root / target-i386 / kvm.c @ 0fd53fec
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1 | 05330448 | aliguori | /*
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2 | 05330448 | aliguori | * QEMU KVM support
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3 | 05330448 | aliguori | *
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4 | 05330448 | aliguori | * Copyright (C) 2006-2008 Qumranet Technologies
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5 | 05330448 | aliguori | * Copyright IBM, Corp. 2008
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6 | 05330448 | aliguori | *
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7 | 05330448 | aliguori | * Authors:
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8 | 05330448 | aliguori | * Anthony Liguori <aliguori@us.ibm.com>
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9 | 05330448 | aliguori | *
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10 | 05330448 | aliguori | * This work is licensed under the terms of the GNU GPL, version 2 or later.
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11 | 05330448 | aliguori | * See the COPYING file in the top-level directory.
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12 | 05330448 | aliguori | *
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13 | 05330448 | aliguori | */
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14 | 05330448 | aliguori | |
15 | 05330448 | aliguori | #include <sys/types.h> |
16 | 05330448 | aliguori | #include <sys/ioctl.h> |
17 | 05330448 | aliguori | #include <sys/mman.h> |
18 | 25d2e361 | Marcelo Tosatti | #include <sys/utsname.h> |
19 | 05330448 | aliguori | |
20 | 05330448 | aliguori | #include <linux/kvm.h> |
21 | 5802e066 | Jan Kiszka | #include <linux/kvm_para.h> |
22 | 05330448 | aliguori | |
23 | 05330448 | aliguori | #include "qemu-common.h" |
24 | 9c17d615 | Paolo Bonzini | #include "sysemu/sysemu.h" |
25 | 9c17d615 | Paolo Bonzini | #include "sysemu/kvm.h" |
26 | 1d31f66b | Peter Maydell | #include "kvm_i386.h" |
27 | 05330448 | aliguori | #include "cpu.h" |
28 | 022c62cb | Paolo Bonzini | #include "exec/gdbstub.h" |
29 | 1de7afc9 | Paolo Bonzini | #include "qemu/host-utils.h" |
30 | 1de7afc9 | Paolo Bonzini | #include "qemu/config-file.h" |
31 | 0d09e41a | Paolo Bonzini | #include "hw/i386/pc.h" |
32 | 0d09e41a | Paolo Bonzini | #include "hw/i386/apic.h" |
33 | 022c62cb | Paolo Bonzini | #include "exec/ioport.h" |
34 | 92067bf4 | Igor Mammedov | #include <asm/hyperv.h> |
35 | a2cb15b0 | Michael S. Tsirkin | #include "hw/pci/pci.h" |
36 | 05330448 | aliguori | |
37 | 05330448 | aliguori | //#define DEBUG_KVM
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38 | 05330448 | aliguori | |
39 | 05330448 | aliguori | #ifdef DEBUG_KVM
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40 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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41 | 05330448 | aliguori | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
42 | 05330448 | aliguori | #else
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43 | 8c0d577e | Blue Swirl | #define DPRINTF(fmt, ...) \
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44 | 05330448 | aliguori | do { } while (0) |
45 | 05330448 | aliguori | #endif
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46 | 05330448 | aliguori | |
47 | 1a03675d | Glauber Costa | #define MSR_KVM_WALL_CLOCK 0x11 |
48 | 1a03675d | Glauber Costa | #define MSR_KVM_SYSTEM_TIME 0x12 |
49 | 1a03675d | Glauber Costa | |
50 | c0532a76 | Marcelo Tosatti | #ifndef BUS_MCEERR_AR
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51 | c0532a76 | Marcelo Tosatti | #define BUS_MCEERR_AR 4 |
52 | c0532a76 | Marcelo Tosatti | #endif
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53 | c0532a76 | Marcelo Tosatti | #ifndef BUS_MCEERR_AO
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54 | c0532a76 | Marcelo Tosatti | #define BUS_MCEERR_AO 5 |
55 | c0532a76 | Marcelo Tosatti | #endif
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56 | c0532a76 | Marcelo Tosatti | |
57 | 94a8d39a | Jan Kiszka | const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
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58 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(SET_TSS_ADDR), |
59 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(EXT_CPUID), |
60 | 94a8d39a | Jan Kiszka | KVM_CAP_INFO(MP_STATE), |
61 | 94a8d39a | Jan Kiszka | KVM_CAP_LAST_INFO |
62 | 94a8d39a | Jan Kiszka | }; |
63 | 25d2e361 | Marcelo Tosatti | |
64 | c3a3a7d3 | Jan Kiszka | static bool has_msr_star; |
65 | c3a3a7d3 | Jan Kiszka | static bool has_msr_hsave_pa; |
66 | f28558d3 | Will Auld | static bool has_msr_tsc_adjust; |
67 | aa82ba54 | Liu, Jinsong | static bool has_msr_tsc_deadline; |
68 | df67696e | Liu Jinsong | static bool has_msr_feature_control; |
69 | c5999bfc | Jan Kiszka | static bool has_msr_async_pf_en; |
70 | bc9a839d | Michael S. Tsirkin | static bool has_msr_pv_eoi_en; |
71 | 21e87c46 | Avi Kivity | static bool has_msr_misc_enable; |
72 | 917367aa | Marcelo Tosatti | static bool has_msr_kvm_steal_time; |
73 | 25d2e361 | Marcelo Tosatti | static int lm_capable_kernel; |
74 | b827df58 | Avi Kivity | |
75 | 0d894367 | Paolo Bonzini | static bool has_msr_architectural_pmu; |
76 | 0d894367 | Paolo Bonzini | static uint32_t num_architectural_pmu_counters;
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77 | 0d894367 | Paolo Bonzini | |
78 | 1d31f66b | Peter Maydell | bool kvm_allows_irq0_override(void) |
79 | 1d31f66b | Peter Maydell | { |
80 | 1d31f66b | Peter Maydell | return !kvm_irqchip_in_kernel() || kvm_has_gsi_routing();
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81 | 1d31f66b | Peter Maydell | } |
82 | 1d31f66b | Peter Maydell | |
83 | b827df58 | Avi Kivity | static struct kvm_cpuid2 *try_get_cpuid(KVMState *s, int max) |
84 | b827df58 | Avi Kivity | { |
85 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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86 | b827df58 | Avi Kivity | int r, size;
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87 | b827df58 | Avi Kivity | |
88 | b827df58 | Avi Kivity | size = sizeof(*cpuid) + max * sizeof(*cpuid->entries); |
89 | 7267c094 | Anthony Liguori | cpuid = (struct kvm_cpuid2 *)g_malloc0(size);
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90 | b827df58 | Avi Kivity | cpuid->nent = max; |
91 | b827df58 | Avi Kivity | r = kvm_ioctl(s, KVM_GET_SUPPORTED_CPUID, cpuid); |
92 | 76ae317f | Mark McLoughlin | if (r == 0 && cpuid->nent >= max) { |
93 | 76ae317f | Mark McLoughlin | r = -E2BIG; |
94 | 76ae317f | Mark McLoughlin | } |
95 | b827df58 | Avi Kivity | if (r < 0) { |
96 | b827df58 | Avi Kivity | if (r == -E2BIG) {
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97 | 7267c094 | Anthony Liguori | g_free(cpuid); |
98 | b827df58 | Avi Kivity | return NULL; |
99 | b827df58 | Avi Kivity | } else {
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100 | b827df58 | Avi Kivity | fprintf(stderr, "KVM_GET_SUPPORTED_CPUID failed: %s\n",
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101 | b827df58 | Avi Kivity | strerror(-r)); |
102 | b827df58 | Avi Kivity | exit(1);
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103 | b827df58 | Avi Kivity | } |
104 | b827df58 | Avi Kivity | } |
105 | b827df58 | Avi Kivity | return cpuid;
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106 | b827df58 | Avi Kivity | } |
107 | b827df58 | Avi Kivity | |
108 | dd87f8a6 | Eduardo Habkost | /* Run KVM_GET_SUPPORTED_CPUID ioctl(), allocating a buffer large enough
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109 | dd87f8a6 | Eduardo Habkost | * for all entries.
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110 | dd87f8a6 | Eduardo Habkost | */
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111 | dd87f8a6 | Eduardo Habkost | static struct kvm_cpuid2 *get_supported_cpuid(KVMState *s) |
112 | dd87f8a6 | Eduardo Habkost | { |
113 | dd87f8a6 | Eduardo Habkost | struct kvm_cpuid2 *cpuid;
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114 | dd87f8a6 | Eduardo Habkost | int max = 1; |
115 | dd87f8a6 | Eduardo Habkost | while ((cpuid = try_get_cpuid(s, max)) == NULL) { |
116 | dd87f8a6 | Eduardo Habkost | max *= 2;
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117 | dd87f8a6 | Eduardo Habkost | } |
118 | dd87f8a6 | Eduardo Habkost | return cpuid;
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119 | dd87f8a6 | Eduardo Habkost | } |
120 | dd87f8a6 | Eduardo Habkost | |
121 | 0c31b744 | Glauber Costa | struct kvm_para_features {
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122 | 0c31b744 | Glauber Costa | int cap;
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123 | 0c31b744 | Glauber Costa | int feature;
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124 | 0c31b744 | Glauber Costa | } para_features[] = { |
125 | 0c31b744 | Glauber Costa | { KVM_CAP_CLOCKSOURCE, KVM_FEATURE_CLOCKSOURCE }, |
126 | 0c31b744 | Glauber Costa | { KVM_CAP_NOP_IO_DELAY, KVM_FEATURE_NOP_IO_DELAY }, |
127 | 0c31b744 | Glauber Costa | { KVM_CAP_PV_MMU, KVM_FEATURE_MMU_OP }, |
128 | 0c31b744 | Glauber Costa | { KVM_CAP_ASYNC_PF, KVM_FEATURE_ASYNC_PF }, |
129 | 0c31b744 | Glauber Costa | { -1, -1 } |
130 | 0c31b744 | Glauber Costa | }; |
131 | 0c31b744 | Glauber Costa | |
132 | ba9bc59e | Jan Kiszka | static int get_para_features(KVMState *s) |
133 | 0c31b744 | Glauber Costa | { |
134 | 0c31b744 | Glauber Costa | int i, features = 0; |
135 | 0c31b744 | Glauber Costa | |
136 | 0c31b744 | Glauber Costa | for (i = 0; i < ARRAY_SIZE(para_features) - 1; i++) { |
137 | ba9bc59e | Jan Kiszka | if (kvm_check_extension(s, para_features[i].cap)) {
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138 | 0c31b744 | Glauber Costa | features |= (1 << para_features[i].feature);
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139 | 0c31b744 | Glauber Costa | } |
140 | 0c31b744 | Glauber Costa | } |
141 | 0c31b744 | Glauber Costa | |
142 | 0c31b744 | Glauber Costa | return features;
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143 | 0c31b744 | Glauber Costa | } |
144 | 0c31b744 | Glauber Costa | |
145 | 0c31b744 | Glauber Costa | |
146 | 829ae2f9 | Eduardo Habkost | /* Returns the value for a specific register on the cpuid entry
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147 | 829ae2f9 | Eduardo Habkost | */
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148 | 829ae2f9 | Eduardo Habkost | static uint32_t cpuid_entry_get_reg(struct kvm_cpuid_entry2 *entry, int reg) |
149 | 829ae2f9 | Eduardo Habkost | { |
150 | 829ae2f9 | Eduardo Habkost | uint32_t ret = 0;
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151 | 829ae2f9 | Eduardo Habkost | switch (reg) {
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152 | 829ae2f9 | Eduardo Habkost | case R_EAX:
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153 | 829ae2f9 | Eduardo Habkost | ret = entry->eax; |
154 | 829ae2f9 | Eduardo Habkost | break;
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155 | 829ae2f9 | Eduardo Habkost | case R_EBX:
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156 | 829ae2f9 | Eduardo Habkost | ret = entry->ebx; |
157 | 829ae2f9 | Eduardo Habkost | break;
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158 | 829ae2f9 | Eduardo Habkost | case R_ECX:
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159 | 829ae2f9 | Eduardo Habkost | ret = entry->ecx; |
160 | 829ae2f9 | Eduardo Habkost | break;
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161 | 829ae2f9 | Eduardo Habkost | case R_EDX:
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162 | 829ae2f9 | Eduardo Habkost | ret = entry->edx; |
163 | 829ae2f9 | Eduardo Habkost | break;
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164 | 829ae2f9 | Eduardo Habkost | } |
165 | 829ae2f9 | Eduardo Habkost | return ret;
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166 | 829ae2f9 | Eduardo Habkost | } |
167 | 829ae2f9 | Eduardo Habkost | |
168 | 4fb73f1d | Eduardo Habkost | /* Find matching entry for function/index on kvm_cpuid2 struct
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169 | 4fb73f1d | Eduardo Habkost | */
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170 | 4fb73f1d | Eduardo Habkost | static struct kvm_cpuid_entry2 *cpuid_find_entry(struct kvm_cpuid2 *cpuid, |
171 | 4fb73f1d | Eduardo Habkost | uint32_t function, |
172 | 4fb73f1d | Eduardo Habkost | uint32_t index) |
173 | 4fb73f1d | Eduardo Habkost | { |
174 | 4fb73f1d | Eduardo Habkost | int i;
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175 | 4fb73f1d | Eduardo Habkost | for (i = 0; i < cpuid->nent; ++i) { |
176 | 4fb73f1d | Eduardo Habkost | if (cpuid->entries[i].function == function &&
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177 | 4fb73f1d | Eduardo Habkost | cpuid->entries[i].index == index) { |
178 | 4fb73f1d | Eduardo Habkost | return &cpuid->entries[i];
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179 | 4fb73f1d | Eduardo Habkost | } |
180 | 4fb73f1d | Eduardo Habkost | } |
181 | 4fb73f1d | Eduardo Habkost | /* not found: */
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182 | 4fb73f1d | Eduardo Habkost | return NULL; |
183 | 4fb73f1d | Eduardo Habkost | } |
184 | 4fb73f1d | Eduardo Habkost | |
185 | ba9bc59e | Jan Kiszka | uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function, |
186 | c958a8bd | Sheng Yang | uint32_t index, int reg)
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187 | b827df58 | Avi Kivity | { |
188 | b827df58 | Avi Kivity | struct kvm_cpuid2 *cpuid;
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189 | b827df58 | Avi Kivity | uint32_t ret = 0;
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190 | b827df58 | Avi Kivity | uint32_t cpuid_1_edx; |
191 | 8c723b79 | Eduardo Habkost | bool found = false; |
192 | b827df58 | Avi Kivity | |
193 | dd87f8a6 | Eduardo Habkost | cpuid = get_supported_cpuid(s); |
194 | b827df58 | Avi Kivity | |
195 | 4fb73f1d | Eduardo Habkost | struct kvm_cpuid_entry2 *entry = cpuid_find_entry(cpuid, function, index);
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196 | 4fb73f1d | Eduardo Habkost | if (entry) {
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197 | 4fb73f1d | Eduardo Habkost | found = true;
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198 | 4fb73f1d | Eduardo Habkost | ret = cpuid_entry_get_reg(entry, reg); |
199 | b827df58 | Avi Kivity | } |
200 | b827df58 | Avi Kivity | |
201 | 7b46e5ce | Eduardo Habkost | /* Fixups for the data returned by KVM, below */
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202 | 7b46e5ce | Eduardo Habkost | |
203 | c2acb022 | Eduardo Habkost | if (function == 1 && reg == R_EDX) { |
204 | c2acb022 | Eduardo Habkost | /* KVM before 2.6.30 misreports the following features */
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205 | c2acb022 | Eduardo Habkost | ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA; |
206 | 84bd945c | Eduardo Habkost | } else if (function == 1 && reg == R_ECX) { |
207 | 84bd945c | Eduardo Habkost | /* We can set the hypervisor flag, even if KVM does not return it on
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208 | 84bd945c | Eduardo Habkost | * GET_SUPPORTED_CPUID
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209 | 84bd945c | Eduardo Habkost | */
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210 | 84bd945c | Eduardo Habkost | ret |= CPUID_EXT_HYPERVISOR; |
211 | ac67ee26 | Eduardo Habkost | /* tsc-deadline flag is not returned by GET_SUPPORTED_CPUID, but it
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212 | ac67ee26 | Eduardo Habkost | * can be enabled if the kernel has KVM_CAP_TSC_DEADLINE_TIMER,
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213 | ac67ee26 | Eduardo Habkost | * and the irqchip is in the kernel.
