiszka | if (((env->interrupt_request & CPU_INTERRUPT_HARD) &&
|
1599 | 4601f7b0 | Jan Kiszka | (env->eflags & IF_MASK)) || |
1600 | 4601f7b0 | Jan Kiszka | (env->interrupt_request & CPU_INTERRUPT_NMI)) { |
1601 | 6792a57b | Jan Kiszka | env->halted = 0;
|
1602 | 6792a57b | Jan Kiszka | } |
1603 | 0af691d7 | Marcelo Tosatti | if (env->interrupt_request & CPU_INTERRUPT_INIT) {
|
1604 | 0af691d7 | Marcelo Tosatti | kvm_cpu_synchronize_state(env); |
1605 | 0af691d7 | Marcelo Tosatti | do_cpu_init(env); |
1606 | 0af691d7 | Marcelo Tosatti | } |
1607 | 0af691d7 | Marcelo Tosatti | if (env->interrupt_request & CPU_INTERRUPT_SIPI) {
|
1608 | 0af691d7 | Marcelo Tosatti | kvm_cpu_synchronize_state(env); |
1609 | 0af691d7 | Marcelo Tosatti | do_cpu_sipi(env); |
1610 | 0af691d7 | Marcelo Tosatti | } |
1611 | 0af691d7 | Marcelo Tosatti | |
1612 | 0af691d7 | Marcelo Tosatti | return env->halted;
|
1613 | 0af691d7 | Marcelo Tosatti | } |
1614 | 0af691d7 | Marcelo Tosatti | |
1615 | 05330448 | aliguori | static int kvm_handle_halt(CPUState *env) |
1616 | 05330448 | aliguori | { |
1617 | 05330448 | aliguori | if (!((env->interrupt_request & CPU_INTERRUPT_HARD) &&
|
1618 | 05330448 | aliguori | (env->eflags & IF_MASK)) && |
1619 | 05330448 | aliguori | !(env->interrupt_request & CPU_INTERRUPT_NMI)) { |
1620 | 05330448 | aliguori | env->halted = 1;
|
1621 | bb4ea393 | Jan Kiszka | return EXCP_HLT;
|
1622 | 05330448 | aliguori | } |
1623 | 05330448 | aliguori | |
1624 | bb4ea393 | Jan Kiszka | return 0; |
1625 | 05330448 | aliguori | } |
1626 | 05330448 | aliguori | |
1627 | bb44e0d1 | Jan Kiszka | static bool host_supports_vmx(void) |
1628 | bb44e0d1 | Jan Kiszka | { |
1629 | bb44e0d1 | Jan Kiszka | uint32_t ecx, unused; |
1630 | bb44e0d1 | Jan Kiszka | |
1631 | bb44e0d1 | Jan Kiszka | host_cpuid(1, 0, &unused, &unused, &ecx, &unused); |
1632 | bb44e0d1 | Jan Kiszka | return ecx & CPUID_EXT_VMX;
|
1633 | bb44e0d1 | Jan Kiszka | } |
1634 | bb44e0d1 | Jan Kiszka | |
1635 | bb44e0d1 | Jan Kiszka | #define VMX_INVALID_GUEST_STATE 0x80000021 |
1636 | bb44e0d1 | Jan Kiszka | |
1637 | 05330448 | aliguori | int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run) |
1638 | 05330448 | aliguori | { |
1639 | bb44e0d1 | Jan Kiszka | uint64_t code; |
1640 | bb4ea393 | Jan Kiszka | int ret;
|
1641 | 05330448 | aliguori | |
1642 | 05330448 | aliguori | switch (run->exit_reason) {
|
1643 | 05330448 | aliguori | case KVM_EXIT_HLT:
|
1644 | 8c0d577e | Blue Swirl | DPRINTF("handle_hlt\n");
|
1645 | 05330448 | aliguori | ret = kvm_handle_halt(env); |
1646 | 05330448 | aliguori | break;
|
1647 | 646042e1 | Jan Kiszka | case KVM_EXIT_SET_TPR:
|
1648 | bb4ea393 | Jan Kiszka | ret = 0;
|
1649 | 646042e1 | Jan Kiszka | break;
|
1650 | bb44e0d1 | Jan Kiszka | case KVM_EXIT_FAIL_ENTRY:
|
1651 | bb44e0d1 | Jan Kiszka | code = run->fail_entry.hardware_entry_failure_reason; |
1652 | bb44e0d1 | Jan Kiszka | fprintf(stderr, "KVM: entry failed, hardware error 0x%" PRIx64 "\n", |
1653 | bb44e0d1 | Jan Kiszka | code); |
1654 | bb44e0d1 | Jan Kiszka | if (host_supports_vmx() && code == VMX_INVALID_GUEST_STATE) {
|
1655 | bb44e0d1 | Jan Kiszka | fprintf(stderr, |
1656 | bb44e0d1 | Jan Kiszka | "\nIf you're runnning a guest on an Intel machine without "
|
1657 | bb44e0d1 | Jan Kiszka | "unrestricted mode\n"
|
1658 | bb44e0d1 | Jan Kiszka | "support, the failure can be most likely due to the guest "
|
1659 | bb44e0d1 | Jan Kiszka | "entering an invalid\n"
|
1660 | bb44e0d1 | Jan Kiszka | "state for Intel VT. For example, the guest maybe running "
|
1661 | bb44e0d1 | Jan Kiszka | "in big real mode\n"
|
1662 | bb44e0d1 | Jan Kiszka | "which is not supported on less recent Intel processors."
|
1663 | bb44e0d1 | Jan Kiszka | "\n\n");
|
1664 | bb44e0d1 | Jan Kiszka | } |
1665 | bb44e0d1 | Jan Kiszka | ret = -1;
|
1666 | bb44e0d1 | Jan Kiszka | break;
|
1667 | bb44e0d1 | Jan Kiszka | case KVM_EXIT_EXCEPTION:
|
1668 | bb44e0d1 | Jan Kiszka | fprintf(stderr, "KVM: exception %d exit (error code 0x%x)\n",
|
1669 | bb44e0d1 | Jan Kiszka | run->ex.exception, run->ex.error_code); |
1670 | bb44e0d1 | Jan Kiszka | ret = -1;
|
1671 | bb44e0d1 | Jan Kiszka | break;
|
1672 | 73aaec4a | Jan Kiszka | default:
|
1673 | 73aaec4a | Jan Kiszka | fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason);
|
1674 | 73aaec4a | Jan Kiszka | ret = -1;
|
1675 | 73aaec4a | Jan Kiszka | break;
|
1676 | 05330448 | aliguori | } |
1677 | 05330448 | aliguori | |
1678 | 05330448 | aliguori | return ret;
|
1679 | 05330448 | aliguori | } |
1680 | e22a25c9 | aliguori | |
1681 | e22a25c9 | aliguori | #ifdef KVM_CAP_SET_GUEST_DEBUG
|
1682 | e22a25c9 | aliguori | int kvm_arch_insert_sw_breakpoint(CPUState *env, struct kvm_sw_breakpoint *bp) |
1683 | e22a25c9 | aliguori | { |
1684 | 38972938 | Juan Quintela | static const uint8_t int3 = 0xcc; |
1685 | 64bf3f4e | aliguori | |
1686 | e22a25c9 | aliguori | if (cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&bp->saved_insn, 1, 0) || |
1687 | b9bec74b | Jan Kiszka | cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&int3, 1, 1)) { |
1688 | e22a25c9 | aliguori | return -EINVAL;
|
1689 | b9bec74b | Jan Kiszka | } |
1690 | e22a25c9 | aliguori | return 0; |
1691 | e22a25c9 | aliguori | } |
1692 | e22a25c9 | aliguori | |
1693 | e22a25c9 | aliguori | int kvm_arch_remove_sw_breakpoint(CPUState *env, struct kvm_sw_breakpoint *bp) |
1694 | e22a25c9 | aliguori | { |
1695 | e22a25c9 | aliguori | uint8_t int3; |
1696 | e22a25c9 | aliguori | |
1697 | e22a25c9 | aliguori | if (cpu_memory_rw_debug(env, bp->pc, &int3, 1, 0) || int3 != 0xcc || |
1698 | b9bec74b | Jan Kiszka | cpu_memory_rw_debug(env, bp->pc, (uint8_t *)&bp->saved_insn, 1, 1)) { |