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214 | ac67ee26 | Eduardo Habkost | */
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215 | ac67ee26 | Eduardo Habkost | if (kvm_irqchip_in_kernel() &&
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216 | ac67ee26 | Eduardo Habkost | kvm_check_extension(s, KVM_CAP_TSC_DEADLINE_TIMER)) { |
217 | ac67ee26 | Eduardo Habkost | ret |= CPUID_EXT_TSC_DEADLINE_TIMER; |
218 | ac67ee26 | Eduardo Habkost | } |
219 | 41e5e76d | Eduardo Habkost | |
220 | 41e5e76d | Eduardo Habkost | /* x2apic is reported by GET_SUPPORTED_CPUID, but it can't be enabled
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221 | 41e5e76d | Eduardo Habkost | * without the in-kernel irqchip
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222 | 41e5e76d | Eduardo Habkost | */
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223 | 41e5e76d | Eduardo Habkost | if (!kvm_irqchip_in_kernel()) {
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224 | 41e5e76d | Eduardo Habkost | ret &= ~CPUID_EXT_X2APIC; |
225 | b827df58 | Avi Kivity | } |
226 | c2acb022 | Eduardo Habkost | } else if (function == 0x80000001 && reg == R_EDX) { |
227 | c2acb022 | Eduardo Habkost | /* On Intel, kvm returns cpuid according to the Intel spec,
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228 | c2acb022 | Eduardo Habkost | * so add missing bits according to the AMD spec:
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229 | c2acb022 | Eduardo Habkost | */
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230 | c2acb022 | Eduardo Habkost | cpuid_1_edx = kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); |
231 | c2acb022 | Eduardo Habkost | ret |= cpuid_1_edx & CPUID_EXT2_AMD_ALIASES; |
232 | b827df58 | Avi Kivity | } |
233 | b827df58 | Avi Kivity | |
234 | 7267c094 | Anthony Liguori | g_free(cpuid); |
235 | b827df58 | Avi Kivity | |
236 | 0c31b744 | Glauber Costa | /* fallback for older kernels */
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237 | 8c723b79 | Eduardo Habkost | if ((function == KVM_CPUID_FEATURES) && !found) {
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238 | ba9bc59e | Jan Kiszka | ret = get_para_features(s); |
239 | b9bec74b | Jan Kiszka | } |
240 | 0c31b744 | Glauber Costa | |
241 | 0c31b744 | Glauber Costa | return ret;
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242 | bb0300dc | Gleb Natapov | } |
243 | bb0300dc | Gleb Natapov | |
244 | 3c85e74f | Huang Ying | typedef struct HWPoisonPage { |
245 | 3c85e74f | Huang Ying | ram_addr_t ram_addr; |
246 | 3c85e74f | Huang Ying | QLIST_ENTRY(HWPoisonPage) list; |
247 | 3c85e74f | Huang Ying | } HWPoisonPage; |
248 | 3c85e74f | Huang Ying | |
249 | 3c85e74f | Huang Ying | static QLIST_HEAD(, HWPoisonPage) hwpoison_page_list =
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250 | 3c85e74f | Huang Ying | QLIST_HEAD_INITIALIZER(hwpoison_page_list); |
251 | 3c85e74f | Huang Ying | |
252 | 3c85e74f | Huang Ying | static void kvm_unpoison_all(void *param) |
253 | 3c85e74f | Huang Ying | { |
254 | 3c85e74f | Huang Ying | HWPoisonPage *page, *next_page; |
255 | 3c85e74f | Huang Ying | |
256 | 3c85e74f | Huang Ying | QLIST_FOREACH_SAFE(page, &hwpoison_page_list, list, next_page) { |
257 | 3c85e74f | Huang Ying | QLIST_REMOVE(page, list); |
258 | 3c85e74f | Huang Ying | qemu_ram_remap(page->ram_addr, TARGET_PAGE_SIZE); |
259 | 7267c094 | Anthony Liguori | g_free(page); |
260 | 3c85e74f | Huang Ying | } |
261 | 3c85e74f | Huang Ying | } |
262 | 3c85e74f | Huang Ying | |
263 | 3c85e74f | Huang Ying | static void kvm_hwpoison_page_add(ram_addr_t ram_addr) |
264 | 3c85e74f | Huang Ying | { |
265 | 3c85e74f | Huang Ying | HWPoisonPage *page; |
266 | 3c85e74f | Huang Ying | |
267 | 3c85e74f | Huang Ying | QLIST_FOREACH(page, &hwpoison_page_list, list) { |
268 | 3c85e74f | Huang Ying | if (page->ram_addr == ram_addr) {
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269 | 3c85e74f | Huang Ying | return;
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270 | 3c85e74f | Huang Ying | } |
271 | 3c85e74f | Huang Ying | } |
272 | 7267c094 | Anthony Liguori | page = g_malloc(sizeof(HWPoisonPage));
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273 | 3c85e74f | Huang Ying | page->ram_addr = ram_addr; |
274 | 3c85e74f | Huang Ying | QLIST_INSERT_HEAD(&hwpoison_page_list, page, list); |
275 | 3c85e74f | Huang Ying | } |
276 | 3c85e74f | Huang Ying | |
277 | e7701825 | Marcelo Tosatti | static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap, |
278 | e7701825 | Marcelo Tosatti | int *max_banks)
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279 | e7701825 | Marcelo Tosatti | { |
280 | e7701825 | Marcelo Tosatti | int r;
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281 | e7701825 | Marcelo Tosatti | |
282 | 14a09518 | Lai Jiangshan | r = kvm_check_extension(s, KVM_CAP_MCE); |
283 | e7701825 | Marcelo Tosatti | if (r > 0) { |
284 | e7701825 | Marcelo Tosatti | *max_banks = r; |
285 | e7701825 | Marcelo Tosatti | return kvm_ioctl(s, KVM_X86_GET_MCE_CAP_SUPPORTED, mce_cap);
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286 | e7701825 | Marcelo Tosatti | } |
287 | e7701825 | Marcelo Tosatti | return -ENOSYS;
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288 | e7701825 | Marcelo Tosatti | } |
289 | e7701825 | Marcelo Tosatti | |
290 | bee615d4 | Andreas Fรคrber | static void kvm_mce_inject(X86CPU *cpu, hwaddr paddr, int code) |
291 | e7701825 | Marcelo Tosatti | { |
292 | bee615d4 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
293 | c34d440a | Jan Kiszka | uint64_t status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | |
294 | c34d440a | Jan Kiszka | MCI_STATUS_MISCV | MCI_STATUS_ADDRV | MCI_STATUS_S; |
295 | c34d440a | Jan Kiszka | uint64_t mcg_status = MCG_STATUS_MCIP; |
296 | e7701825 | Marcelo Tosatti | |
297 | c34d440a | Jan Kiszka | if (code == BUS_MCEERR_AR) {
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298 | c34d440a | Jan Kiszka | status |= MCI_STATUS_AR | 0x134;
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299 | c34d440a | Jan Kiszka | mcg_status |= MCG_STATUS_EIPV; |
300 | c34d440a | Jan Kiszka | } else {
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301 | c34d440a | Jan Kiszka | status |= 0xc0;
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302 | c34d440a | Jan Kiszka | mcg_status |= MCG_STATUS_RIPV; |
303 | 419fb20a | Jan Kiszka | } |
304 | 8c5cf3b6 | Andreas Fรคrber | cpu_x86_inject_mce(NULL, cpu, 9, status, mcg_status, paddr, |
305 | c34d440a | Jan Kiszka | (MCM_ADDR_PHYS << 6) | 0xc, |
306 | c34d440a | Jan Kiszka | cpu_x86_support_mca_broadcast(env) ? |
307 | c34d440a | Jan Kiszka | MCE_INJECT_BROADCAST : 0);
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308 | 419fb20a | Jan Kiszka | } |
309 | 419fb20a | Jan Kiszka | |
310 | 419fb20a | Jan Kiszka | static void hardware_memory_error(void) |
311 | 419fb20a | Jan Kiszka | { |
312 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error!\n");
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313 | 419fb20a | Jan Kiszka | exit(1);
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314 | 419fb20a | Jan Kiszka | } |
315 | 419fb20a | Jan Kiszka | |
316 | 20d695a9 | Andreas Fรคrber | int kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr) |
317 | 419fb20a | Jan Kiszka | { |
318 | 20d695a9 | Andreas Fรคrber | X86CPU *cpu = X86_CPU(c); |
319 | 20d695a9 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
320 | 419fb20a | Jan Kiszka | ram_addr_t ram_addr; |
321 | a8170e5e | Avi Kivity | hwaddr paddr; |
322 | 419fb20a | Jan Kiszka | |
323 | 419fb20a | Jan Kiszka | if ((env->mcg_cap & MCG_SER_P) && addr
|
324 | c34d440a | Jan Kiszka | && (code == BUS_MCEERR_AR || code == BUS_MCEERR_AO)) { |
325 | 1b5ec234 | Paolo Bonzini | if (qemu_ram_addr_from_host(addr, &ram_addr) == NULL || |
326 | a60f24b5 | Andreas Fรคrber | !kvm_physical_memory_addr_from_host(c->kvm_state, addr, &paddr)) { |
327 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error for memory used by "
|
328 | 419fb20a | Jan Kiszka | "QEMU itself instead of guest system!\n");
|
329 | 419fb20a | Jan Kiszka | /* Hope we are lucky for AO MCE */
|
330 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
|
331 | 419fb20a | Jan Kiszka | return 0; |
332 | 419fb20a | Jan Kiszka | } else {
|
333 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
334 | 419fb20a | Jan Kiszka | } |
335 | 419fb20a | Jan Kiszka | } |
336 | 3c85e74f | Huang Ying | kvm_hwpoison_page_add(ram_addr); |
337 | bee615d4 | Andreas Fรคrber | kvm_mce_inject(cpu, paddr, code); |
338 | e56ff191 | Jan Kiszka | } else {
|
339 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
|
340 | 419fb20a | Jan Kiszka | return 0; |
341 | 419fb20a | Jan Kiszka | } else if (code == BUS_MCEERR_AR) { |
342 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
343 | 419fb20a | Jan Kiszka | } else {
|
344 | 419fb20a | Jan Kiszka | return 1; |
345 | 419fb20a | Jan Kiszka | } |
346 | 419fb20a | Jan Kiszka | } |
347 | 419fb20a | Jan Kiszka | return 0; |
348 | 419fb20a | Jan Kiszka | } |
349 | 419fb20a | Jan Kiszka | |
350 | 419fb20a | Jan Kiszka | int kvm_arch_on_sigbus(int code, void *addr) |
351 | 419fb20a | Jan Kiszka | { |
352 | 182735ef | Andreas Fรคrber | X86CPU *cpu = X86_CPU(first_cpu); |
353 | 182735ef | Andreas Fรคrber | |
354 | 182735ef | Andreas Fรคrber | if ((cpu->env.mcg_cap & MCG_SER_P) && addr && code == BUS_MCEERR_AO) {
|
355 | 419fb20a | Jan Kiszka | ram_addr_t ram_addr; |
356 | a8170e5e | Avi Kivity | hwaddr paddr; |
357 | 419fb20a | Jan Kiszka | |
358 | 419fb20a | Jan Kiszka | /* Hope we are lucky for AO MCE */
|
359 | 1b5ec234 | Paolo Bonzini | if (qemu_ram_addr_from_host(addr, &ram_addr) == NULL || |
360 | 182735ef | Andreas Fรคrber | !kvm_physical_memory_addr_from_host(first_cpu->kvm_state, |
361 | a60f24b5 | Andreas Fรคrber | addr, &paddr)) { |
362 | 419fb20a | Jan Kiszka | fprintf(stderr, "Hardware memory error for memory used by "
|
363 | 419fb20a | Jan Kiszka | "QEMU itself instead of guest system!: %p\n", addr);
|
364 | 419fb20a | Jan Kiszka | return 0; |
365 | 419fb20a | Jan Kiszka | } |
366 | 3c85e74f | Huang Ying | kvm_hwpoison_page_add(ram_addr); |
367 | 182735ef | Andreas Fรคrber | kvm_mce_inject(X86_CPU(first_cpu), paddr, code); |
368 | e56ff191 | Jan Kiszka | } else {
|
369 | 419fb20a | Jan Kiszka | if (code == BUS_MCEERR_AO) {
|
370 | 419fb20a | Jan Kiszka | return 0; |
371 | 419fb20a | Jan Kiszka | } else if (code == BUS_MCEERR_AR) { |
372 | 419fb20a | Jan Kiszka | hardware_memory_error(); |
373 | 419fb20a | Jan Kiszka | } else {
|
374 | 419fb20a | Jan Kiszka | return 1; |
375 | 419fb20a | Jan Kiszka | } |
376 | 419fb20a | Jan Kiszka | } |
377 | 419fb20a | Jan Kiszka | return 0; |
378 | 419fb20a | Jan Kiszka | } |
379 | e7701825 | Marcelo Tosatti | |
380 | 1bc22652 | Andreas Fรคrber | static int kvm_inject_mce_oldstyle(X86CPU *cpu) |
381 | ab443475 | Jan Kiszka | { |
382 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
383 | 1bc22652 | Andreas Fรคrber | |
384 | ab443475 | Jan Kiszka | if (!kvm_has_vcpu_events() && env->exception_injected == EXCP12_MCHK) {
|
385 | ab443475 | Jan Kiszka | unsigned int bank, bank_num = env->mcg_cap & 0xff; |
386 | ab443475 | Jan Kiszka | struct kvm_x86_mce mce;
|
387 | ab443475 | Jan Kiszka | |
388 | ab443475 | Jan Kiszka | env->exception_injected = -1;
|
389 | ab443475 | Jan Kiszka | |
390 | ab443475 | Jan Kiszka | /*
|
391 | ab443475 | Jan Kiszka | * There must be at least one bank in use if an MCE is pending.
|
392 | ab443475 | Jan Kiszka | * Find it and use its values for the event injection.
|
393 | ab443475 | Jan Kiszka | */
|
394 | ab443475 | Jan Kiszka | for (bank = 0; bank < bank_num; bank++) { |
395 | ab443475 | Jan Kiszka | if (env->mce_banks[bank * 4 + 1] & MCI_STATUS_VAL) { |
396 | ab443475 | Jan Kiszka | break;
|
397 | ab443475 | Jan Kiszka | } |
398 | ab443475 | Jan Kiszka | } |
399 | ab443475 | Jan Kiszka | assert(bank < bank_num); |
400 | ab443475 | Jan Kiszka | |
401 | ab443475 | Jan Kiszka | mce.bank = bank; |
402 | ab443475 | Jan Kiszka | mce.status = env->mce_banks[bank * 4 + 1]; |
403 | ab443475 | Jan Kiszka | mce.mcg_status = env->mcg_status; |
404 | ab443475 | Jan Kiszka | mce.addr = env->mce_banks[bank * 4 + 2]; |
405 | ab443475 | Jan Kiszka | mce.misc = env->mce_banks[bank * 4 + 3]; |
406 | ab443475 | Jan Kiszka | |
407 | 1bc22652 | Andreas Fรคrber | return kvm_vcpu_ioctl(CPU(cpu), KVM_X86_SET_MCE, &mce);
|
408 | ab443475 | Jan Kiszka | } |
409 | ab443475 | Jan Kiszka | return 0; |
410 | ab443475 | Jan Kiszka | } |
411 | ab443475 | Jan Kiszka | |
412 | 1dfb4dd9 | Luiz Capitulino | static void cpu_update_state(void *opaque, int running, RunState state) |
413 | b8cc45d6 | Glauber Costa | { |
414 | 317ac620 | Andreas Fรคrber | CPUX86State *env = opaque; |
415 | b8cc45d6 | Glauber Costa | |
416 | b8cc45d6 | Glauber Costa | if (running) {
|
417 | b8cc45d6 | Glauber Costa | env->tsc_valid = false;
|
418 | b8cc45d6 | Glauber Costa | } |
419 | b8cc45d6 | Glauber Costa | } |
420 | b8cc45d6 | Glauber Costa | |
421 | 83b17af5 | Eduardo Habkost | unsigned long kvm_arch_vcpu_id(CPUState *cs) |
422 | b164e48e | Eduardo Habkost | { |
423 | 83b17af5 | Eduardo Habkost | X86CPU *cpu = X86_CPU(cs); |
424 | 83b17af5 | Eduardo Habkost | return cpu->env.cpuid_apic_id;
|
425 | b164e48e | Eduardo Habkost | } |
426 | b164e48e | Eduardo Habkost | |
427 | 92067bf4 | Igor Mammedov | #ifndef KVM_CPUID_SIGNATURE_NEXT
|
428 | 92067bf4 | Igor Mammedov | #define KVM_CPUID_SIGNATURE_NEXT 0x40000100 |
429 | 92067bf4 | Igor Mammedov | #endif
|
430 | 92067bf4 | Igor Mammedov | |
431 | 92067bf4 | Igor Mammedov | static bool hyperv_hypercall_available(X86CPU *cpu) |
432 | 92067bf4 | Igor Mammedov | { |
433 | 92067bf4 | Igor Mammedov | return cpu->hyperv_vapic ||
|
434 | 92067bf4 | Igor Mammedov | (cpu->hyperv_spinlock_attempts != HYPERV_SPINLOCK_NEVER_RETRY); |
435 | 92067bf4 | Igor Mammedov | } |
436 | 92067bf4 | Igor Mammedov | |
437 | 92067bf4 | Igor Mammedov | static bool hyperv_enabled(X86CPU *cpu) |
438 | 92067bf4 | Igor Mammedov | { |
439 | 92067bf4 | Igor Mammedov | return hyperv_hypercall_available(cpu) ||
|
440 | 92067bf4 | Igor Mammedov | cpu->hyperv_relaxed_timing; |
441 | 92067bf4 | Igor Mammedov | } |
442 | 92067bf4 | Igor Mammedov | |
443 | f8bb0565 | Igor Mammedov | #define KVM_MAX_CPUID_ENTRIES 100 |
444 | 0893d460 | Anthony Liguori | |
445 | 20d695a9 | Andreas Fรคrber | int kvm_arch_init_vcpu(CPUState *cs)
|
446 | 05330448 | aliguori | { |
447 | 05330448 | aliguori | struct {
|
448 | 486bd5a2 | aliguori | struct kvm_cpuid2 cpuid;
|
449 | f8bb0565 | Igor Mammedov | struct kvm_cpuid_entry2 entries[KVM_MAX_CPUID_ENTRIES];
|
450 | 541dc0d4 | Stefan Weil | } QEMU_PACKED cpuid_data; |
451 | 20d695a9 | Andreas Fรคrber | X86CPU *cpu = X86_CPU(cs); |
452 | 20d695a9 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
453 | 486bd5a2 | aliguori | uint32_t limit, i, j, cpuid_i; |
454 | a33609ca | aliguori | uint32_t unused; |
455 | bb0300dc | Gleb Natapov | struct kvm_cpuid_entry2 *c;
|
456 | bb0300dc | Gleb Natapov | uint32_t signature[3];
|
457 | e7429073 | Joerg Roedel | int r;
|
458 | 05330448 | aliguori | |
459 | 05330448 | aliguori | cpuid_i = 0;
|
460 | 05330448 | aliguori | |
461 | bb0300dc | Gleb Natapov | /* Paravirtualization CPUIDs */
|
462 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
463 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
464 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_SIGNATURE; |
465 | 92067bf4 | Igor Mammedov | if (!hyperv_enabled(cpu)) {
|
466 | eab70139 | Vadim Rozenfeld | memcpy(signature, "KVMKVMKVM\0\0\0", 12); |
467 | eab70139 | Vadim Rozenfeld | c->eax = 0;
|
468 | eab70139 | Vadim Rozenfeld | } else {
|
469 | eab70139 | Vadim Rozenfeld | memcpy(signature, "Microsoft Hv", 12); |
470 | eab70139 | Vadim Rozenfeld | c->eax = HYPERV_CPUID_MIN; |
471 | eab70139 | Vadim Rozenfeld | } |
472 | bb0300dc | Gleb Natapov | c->ebx = signature[0];
|
473 | bb0300dc | Gleb Natapov | c->ecx = signature[1];
|
474 | bb0300dc | Gleb Natapov | c->edx = signature[2];
|
475 | bb0300dc | Gleb Natapov | |
476 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
477 | bb0300dc | Gleb Natapov | memset(c, 0, sizeof(*c)); |
478 | bb0300dc | Gleb Natapov | c->function = KVM_CPUID_FEATURES; |
479 | 0514ef2f | Eduardo Habkost | c->eax = env->features[FEAT_KVM]; |
480 | 0c31b744 | Glauber Costa | |
481 | 92067bf4 | Igor Mammedov | if (hyperv_enabled(cpu)) {
|
482 | eab70139 | Vadim Rozenfeld | memcpy(signature, "Hv#1\0\0\0\0\0\0\0\0", 12); |
483 | eab70139 | Vadim Rozenfeld | c->eax = signature[0];
|
484 | eab70139 | Vadim Rozenfeld | |
485 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
486 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
487 | eab70139 | Vadim Rozenfeld | c->function = HYPERV_CPUID_VERSION; |
488 | eab70139 | Vadim Rozenfeld | c->eax = 0x00001bbc;
|
489 | eab70139 | Vadim Rozenfeld | c->ebx = 0x00060001;
|
490 | eab70139 | Vadim Rozenfeld | |
491 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
492 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
493 | eab70139 | Vadim Rozenfeld | c->function = HYPERV_CPUID_FEATURES; |
494 | 92067bf4 | Igor Mammedov | if (cpu->hyperv_relaxed_timing) {
|
495 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE; |
496 | eab70139 | Vadim Rozenfeld | } |
497 | 92067bf4 | Igor Mammedov | if (cpu->hyperv_vapic) {
|
498 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_MSR_HYPERCALL_AVAILABLE; |
499 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_MSR_APIC_ACCESS_AVAILABLE; |
500 | eab70139 | Vadim Rozenfeld | } |
501 | eab70139 | Vadim Rozenfeld | |
502 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
503 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
504 | eab70139 | Vadim Rozenfeld | c->function = HYPERV_CPUID_ENLIGHTMENT_INFO; |
505 | 92067bf4 | Igor Mammedov | if (cpu->hyperv_relaxed_timing) {
|
506 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_RELAXED_TIMING_RECOMMENDED; |
507 | eab70139 | Vadim Rozenfeld | } |
508 | 92067bf4 | Igor Mammedov | if (cpu->hyperv_vapic) {
|
509 | eab70139 | Vadim Rozenfeld | c->eax |= HV_X64_APIC_ACCESS_RECOMMENDED; |
510 | eab70139 | Vadim Rozenfeld | } |
511 | 92067bf4 | Igor Mammedov | c->ebx = cpu->hyperv_spinlock_attempts; |
512 | eab70139 | Vadim Rozenfeld | |
513 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
514 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
515 | eab70139 | Vadim Rozenfeld | c->function = HYPERV_CPUID_IMPLEMENT_LIMITS; |
516 | eab70139 | Vadim Rozenfeld | c->eax = 0x40;
|
517 | eab70139 | Vadim Rozenfeld | c->ebx = 0x40;
|
518 | eab70139 | Vadim Rozenfeld | |
519 | eab70139 | Vadim Rozenfeld | c = &cpuid_data.entries[cpuid_i++]; |
520 | eab70139 | Vadim Rozenfeld | memset(c, 0, sizeof(*c)); |
521 | eab70139 | Vadim Rozenfeld | c->function = KVM_CPUID_SIGNATURE_NEXT; |
522 | eab70139 | Vadim Rozenfeld | memcpy(signature, "KVMKVMKVM\0\0\0", 12); |
523 | eab70139 | Vadim Rozenfeld | c->eax = 0;
|
524 | eab70139 | Vadim Rozenfeld | c->ebx = signature[0];
|
525 | eab70139 | Vadim Rozenfeld | c->ecx = signature[1];
|
526 | eab70139 | Vadim Rozenfeld | c->edx = signature[2];
|
527 | eab70139 | Vadim Rozenfeld | } |
528 | eab70139 | Vadim Rozenfeld | |
529 | 0c31b744 | Glauber Costa | has_msr_async_pf_en = c->eax & (1 << KVM_FEATURE_ASYNC_PF);
|
530 | 0c31b744 | Glauber Costa | |
531 | bc9a839d | Michael S. Tsirkin | has_msr_pv_eoi_en = c->eax & (1 << KVM_FEATURE_PV_EOI);
|
532 | bc9a839d | Michael S. Tsirkin | |
533 | 917367aa | Marcelo Tosatti | has_msr_kvm_steal_time = c->eax & (1 << KVM_FEATURE_STEAL_TIME);
|
534 | 917367aa | Marcelo Tosatti | |
535 | a33609ca | aliguori | cpu_x86_cpuid(env, 0, 0, &limit, &unused, &unused, &unused); |
536 | 05330448 | aliguori | |
537 | 05330448 | aliguori | for (i = 0; i <= limit; i++) { |
538 | f8bb0565 | Igor Mammedov | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) {
|
539 | f8bb0565 | Igor Mammedov | fprintf(stderr, "unsupported level value: 0x%x\n", limit);
|
540 | f8bb0565 | Igor Mammedov | abort(); |
541 | f8bb0565 | Igor Mammedov | } |
542 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
543 | 486bd5a2 | aliguori | |
544 | 486bd5a2 | aliguori | switch (i) {
|
545 | a36b1029 | aliguori | case 2: { |
546 | a36b1029 | aliguori | /* Keep reading function 2 till all the input is received */
|
547 | a36b1029 | aliguori | int times;
|
548 | a36b1029 | aliguori | |
549 | a36b1029 | aliguori | c->function = i; |
550 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC | |
551 | a33609ca | aliguori | KVM_CPUID_FLAG_STATE_READ_NEXT; |
552 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
553 | a33609ca | aliguori | times = c->eax & 0xff;
|
554 | a36b1029 | aliguori | |
555 | a36b1029 | aliguori | for (j = 1; j < times; ++j) { |
556 | f8bb0565 | Igor Mammedov | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) {
|
557 | f8bb0565 | Igor Mammedov | fprintf(stderr, "cpuid_data is full, no space for "
|
558 | f8bb0565 | Igor Mammedov | "cpuid(eax:2):eax & 0xf = 0x%x\n", times);
|
559 | f8bb0565 | Igor Mammedov | abort(); |
560 | f8bb0565 | Igor Mammedov | } |
561 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
562 | a36b1029 | aliguori | c->function = i; |
563 | a33609ca | aliguori | c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC; |
564 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
565 | a36b1029 | aliguori | } |
566 | a36b1029 | aliguori | break;
|
567 | a36b1029 | aliguori | } |
568 | 486bd5a2 | aliguori | case 4: |
569 | 486bd5a2 | aliguori | case 0xb: |
570 | 486bd5a2 | aliguori | case 0xd: |
571 | 486bd5a2 | aliguori | for (j = 0; ; j++) { |
572 | 31e8c696 | Andre Przywara | if (i == 0xd && j == 64) { |
573 | 31e8c696 | Andre Przywara | break;
|
574 | 31e8c696 | Andre Przywara | } |
575 | 486bd5a2 | aliguori | c->function = i; |
576 | 486bd5a2 | aliguori | c->flags = KVM_CPUID_FLAG_SIGNIFCANT_INDEX; |
577 | 486bd5a2 | aliguori | c->index = j; |
578 | a33609ca | aliguori | cpu_x86_cpuid(env, i, j, &c->eax, &c->ebx, &c->ecx, &c->edx); |
579 | 486bd5a2 | aliguori | |
580 | b9bec74b | Jan Kiszka | if (i == 4 && c->eax == 0) { |
581 | 486bd5a2 | aliguori | break;
|
582 | b9bec74b | Jan Kiszka | } |
583 | b9bec74b | Jan Kiszka | if (i == 0xb && !(c->ecx & 0xff00)) { |
584 | 486bd5a2 | aliguori | break;
|
585 | b9bec74b | Jan Kiszka | } |
586 | b9bec74b | Jan Kiszka | if (i == 0xd && c->eax == 0) { |
587 | 31e8c696 | Andre Przywara | continue;
|
588 | b9bec74b | Jan Kiszka | } |
589 | f8bb0565 | Igor Mammedov | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) {
|
590 | f8bb0565 | Igor Mammedov | fprintf(stderr, "cpuid_data is full, no space for "
|
591 | f8bb0565 | Igor Mammedov | "cpuid(eax:0x%x,ecx:0x%x)\n", i, j);
|
592 | f8bb0565 | Igor Mammedov | abort(); |
593 | f8bb0565 | Igor Mammedov | } |
594 | a33609ca | aliguori | c = &cpuid_data.entries[cpuid_i++]; |
595 | 486bd5a2 | aliguori | } |
596 | 486bd5a2 | aliguori | break;
|
597 | 486bd5a2 | aliguori | default:
|
598 | 486bd5a2 | aliguori | c->function = i; |
599 | a33609ca | aliguori | c->flags = 0;
|
600 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
601 | 486bd5a2 | aliguori | break;
|
602 | 486bd5a2 | aliguori | } |
603 | 05330448 | aliguori | } |
604 | 0d894367 | Paolo Bonzini | |
605 | 0d894367 | Paolo Bonzini | if (limit >= 0x0a) { |
606 | 0d894367 | Paolo Bonzini | uint32_t ver; |
607 | 0d894367 | Paolo Bonzini | |
608 | 0d894367 | Paolo Bonzini | cpu_x86_cpuid(env, 0x0a, 0, &ver, &unused, &unused, &unused); |
609 | 0d894367 | Paolo Bonzini | if ((ver & 0xff) > 0) { |
610 | 0d894367 | Paolo Bonzini | has_msr_architectural_pmu = true;
|
611 | 0d894367 | Paolo Bonzini | num_architectural_pmu_counters = (ver & 0xff00) >> 8; |
612 | 0d894367 | Paolo Bonzini | |
613 | 0d894367 | Paolo Bonzini | /* Shouldn't be more than 32, since that's the number of bits
|
614 | 0d894367 | Paolo Bonzini | * available in EBX to tell us _which_ counters are available.
|
615 | 0d894367 | Paolo Bonzini | * Play it safe.
|
616 | 0d894367 | Paolo Bonzini | */
|
617 | 0d894367 | Paolo Bonzini | if (num_architectural_pmu_counters > MAX_GP_COUNTERS) {
|
618 | 0d894367 | Paolo Bonzini | num_architectural_pmu_counters = MAX_GP_COUNTERS; |
619 | 0d894367 | Paolo Bonzini | } |
620 | 0d894367 | Paolo Bonzini | } |
621 | 0d894367 | Paolo Bonzini | } |
622 | 0d894367 | Paolo Bonzini | |
623 | a33609ca | aliguori | cpu_x86_cpuid(env, 0x80000000, 0, &limit, &unused, &unused, &unused); |
624 | 05330448 | aliguori | |
625 | 05330448 | aliguori | for (i = 0x80000000; i <= limit; i++) { |
626 | f8bb0565 | Igor Mammedov | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) {
|
627 | f8bb0565 | Igor Mammedov | fprintf(stderr, "unsupported xlevel value: 0x%x\n", limit);
|
628 | f8bb0565 | Igor Mammedov | abort(); |
629 | f8bb0565 | Igor Mammedov | } |
630 | bb0300dc | Gleb Natapov | c = &cpuid_data.entries[cpuid_i++]; |
631 | 05330448 | aliguori | |
632 | 05330448 | aliguori | c->function = i; |
633 | a33609ca | aliguori | c->flags = 0;
|
634 | a33609ca | aliguori | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
635 | 05330448 | aliguori | } |
636 | 05330448 | aliguori | |
637 | b3baa152 | brillywu@viatech.com.cn | /* Call Centaur's CPUID instructions they are supported. */
|
638 | b3baa152 | brillywu@viatech.com.cn | if (env->cpuid_xlevel2 > 0) { |
639 | b3baa152 | brillywu@viatech.com.cn | cpu_x86_cpuid(env, 0xC0000000, 0, &limit, &unused, &unused, &unused); |
640 | b3baa152 | brillywu@viatech.com.cn | |
641 | b3baa152 | brillywu@viatech.com.cn | for (i = 0xC0000000; i <= limit; i++) { |
642 | f8bb0565 | Igor Mammedov | if (cpuid_i == KVM_MAX_CPUID_ENTRIES) {
|
643 | f8bb0565 | Igor Mammedov | fprintf(stderr, "unsupported xlevel2 value: 0x%x\n", limit);
|
644 | f8bb0565 | Igor Mammedov | abort(); |
645 | f8bb0565 | Igor Mammedov | } |
646 | b3baa152 | brillywu@viatech.com.cn | c = &cpuid_data.entries[cpuid_i++]; |
647 | b3baa152 | brillywu@viatech.com.cn | |
648 | b3baa152 | brillywu@viatech.com.cn | c->function = i; |
649 | b3baa152 | brillywu@viatech.com.cn | c->flags = 0;
|
650 | b3baa152 | brillywu@viatech.com.cn | cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx);
|
651 | b3baa152 | brillywu@viatech.com.cn | } |
652 | b3baa152 | brillywu@viatech.com.cn | } |
653 | b3baa152 | brillywu@viatech.com.cn | |
654 | 05330448 | aliguori | cpuid_data.cpuid.nent = cpuid_i; |
655 | 05330448 | aliguori | |
656 | e7701825 | Marcelo Tosatti | if (((env->cpuid_version >> 8)&0xF) >= 6 |
657 | 0514ef2f | Eduardo Habkost | && (env->features[FEAT_1_EDX] & (CPUID_MCE | CPUID_MCA)) == |
658 | fc7a504c | Eduardo Habkost | (CPUID_MCE | CPUID_MCA) |
659 | a60f24b5 | Andreas Fรคrber | && kvm_check_extension(cs->kvm_state, KVM_CAP_MCE) > 0) {
|
660 | e7701825 | Marcelo Tosatti | uint64_t mcg_cap; |
661 | e7701825 | Marcelo Tosatti | int banks;
|
662 | 32a42024 | Jan Kiszka | int ret;
|
663 | e7701825 | Marcelo Tosatti | |
664 | a60f24b5 | Andreas Fรคrber | ret = kvm_get_mce_cap_supported(cs->kvm_state, &mcg_cap, &banks); |
665 | 75d49497 | Jan Kiszka | if (ret < 0) { |
666 | 75d49497 | Jan Kiszka | fprintf(stderr, "kvm_get_mce_cap_supported: %s", strerror(-ret));
|
667 | 75d49497 | Jan Kiszka | return ret;
|
668 | e7701825 | Marcelo Tosatti | } |
669 | 75d49497 | Jan Kiszka | |
670 | 75d49497 | Jan Kiszka | if (banks > MCE_BANKS_DEF) {
|
671 | 75d49497 | Jan Kiszka | banks = MCE_BANKS_DEF; |
672 | 75d49497 | Jan Kiszka | } |
673 | 75d49497 | Jan Kiszka | mcg_cap &= MCE_CAP_DEF; |
674 | 75d49497 | Jan Kiszka | mcg_cap |= banks; |
675 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(cs, KVM_X86_SETUP_MCE, &mcg_cap); |
676 | 75d49497 | Jan Kiszka | if (ret < 0) { |
677 | 75d49497 | Jan Kiszka | fprintf(stderr, "KVM_X86_SETUP_MCE: %s", strerror(-ret));
|
678 | 75d49497 | Jan Kiszka | return ret;
|
679 | 75d49497 | Jan Kiszka | } |
680 | 75d49497 | Jan Kiszka | |
681 | 75d49497 | Jan Kiszka | env->mcg_cap = mcg_cap; |
682 | e7701825 | Marcelo Tosatti | } |
683 | e7701825 | Marcelo Tosatti | |
684 | b8cc45d6 | Glauber Costa | qemu_add_vm_change_state_handler(cpu_update_state, env); |
685 | b8cc45d6 | Glauber Costa | |
686 | df67696e | Liu Jinsong | c = cpuid_find_entry(&cpuid_data.cpuid, 1, 0); |
687 | df67696e | Liu Jinsong | if (c) {
|
688 | df67696e | Liu Jinsong | has_msr_feature_control = !!(c->ecx & CPUID_EXT_VMX) || |
689 | df67696e | Liu Jinsong | !!(c->ecx & CPUID_EXT_SMX); |
690 | df67696e | Liu Jinsong | } |
691 | df67696e | Liu Jinsong | |
692 | 7e680753 | Michael S. Tsirkin | cpuid_data.cpuid.padding = 0;
|
693 | 1bc22652 | Andreas Fรคrber | r = kvm_vcpu_ioctl(cs, KVM_SET_CPUID2, &cpuid_data); |
694 | fdc9c41a | Jan Kiszka | if (r) {
|
695 | fdc9c41a | Jan Kiszka | return r;
|
696 | fdc9c41a | Jan Kiszka | } |
697 | e7429073 | Joerg Roedel | |
698 | a60f24b5 | Andreas Fรคrber | r = kvm_check_extension(cs->kvm_state, KVM_CAP_TSC_CONTROL); |
699 | e7429073 | Joerg Roedel | if (r && env->tsc_khz) {
|
700 | 1bc22652 | Andreas Fรคrber | r = kvm_vcpu_ioctl(cs, KVM_SET_TSC_KHZ, env->tsc_khz); |
701 | e7429073 | Joerg Roedel | if (r < 0) { |
702 | e7429073 | Joerg Roedel | fprintf(stderr, "KVM_SET_TSC_KHZ failed\n");
|
703 | e7429073 | Joerg Roedel | return r;
|
704 | e7429073 | Joerg Roedel | } |
705 | e7429073 | Joerg Roedel | } |
706 | e7429073 | Joerg Roedel | |
707 | fabacc0f | Jan Kiszka | if (kvm_has_xsave()) {
|
708 | fabacc0f | Jan Kiszka | env->kvm_xsave_buf = qemu_memalign(4096, sizeof(struct kvm_xsave)); |
709 | fabacc0f | Jan Kiszka | } |
710 | fabacc0f | Jan Kiszka | |
711 | e7429073 | Joerg Roedel | return 0; |
712 | 05330448 | aliguori | } |
713 | 05330448 | aliguori | |
714 | 20d695a9 | Andreas Fรคrber | void kvm_arch_reset_vcpu(CPUState *cs)
|
715 | caa5af0f | Jan Kiszka | { |
716 | 20d695a9 | Andreas Fรคrber | X86CPU *cpu = X86_CPU(cs); |
717 | 20d695a9 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
718 | dd673288 | Igor Mammedov | |
719 | e73223a5 | Gleb Natapov | env->exception_injected = -1;
|
720 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
721 | 1a5e9d2f | Jan Kiszka | env->xcr0 = 1;
|
722 | ddced198 | Marcelo Tosatti | if (kvm_irqchip_in_kernel()) {
|
723 | dd673288 | Igor Mammedov | env->mp_state = cpu_is_bsp(cpu) ? KVM_MP_STATE_RUNNABLE : |
724 | ddced198 | Marcelo Tosatti | KVM_MP_STATE_UNINITIALIZED; |
725 | ddced198 | Marcelo Tosatti | } else {
|
726 | ddced198 | Marcelo Tosatti | env->mp_state = KVM_MP_STATE_RUNNABLE; |
727 | ddced198 | Marcelo Tosatti | } |
728 | caa5af0f | Jan Kiszka | } |
729 | caa5af0f | Jan Kiszka | |
730 | c3a3a7d3 | Jan Kiszka | static int kvm_get_supported_msrs(KVMState *s) |
731 | 05330448 | aliguori | { |
732 | 75b10c43 | Marcelo Tosatti | static int kvm_supported_msrs; |
733 | c3a3a7d3 | Jan Kiszka | int ret = 0; |
734 | 05330448 | aliguori | |
735 | 05330448 | aliguori | /* first time */
|
736 | 75b10c43 | Marcelo Tosatti | if (kvm_supported_msrs == 0) { |
737 | 05330448 | aliguori | struct kvm_msr_list msr_list, *kvm_msr_list;
|
738 | 05330448 | aliguori | |
739 | 75b10c43 | Marcelo Tosatti | kvm_supported_msrs = -1;
|
740 | 05330448 | aliguori | |
741 | 05330448 | aliguori | /* Obtain MSR list from KVM. These are the MSRs that we must
|
742 | 05330448 | aliguori | * save/restore */
|
743 | 4c9f7372 | aliguori | msr_list.nmsrs = 0;
|
744 | c3a3a7d3 | Jan Kiszka | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, &msr_list); |
745 | 6fb6d245 | Jan Kiszka | if (ret < 0 && ret != -E2BIG) { |
746 | c3a3a7d3 | Jan Kiszka | return ret;
|
747 | 6fb6d245 | Jan Kiszka | } |
748 | d9db889f | Jan Kiszka | /* Old kernel modules had a bug and could write beyond the provided
|
749 | d9db889f | Jan Kiszka | memory. Allocate at least a safe amount of 1K. */
|
750 | 7267c094 | Anthony Liguori | kvm_msr_list = g_malloc0(MAX(1024, sizeof(msr_list) + |
751 | d9db889f | Jan Kiszka | msr_list.nmsrs * |
752 | d9db889f | Jan Kiszka | sizeof(msr_list.indices[0]))); |
753 | 05330448 | aliguori | |
754 | 55308450 | aliguori | kvm_msr_list->nmsrs = msr_list.nmsrs; |
755 | c3a3a7d3 | Jan Kiszka | ret = kvm_ioctl(s, KVM_GET_MSR_INDEX_LIST, kvm_msr_list); |
756 | 05330448 | aliguori | if (ret >= 0) { |
757 | 05330448 | aliguori | int i;
|
758 | 05330448 | aliguori | |
759 | 05330448 | aliguori | for (i = 0; i < kvm_msr_list->nmsrs; i++) { |
760 | 05330448 | aliguori | if (kvm_msr_list->indices[i] == MSR_STAR) {
|
761 | c3a3a7d3 | Jan Kiszka | has_msr_star = true;
|
762 | 75b10c43 | Marcelo Tosatti | continue;
|
763 | 75b10c43 | Marcelo Tosatti | } |
764 | 75b10c43 | Marcelo Tosatti | if (kvm_msr_list->indices[i] == MSR_VM_HSAVE_PA) {
|
765 | c3a3a7d3 | Jan Kiszka | has_msr_hsave_pa = true;
|
766 | 75b10c43 | Marcelo Tosatti | continue;
|
767 | 05330448 | aliguori | } |
768 | f28558d3 | Will Auld | if (kvm_msr_list->indices[i] == MSR_TSC_ADJUST) {
|
769 | f28558d3 | Will Auld | has_msr_tsc_adjust = true;
|
770 | f28558d3 | Will Auld | continue;
|
771 | f28558d3 | Will Auld | } |
772 | aa82ba54 | Liu, Jinsong | if (kvm_msr_list->indices[i] == MSR_IA32_TSCDEADLINE) {
|
773 | aa82ba54 | Liu, Jinsong | has_msr_tsc_deadline = true;
|
774 | aa82ba54 | Liu, Jinsong | continue;
|
775 | aa82ba54 | Liu, Jinsong | } |
776 | 21e87c46 | Avi Kivity | if (kvm_msr_list->indices[i] == MSR_IA32_MISC_ENABLE) {
|
777 | 21e87c46 | Avi Kivity | has_msr_misc_enable = true;
|
778 | 21e87c46 | Avi Kivity | continue;
|
779 | 21e87c46 | Avi Kivity | } |
780 | 05330448 | aliguori | } |
781 | 05330448 | aliguori | } |
782 | 05330448 | aliguori | |
783 | 7267c094 | Anthony Liguori | g_free(kvm_msr_list); |
784 | 05330448 | aliguori | } |
785 | 05330448 | aliguori | |
786 | c3a3a7d3 | Jan Kiszka | return ret;
|
787 | 05330448 | aliguori | } |
788 | 05330448 | aliguori | |
789 | cad1e282 | Jan Kiszka | int kvm_arch_init(KVMState *s)
|
790 | 20420430 | Sheng Yang | { |
791 | 11076198 | Jan Kiszka | uint64_t identity_base = 0xfffbc000;
|
792 | 39d6960a | Jan Kiszka | uint64_t shadow_mem; |
793 | 20420430 | Sheng Yang | int ret;
|
794 | 25d2e361 | Marcelo Tosatti | struct utsname utsname;
|
795 | 20420430 | Sheng Yang | |
796 | c3a3a7d3 | Jan Kiszka | ret = kvm_get_supported_msrs(s); |
797 | 20420430 | Sheng Yang | if (ret < 0) { |
798 | 20420430 | Sheng Yang | return ret;
|
799 | 20420430 | Sheng Yang | } |
800 | 25d2e361 | Marcelo Tosatti | |
801 | 25d2e361 | Marcelo Tosatti | uname(&utsname); |
802 | 25d2e361 | Marcelo Tosatti | lm_capable_kernel = strcmp(utsname.machine, "x86_64") == 0; |
803 | 25d2e361 | Marcelo Tosatti | |
804 | 4c5b10b7 | Jes Sorensen | /*
|
805 | 11076198 | Jan Kiszka | * On older Intel CPUs, KVM uses vm86 mode to emulate 16-bit code directly.
|
806 | 11076198 | Jan Kiszka | * In order to use vm86 mode, an EPT identity map and a TSS are needed.
|
807 | 11076198 | Jan Kiszka | * Since these must be part of guest physical memory, we need to allocate
|
808 | 11076198 | Jan Kiszka | * them, both by setting their start addresses in the kernel and by
|
809 | 11076198 | Jan Kiszka | * creating a corresponding e820 entry. We need 4 pages before the BIOS.