1699 | e22a25c9 | aliguori | return -EINVAL;
|
1700 | b9bec74b | Jan Kiszka | } |
1701 | e22a25c9 | aliguori | return 0; |
1702 | e22a25c9 | aliguori | } |
1703 | e22a25c9 | aliguori | |
1704 | e22a25c9 | aliguori | static struct { |
1705 | e22a25c9 | aliguori | target_ulong addr; |
1706 | e22a25c9 | aliguori | int len;
|
1707 | e22a25c9 | aliguori | int type;
|
1708 | e22a25c9 | aliguori | } hw_breakpoint[4];
|
1709 | e22a25c9 | aliguori | |
1710 | e22a25c9 | aliguori | static int nb_hw_breakpoint; |
1711 | e22a25c9 | aliguori | |
1712 | e22a25c9 | aliguori | static int find_hw_breakpoint(target_ulong addr, int len, int type) |
1713 | e22a25c9 | aliguori | { |
1714 | e22a25c9 | aliguori | int n;
|
1715 | e22a25c9 | aliguori | |
1716 | b9bec74b | Jan Kiszka | for (n = 0; n < nb_hw_breakpoint; n++) { |
1717 | e22a25c9 | aliguori | if (hw_breakpoint[n].addr == addr && hw_breakpoint[n].type == type &&
|
1718 | b9bec74b | Jan Kiszka | (hw_breakpoint[n].len == len || len == -1)) {
|
1719 | e22a25c9 | aliguori | return n;
|
1720 | b9bec74b | Jan Kiszka | } |
1721 | b9bec74b | Jan Kiszka | } |
1722 | e22a25c9 | aliguori | return -1; |
1723 | e22a25c9 | aliguori | } |
1724 | e22a25c9 | aliguori | |
1725 | e22a25c9 | aliguori | int kvm_arch_insert_hw_breakpoint(target_ulong addr,
|
1726 | e22a25c9 | aliguori | target_ulong len, int type)
|
1727 | e22a25c9 | aliguori | { |
1728 | e22a25c9 | aliguori | switch (type) {
|
1729 | e22a25c9 | aliguori | case GDB_BREAKPOINT_HW:
|
1730 | e22a25c9 | aliguori | len = 1;
|
1731 | e22a25c9 | aliguori | break;
|
1732 | e22a25c9 | aliguori | case GDB_WATCHPOINT_WRITE:
|
1733 | e22a25c9 | aliguori | case GDB_WATCHPOINT_ACCESS:
|
1734 | e22a25c9 | aliguori | switch (len) {
|
1735 | e22a25c9 | aliguori | case 1: |
1736 | e22a25c9 | aliguori | break;
|
1737 | e22a25c9 | aliguori | case 2: |
1738 | e22a25c9 | aliguori | case 4: |
1739 | e22a25c9 | aliguori | case 8: |
1740 | b9bec74b | Jan Kiszka | if (addr & (len - 1)) { |
1741 | e22a25c9 | aliguori | return -EINVAL;
|
1742 | b9bec74b | Jan Kiszka | } |
1743 | e22a25c9 | aliguori | break;
|
1744 | e22a25c9 | aliguori | default:
|
1745 | e22a25c9 | aliguori | return -EINVAL;
|
1746 | e22a25c9 | aliguori | } |
1747 | e22a25c9 | aliguori | break;
|
1748 | e22a25c9 | aliguori | default:
|
1749 | e22a25c9 | aliguori | return -ENOSYS;
|
1750 | e22a25c9 | aliguori | } |
1751 | e22a25c9 | aliguori | |
1752 | b9bec74b | Jan Kiszka | if (nb_hw_breakpoint == 4) { |
1753 | e22a25c9 | aliguori | return -ENOBUFS;
|
1754 | b9bec74b | Jan Kiszka | } |
1755 | b9bec74b | Jan Kiszka | if (find_hw_breakpoint(addr, len, type) >= 0) { |
1756 | e22a25c9 | aliguori | return -EEXIST;
|
1757 | b9bec74b | Jan Kiszka | } |
1758 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].addr = addr; |
1759 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].len = len; |