|
810 | 11076198 | Jan Kiszka | *
|
811 | 11076198 | Jan Kiszka | * Older KVM versions may not support setting the identity map base. In
|
812 | 11076198 | Jan Kiszka | * that case we need to stick with the default, i.e. a 256K maximum BIOS
|
813 | 11076198 | Jan Kiszka | * size.
|
814 | 4c5b10b7 | Jes Sorensen | */
|
815 | 11076198 | Jan Kiszka | if (kvm_check_extension(s, KVM_CAP_SET_IDENTITY_MAP_ADDR)) {
|
816 | 11076198 | Jan Kiszka | /* Allows up to 16M BIOSes. */
|
817 | 11076198 | Jan Kiszka | identity_base = 0xfeffc000;
|
818 | 11076198 | Jan Kiszka | |
819 | 11076198 | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_SET_IDENTITY_MAP_ADDR, &identity_base); |
820 | 11076198 | Jan Kiszka | if (ret < 0) { |
821 | 11076198 | Jan Kiszka | return ret;
|
822 | 11076198 | Jan Kiszka | } |
823 | 4c5b10b7 | Jes Sorensen | } |
824 | e56ff191 | Jan Kiszka | |
825 | 11076198 | Jan Kiszka | /* Set TSS base one page after EPT identity map. */
|
826 | 11076198 | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_SET_TSS_ADDR, identity_base + 0x1000);
|
827 | 20420430 | Sheng Yang | if (ret < 0) { |
828 | 20420430 | Sheng Yang | return ret;
|
829 | 20420430 | Sheng Yang | } |
830 | 20420430 | Sheng Yang | |
831 | 11076198 | Jan Kiszka | /* Tell fw_cfg to notify the BIOS to reserve the range. */
|
832 | 11076198 | Jan Kiszka | ret = e820_add_entry(identity_base, 0x4000, E820_RESERVED);
|
833 | 20420430 | Sheng Yang | if (ret < 0) { |
834 | 11076198 | Jan Kiszka | fprintf(stderr, "e820_add_entry() table is full\n");
|
835 | 20420430 | Sheng Yang | return ret;
|
836 | 20420430 | Sheng Yang | } |
837 | 3c85e74f | Huang Ying | qemu_register_reset(kvm_unpoison_all, NULL);
|
838 | 20420430 | Sheng Yang | |
839 | 36ad0e94 | Markus Armbruster | shadow_mem = qemu_opt_get_size(qemu_get_machine_opts(), |
840 | 36ad0e94 | Markus Armbruster | "kvm_shadow_mem", -1); |
841 | 36ad0e94 | Markus Armbruster | if (shadow_mem != -1) { |
842 | 36ad0e94 | Markus Armbruster | shadow_mem /= 4096;
|
843 | 36ad0e94 | Markus Armbruster | ret = kvm_vm_ioctl(s, KVM_SET_NR_MMU_PAGES, shadow_mem); |
844 | 36ad0e94 | Markus Armbruster | if (ret < 0) { |
845 | 36ad0e94 | Markus Armbruster | return ret;
|
846 | 39d6960a | Jan Kiszka | } |
847 | 39d6960a | Jan Kiszka | } |
848 | 11076198 | Jan Kiszka | return 0; |
849 | 05330448 | aliguori | } |
850 | b9bec74b | Jan Kiszka | |
851 | 05330448 | aliguori | static void set_v8086_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
852 | 05330448 | aliguori | { |
853 | 05330448 | aliguori | lhs->selector = rhs->selector; |
854 | 05330448 | aliguori | lhs->base = rhs->base; |
855 | 05330448 | aliguori | lhs->limit = rhs->limit; |
856 | 05330448 | aliguori | lhs->type = 3;
|
857 | 05330448 | aliguori | lhs->present = 1;
|
858 | 05330448 | aliguori | lhs->dpl = 3;
|
859 | 05330448 | aliguori | lhs->db = 0;
|
860 | 05330448 | aliguori | lhs->s = 1;
|
861 | 05330448 | aliguori | lhs->l = 0;
|
862 | 05330448 | aliguori | lhs->g = 0;
|
863 | 05330448 | aliguori | lhs->avl = 0;
|
864 | 05330448 | aliguori | lhs->unusable = 0;
|
865 | 05330448 | aliguori | } |
866 | 05330448 | aliguori | |
867 | 05330448 | aliguori | static void set_seg(struct kvm_segment *lhs, const SegmentCache *rhs) |
868 | 05330448 | aliguori | { |
869 | 05330448 | aliguori | unsigned flags = rhs->flags;
|
870 | 05330448 | aliguori | lhs->selector = rhs->selector; |
871 | 05330448 | aliguori | lhs->base = rhs->base; |
872 | 05330448 | aliguori | lhs->limit = rhs->limit; |
873 | 05330448 | aliguori | lhs->type = (flags >> DESC_TYPE_SHIFT) & 15;
|
874 | 05330448 | aliguori | lhs->present = (flags & DESC_P_MASK) != 0;
|
875 | acaa7550 | Jan Kiszka | lhs->dpl = (flags >> DESC_DPL_SHIFT) & 3;
|
876 | 05330448 | aliguori | lhs->db = (flags >> DESC_B_SHIFT) & 1;
|
877 | 05330448 | aliguori | lhs->s = (flags & DESC_S_MASK) != 0;
|
878 | 05330448 | aliguori | lhs->l = (flags >> DESC_L_SHIFT) & 1;
|
879 | 05330448 | aliguori | lhs->g = (flags & DESC_G_MASK) != 0;
|
880 | 05330448 | aliguori | lhs->avl = (flags & DESC_AVL_MASK) != 0;
|
881 | 05330448 | aliguori | lhs->unusable = 0;
|
882 | 7e680753 | Michael S. Tsirkin | lhs->padding = 0;
|
883 | 05330448 | aliguori | } |
884 | 05330448 | aliguori | |
885 | 05330448 | aliguori | static void get_seg(SegmentCache *lhs, const struct kvm_segment *rhs) |
886 | 05330448 | aliguori | { |
887 | 05330448 | aliguori | lhs->selector = rhs->selector; |
888 | 05330448 | aliguori | lhs->base = rhs->base; |
889 | 05330448 | aliguori | lhs->limit = rhs->limit; |
890 | b9bec74b | Jan Kiszka | lhs->flags = (rhs->type << DESC_TYPE_SHIFT) | |
891 | b9bec74b | Jan Kiszka | (rhs->present * DESC_P_MASK) | |
892 | b9bec74b | Jan Kiszka | (rhs->dpl << DESC_DPL_SHIFT) | |
893 | b9bec74b | Jan Kiszka | (rhs->db << DESC_B_SHIFT) | |
894 | b9bec74b | Jan Kiszka | (rhs->s * DESC_S_MASK) | |
895 | b9bec74b | Jan Kiszka | (rhs->l << DESC_L_SHIFT) | |
896 | b9bec74b | Jan Kiszka | (rhs->g * DESC_G_MASK) | |
897 | b9bec74b | Jan Kiszka | (rhs->avl * DESC_AVL_MASK); |
898 | 05330448 | aliguori | } |
899 | 05330448 | aliguori | |
900 | 05330448 | aliguori | static void kvm_getput_reg(__u64 *kvm_reg, target_ulong *qemu_reg, int set) |
901 | 05330448 | aliguori | { |
902 | b9bec74b | Jan Kiszka | if (set) {
|
903 | 05330448 | aliguori | *kvm_reg = *qemu_reg; |
904 | b9bec74b | Jan Kiszka | } else {
|
905 | 05330448 | aliguori | *qemu_reg = *kvm_reg; |
906 | b9bec74b | Jan Kiszka | } |
907 | 05330448 | aliguori | } |
908 | 05330448 | aliguori | |
909 | 1bc22652 | Andreas Fรคrber | static int kvm_getput_regs(X86CPU *cpu, int set) |
910 | 05330448 | aliguori | { |
911 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
912 | 05330448 | aliguori | struct kvm_regs regs;
|
913 | 05330448 | aliguori | int ret = 0; |
914 | 05330448 | aliguori | |
915 | 05330448 | aliguori | if (!set) {
|
916 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_REGS, ®s); |
917 | b9bec74b | Jan Kiszka | if (ret < 0) { |
918 | 05330448 | aliguori | return ret;
|
919 | b9bec74b | Jan Kiszka | } |
920 | 05330448 | aliguori | } |
921 | 05330448 | aliguori | |
922 | 05330448 | aliguori | kvm_getput_reg(®s.rax, &env->regs[R_EAX], set); |
923 | 05330448 | aliguori | kvm_getput_reg(®s.rbx, &env->regs[R_EBX], set); |
924 | 05330448 | aliguori | kvm_getput_reg(®s.rcx, &env->regs[R_ECX], set); |
925 | 05330448 | aliguori | kvm_getput_reg(®s.rdx, &env->regs[R_EDX], set); |
926 | 05330448 | aliguori | kvm_getput_reg(®s.rsi, &env->regs[R_ESI], set); |
927 | 05330448 | aliguori | kvm_getput_reg(®s.rdi, &env->regs[R_EDI], set); |
928 | 05330448 | aliguori | kvm_getput_reg(®s.rsp, &env->regs[R_ESP], set); |
929 | 05330448 | aliguori | kvm_getput_reg(®s.rbp, &env->regs[R_EBP], set); |
930 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
931 | 05330448 | aliguori | kvm_getput_reg(®s.r8, &env->regs[8], set);
|
932 | 05330448 | aliguori | kvm_getput_reg(®s.r9, &env->regs[9], set);
|
933 | 05330448 | aliguori | kvm_getput_reg(®s.r10, &env->regs[10], set);
|
934 | 05330448 | aliguori | kvm_getput_reg(®s.r11, &env->regs[11], set);
|
935 | 05330448 | aliguori | kvm_getput_reg(®s.r12, &env->regs[12], set);
|
936 | 05330448 | aliguori | kvm_getput_reg(®s.r13, &env->regs[13], set);
|
937 | 05330448 | aliguori | kvm_getput_reg(®s.r14, &env->regs[14], set);
|
938 | 05330448 | aliguori | kvm_getput_reg(®s.r15, &env->regs[15], set);
|
939 | 05330448 | aliguori | #endif
|
940 | 05330448 | aliguori | |
941 | 05330448 | aliguori | kvm_getput_reg(®s.rflags, &env->eflags, set); |
942 | 05330448 | aliguori | kvm_getput_reg(®s.rip, &env->eip, set); |
943 | 05330448 | aliguori | |
944 | b9bec74b | Jan Kiszka | if (set) {
|
945 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_REGS, ®s); |
946 | b9bec74b | Jan Kiszka | } |
947 | 05330448 | aliguori | |
948 | 05330448 | aliguori | return ret;
|
949 | 05330448 | aliguori | } |
950 | 05330448 | aliguori | |
951 | 1bc22652 | Andreas Fรคrber | static int kvm_put_fpu(X86CPU *cpu) |
952 | 05330448 | aliguori | { |
953 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
954 | 05330448 | aliguori | struct kvm_fpu fpu;
|
955 | 05330448 | aliguori | int i;
|
956 | 05330448 | aliguori | |
957 | 05330448 | aliguori | memset(&fpu, 0, sizeof fpu); |
958 | 05330448 | aliguori | fpu.fsw = env->fpus & ~(7 << 11); |
959 | 05330448 | aliguori | fpu.fsw |= (env->fpstt & 7) << 11; |
960 | 05330448 | aliguori | fpu.fcw = env->fpuc; |
961 | 42cc8fa6 | Jan Kiszka | fpu.last_opcode = env->fpop; |
962 | 42cc8fa6 | Jan Kiszka | fpu.last_ip = env->fpip; |
963 | 42cc8fa6 | Jan Kiszka | fpu.last_dp = env->fpdp; |
964 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
965 | b9bec74b | Jan Kiszka | fpu.ftwx |= (!env->fptags[i]) << i; |
966 | b9bec74b | Jan Kiszka | } |
967 | 05330448 | aliguori | memcpy(fpu.fpr, env->fpregs, sizeof env->fpregs);
|
968 | 05330448 | aliguori | memcpy(fpu.xmm, env->xmm_regs, sizeof env->xmm_regs);
|
969 | 05330448 | aliguori | fpu.mxcsr = env->mxcsr; |
970 | 05330448 | aliguori | |
971 | 1bc22652 | Andreas Fรคrber | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_FPU, &fpu);
|
972 | 05330448 | aliguori | } |
973 | 05330448 | aliguori | |
974 | 6b42494b | Jan Kiszka | #define XSAVE_FCW_FSW 0 |
975 | 6b42494b | Jan Kiszka | #define XSAVE_FTW_FOP 1 |
976 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RIP 2 |
977 | f1665b21 | Sheng Yang | #define XSAVE_CWD_RDP 4 |
978 | f1665b21 | Sheng Yang | #define XSAVE_MXCSR 6 |
979 | f1665b21 | Sheng Yang | #define XSAVE_ST_SPACE 8 |
980 | f1665b21 | Sheng Yang | #define XSAVE_XMM_SPACE 40 |
981 | f1665b21 | Sheng Yang | #define XSAVE_XSTATE_BV 128 |
982 | f1665b21 | Sheng Yang | #define XSAVE_YMMH_SPACE 144 |
983 | f1665b21 | Sheng Yang | |
984 | 1bc22652 | Andreas Fรคrber | static int kvm_put_xsave(X86CPU *cpu) |
985 | f1665b21 | Sheng Yang | { |
986 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
987 | fabacc0f | Jan Kiszka | struct kvm_xsave* xsave = env->kvm_xsave_buf;
|
988 | 42cc8fa6 | Jan Kiszka | uint16_t cwd, swd, twd; |
989 | fabacc0f | Jan Kiszka | int i, r;
|
990 | f1665b21 | Sheng Yang | |
991 | b9bec74b | Jan Kiszka | if (!kvm_has_xsave()) {
|
992 | 1bc22652 | Andreas Fรคrber | return kvm_put_fpu(cpu);
|
993 | b9bec74b | Jan Kiszka | } |
994 | f1665b21 | Sheng Yang | |
995 | f1665b21 | Sheng Yang | memset(xsave, 0, sizeof(struct kvm_xsave)); |
996 | 6115c0a8 | Blue Swirl | twd = 0;
|
997 | f1665b21 | Sheng Yang | swd = env->fpus & ~(7 << 11); |
998 | f1665b21 | Sheng Yang | swd |= (env->fpstt & 7) << 11; |
999 | f1665b21 | Sheng Yang | cwd = env->fpuc; |
1000 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
1001 | f1665b21 | Sheng Yang | twd |= (!env->fptags[i]) << i; |
1002 | b9bec74b | Jan Kiszka | } |
1003 | 6b42494b | Jan Kiszka | xsave->region[XSAVE_FCW_FSW] = (uint32_t)(swd << 16) + cwd;
|
1004 | 6b42494b | Jan Kiszka | xsave->region[XSAVE_FTW_FOP] = (uint32_t)(env->fpop << 16) + twd;
|
1005 | 42cc8fa6 | Jan Kiszka | memcpy(&xsave->region[XSAVE_CWD_RIP], &env->fpip, sizeof(env->fpip));
|
1006 | 42cc8fa6 | Jan Kiszka | memcpy(&xsave->region[XSAVE_CWD_RDP], &env->fpdp, sizeof(env->fpdp));
|
1007 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs, |
1008 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
1009 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_XMM_SPACE], env->xmm_regs, |
1010 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
1011 | f1665b21 | Sheng Yang | xsave->region[XSAVE_MXCSR] = env->mxcsr; |
1012 | f1665b21 | Sheng Yang | *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV] = env->xstate_bv; |
1013 | f1665b21 | Sheng Yang | memcpy(&xsave->region[XSAVE_YMMH_SPACE], env->ymmh_regs, |
1014 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
1015 | 1bc22652 | Andreas Fรคrber | r = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_XSAVE, xsave); |
1016 | 0f53994f | Marcelo Tosatti | return r;
|
1017 | f1665b21 | Sheng Yang | } |
1018 | f1665b21 | Sheng Yang | |
1019 | 1bc22652 | Andreas Fรคrber | static int kvm_put_xcrs(X86CPU *cpu) |
1020 | f1665b21 | Sheng Yang | { |
1021 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1022 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
1023 | f1665b21 | Sheng Yang | |
1024 | b9bec74b | Jan Kiszka | if (!kvm_has_xcrs()) {
|
1025 | f1665b21 | Sheng Yang | return 0; |
1026 | b9bec74b | Jan Kiszka | } |
1027 | f1665b21 | Sheng Yang | |
1028 | f1665b21 | Sheng Yang | xcrs.nr_xcrs = 1;
|
1029 | f1665b21 | Sheng Yang | xcrs.flags = 0;
|
1030 | f1665b21 | Sheng Yang | xcrs.xcrs[0].xcr = 0; |
1031 | f1665b21 | Sheng Yang | xcrs.xcrs[0].value = env->xcr0;
|
1032 | 1bc22652 | Andreas Fรคrber | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_XCRS, &xcrs);
|
1033 | f1665b21 | Sheng Yang | } |
1034 | f1665b21 | Sheng Yang | |
1035 | 1bc22652 | Andreas Fรคrber | static int kvm_put_sregs(X86CPU *cpu) |
1036 | 05330448 | aliguori | { |
1037 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1038 | 05330448 | aliguori | struct kvm_sregs sregs;
|
1039 | 05330448 | aliguori | |
1040 | 0e607a80 | Jan Kiszka | memset(sregs.interrupt_bitmap, 0, sizeof(sregs.interrupt_bitmap)); |
1041 | 0e607a80 | Jan Kiszka | if (env->interrupt_injected >= 0) { |
1042 | 0e607a80 | Jan Kiszka | sregs.interrupt_bitmap[env->interrupt_injected / 64] |=
|
1043 | 0e607a80 | Jan Kiszka | (uint64_t)1 << (env->interrupt_injected % 64); |
1044 | 0e607a80 | Jan Kiszka | } |
1045 | 05330448 | aliguori | |
1046 | 05330448 | aliguori | if ((env->eflags & VM_MASK)) {
|
1047 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.cs, &env->segs[R_CS]); |
1048 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.ds, &env->segs[R_DS]); |
1049 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.es, &env->segs[R_ES]); |
1050 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.fs, &env->segs[R_FS]); |
1051 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.gs, &env->segs[R_GS]); |
1052 | b9bec74b | Jan Kiszka | set_v8086_seg(&sregs.ss, &env->segs[R_SS]); |
1053 | 05330448 | aliguori | } else {
|
1054 | b9bec74b | Jan Kiszka | set_seg(&sregs.cs, &env->segs[R_CS]); |
1055 | b9bec74b | Jan Kiszka | set_seg(&sregs.ds, &env->segs[R_DS]); |
1056 | b9bec74b | Jan Kiszka | set_seg(&sregs.es, &env->segs[R_ES]); |
1057 | b9bec74b | Jan Kiszka | set_seg(&sregs.fs, &env->segs[R_FS]); |
1058 | b9bec74b | Jan Kiszka | set_seg(&sregs.gs, &env->segs[R_GS]); |
1059 | b9bec74b | Jan Kiszka | set_seg(&sregs.ss, &env->segs[R_SS]); |
1060 | 05330448 | aliguori | } |
1061 | 05330448 | aliguori | |
1062 | 05330448 | aliguori | set_seg(&sregs.tr, &env->tr); |
1063 | 05330448 | aliguori | set_seg(&sregs.ldt, &env->ldt); |
1064 | 05330448 | aliguori | |
1065 | 05330448 | aliguori | sregs.idt.limit = env->idt.limit; |
1066 | 05330448 | aliguori | sregs.idt.base = env->idt.base; |
1067 | 7e680753 | Michael S. Tsirkin | memset(sregs.idt.padding, 0, sizeof sregs.idt.padding); |
1068 | 05330448 | aliguori | sregs.gdt.limit = env->gdt.limit; |
1069 | 05330448 | aliguori | sregs.gdt.base = env->gdt.base; |
1070 | 7e680753 | Michael S. Tsirkin | memset(sregs.gdt.padding, 0, sizeof sregs.gdt.padding); |
1071 | 05330448 | aliguori | |
1072 | 05330448 | aliguori | sregs.cr0 = env->cr[0];
|
1073 | 05330448 | aliguori | sregs.cr2 = env->cr[2];
|
1074 | 05330448 | aliguori | sregs.cr3 = env->cr[3];
|
1075 | 05330448 | aliguori | sregs.cr4 = env->cr[4];
|
1076 | 05330448 | aliguori | |
1077 | 4a942cea | Blue Swirl | sregs.cr8 = cpu_get_apic_tpr(env->apic_state); |
1078 | 4a942cea | Blue Swirl | sregs.apic_base = cpu_get_apic_base(env->apic_state); |
1079 | 05330448 | aliguori | |
1080 | 05330448 | aliguori | sregs.efer = env->efer; |
1081 | 05330448 | aliguori | |
1082 | 1bc22652 | Andreas Fรคrber | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_SREGS, &sregs);
|
1083 | 05330448 | aliguori | } |
1084 | 05330448 | aliguori | |
1085 | 05330448 | aliguori | static void kvm_msr_entry_set(struct kvm_msr_entry *entry, |
1086 | 05330448 | aliguori | uint32_t index, uint64_t value) |
1087 | 05330448 | aliguori | { |
1088 | 05330448 | aliguori | entry->index = index; |
1089 | 05330448 | aliguori | entry->data = value; |
1090 | 05330448 | aliguori | } |
1091 | 05330448 | aliguori | |
1092 | 7477cd38 | Marcelo Tosatti | static int kvm_put_tscdeadline_msr(X86CPU *cpu) |
1093 | 7477cd38 | Marcelo Tosatti | { |
1094 | 7477cd38 | Marcelo Tosatti | CPUX86State *env = &cpu->env; |
1095 | 7477cd38 | Marcelo Tosatti | struct {
|
1096 | 7477cd38 | Marcelo Tosatti | struct kvm_msrs info;
|
1097 | 7477cd38 | Marcelo Tosatti | struct kvm_msr_entry entries[1]; |
1098 | 7477cd38 | Marcelo Tosatti | } msr_data; |
1099 | 7477cd38 | Marcelo Tosatti | struct kvm_msr_entry *msrs = msr_data.entries;
|
1100 | 7477cd38 | Marcelo Tosatti | |
1101 | 7477cd38 | Marcelo Tosatti | if (!has_msr_tsc_deadline) {
|
1102 | 7477cd38 | Marcelo Tosatti | return 0; |
1103 | 7477cd38 | Marcelo Tosatti | } |
1104 | 7477cd38 | Marcelo Tosatti | |
1105 | 7477cd38 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[0], MSR_IA32_TSCDEADLINE, env->tsc_deadline);
|
1106 | 7477cd38 | Marcelo Tosatti | |
1107 | 7477cd38 | Marcelo Tosatti | msr_data.info.nmsrs = 1;
|
1108 | 7477cd38 | Marcelo Tosatti | |
1109 | 7477cd38 | Marcelo Tosatti | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, &msr_data);
|
1110 | 7477cd38 | Marcelo Tosatti | } |
1111 | 7477cd38 | Marcelo Tosatti | |
1112 | 1bc22652 | Andreas Fรคrber | static int kvm_put_msrs(X86CPU *cpu, int level) |
1113 | 05330448 | aliguori | { |
1114 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1115 | 05330448 | aliguori | struct {
|
1116 | 05330448 | aliguori | struct kvm_msrs info;
|
1117 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
1118 | 05330448 | aliguori | } msr_data; |
1119 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
1120 | 0d894367 | Paolo Bonzini | int n = 0, i; |
1121 | 05330448 | aliguori | |
1122 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_CS, env->sysenter_cs); |
1123 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_ESP, env->sysenter_esp); |
1124 | 05330448 | aliguori | kvm_msr_entry_set(&msrs[n++], MSR_IA32_SYSENTER_EIP, env->sysenter_eip); |
1125 | 0c03266a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_PAT, env->pat); |
1126 | c3a3a7d3 | Jan Kiszka | if (has_msr_star) {
|
1127 | b9bec74b | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_STAR, env->star); |
1128 | b9bec74b | Jan Kiszka | } |
1129 | c3a3a7d3 | Jan Kiszka | if (has_msr_hsave_pa) {
|
1130 | 75b10c43 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_VM_HSAVE_PA, env->vm_hsave); |
1131 | b9bec74b | Jan Kiszka | } |
1132 | f28558d3 | Will Auld | if (has_msr_tsc_adjust) {
|
1133 | f28558d3 | Will Auld | kvm_msr_entry_set(&msrs[n++], MSR_TSC_ADJUST, env->tsc_adjust); |
1134 | f28558d3 | Will Auld | } |
1135 | 21e87c46 | Avi Kivity | if (has_msr_misc_enable) {
|
1136 | 21e87c46 | Avi Kivity | kvm_msr_entry_set(&msrs[n++], MSR_IA32_MISC_ENABLE, |
1137 | 21e87c46 | Avi Kivity | env->msr_ia32_misc_enable); |
1138 | 21e87c46 | Avi Kivity | } |
1139 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
1140 | 25d2e361 | Marcelo Tosatti | if (lm_capable_kernel) {
|
1141 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_CSTAR, env->cstar); |
1142 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_KERNELGSBASE, env->kernelgsbase); |
1143 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_FMASK, env->fmask); |
1144 | 25d2e361 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_LSTAR, env->lstar); |
1145 | 25d2e361 | Marcelo Tosatti | } |
1146 | 05330448 | aliguori | #endif
|
1147 | ea643051 | Jan Kiszka | if (level == KVM_PUT_FULL_STATE) {
|
1148 | 384331a6 | Marcelo Tosatti | /*
|
1149 | 384331a6 | Marcelo Tosatti | * KVM is yet unable to synchronize TSC values of multiple VCPUs on
|
1150 | 384331a6 | Marcelo Tosatti | * writeback. Until this is fixed, we only write the offset to SMP
|
1151 | 384331a6 | Marcelo Tosatti | * guests after migration, desynchronizing the VCPUs, but avoiding
|
1152 | 384331a6 | Marcelo Tosatti | * huge jump-backs that would occur without any writeback at all.
|
1153 | 384331a6 | Marcelo Tosatti | */
|
1154 | 384331a6 | Marcelo Tosatti | if (smp_cpus == 1 || env->tsc != 0) { |
1155 | 384331a6 | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_IA32_TSC, env->tsc); |
1156 | 384331a6 | Marcelo Tosatti | } |
1157 | ff5c186b | Jan Kiszka | } |
1158 | ff5c186b | Jan Kiszka | /*
|
1159 | 0d894367 | Paolo Bonzini | * The following MSRs have side effects on the guest or are too heavy
|
1160 | 0d894367 | Paolo Bonzini | * for normal writeback. Limit them to reset or full state updates.
|
1161 | ff5c186b | Jan Kiszka | */
|
1162 | ff5c186b | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1163 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_SYSTEM_TIME, |
1164 | ea643051 | Jan Kiszka | env->system_time_msr); |
1165 | ea643051 | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_WALL_CLOCK, env->wall_clock_msr); |
1166 | c5999bfc | Jan Kiszka | if (has_msr_async_pf_en) {
|
1167 | c5999bfc | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_KVM_ASYNC_PF_EN, |
1168 | c5999bfc | Jan Kiszka | env->async_pf_en_msr); |
1169 | c5999bfc | Jan Kiszka | } |
1170 | bc9a839d | Michael S. Tsirkin | if (has_msr_pv_eoi_en) {
|
1171 | bc9a839d | Michael S. Tsirkin | kvm_msr_entry_set(&msrs[n++], MSR_KVM_PV_EOI_EN, |
1172 | bc9a839d | Michael S. Tsirkin | env->pv_eoi_en_msr); |
1173 | bc9a839d | Michael S. Tsirkin | } |
1174 | 917367aa | Marcelo Tosatti | if (has_msr_kvm_steal_time) {
|
1175 | 917367aa | Marcelo Tosatti | kvm_msr_entry_set(&msrs[n++], MSR_KVM_STEAL_TIME, |
1176 | 917367aa | Marcelo Tosatti | env->steal_time_msr); |
1177 | 917367aa | Marcelo Tosatti | } |
1178 | 0d894367 | Paolo Bonzini | if (has_msr_architectural_pmu) {
|
1179 | 0d894367 | Paolo Bonzini | /* Stop the counter. */
|
1180 | 0d894367 | Paolo Bonzini | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_FIXED_CTR_CTRL, 0);
|
1181 | 0d894367 | Paolo Bonzini | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_CTRL, 0);
|
1182 | 0d894367 | Paolo Bonzini | |
1183 | 0d894367 | Paolo Bonzini | /* Set the counter values. */
|
1184 | 0d894367 | Paolo Bonzini | for (i = 0; i < MAX_FIXED_COUNTERS; i++) { |
1185 | 0d894367 | Paolo Bonzini | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_FIXED_CTR0 + i, |
1186 | 0d894367 | Paolo Bonzini | env->msr_fixed_counters[i]); |
1187 | 0d894367 | Paolo Bonzini | } |
1188 | 0d894367 | Paolo Bonzini | for (i = 0; i < num_architectural_pmu_counters; i++) { |
1189 | 0d894367 | Paolo Bonzini | kvm_msr_entry_set(&msrs[n++], MSR_P6_PERFCTR0 + i, |
1190 | 0d894367 | Paolo Bonzini | env->msr_gp_counters[i]); |
1191 | 0d894367 | Paolo Bonzini | kvm_msr_entry_set(&msrs[n++], MSR_P6_EVNTSEL0 + i, |
1192 | 0d894367 | Paolo Bonzini | env->msr_gp_evtsel[i]); |
1193 | 0d894367 | Paolo Bonzini | } |
1194 | 0d894367 | Paolo Bonzini | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_STATUS, |
1195 | 0d894367 | Paolo Bonzini | env->msr_global_status); |
1196 | 0d894367 | Paolo Bonzini | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_OVF_CTRL, |
1197 | 0d894367 | Paolo Bonzini | env->msr_global_ovf_ctrl); |
1198 | 0d894367 | Paolo Bonzini | |
1199 | 0d894367 | Paolo Bonzini | /* Now start the PMU. */
|
1200 | 0d894367 | Paolo Bonzini | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_FIXED_CTR_CTRL, |
1201 | 0d894367 | Paolo Bonzini | env->msr_fixed_ctr_ctrl); |
1202 | 0d894367 | Paolo Bonzini | kvm_msr_entry_set(&msrs[n++], MSR_CORE_PERF_GLOBAL_CTRL, |
1203 | 0d894367 | Paolo Bonzini | env->msr_global_ctrl); |
1204 | 0d894367 | Paolo Bonzini | } |
1205 | 92067bf4 | Igor Mammedov | if (hyperv_hypercall_available(cpu)) {
|
1206 | eab70139 | Vadim Rozenfeld | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_GUEST_OS_ID, 0);
|
1207 | eab70139 | Vadim Rozenfeld | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_HYPERCALL, 0);
|
1208 | eab70139 | Vadim Rozenfeld | } |
1209 | 92067bf4 | Igor Mammedov | if (cpu->hyperv_vapic) {
|
1210 | eab70139 | Vadim Rozenfeld | kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_APIC_ASSIST_PAGE, 0);
|
1211 | eab70139 | Vadim Rozenfeld | } |
1212 | df67696e | Liu Jinsong | if (has_msr_feature_control) {
|
1213 | df67696e | Liu Jinsong | kvm_msr_entry_set(&msrs[n++], MSR_IA32_FEATURE_CONTROL, |
1214 | df67696e | Liu Jinsong | env->msr_ia32_feature_control); |
1215 | df67696e | Liu Jinsong | } |
1216 | ea643051 | Jan Kiszka | } |
1217 | 57780495 | Marcelo Tosatti | if (env->mcg_cap) {
|
1218 | d8da8574 | Hidetoshi Seto | int i;
|
1219 | b9bec74b | Jan Kiszka | |
1220 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MCG_STATUS, env->mcg_status); |
1221 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MCG_CTL, env->mcg_ctl); |
1222 | c34d440a | Jan Kiszka | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
1223 | c34d440a | Jan Kiszka | kvm_msr_entry_set(&msrs[n++], MSR_MC0_CTL + i, env->mce_banks[i]); |
1224 | 57780495 | Marcelo Tosatti | } |
1225 | 57780495 | Marcelo Tosatti | } |
1226 | 1a03675d | Glauber Costa | |
1227 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
1228 | 05330448 | aliguori | |
1229 | 1bc22652 | Andreas Fรคrber | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MSRS, &msr_data);
|
1230 | 05330448 | aliguori | |
1231 | 05330448 | aliguori | } |
1232 | 05330448 | aliguori | |
1233 | 05330448 | aliguori | |
1234 | 1bc22652 | Andreas Fรคrber | static int kvm_get_fpu(X86CPU *cpu) |
1235 | 05330448 | aliguori | { |
1236 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1237 | 05330448 | aliguori | struct kvm_fpu fpu;
|
1238 | 05330448 | aliguori | int i, ret;
|
1239 | 05330448 | aliguori | |
1240 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_FPU, &fpu); |
1241 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1242 | 05330448 | aliguori | return ret;
|
1243 | b9bec74b | Jan Kiszka | } |
1244 | 05330448 | aliguori | |
1245 | 05330448 | aliguori | env->fpstt = (fpu.fsw >> 11) & 7; |
1246 | 05330448 | aliguori | env->fpus = fpu.fsw; |
1247 | 05330448 | aliguori | env->fpuc = fpu.fcw; |
1248 | 42cc8fa6 | Jan Kiszka | env->fpop = fpu.last_opcode; |
1249 | 42cc8fa6 | Jan Kiszka | env->fpip = fpu.last_ip; |
1250 | 42cc8fa6 | Jan Kiszka | env->fpdp = fpu.last_dp; |
1251 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
1252 | b9bec74b | Jan Kiszka | env->fptags[i] = !((fpu.ftwx >> i) & 1);
|
1253 | b9bec74b | Jan Kiszka | } |
1254 | 05330448 | aliguori | memcpy(env->fpregs, fpu.fpr, sizeof env->fpregs);
|
1255 | 05330448 | aliguori | memcpy(env->xmm_regs, fpu.xmm, sizeof env->xmm_regs);
|
1256 | 05330448 | aliguori | env->mxcsr = fpu.mxcsr; |
1257 | 05330448 | aliguori | |
1258 | 05330448 | aliguori | return 0; |
1259 | 05330448 | aliguori | } |
1260 | 05330448 | aliguori | |
1261 | 1bc22652 | Andreas Fรคrber | static int kvm_get_xsave(X86CPU *cpu) |
1262 | f1665b21 | Sheng Yang | { |
1263 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1264 | fabacc0f | Jan Kiszka | struct kvm_xsave* xsave = env->kvm_xsave_buf;
|
1265 | f1665b21 | Sheng Yang | int ret, i;
|
1266 | 42cc8fa6 | Jan Kiszka | uint16_t cwd, swd, twd; |
1267 | f1665b21 | Sheng Yang | |
1268 | b9bec74b | Jan Kiszka | if (!kvm_has_xsave()) {
|
1269 | 1bc22652 | Andreas Fรคrber | return kvm_get_fpu(cpu);
|
1270 | b9bec74b | Jan Kiszka | } |
1271 | f1665b21 | Sheng Yang | |
1272 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_XSAVE, xsave); |
1273 | 0f53994f | Marcelo Tosatti | if (ret < 0) { |
1274 | f1665b21 | Sheng Yang | return ret;
|
1275 | 0f53994f | Marcelo Tosatti | } |
1276 | f1665b21 | Sheng Yang | |
1277 | 6b42494b | Jan Kiszka | cwd = (uint16_t)xsave->region[XSAVE_FCW_FSW]; |
1278 | 6b42494b | Jan Kiszka | swd = (uint16_t)(xsave->region[XSAVE_FCW_FSW] >> 16);
|
1279 | 6b42494b | Jan Kiszka | twd = (uint16_t)xsave->region[XSAVE_FTW_FOP]; |
1280 | 6b42494b | Jan Kiszka | env->fpop = (uint16_t)(xsave->region[XSAVE_FTW_FOP] >> 16);
|
1281 | f1665b21 | Sheng Yang | env->fpstt = (swd >> 11) & 7; |
1282 | f1665b21 | Sheng Yang | env->fpus = swd; |
1283 | f1665b21 | Sheng Yang | env->fpuc = cwd; |
1284 | b9bec74b | Jan Kiszka | for (i = 0; i < 8; ++i) { |
1285 | f1665b21 | Sheng Yang | env->fptags[i] = !((twd >> i) & 1);
|
1286 | b9bec74b | Jan Kiszka | } |
1287 | 42cc8fa6 | Jan Kiszka | memcpy(&env->fpip, &xsave->region[XSAVE_CWD_RIP], sizeof(env->fpip));
|
1288 | 42cc8fa6 | Jan Kiszka | memcpy(&env->fpdp, &xsave->region[XSAVE_CWD_RDP], sizeof(env->fpdp));
|
1289 | f1665b21 | Sheng Yang | env->mxcsr = xsave->region[XSAVE_MXCSR]; |
1290 | f1665b21 | Sheng Yang | memcpy(env->fpregs, &xsave->region[XSAVE_ST_SPACE], |
1291 | f1665b21 | Sheng Yang | sizeof env->fpregs);
|
1292 | f1665b21 | Sheng Yang | memcpy(env->xmm_regs, &xsave->region[XSAVE_XMM_SPACE], |
1293 | f1665b21 | Sheng Yang | sizeof env->xmm_regs);
|
1294 | f1665b21 | Sheng Yang | env->xstate_bv = *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV]; |
1295 | f1665b21 | Sheng Yang | memcpy(env->ymmh_regs, &xsave->region[XSAVE_YMMH_SPACE], |
1296 | f1665b21 | Sheng Yang | sizeof env->ymmh_regs);
|
1297 | f1665b21 | Sheng Yang | return 0; |
1298 | f1665b21 | Sheng Yang | } |
1299 | f1665b21 | Sheng Yang | |
1300 | 1bc22652 | Andreas Fรคrber | static int kvm_get_xcrs(X86CPU *cpu) |
1301 | f1665b21 | Sheng Yang | { |
1302 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1303 | f1665b21 | Sheng Yang | int i, ret;
|
1304 | f1665b21 | Sheng Yang | struct kvm_xcrs xcrs;
|
1305 | f1665b21 | Sheng Yang | |
1306 | b9bec74b | Jan Kiszka | if (!kvm_has_xcrs()) {
|
1307 | f1665b21 | Sheng Yang | return 0; |
1308 | b9bec74b | Jan Kiszka | } |
1309 | f1665b21 | Sheng Yang | |
1310 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_XCRS, &xcrs); |
1311 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1312 | f1665b21 | Sheng Yang | return ret;
|
1313 | b9bec74b | Jan Kiszka | } |
1314 | f1665b21 | Sheng Yang | |
1315 | b9bec74b | Jan Kiszka | for (i = 0; i < xcrs.nr_xcrs; i++) { |
1316 | f1665b21 | Sheng Yang | /* Only support xcr0 now */
|
1317 | 0fd53fec | Paolo Bonzini | if (xcrs.xcrs[i].xcr == 0) { |
1318 | 0fd53fec | Paolo Bonzini | env->xcr0 = xcrs.xcrs[i].value; |
1319 | f1665b21 | Sheng Yang | break;
|
1320 | f1665b21 | Sheng Yang | } |
1321 | b9bec74b | Jan Kiszka | } |
1322 | f1665b21 | Sheng Yang | return 0; |
1323 | f1665b21 | Sheng Yang | } |
1324 | f1665b21 | Sheng Yang | |
1325 | 1bc22652 | Andreas Fรคrber | static int kvm_get_sregs(X86CPU *cpu) |
1326 | 05330448 | aliguori | { |
1327 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1328 | 05330448 | aliguori | struct kvm_sregs sregs;
|
1329 | 05330448 | aliguori | uint32_t hflags; |
1330 | 0e607a80 | Jan Kiszka | int bit, i, ret;
|
1331 | 05330448 | aliguori | |
1332 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_SREGS, &sregs); |
1333 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1334 | 05330448 | aliguori | return ret;
|
1335 | b9bec74b | Jan Kiszka | } |
1336 | 05330448 | aliguori | |
1337 | 0e607a80 | Jan Kiszka | /* There can only be one pending IRQ set in the bitmap at a time, so try
|
1338 | 0e607a80 | Jan Kiszka | to find it and save its number instead (-1 for none). */
|
1339 | 0e607a80 | Jan Kiszka | env->interrupt_injected = -1;
|
1340 | 0e607a80 | Jan Kiszka | for (i = 0; i < ARRAY_SIZE(sregs.interrupt_bitmap); i++) { |
1341 | 0e607a80 | Jan Kiszka | if (sregs.interrupt_bitmap[i]) {
|
1342 | 0e607a80 | Jan Kiszka | bit = ctz64(sregs.interrupt_bitmap[i]); |
1343 | 0e607a80 | Jan Kiszka | env->interrupt_injected = i * 64 + bit;
|
1344 | 0e607a80 | Jan Kiszka | break;
|
1345 | 0e607a80 | Jan Kiszka | } |
1346 | 0e607a80 | Jan Kiszka | } |
1347 | 05330448 | aliguori | |
1348 | 05330448 | aliguori | get_seg(&env->segs[R_CS], &sregs.cs); |
1349 | 05330448 | aliguori | get_seg(&env->segs[R_DS], &sregs.ds); |
1350 | 05330448 | aliguori | get_seg(&env->segs[R_ES], &sregs.es); |
1351 | 05330448 | aliguori | get_seg(&env->segs[R_FS], &sregs.fs); |
1352 | 05330448 | aliguori | get_seg(&env->segs[R_GS], &sregs.gs); |
1353 | 05330448 | aliguori | get_seg(&env->segs[R_SS], &sregs.ss); |
1354 | 05330448 | aliguori | |
1355 | 05330448 | aliguori | get_seg(&env->tr, &sregs.tr); |
1356 | 05330448 | aliguori | get_seg(&env->ldt, &sregs.ldt); |
1357 | 05330448 | aliguori | |
1358 | 05330448 | aliguori | env->idt.limit = sregs.idt.limit; |
1359 | 05330448 | aliguori | env->idt.base = sregs.idt.base; |
1360 | 05330448 | aliguori | env->gdt.limit = sregs.gdt.limit; |
1361 | 05330448 | aliguori | env->gdt.base = sregs.gdt.base; |
1362 | 05330448 | aliguori | |
1363 | 05330448 | aliguori | env->cr[0] = sregs.cr0;
|
1364 | 05330448 | aliguori | env->cr[2] = sregs.cr2;
|
1365 | 05330448 | aliguori | env->cr[3] = sregs.cr3;
|
1366 | 05330448 | aliguori | env->cr[4] = sregs.cr4;
|
1367 | 05330448 | aliguori | |
1368 | 05330448 | aliguori | env->efer = sregs.efer; |
1369 | cce47516 | Jan Kiszka | |
1370 | cce47516 | Jan Kiszka | /* changes to apic base and cr8/tpr are read back via kvm_arch_post_run */
|
1371 | 05330448 | aliguori | |
1372 | b9bec74b | Jan Kiszka | #define HFLAG_COPY_MASK \
|
1373 | b9bec74b | Jan Kiszka | ~( HF_CPL_MASK | HF_PE_MASK | HF_MP_MASK | HF_EM_MASK | \ |
1374 | b9bec74b | Jan Kiszka | HF_TS_MASK | HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK | \ |
1375 | b9bec74b | Jan Kiszka | HF_OSFXSR_MASK | HF_LMA_MASK | HF_CS32_MASK | \ |
1376 | b9bec74b | Jan Kiszka | HF_SS32_MASK | HF_CS64_MASK | HF_ADDSEG_MASK) |
1377 | 05330448 | aliguori | |
1378 | 05330448 | aliguori | hflags = (env->segs[R_CS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK; |
1379 | 05330448 | aliguori | hflags |= (env->cr[0] & CR0_PE_MASK) << (HF_PE_SHIFT - CR0_PE_SHIFT);
|
1380 | 05330448 | aliguori | hflags |= (env->cr[0] << (HF_MP_SHIFT - CR0_MP_SHIFT)) &
|
1381 | b9bec74b | Jan Kiszka | (HF_MP_MASK | HF_EM_MASK | HF_TS_MASK); |
1382 | 05330448 | aliguori | hflags |= (env->eflags & (HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK)); |
1383 | 05330448 | aliguori | hflags |= (env->cr[4] & CR4_OSFXSR_MASK) <<
|
1384 | b9bec74b | Jan Kiszka | (HF_OSFXSR_SHIFT - CR4_OSFXSR_SHIFT); |
1385 | 05330448 | aliguori | |
1386 | 05330448 | aliguori | if (env->efer & MSR_EFER_LMA) {