1760 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].type = type; |
1761 | e22a25c9 | aliguori | nb_hw_breakpoint++; |
1762 | e22a25c9 | aliguori | |
1763 | e22a25c9 | aliguori | return 0; |
1764 | e22a25c9 | aliguori | } |
1765 | e22a25c9 | aliguori | |
1766 | e22a25c9 | aliguori | int kvm_arch_remove_hw_breakpoint(target_ulong addr,
|
1767 | e22a25c9 | aliguori | target_ulong len, int type)
|
1768 | e22a25c9 | aliguori | { |
1769 | e22a25c9 | aliguori | int n;
|
1770 | e22a25c9 | aliguori | |
1771 | e22a25c9 | aliguori | n = find_hw_breakpoint(addr, (type == GDB_BREAKPOINT_HW) ? 1 : len, type);
|
1772 | b9bec74b | Jan Kiszka | if (n < 0) { |
1773 | e22a25c9 | aliguori | return -ENOENT;
|
1774 | b9bec74b | Jan Kiszka | } |
1775 | e22a25c9 | aliguori | nb_hw_breakpoint--; |
1776 | e22a25c9 | aliguori | hw_breakpoint[n] = hw_breakpoint[nb_hw_breakpoint]; |
1777 | e22a25c9 | aliguori | |
1778 | e22a25c9 | aliguori | return 0; |
1779 | e22a25c9 | aliguori | } |
1780 | e22a25c9 | aliguori | |
1781 | e22a25c9 | aliguori | void kvm_arch_remove_all_hw_breakpoints(void) |
1782 | e22a25c9 | aliguori | { |
1783 | e22a25c9 | aliguori | nb_hw_breakpoint = 0;
|
1784 | e22a25c9 | aliguori | } |
1785 | e22a25c9 | aliguori | |
1786 | e22a25c9 | aliguori | static CPUWatchpoint hw_watchpoint;
|
1787 | e22a25c9 | aliguori | |
1788 | e22a25c9 | aliguori | int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info) |
1789 | e22a25c9 | aliguori | { |
1790 | e22a25c9 | aliguori | int handle = 0; |
1791 | e22a25c9 | aliguori | int n;
|
1792 | e22a25c9 | aliguori | |
1793 | e22a25c9 | aliguori | if (arch_info->exception == 1) { |
1794 | e22a25c9 | aliguori | if (arch_info->dr6 & (1 << 14)) { |
1795 | b9bec74b | Jan Kiszka | if (cpu_single_env->singlestep_enabled) {
|
1796 | e22a25c9 | aliguori | handle = 1;
|
1797 | b9bec74b | Jan Kiszka | } |
1798 | e22a25c9 | aliguori | } else {
|
1799 | b9bec74b | Jan Kiszka | for (n = 0; n < 4; n++) { |
1800 | b9bec74b | Jan Kiszka | if (arch_info->dr6 & (1 << n)) { |
1801 | e22a25c9 | aliguori | switch ((arch_info->dr7 >> (16 + n*4)) & 0x3) { |
1802 | e22a25c9 | aliguori | case 0x0: |
1803 | e22a25c9 | aliguori | handle = 1;
|
1804 | e22a25c9 | aliguori | break;
|
1805 | e22a25c9 | aliguori | case 0x1: |
1806 | e22a25c9 | aliguori | handle = 1;
|
1807 | e22a25c9 | aliguori | cpu_single_env->watchpoint_hit = &hw_watchpoint; |
1808 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
1809 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_WRITE; |
1810 | e22a25c9 | aliguori | break;
|
1811 | e22a25c9 | aliguori | case 0x3: |
1812 | e22a25c9 | aliguori | handle = 1;
|
1813 | e22a25c9 | aliguori | cpu_single_env->watchpoint_hit = &hw_watchpoint; |
1814 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
1815 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_ACCESS; |