|
1387 | 05330448 | aliguori | hflags |= HF_LMA_MASK; |
1388 | 05330448 | aliguori | } |
1389 | 05330448 | aliguori | |
1390 | 05330448 | aliguori | if ((hflags & HF_LMA_MASK) && (env->segs[R_CS].flags & DESC_L_MASK)) {
|
1391 | 05330448 | aliguori | hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK; |
1392 | 05330448 | aliguori | } else {
|
1393 | 05330448 | aliguori | hflags |= (env->segs[R_CS].flags & DESC_B_MASK) >> |
1394 | b9bec74b | Jan Kiszka | (DESC_B_SHIFT - HF_CS32_SHIFT); |
1395 | 05330448 | aliguori | hflags |= (env->segs[R_SS].flags & DESC_B_MASK) >> |
1396 | b9bec74b | Jan Kiszka | (DESC_B_SHIFT - HF_SS32_SHIFT); |
1397 | b9bec74b | Jan Kiszka | if (!(env->cr[0] & CR0_PE_MASK) || (env->eflags & VM_MASK) || |
1398 | b9bec74b | Jan Kiszka | !(hflags & HF_CS32_MASK)) { |
1399 | b9bec74b | Jan Kiszka | hflags |= HF_ADDSEG_MASK; |
1400 | b9bec74b | Jan Kiszka | } else {
|
1401 | b9bec74b | Jan Kiszka | hflags |= ((env->segs[R_DS].base | env->segs[R_ES].base | |
1402 | b9bec74b | Jan Kiszka | env->segs[R_SS].base) != 0) << HF_ADDSEG_SHIFT;
|
1403 | b9bec74b | Jan Kiszka | } |
1404 | 05330448 | aliguori | } |
1405 | 05330448 | aliguori | env->hflags = (env->hflags & HFLAG_COPY_MASK) | hflags; |
1406 | 05330448 | aliguori | |
1407 | 05330448 | aliguori | return 0; |
1408 | 05330448 | aliguori | } |
1409 | 05330448 | aliguori | |
1410 | 1bc22652 | Andreas Fรคrber | static int kvm_get_msrs(X86CPU *cpu) |
1411 | 05330448 | aliguori | { |
1412 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1413 | 05330448 | aliguori | struct {
|
1414 | 05330448 | aliguori | struct kvm_msrs info;
|
1415 | 05330448 | aliguori | struct kvm_msr_entry entries[100]; |
1416 | 05330448 | aliguori | } msr_data; |
1417 | 05330448 | aliguori | struct kvm_msr_entry *msrs = msr_data.entries;
|
1418 | 05330448 | aliguori | int ret, i, n;
|
1419 | 05330448 | aliguori | |
1420 | 05330448 | aliguori | n = 0;
|
1421 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_CS; |
1422 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_ESP; |
1423 | 05330448 | aliguori | msrs[n++].index = MSR_IA32_SYSENTER_EIP; |
1424 | 0c03266a | Jan Kiszka | msrs[n++].index = MSR_PAT; |
1425 | c3a3a7d3 | Jan Kiszka | if (has_msr_star) {
|
1426 | b9bec74b | Jan Kiszka | msrs[n++].index = MSR_STAR; |
1427 | b9bec74b | Jan Kiszka | } |
1428 | c3a3a7d3 | Jan Kiszka | if (has_msr_hsave_pa) {
|
1429 | 75b10c43 | Marcelo Tosatti | msrs[n++].index = MSR_VM_HSAVE_PA; |
1430 | b9bec74b | Jan Kiszka | } |
1431 | f28558d3 | Will Auld | if (has_msr_tsc_adjust) {
|
1432 | f28558d3 | Will Auld | msrs[n++].index = MSR_TSC_ADJUST; |
1433 | f28558d3 | Will Auld | } |
1434 | aa82ba54 | Liu, Jinsong | if (has_msr_tsc_deadline) {
|
1435 | aa82ba54 | Liu, Jinsong | msrs[n++].index = MSR_IA32_TSCDEADLINE; |
1436 | aa82ba54 | Liu, Jinsong | } |
1437 | 21e87c46 | Avi Kivity | if (has_msr_misc_enable) {
|
1438 | 21e87c46 | Avi Kivity | msrs[n++].index = MSR_IA32_MISC_ENABLE; |
1439 | 21e87c46 | Avi Kivity | } |
1440 | df67696e | Liu Jinsong | if (has_msr_feature_control) {
|
1441 | df67696e | Liu Jinsong | msrs[n++].index = MSR_IA32_FEATURE_CONTROL; |
1442 | df67696e | Liu Jinsong | } |
1443 | b8cc45d6 | Glauber Costa | |
1444 | b8cc45d6 | Glauber Costa | if (!env->tsc_valid) {
|
1445 | b8cc45d6 | Glauber Costa | msrs[n++].index = MSR_IA32_TSC; |
1446 | 1354869c | Luiz Capitulino | env->tsc_valid = !runstate_is_running(); |
1447 | b8cc45d6 | Glauber Costa | } |
1448 | b8cc45d6 | Glauber Costa | |
1449 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
1450 | 25d2e361 | Marcelo Tosatti | if (lm_capable_kernel) {
|
1451 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_CSTAR; |
1452 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_KERNELGSBASE; |
1453 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_FMASK; |
1454 | 25d2e361 | Marcelo Tosatti | msrs[n++].index = MSR_LSTAR; |
1455 | 25d2e361 | Marcelo Tosatti | } |
1456 | 05330448 | aliguori | #endif
|
1457 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_SYSTEM_TIME; |
1458 | 1a03675d | Glauber Costa | msrs[n++].index = MSR_KVM_WALL_CLOCK; |
1459 | c5999bfc | Jan Kiszka | if (has_msr_async_pf_en) {
|
1460 | c5999bfc | Jan Kiszka | msrs[n++].index = MSR_KVM_ASYNC_PF_EN; |
1461 | c5999bfc | Jan Kiszka | } |
1462 | bc9a839d | Michael S. Tsirkin | if (has_msr_pv_eoi_en) {
|
1463 | bc9a839d | Michael S. Tsirkin | msrs[n++].index = MSR_KVM_PV_EOI_EN; |
1464 | bc9a839d | Michael S. Tsirkin | } |
1465 | 917367aa | Marcelo Tosatti | if (has_msr_kvm_steal_time) {
|
1466 | 917367aa | Marcelo Tosatti | msrs[n++].index = MSR_KVM_STEAL_TIME; |
1467 | 917367aa | Marcelo Tosatti | } |
1468 | 0d894367 | Paolo Bonzini | if (has_msr_architectural_pmu) {
|
1469 | 0d894367 | Paolo Bonzini | msrs[n++].index = MSR_CORE_PERF_FIXED_CTR_CTRL; |
1470 | 0d894367 | Paolo Bonzini | msrs[n++].index = MSR_CORE_PERF_GLOBAL_CTRL; |
1471 | 0d894367 | Paolo Bonzini | msrs[n++].index = MSR_CORE_PERF_GLOBAL_STATUS; |
1472 | 0d894367 | Paolo Bonzini | msrs[n++].index = MSR_CORE_PERF_GLOBAL_OVF_CTRL; |
1473 | 0d894367 | Paolo Bonzini | for (i = 0; i < MAX_FIXED_COUNTERS; i++) { |
1474 | 0d894367 | Paolo Bonzini | msrs[n++].index = MSR_CORE_PERF_FIXED_CTR0 + i; |
1475 | 0d894367 | Paolo Bonzini | } |
1476 | 0d894367 | Paolo Bonzini | for (i = 0; i < num_architectural_pmu_counters; i++) { |
1477 | 0d894367 | Paolo Bonzini | msrs[n++].index = MSR_P6_PERFCTR0 + i; |
1478 | 0d894367 | Paolo Bonzini | msrs[n++].index = MSR_P6_EVNTSEL0 + i; |
1479 | 0d894367 | Paolo Bonzini | } |
1480 | 0d894367 | Paolo Bonzini | } |
1481 | 1a03675d | Glauber Costa | |
1482 | 57780495 | Marcelo Tosatti | if (env->mcg_cap) {
|
1483 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MCG_STATUS; |
1484 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MCG_CTL; |
1485 | b9bec74b | Jan Kiszka | for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) { |
1486 | 57780495 | Marcelo Tosatti | msrs[n++].index = MSR_MC0_CTL + i; |
1487 | b9bec74b | Jan Kiszka | } |
1488 | 57780495 | Marcelo Tosatti | } |
1489 | 57780495 | Marcelo Tosatti | |
1490 | 05330448 | aliguori | msr_data.info.nmsrs = n; |
1491 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_MSRS, &msr_data); |
1492 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1493 | 05330448 | aliguori | return ret;
|
1494 | b9bec74b | Jan Kiszka | } |
1495 | 05330448 | aliguori | |
1496 | 05330448 | aliguori | for (i = 0; i < ret; i++) { |
1497 | 0d894367 | Paolo Bonzini | uint32_t index = msrs[i].index; |
1498 | 0d894367 | Paolo Bonzini | switch (index) {
|
1499 | 05330448 | aliguori | case MSR_IA32_SYSENTER_CS:
|
1500 | 05330448 | aliguori | env->sysenter_cs = msrs[i].data; |
1501 | 05330448 | aliguori | break;
|
1502 | 05330448 | aliguori | case MSR_IA32_SYSENTER_ESP:
|
1503 | 05330448 | aliguori | env->sysenter_esp = msrs[i].data; |
1504 | 05330448 | aliguori | break;
|
1505 | 05330448 | aliguori | case MSR_IA32_SYSENTER_EIP:
|
1506 | 05330448 | aliguori | env->sysenter_eip = msrs[i].data; |
1507 | 05330448 | aliguori | break;
|
1508 | 0c03266a | Jan Kiszka | case MSR_PAT:
|
1509 | 0c03266a | Jan Kiszka | env->pat = msrs[i].data; |
1510 | 0c03266a | Jan Kiszka | break;
|
1511 | 05330448 | aliguori | case MSR_STAR:
|
1512 | 05330448 | aliguori | env->star = msrs[i].data; |
1513 | 05330448 | aliguori | break;
|
1514 | 05330448 | aliguori | #ifdef TARGET_X86_64
|
1515 | 05330448 | aliguori | case MSR_CSTAR:
|
1516 | 05330448 | aliguori | env->cstar = msrs[i].data; |
1517 | 05330448 | aliguori | break;
|
1518 | 05330448 | aliguori | case MSR_KERNELGSBASE:
|
1519 | 05330448 | aliguori | env->kernelgsbase = msrs[i].data; |
1520 | 05330448 | aliguori | break;
|
1521 | 05330448 | aliguori | case MSR_FMASK:
|
1522 | 05330448 | aliguori | env->fmask = msrs[i].data; |
1523 | 05330448 | aliguori | break;
|
1524 | 05330448 | aliguori | case MSR_LSTAR:
|
1525 | 05330448 | aliguori | env->lstar = msrs[i].data; |
1526 | 05330448 | aliguori | break;
|
1527 | 05330448 | aliguori | #endif
|
1528 | 05330448 | aliguori | case MSR_IA32_TSC:
|
1529 | 05330448 | aliguori | env->tsc = msrs[i].data; |
1530 | 05330448 | aliguori | break;
|
1531 | f28558d3 | Will Auld | case MSR_TSC_ADJUST:
|
1532 | f28558d3 | Will Auld | env->tsc_adjust = msrs[i].data; |
1533 | f28558d3 | Will Auld | break;
|
1534 | aa82ba54 | Liu, Jinsong | case MSR_IA32_TSCDEADLINE:
|
1535 | aa82ba54 | Liu, Jinsong | env->tsc_deadline = msrs[i].data; |
1536 | aa82ba54 | Liu, Jinsong | break;
|
1537 | aa851e36 | Marcelo Tosatti | case MSR_VM_HSAVE_PA:
|
1538 | aa851e36 | Marcelo Tosatti | env->vm_hsave = msrs[i].data; |
1539 | aa851e36 | Marcelo Tosatti | break;
|
1540 | 1a03675d | Glauber Costa | case MSR_KVM_SYSTEM_TIME:
|
1541 | 1a03675d | Glauber Costa | env->system_time_msr = msrs[i].data; |
1542 | 1a03675d | Glauber Costa | break;
|
1543 | 1a03675d | Glauber Costa | case MSR_KVM_WALL_CLOCK:
|
1544 | 1a03675d | Glauber Costa | env->wall_clock_msr = msrs[i].data; |
1545 | 1a03675d | Glauber Costa | break;
|
1546 | 57780495 | Marcelo Tosatti | case MSR_MCG_STATUS:
|
1547 | 57780495 | Marcelo Tosatti | env->mcg_status = msrs[i].data; |
1548 | 57780495 | Marcelo Tosatti | break;
|
1549 | 57780495 | Marcelo Tosatti | case MSR_MCG_CTL:
|
1550 | 57780495 | Marcelo Tosatti | env->mcg_ctl = msrs[i].data; |
1551 | 57780495 | Marcelo Tosatti | break;
|
1552 | 21e87c46 | Avi Kivity | case MSR_IA32_MISC_ENABLE:
|
1553 | 21e87c46 | Avi Kivity | env->msr_ia32_misc_enable = msrs[i].data; |
1554 | 21e87c46 | Avi Kivity | break;
|
1555 | 0779caeb | Arthur Chunqi Li | case MSR_IA32_FEATURE_CONTROL:
|
1556 | 0779caeb | Arthur Chunqi Li | env->msr_ia32_feature_control = msrs[i].data; |
1557 | df67696e | Liu Jinsong | break;
|
1558 | 57780495 | Marcelo Tosatti | default:
|
1559 | 57780495 | Marcelo Tosatti | if (msrs[i].index >= MSR_MC0_CTL &&
|
1560 | 57780495 | Marcelo Tosatti | msrs[i].index < MSR_MC0_CTL + (env->mcg_cap & 0xff) * 4) { |
1561 | 57780495 | Marcelo Tosatti | env->mce_banks[msrs[i].index - MSR_MC0_CTL] = msrs[i].data; |
1562 | 57780495 | Marcelo Tosatti | } |
1563 | d8da8574 | Hidetoshi Seto | break;
|
1564 | f6584ee2 | Gleb Natapov | case MSR_KVM_ASYNC_PF_EN:
|
1565 | f6584ee2 | Gleb Natapov | env->async_pf_en_msr = msrs[i].data; |
1566 | f6584ee2 | Gleb Natapov | break;
|
1567 | bc9a839d | Michael S. Tsirkin | case MSR_KVM_PV_EOI_EN:
|
1568 | bc9a839d | Michael S. Tsirkin | env->pv_eoi_en_msr = msrs[i].data; |
1569 | bc9a839d | Michael S. Tsirkin | break;
|
1570 | 917367aa | Marcelo Tosatti | case MSR_KVM_STEAL_TIME:
|
1571 | 917367aa | Marcelo Tosatti | env->steal_time_msr = msrs[i].data; |
1572 | 917367aa | Marcelo Tosatti | break;
|
1573 | 0d894367 | Paolo Bonzini | case MSR_CORE_PERF_FIXED_CTR_CTRL:
|
1574 | 0d894367 | Paolo Bonzini | env->msr_fixed_ctr_ctrl = msrs[i].data; |
1575 | 0d894367 | Paolo Bonzini | break;
|
1576 | 0d894367 | Paolo Bonzini | case MSR_CORE_PERF_GLOBAL_CTRL:
|
1577 | 0d894367 | Paolo Bonzini | env->msr_global_ctrl = msrs[i].data; |
1578 | 0d894367 | Paolo Bonzini | break;
|
1579 | 0d894367 | Paolo Bonzini | case MSR_CORE_PERF_GLOBAL_STATUS:
|
1580 | 0d894367 | Paolo Bonzini | env->msr_global_status = msrs[i].data; |
1581 | 0d894367 | Paolo Bonzini | break;
|
1582 | 0d894367 | Paolo Bonzini | case MSR_CORE_PERF_GLOBAL_OVF_CTRL:
|
1583 | 0d894367 | Paolo Bonzini | env->msr_global_ovf_ctrl = msrs[i].data; |
1584 | 0d894367 | Paolo Bonzini | break;
|
1585 | 0d894367 | Paolo Bonzini | case MSR_CORE_PERF_FIXED_CTR0 ... MSR_CORE_PERF_FIXED_CTR0 + MAX_FIXED_COUNTERS - 1: |
1586 | 0d894367 | Paolo Bonzini | env->msr_fixed_counters[index - MSR_CORE_PERF_FIXED_CTR0] = msrs[i].data; |
1587 | 0d894367 | Paolo Bonzini | break;
|
1588 | 0d894367 | Paolo Bonzini | case MSR_P6_PERFCTR0 ... MSR_P6_PERFCTR0 + MAX_GP_COUNTERS - 1: |
1589 | 0d894367 | Paolo Bonzini | env->msr_gp_counters[index - MSR_P6_PERFCTR0] = msrs[i].data; |
1590 | 0d894367 | Paolo Bonzini | break;
|
1591 | 0d894367 | Paolo Bonzini | case MSR_P6_EVNTSEL0 ... MSR_P6_EVNTSEL0 + MAX_GP_COUNTERS - 1: |
1592 | 0d894367 | Paolo Bonzini | env->msr_gp_evtsel[index - MSR_P6_EVNTSEL0] = msrs[i].data; |
1593 | 0d894367 | Paolo Bonzini | break;
|
1594 | 05330448 | aliguori | } |
1595 | 05330448 | aliguori | } |
1596 | 05330448 | aliguori | |
1597 | 05330448 | aliguori | return 0; |
1598 | 05330448 | aliguori | } |
1599 | 05330448 | aliguori | |
1600 | 1bc22652 | Andreas Fรคrber | static int kvm_put_mp_state(X86CPU *cpu) |
1601 | 9bdbe550 | Hollis Blanchard | { |
1602 | 1bc22652 | Andreas Fรคrber | struct kvm_mp_state mp_state = { .mp_state = cpu->env.mp_state };
|
1603 | 9bdbe550 | Hollis Blanchard | |
1604 | 1bc22652 | Andreas Fรคrber | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MP_STATE, &mp_state);
|
1605 | 9bdbe550 | Hollis Blanchard | } |
1606 | 9bdbe550 | Hollis Blanchard | |
1607 | 23d02d9b | Andreas Fรคrber | static int kvm_get_mp_state(X86CPU *cpu) |
1608 | 9bdbe550 | Hollis Blanchard | { |
1609 | 259186a7 | Andreas Fรคrber | CPUState *cs = CPU(cpu); |
1610 | 23d02d9b | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1611 | 9bdbe550 | Hollis Blanchard | struct kvm_mp_state mp_state;
|
1612 | 9bdbe550 | Hollis Blanchard | int ret;
|
1613 | 9bdbe550 | Hollis Blanchard | |
1614 | 259186a7 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(cs, KVM_GET_MP_STATE, &mp_state); |
1615 | 9bdbe550 | Hollis Blanchard | if (ret < 0) { |
1616 | 9bdbe550 | Hollis Blanchard | return ret;
|
1617 | 9bdbe550 | Hollis Blanchard | } |
1618 | 9bdbe550 | Hollis Blanchard | env->mp_state = mp_state.mp_state; |
1619 | c14750e8 | Jan Kiszka | if (kvm_irqchip_in_kernel()) {
|
1620 | 259186a7 | Andreas Fรคrber | cs->halted = (mp_state.mp_state == KVM_MP_STATE_HALTED); |
1621 | c14750e8 | Jan Kiszka | } |
1622 | 9bdbe550 | Hollis Blanchard | return 0; |
1623 | 9bdbe550 | Hollis Blanchard | } |
1624 | 9bdbe550 | Hollis Blanchard | |
1625 | 1bc22652 | Andreas Fรคrber | static int kvm_get_apic(X86CPU *cpu) |
1626 | 680c1c6f | Jan Kiszka | { |
1627 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1628 | 680c1c6f | Jan Kiszka | DeviceState *apic = env->apic_state; |
1629 | 680c1c6f | Jan Kiszka | struct kvm_lapic_state kapic;
|
1630 | 680c1c6f | Jan Kiszka | int ret;
|
1631 | 680c1c6f | Jan Kiszka | |
1632 | 3d4b2649 | Jan Kiszka | if (apic && kvm_irqchip_in_kernel()) {
|
1633 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_LAPIC, &kapic); |
1634 | 680c1c6f | Jan Kiszka | if (ret < 0) { |
1635 | 680c1c6f | Jan Kiszka | return ret;
|
1636 | 680c1c6f | Jan Kiszka | } |
1637 | 680c1c6f | Jan Kiszka | |
1638 | 680c1c6f | Jan Kiszka | kvm_get_apic_state(apic, &kapic); |
1639 | 680c1c6f | Jan Kiszka | } |
1640 | 680c1c6f | Jan Kiszka | return 0; |
1641 | 680c1c6f | Jan Kiszka | } |
1642 | 680c1c6f | Jan Kiszka | |
1643 | 1bc22652 | Andreas Fรคrber | static int kvm_put_apic(X86CPU *cpu) |
1644 | 680c1c6f | Jan Kiszka | { |
1645 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1646 | 680c1c6f | Jan Kiszka | DeviceState *apic = env->apic_state; |
1647 | 680c1c6f | Jan Kiszka | struct kvm_lapic_state kapic;
|
1648 | 680c1c6f | Jan Kiszka | |
1649 | 3d4b2649 | Jan Kiszka | if (apic && kvm_irqchip_in_kernel()) {
|
1650 | 680c1c6f | Jan Kiszka | kvm_put_apic_state(apic, &kapic); |
1651 | 680c1c6f | Jan Kiszka | |
1652 | 1bc22652 | Andreas Fรคrber | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_LAPIC, &kapic);
|
1653 | 680c1c6f | Jan Kiszka | } |
1654 | 680c1c6f | Jan Kiszka | return 0; |
1655 | 680c1c6f | Jan Kiszka | } |
1656 | 680c1c6f | Jan Kiszka | |
1657 | 1bc22652 | Andreas Fรคrber | static int kvm_put_vcpu_events(X86CPU *cpu, int level) |
1658 | a0fb002c | Jan Kiszka | { |
1659 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1660 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1661 | a0fb002c | Jan Kiszka | |
1662 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1663 | a0fb002c | Jan Kiszka | return 0; |
1664 | a0fb002c | Jan Kiszka | } |
1665 | a0fb002c | Jan Kiszka | |
1666 | 31827373 | Jan Kiszka | events.exception.injected = (env->exception_injected >= 0);
|
1667 | 31827373 | Jan Kiszka | events.exception.nr = env->exception_injected; |
1668 | a0fb002c | Jan Kiszka | events.exception.has_error_code = env->has_error_code; |
1669 | a0fb002c | Jan Kiszka | events.exception.error_code = env->error_code; |
1670 | 7e680753 | Michael S. Tsirkin | events.exception.pad = 0;
|
1671 | a0fb002c | Jan Kiszka | |
1672 | a0fb002c | Jan Kiszka | events.interrupt.injected = (env->interrupt_injected >= 0);
|
1673 | a0fb002c | Jan Kiszka | events.interrupt.nr = env->interrupt_injected; |
1674 | a0fb002c | Jan Kiszka | events.interrupt.soft = env->soft_interrupt; |
1675 | a0fb002c | Jan Kiszka | |
1676 | a0fb002c | Jan Kiszka | events.nmi.injected = env->nmi_injected; |
1677 | a0fb002c | Jan Kiszka | events.nmi.pending = env->nmi_pending; |
1678 | a0fb002c | Jan Kiszka | events.nmi.masked = !!(env->hflags2 & HF2_NMI_MASK); |
1679 | 7e680753 | Michael S. Tsirkin | events.nmi.pad = 0;
|
1680 | a0fb002c | Jan Kiszka | |
1681 | a0fb002c | Jan Kiszka | events.sipi_vector = env->sipi_vector; |
1682 | a0fb002c | Jan Kiszka | |
1683 | ea643051 | Jan Kiszka | events.flags = 0;
|
1684 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1685 | ea643051 | Jan Kiszka | events.flags |= |
1686 | ea643051 | Jan Kiszka | KVM_VCPUEVENT_VALID_NMI_PENDING | KVM_VCPUEVENT_VALID_SIPI_VECTOR; |
1687 | ea643051 | Jan Kiszka | } |
1688 | aee028b9 | Jan Kiszka | |
1689 | 1bc22652 | Andreas Fรคrber | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_VCPU_EVENTS, &events);
|
1690 | a0fb002c | Jan Kiszka | } |
1691 | a0fb002c | Jan Kiszka | |
1692 | 1bc22652 | Andreas Fรคrber | static int kvm_get_vcpu_events(X86CPU *cpu) |
1693 | a0fb002c | Jan Kiszka | { |
1694 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1695 | a0fb002c | Jan Kiszka | struct kvm_vcpu_events events;
|
1696 | a0fb002c | Jan Kiszka | int ret;
|
1697 | a0fb002c | Jan Kiszka | |
1698 | a0fb002c | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1699 | a0fb002c | Jan Kiszka | return 0; |
1700 | a0fb002c | Jan Kiszka | } |
1701 | a0fb002c | Jan Kiszka | |
1702 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_VCPU_EVENTS, &events); |
1703 | a0fb002c | Jan Kiszka | if (ret < 0) { |
1704 | a0fb002c | Jan Kiszka | return ret;
|
1705 | a0fb002c | Jan Kiszka | } |
1706 | 31827373 | Jan Kiszka | env->exception_injected = |
1707 | a0fb002c | Jan Kiszka | events.exception.injected ? events.exception.nr : -1;
|
1708 | a0fb002c | Jan Kiszka | env->has_error_code = events.exception.has_error_code; |
1709 | a0fb002c | Jan Kiszka | env->error_code = events.exception.error_code; |
1710 | a0fb002c | Jan Kiszka | |
1711 | a0fb002c | Jan Kiszka | env->interrupt_injected = |
1712 | a0fb002c | Jan Kiszka | events.interrupt.injected ? events.interrupt.nr : -1;
|
1713 | a0fb002c | Jan Kiszka | env->soft_interrupt = events.interrupt.soft; |
1714 | a0fb002c | Jan Kiszka | |
1715 | a0fb002c | Jan Kiszka | env->nmi_injected = events.nmi.injected; |
1716 | a0fb002c | Jan Kiszka | env->nmi_pending = events.nmi.pending; |
1717 | a0fb002c | Jan Kiszka | if (events.nmi.masked) {
|
1718 | a0fb002c | Jan Kiszka | env->hflags2 |= HF2_NMI_MASK; |
1719 | a0fb002c | Jan Kiszka | } else {
|
1720 | a0fb002c | Jan Kiszka | env->hflags2 &= ~HF2_NMI_MASK; |
1721 | a0fb002c | Jan Kiszka | } |
1722 | a0fb002c | Jan Kiszka | |
1723 | a0fb002c | Jan Kiszka | env->sipi_vector = events.sipi_vector; |
1724 | a0fb002c | Jan Kiszka | |
1725 | a0fb002c | Jan Kiszka | return 0; |
1726 | a0fb002c | Jan Kiszka | } |
1727 | a0fb002c | Jan Kiszka | |
1728 | 1bc22652 | Andreas Fรคrber | static int kvm_guest_debug_workarounds(X86CPU *cpu) |
1729 | b0b1d690 | Jan Kiszka | { |
1730 | ed2803da | Andreas Fรคrber | CPUState *cs = CPU(cpu); |
1731 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1732 | b0b1d690 | Jan Kiszka | int ret = 0; |
1733 | b0b1d690 | Jan Kiszka | unsigned long reinject_trap = 0; |
1734 | b0b1d690 | Jan Kiszka | |
1735 | b0b1d690 | Jan Kiszka | if (!kvm_has_vcpu_events()) {
|
1736 | b0b1d690 | Jan Kiszka | if (env->exception_injected == 1) { |
1737 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_DB; |
1738 | b0b1d690 | Jan Kiszka | } else if (env->exception_injected == 3) { |
1739 | b0b1d690 | Jan Kiszka | reinject_trap = KVM_GUESTDBG_INJECT_BP; |
1740 | b0b1d690 | Jan Kiszka | } |
1741 | b0b1d690 | Jan Kiszka | env->exception_injected = -1;
|
1742 | b0b1d690 | Jan Kiszka | } |
1743 | b0b1d690 | Jan Kiszka | |
1744 | b0b1d690 | Jan Kiszka | /*
|
1745 | b0b1d690 | Jan Kiszka | * Kernels before KVM_CAP_X86_ROBUST_SINGLESTEP overwrote flags.TF
|
1746 | b0b1d690 | Jan Kiszka | * injected via SET_GUEST_DEBUG while updating GP regs. Work around this
|
1747 | b0b1d690 | Jan Kiszka | * by updating the debug state once again if single-stepping is on.
|
1748 | b0b1d690 | Jan Kiszka | * Another reason to call kvm_update_guest_debug here is a pending debug
|
1749 | b0b1d690 | Jan Kiszka | * trap raise by the guest. On kernels without SET_VCPU_EVENTS we have to
|
1750 | b0b1d690 | Jan Kiszka | * reinject them via SET_GUEST_DEBUG.
|
1751 | b0b1d690 | Jan Kiszka | */
|
1752 | b0b1d690 | Jan Kiszka | if (reinject_trap ||
|
1753 | ed2803da | Andreas Fรคrber | (!kvm_has_robust_singlestep() && cs->singlestep_enabled)) { |
1754 | 38e478ec | Stefan Weil | ret = kvm_update_guest_debug(cs, reinject_trap); |
1755 | b0b1d690 | Jan Kiszka | } |
1756 | b0b1d690 | Jan Kiszka | return ret;
|
1757 | b0b1d690 | Jan Kiszka | } |
1758 | b0b1d690 | Jan Kiszka | |
1759 | 1bc22652 | Andreas Fรคrber | static int kvm_put_debugregs(X86CPU *cpu) |
1760 | ff44f1a3 | Jan Kiszka | { |
1761 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1762 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1763 | ff44f1a3 | Jan Kiszka | int i;
|
1764 | ff44f1a3 | Jan Kiszka | |
1765 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1766 | ff44f1a3 | Jan Kiszka | return 0; |
1767 | ff44f1a3 | Jan Kiszka | } |
1768 | ff44f1a3 | Jan Kiszka | |
1769 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1770 | ff44f1a3 | Jan Kiszka | dbgregs.db[i] = env->dr[i]; |
1771 | ff44f1a3 | Jan Kiszka | } |
1772 | ff44f1a3 | Jan Kiszka | dbgregs.dr6 = env->dr[6];
|
1773 | ff44f1a3 | Jan Kiszka | dbgregs.dr7 = env->dr[7];
|
1774 | ff44f1a3 | Jan Kiszka | dbgregs.flags = 0;
|
1775 | ff44f1a3 | Jan Kiszka | |
1776 | 1bc22652 | Andreas Fรคrber | return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_DEBUGREGS, &dbgregs);
|
1777 | ff44f1a3 | Jan Kiszka | } |
1778 | ff44f1a3 | Jan Kiszka | |
1779 | 1bc22652 | Andreas Fรคrber | static int kvm_get_debugregs(X86CPU *cpu) |
1780 | ff44f1a3 | Jan Kiszka | { |
1781 | 1bc22652 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1782 | ff44f1a3 | Jan Kiszka | struct kvm_debugregs dbgregs;
|
1783 | ff44f1a3 | Jan Kiszka | int i, ret;
|
1784 | ff44f1a3 | Jan Kiszka | |
1785 | ff44f1a3 | Jan Kiszka | if (!kvm_has_debugregs()) {
|
1786 | ff44f1a3 | Jan Kiszka | return 0; |
1787 | ff44f1a3 | Jan Kiszka | } |
1788 | ff44f1a3 | Jan Kiszka | |
1789 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_DEBUGREGS, &dbgregs); |
1790 | ff44f1a3 | Jan Kiszka | if (ret < 0) { |
1791 | b9bec74b | Jan Kiszka | return ret;
|
1792 | ff44f1a3 | Jan Kiszka | } |
1793 | ff44f1a3 | Jan Kiszka | for (i = 0; i < 4; i++) { |
1794 | ff44f1a3 | Jan Kiszka | env->dr[i] = dbgregs.db[i]; |
1795 | ff44f1a3 | Jan Kiszka | } |
1796 | ff44f1a3 | Jan Kiszka | env->dr[4] = env->dr[6] = dbgregs.dr6; |
1797 | ff44f1a3 | Jan Kiszka | env->dr[5] = env->dr[7] = dbgregs.dr7; |
1798 | ff44f1a3 | Jan Kiszka | |
1799 | ff44f1a3 | Jan Kiszka | return 0; |
1800 | ff44f1a3 | Jan Kiszka | } |
1801 | ff44f1a3 | Jan Kiszka | |
1802 | 20d695a9 | Andreas Fรคrber | int kvm_arch_put_registers(CPUState *cpu, int level) |
1803 | 05330448 | aliguori | { |
1804 | 20d695a9 | Andreas Fรคrber | X86CPU *x86_cpu = X86_CPU(cpu); |
1805 | 05330448 | aliguori | int ret;
|
1806 | 05330448 | aliguori | |
1807 | 2fa45344 | Andreas Fรคrber | assert(cpu_is_stopped(cpu) || qemu_cpu_is_self(cpu)); |
1808 | dbaa07c4 | Jan Kiszka | |
1809 | 1bc22652 | Andreas Fรคrber | ret = kvm_getput_regs(x86_cpu, 1);
|
1810 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1811 | 05330448 | aliguori | return ret;
|
1812 | b9bec74b | Jan Kiszka | } |
1813 | 1bc22652 | Andreas Fรคrber | ret = kvm_put_xsave(x86_cpu); |
1814 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1815 | f1665b21 | Sheng Yang | return ret;
|
1816 | b9bec74b | Jan Kiszka | } |
1817 | 1bc22652 | Andreas Fรคrber | ret = kvm_put_xcrs(x86_cpu); |
1818 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1819 | 05330448 | aliguori | return ret;
|
1820 | b9bec74b | Jan Kiszka | } |
1821 | 1bc22652 | Andreas Fรคrber | ret = kvm_put_sregs(x86_cpu); |
1822 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1823 | 05330448 | aliguori | return ret;
|
1824 | b9bec74b | Jan Kiszka | } |
1825 | ab443475 | Jan Kiszka | /* must be before kvm_put_msrs */
|
1826 | 1bc22652 | Andreas Fรคrber | ret = kvm_inject_mce_oldstyle(x86_cpu); |
1827 | ab443475 | Jan Kiszka | if (ret < 0) { |
1828 | ab443475 | Jan Kiszka | return ret;
|
1829 | ab443475 | Jan Kiszka | } |
1830 | 1bc22652 | Andreas Fรคrber | ret = kvm_put_msrs(x86_cpu, level); |
1831 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1832 | 05330448 | aliguori | return ret;
|
1833 | b9bec74b | Jan Kiszka | } |
1834 | ea643051 | Jan Kiszka | if (level >= KVM_PUT_RESET_STATE) {
|
1835 | 1bc22652 | Andreas Fรคrber | ret = kvm_put_mp_state(x86_cpu); |
1836 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1837 | ea643051 | Jan Kiszka | return ret;
|
1838 | b9bec74b | Jan Kiszka | } |
1839 | 1bc22652 | Andreas Fรคrber | ret = kvm_put_apic(x86_cpu); |
1840 | 680c1c6f | Jan Kiszka | if (ret < 0) { |
1841 | 680c1c6f | Jan Kiszka | return ret;
|
1842 | 680c1c6f | Jan Kiszka | } |
1843 | ea643051 | Jan Kiszka | } |
1844 | 7477cd38 | Marcelo Tosatti | |
1845 | 7477cd38 | Marcelo Tosatti | ret = kvm_put_tscdeadline_msr(x86_cpu); |
1846 | 7477cd38 | Marcelo Tosatti | if (ret < 0) { |
1847 | 7477cd38 | Marcelo Tosatti | return ret;
|
1848 | 7477cd38 | Marcelo Tosatti | } |
1849 | 7477cd38 | Marcelo Tosatti | |
1850 | 1bc22652 | Andreas Fรคrber | ret = kvm_put_vcpu_events(x86_cpu, level); |
1851 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1852 | a0fb002c | Jan Kiszka | return ret;
|
1853 | b9bec74b | Jan Kiszka | } |
1854 | 1bc22652 | Andreas Fรคrber | ret = kvm_put_debugregs(x86_cpu); |
1855 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1856 | b0b1d690 | Jan Kiszka | return ret;
|
1857 | b9bec74b | Jan Kiszka | } |
1858 | b0b1d690 | Jan Kiszka | /* must be last */
|
1859 | 1bc22652 | Andreas Fรคrber | ret = kvm_guest_debug_workarounds(x86_cpu); |
1860 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1861 | ff44f1a3 | Jan Kiszka | return ret;
|
1862 | b9bec74b | Jan Kiszka | } |
1863 | 05330448 | aliguori | return 0; |
1864 | 05330448 | aliguori | } |
1865 | 05330448 | aliguori | |
1866 | 20d695a9 | Andreas Fรคrber | int kvm_arch_get_registers(CPUState *cs)
|
1867 | 05330448 | aliguori | { |
1868 | 20d695a9 | Andreas Fรคrber | X86CPU *cpu = X86_CPU(cs); |
1869 | 05330448 | aliguori | int ret;
|
1870 | 05330448 | aliguori | |
1871 | 20d695a9 | Andreas Fรคrber | assert(cpu_is_stopped(cs) || qemu_cpu_is_self(cs)); |
1872 | dbaa07c4 | Jan Kiszka | |
1873 | 1bc22652 | Andreas Fรคrber | ret = kvm_getput_regs(cpu, 0);
|
1874 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1875 | 05330448 | aliguori | return ret;
|
1876 | b9bec74b | Jan Kiszka | } |
1877 | 1bc22652 | Andreas Fรคrber | ret = kvm_get_xsave(cpu); |
1878 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1879 | f1665b21 | Sheng Yang | return ret;
|
1880 | b9bec74b | Jan Kiszka | } |
1881 | 1bc22652 | Andreas Fรคrber | ret = kvm_get_xcrs(cpu); |
1882 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1883 | 05330448 | aliguori | return ret;
|
1884 | b9bec74b | Jan Kiszka | } |
1885 | 1bc22652 | Andreas Fรคrber | ret = kvm_get_sregs(cpu); |
1886 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1887 | 05330448 | aliguori | return ret;
|
1888 | b9bec74b | Jan Kiszka | } |
1889 | 1bc22652 | Andreas Fรคrber | ret = kvm_get_msrs(cpu); |