1816 | e22a25c9 | aliguori | break;
|
1817 | e22a25c9 | aliguori | } |
1818 | b9bec74b | Jan Kiszka | } |
1819 | b9bec74b | Jan Kiszka | } |
1820 | e22a25c9 | aliguori | } |
1821 | b9bec74b | Jan Kiszka | } else if (kvm_find_sw_breakpoint(cpu_single_env, arch_info->pc)) { |
1822 | e22a25c9 | aliguori | handle = 1;
|
1823 | b9bec74b | Jan Kiszka | } |
1824 | b0b1d690 | Jan Kiszka | if (!handle) {
|
1825 | b0b1d690 | Jan Kiszka | cpu_synchronize_state(cpu_single_env); |
1826 | b0b1d690 | Jan Kiszka | assert(cpu_single_env->exception_injected == -1);
|
1827 | b0b1d690 | Jan Kiszka | |
1828 | b0b1d690 | Jan Kiszka | cpu_single_env->exception_injected = arch_info->exception; |
1829 | b0b1d690 | Jan Kiszka | cpu_single_env->has_error_code = 0;
|
1830 | b0b1d690 | Jan Kiszka | } |
1831 | e22a25c9 | aliguori | |
1832 | e22a25c9 | aliguori | return handle;
|
1833 | e22a25c9 | aliguori | } |
1834 | e22a25c9 | aliguori | |
1835 | e22a25c9 | aliguori | void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg) |
1836 | e22a25c9 | aliguori | { |
1837 | e22a25c9 | aliguori | const uint8_t type_code[] = {
|
1838 | e22a25c9 | aliguori | [GDB_BREAKPOINT_HW] = 0x0,
|
1839 | e22a25c9 | aliguori | [GDB_WATCHPOINT_WRITE] = 0x1,
|
1840 | e22a25c9 | aliguori | [GDB_WATCHPOINT_ACCESS] = 0x3
|
1841 | e22a25c9 | aliguori | }; |
1842 | e22a25c9 | aliguori | const uint8_t len_code[] = {
|
1843 | e22a25c9 | aliguori | [1] = 0x0, [2] = 0x1, [4] = 0x3, [8] = 0x2 |
1844 | e22a25c9 | aliguori | }; |
1845 | e22a25c9 | aliguori | int n;
|
1846 | e22a25c9 | aliguori | |
1847 | b9bec74b | Jan Kiszka | if (kvm_sw_breakpoints_active(env)) {
|
1848 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP; |
1849 | b9bec74b | Jan Kiszka | } |
1850 | e22a25c9 | aliguori | if (nb_hw_breakpoint > 0) { |
1851 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP; |
1852 | e22a25c9 | aliguori | dbg->arch.debugreg[7] = 0x0600; |
1853 | e22a25c9 | aliguori | for (n = 0; n < nb_hw_breakpoint; n++) { |
1854 | e22a25c9 | aliguori | dbg->arch.debugreg[n] = hw_breakpoint[n].addr; |
1855 | e22a25c9 | aliguori | dbg->arch.debugreg[7] |= (2 << (n * 2)) | |
1856 | e22a25c9 | aliguori | (type_code[hw_breakpoint[n].type] << (16 + n*4)) | |
1857 | 95c077c9 | Jan Kiszka | ((uint32_t)len_code[hw_breakpoint[n].len] << (18 + n*4)); |
1858 | e22a25c9 | aliguori | } |
1859 | e22a25c9 | aliguori | } |
1860 | e22a25c9 | aliguori | } |
1861 | e22a25c9 | aliguori | #endif /* KVM_CAP_SET_GUEST_DEBUG */ |
1862 | 4513d923 | Gleb Natapov | |
1863 | 4513d923 | Gleb Natapov | bool kvm_arch_stop_on_emulation_error(CPUState *env)
|
1864 | 4513d923 | Gleb Natapov | { |
1865 | b9bec74b | Jan Kiszka | return !(env->cr[0] & CR0_PE_MASK) || |
1866 | b9bec74b | Jan Kiszka | ((env->segs[R_CS].selector & 3) != 3); |
1867 | 4513d923 | Gleb Natapov | } |