1890 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1891 | 05330448 | aliguori | return ret;
|
1892 | b9bec74b | Jan Kiszka | } |
1893 | 23d02d9b | Andreas Fรคrber | ret = kvm_get_mp_state(cpu); |
1894 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1895 | 5a2e3c2e | Jan Kiszka | return ret;
|
1896 | b9bec74b | Jan Kiszka | } |
1897 | 1bc22652 | Andreas Fรคrber | ret = kvm_get_apic(cpu); |
1898 | 680c1c6f | Jan Kiszka | if (ret < 0) { |
1899 | 680c1c6f | Jan Kiszka | return ret;
|
1900 | 680c1c6f | Jan Kiszka | } |
1901 | 1bc22652 | Andreas Fรคrber | ret = kvm_get_vcpu_events(cpu); |
1902 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1903 | a0fb002c | Jan Kiszka | return ret;
|
1904 | b9bec74b | Jan Kiszka | } |
1905 | 1bc22652 | Andreas Fรคrber | ret = kvm_get_debugregs(cpu); |
1906 | b9bec74b | Jan Kiszka | if (ret < 0) { |
1907 | ff44f1a3 | Jan Kiszka | return ret;
|
1908 | b9bec74b | Jan Kiszka | } |
1909 | 05330448 | aliguori | return 0; |
1910 | 05330448 | aliguori | } |
1911 | 05330448 | aliguori | |
1912 | 20d695a9 | Andreas Fรคrber | void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run) |
1913 | 05330448 | aliguori | { |
1914 | 20d695a9 | Andreas Fรคrber | X86CPU *x86_cpu = X86_CPU(cpu); |
1915 | 20d695a9 | Andreas Fรคrber | CPUX86State *env = &x86_cpu->env; |
1916 | ce377af3 | Jan Kiszka | int ret;
|
1917 | ce377af3 | Jan Kiszka | |
1918 | 276ce815 | Lai Jiangshan | /* Inject NMI */
|
1919 | 259186a7 | Andreas Fรคrber | if (cpu->interrupt_request & CPU_INTERRUPT_NMI) {
|
1920 | 259186a7 | Andreas Fรคrber | cpu->interrupt_request &= ~CPU_INTERRUPT_NMI; |
1921 | 276ce815 | Lai Jiangshan | DPRINTF("injected NMI\n");
|
1922 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(cpu, KVM_NMI); |
1923 | ce377af3 | Jan Kiszka | if (ret < 0) { |
1924 | ce377af3 | Jan Kiszka | fprintf(stderr, "KVM: injection failed, NMI lost (%s)\n",
|
1925 | ce377af3 | Jan Kiszka | strerror(-ret)); |
1926 | ce377af3 | Jan Kiszka | } |
1927 | 276ce815 | Lai Jiangshan | } |
1928 | 276ce815 | Lai Jiangshan | |
1929 | db1669bc | Jan Kiszka | if (!kvm_irqchip_in_kernel()) {
|
1930 | d362e757 | Jan Kiszka | /* Force the VCPU out of its inner loop to process any INIT requests
|
1931 | d362e757 | Jan Kiszka | * or pending TPR access reports. */
|
1932 | 259186a7 | Andreas Fรคrber | if (cpu->interrupt_request &
|
1933 | d362e757 | Jan Kiszka | (CPU_INTERRUPT_INIT | CPU_INTERRUPT_TPR)) { |
1934 | fcd7d003 | Andreas Fรคrber | cpu->exit_request = 1;
|
1935 | 05330448 | aliguori | } |
1936 | 05330448 | aliguori | |
1937 | db1669bc | Jan Kiszka | /* Try to inject an interrupt if the guest can accept it */
|
1938 | db1669bc | Jan Kiszka | if (run->ready_for_interrupt_injection &&
|
1939 | 259186a7 | Andreas Fรคrber | (cpu->interrupt_request & CPU_INTERRUPT_HARD) && |
1940 | db1669bc | Jan Kiszka | (env->eflags & IF_MASK)) { |
1941 | db1669bc | Jan Kiszka | int irq;
|
1942 | db1669bc | Jan Kiszka | |
1943 | 259186a7 | Andreas Fรคrber | cpu->interrupt_request &= ~CPU_INTERRUPT_HARD; |
1944 | db1669bc | Jan Kiszka | irq = cpu_get_pic_interrupt(env); |
1945 | db1669bc | Jan Kiszka | if (irq >= 0) { |
1946 | db1669bc | Jan Kiszka | struct kvm_interrupt intr;
|
1947 | db1669bc | Jan Kiszka | |
1948 | db1669bc | Jan Kiszka | intr.irq = irq; |
1949 | db1669bc | Jan Kiszka | DPRINTF("injected interrupt %d\n", irq);
|
1950 | 1bc22652 | Andreas Fรคrber | ret = kvm_vcpu_ioctl(cpu, KVM_INTERRUPT, &intr); |
1951 | ce377af3 | Jan Kiszka | if (ret < 0) { |
1952 | ce377af3 | Jan Kiszka | fprintf(stderr, |
1953 | ce377af3 | Jan Kiszka | "KVM: injection failed, interrupt lost (%s)\n",
|
1954 | ce377af3 | Jan Kiszka | strerror(-ret)); |
1955 | ce377af3 | Jan Kiszka | } |
1956 | db1669bc | Jan Kiszka | } |
1957 | db1669bc | Jan Kiszka | } |
1958 | 05330448 | aliguori | |
1959 | db1669bc | Jan Kiszka | /* If we have an interrupt but the guest is not ready to receive an
|
1960 | db1669bc | Jan Kiszka | * interrupt, request an interrupt window exit. This will
|
1961 | db1669bc | Jan Kiszka | * cause a return to userspace as soon as the guest is ready to
|
1962 | db1669bc | Jan Kiszka | * receive interrupts. */
|
1963 | 259186a7 | Andreas Fรคrber | if ((cpu->interrupt_request & CPU_INTERRUPT_HARD)) {
|
1964 | db1669bc | Jan Kiszka | run->request_interrupt_window = 1;
|
1965 | db1669bc | Jan Kiszka | } else {
|
1966 | db1669bc | Jan Kiszka | run->request_interrupt_window = 0;
|
1967 | db1669bc | Jan Kiszka | } |
1968 | db1669bc | Jan Kiszka | |
1969 | db1669bc | Jan Kiszka | DPRINTF("setting tpr\n");
|
1970 | db1669bc | Jan Kiszka | run->cr8 = cpu_get_apic_tpr(env->apic_state); |
1971 | db1669bc | Jan Kiszka | } |
1972 | 05330448 | aliguori | } |
1973 | 05330448 | aliguori | |
1974 | 20d695a9 | Andreas Fรคrber | void kvm_arch_post_run(CPUState *cpu, struct kvm_run *run) |
1975 | 05330448 | aliguori | { |
1976 | 20d695a9 | Andreas Fรคrber | X86CPU *x86_cpu = X86_CPU(cpu); |
1977 | 20d695a9 | Andreas Fรคrber | CPUX86State *env = &x86_cpu->env; |
1978 | 20d695a9 | Andreas Fรคrber | |
1979 | b9bec74b | Jan Kiszka | if (run->if_flag) {
|
1980 | 05330448 | aliguori | env->eflags |= IF_MASK; |
1981 | b9bec74b | Jan Kiszka | } else {
|
1982 | 05330448 | aliguori | env->eflags &= ~IF_MASK; |
1983 | b9bec74b | Jan Kiszka | } |
1984 | 4a942cea | Blue Swirl | cpu_set_apic_tpr(env->apic_state, run->cr8); |
1985 | 4a942cea | Blue Swirl | cpu_set_apic_base(env->apic_state, run->apic_base); |
1986 | 05330448 | aliguori | } |
1987 | 05330448 | aliguori | |
1988 | 20d695a9 | Andreas Fรคrber | int kvm_arch_process_async_events(CPUState *cs)
|
1989 | 0af691d7 | Marcelo Tosatti | { |
1990 | 20d695a9 | Andreas Fรคrber | X86CPU *cpu = X86_CPU(cs); |
1991 | 20d695a9 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
1992 | 232fc23b | Andreas Fรคrber | |
1993 | 259186a7 | Andreas Fรคrber | if (cs->interrupt_request & CPU_INTERRUPT_MCE) {
|
1994 | ab443475 | Jan Kiszka | /* We must not raise CPU_INTERRUPT_MCE if it's not supported. */
|
1995 | ab443475 | Jan Kiszka | assert(env->mcg_cap); |
1996 | ab443475 | Jan Kiszka | |
1997 | 259186a7 | Andreas Fรคrber | cs->interrupt_request &= ~CPU_INTERRUPT_MCE; |
1998 | ab443475 | Jan Kiszka | |
1999 | dd1750d7 | Andreas Fรคrber | kvm_cpu_synchronize_state(cs); |
2000 | ab443475 | Jan Kiszka | |
2001 | ab443475 | Jan Kiszka | if (env->exception_injected == EXCP08_DBLE) {
|
2002 | ab443475 | Jan Kiszka | /* this means triple fault */
|
2003 | ab443475 | Jan Kiszka | qemu_system_reset_request(); |
2004 | fcd7d003 | Andreas Fรคrber | cs->exit_request = 1;
|
2005 | ab443475 | Jan Kiszka | return 0; |
2006 | ab443475 | Jan Kiszka | } |
2007 | ab443475 | Jan Kiszka | env->exception_injected = EXCP12_MCHK; |
2008 | ab443475 | Jan Kiszka | env->has_error_code = 0;
|
2009 | ab443475 | Jan Kiszka | |
2010 | 259186a7 | Andreas Fรคrber | cs->halted = 0;
|
2011 | ab443475 | Jan Kiszka | if (kvm_irqchip_in_kernel() && env->mp_state == KVM_MP_STATE_HALTED) {
|
2012 | ab443475 | Jan Kiszka | env->mp_state = KVM_MP_STATE_RUNNABLE; |
2013 | ab443475 | Jan Kiszka | } |
2014 | ab443475 | Jan Kiszka | } |
2015 | ab443475 | Jan Kiszka | |
2016 | db1669bc | Jan Kiszka | if (kvm_irqchip_in_kernel()) {
|
2017 | db1669bc | Jan Kiszka | return 0; |
2018 | db1669bc | Jan Kiszka | } |
2019 | db1669bc | Jan Kiszka | |
2020 | 259186a7 | Andreas Fรคrber | if (cs->interrupt_request & CPU_INTERRUPT_POLL) {
|
2021 | 259186a7 | Andreas Fรคrber | cs->interrupt_request &= ~CPU_INTERRUPT_POLL; |
2022 | 5d62c43a | Jan Kiszka | apic_poll_irq(env->apic_state); |
2023 | 5d62c43a | Jan Kiszka | } |
2024 | 259186a7 | Andreas Fรคrber | if (((cs->interrupt_request & CPU_INTERRUPT_HARD) &&
|
2025 | 4601f7b0 | Jan Kiszka | (env->eflags & IF_MASK)) || |
2026 | 259186a7 | Andreas Fรคrber | (cs->interrupt_request & CPU_INTERRUPT_NMI)) { |
2027 | 259186a7 | Andreas Fรคrber | cs->halted = 0;
|
2028 | 6792a57b | Jan Kiszka | } |
2029 | 259186a7 | Andreas Fรคrber | if (cs->interrupt_request & CPU_INTERRUPT_INIT) {
|
2030 | dd1750d7 | Andreas Fรคrber | kvm_cpu_synchronize_state(cs); |
2031 | 232fc23b | Andreas Fรคrber | do_cpu_init(cpu); |
2032 | 0af691d7 | Marcelo Tosatti | } |
2033 | 259186a7 | Andreas Fรคrber | if (cs->interrupt_request & CPU_INTERRUPT_SIPI) {
|
2034 | dd1750d7 | Andreas Fรคrber | kvm_cpu_synchronize_state(cs); |
2035 | 232fc23b | Andreas Fรคrber | do_cpu_sipi(cpu); |
2036 | 0af691d7 | Marcelo Tosatti | } |
2037 | 259186a7 | Andreas Fรคrber | if (cs->interrupt_request & CPU_INTERRUPT_TPR) {
|
2038 | 259186a7 | Andreas Fรคrber | cs->interrupt_request &= ~CPU_INTERRUPT_TPR; |
2039 | dd1750d7 | Andreas Fรคrber | kvm_cpu_synchronize_state(cs); |
2040 | d362e757 | Jan Kiszka | apic_handle_tpr_access_report(env->apic_state, env->eip, |
2041 | d362e757 | Jan Kiszka | env->tpr_access_type); |
2042 | d362e757 | Jan Kiszka | } |
2043 | 0af691d7 | Marcelo Tosatti | |
2044 | 259186a7 | Andreas Fรคrber | return cs->halted;
|
2045 | 0af691d7 | Marcelo Tosatti | } |
2046 | 0af691d7 | Marcelo Tosatti | |
2047 | 839b5630 | Andreas Fรคrber | static int kvm_handle_halt(X86CPU *cpu) |
2048 | 05330448 | aliguori | { |
2049 | 259186a7 | Andreas Fรคrber | CPUState *cs = CPU(cpu); |
2050 | 839b5630 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
2051 | 839b5630 | Andreas Fรคrber | |
2052 | 259186a7 | Andreas Fรคrber | if (!((cs->interrupt_request & CPU_INTERRUPT_HARD) &&
|
2053 | 05330448 | aliguori | (env->eflags & IF_MASK)) && |
2054 | 259186a7 | Andreas Fรคrber | !(cs->interrupt_request & CPU_INTERRUPT_NMI)) { |
2055 | 259186a7 | Andreas Fรคrber | cs->halted = 1;
|
2056 | bb4ea393 | Jan Kiszka | return EXCP_HLT;
|
2057 | 05330448 | aliguori | } |
2058 | 05330448 | aliguori | |
2059 | bb4ea393 | Jan Kiszka | return 0; |
2060 | 05330448 | aliguori | } |
2061 | 05330448 | aliguori | |
2062 | f7575c96 | Andreas Fรคrber | static int kvm_handle_tpr_access(X86CPU *cpu) |
2063 | d362e757 | Jan Kiszka | { |
2064 | f7575c96 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
2065 | f7575c96 | Andreas Fรคrber | CPUState *cs = CPU(cpu); |
2066 | f7575c96 | Andreas Fรคrber | struct kvm_run *run = cs->kvm_run;
|
2067 | d362e757 | Jan Kiszka | |
2068 | d362e757 | Jan Kiszka | apic_handle_tpr_access_report(env->apic_state, run->tpr_access.rip, |
2069 | d362e757 | Jan Kiszka | run->tpr_access.is_write ? TPR_ACCESS_WRITE |
2070 | d362e757 | Jan Kiszka | : TPR_ACCESS_READ); |
2071 | d362e757 | Jan Kiszka | return 1; |
2072 | d362e757 | Jan Kiszka | } |
2073 | d362e757 | Jan Kiszka | |
2074 | f17ec444 | Andreas Fรคrber | int kvm_arch_insert_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
2075 | e22a25c9 | aliguori | { |
2076 | 38972938 | Juan Quintela | static const uint8_t int3 = 0xcc; |
2077 | 64bf3f4e | aliguori | |
2078 | f17ec444 | Andreas Fรคrber | if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, 1, 0) || |
2079 | f17ec444 | Andreas Fรคrber | cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&int3, 1, 1)) { |
2080 | e22a25c9 | aliguori | return -EINVAL;
|
2081 | b9bec74b | Jan Kiszka | } |
2082 | e22a25c9 | aliguori | return 0; |
2083 | e22a25c9 | aliguori | } |
2084 | e22a25c9 | aliguori | |
2085 | f17ec444 | Andreas Fรคrber | int kvm_arch_remove_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
2086 | e22a25c9 | aliguori | { |
2087 | e22a25c9 | aliguori | uint8_t int3; |
2088 | e22a25c9 | aliguori | |
2089 | f17ec444 | Andreas Fรคrber | if (cpu_memory_rw_debug(cs, bp->pc, &int3, 1, 0) || int3 != 0xcc || |
2090 | f17ec444 | Andreas Fรคrber | cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, 1, 1)) { |
2091 | e22a25c9 | aliguori | return -EINVAL;
|
2092 | b9bec74b | Jan Kiszka | } |
2093 | e22a25c9 | aliguori | return 0; |
2094 | e22a25c9 | aliguori | } |
2095 | e22a25c9 | aliguori | |
2096 | e22a25c9 | aliguori | static struct { |
2097 | e22a25c9 | aliguori | target_ulong addr; |
2098 | e22a25c9 | aliguori | int len;
|
2099 | e22a25c9 | aliguori | int type;
|
2100 | e22a25c9 | aliguori | } hw_breakpoint[4];
|
2101 | e22a25c9 | aliguori | |
2102 | e22a25c9 | aliguori | static int nb_hw_breakpoint; |
2103 | e22a25c9 | aliguori | |
2104 | e22a25c9 | aliguori | static int find_hw_breakpoint(target_ulong addr, int len, int type) |
2105 | e22a25c9 | aliguori | { |
2106 | e22a25c9 | aliguori | int n;
|
2107 | e22a25c9 | aliguori | |
2108 | b9bec74b | Jan Kiszka | for (n = 0; n < nb_hw_breakpoint; n++) { |
2109 | e22a25c9 | aliguori | if (hw_breakpoint[n].addr == addr && hw_breakpoint[n].type == type &&
|
2110 | b9bec74b | Jan Kiszka | (hw_breakpoint[n].len == len || len == -1)) {
|
2111 | e22a25c9 | aliguori | return n;
|
2112 | b9bec74b | Jan Kiszka | } |
2113 | b9bec74b | Jan Kiszka | } |
2114 | e22a25c9 | aliguori | return -1; |
2115 | e22a25c9 | aliguori | } |
2116 | e22a25c9 | aliguori | |
2117 | e22a25c9 | aliguori | int kvm_arch_insert_hw_breakpoint(target_ulong addr,
|
2118 | e22a25c9 | aliguori | target_ulong len, int type)
|
2119 | e22a25c9 | aliguori | { |
2120 | e22a25c9 | aliguori | switch (type) {
|
2121 | e22a25c9 | aliguori | case GDB_BREAKPOINT_HW:
|
2122 | e22a25c9 | aliguori | len = 1;
|
2123 | e22a25c9 | aliguori | break;
|
2124 | e22a25c9 | aliguori | case GDB_WATCHPOINT_WRITE:
|
2125 | e22a25c9 | aliguori | case GDB_WATCHPOINT_ACCESS:
|
2126 | e22a25c9 | aliguori | switch (len) {
|
2127 | e22a25c9 | aliguori | case 1: |
2128 | e22a25c9 | aliguori | break;
|
2129 | e22a25c9 | aliguori | case 2: |
2130 | e22a25c9 | aliguori | case 4: |
2131 | e22a25c9 | aliguori | case 8: |
2132 | b9bec74b | Jan Kiszka | if (addr & (len - 1)) { |
2133 | e22a25c9 | aliguori | return -EINVAL;
|
2134 | b9bec74b | Jan Kiszka | } |
2135 | e22a25c9 | aliguori | break;
|
2136 | e22a25c9 | aliguori | default:
|
2137 | e22a25c9 | aliguori | return -EINVAL;
|
2138 | e22a25c9 | aliguori | } |
2139 | e22a25c9 | aliguori | break;
|
2140 | e22a25c9 | aliguori | default:
|
2141 | e22a25c9 | aliguori | return -ENOSYS;
|
2142 | e22a25c9 | aliguori | } |
2143 | e22a25c9 | aliguori | |
2144 | b9bec74b | Jan Kiszka | if (nb_hw_breakpoint == 4) { |
2145 | e22a25c9 | aliguori | return -ENOBUFS;
|
2146 | b9bec74b | Jan Kiszka | } |
2147 | b9bec74b | Jan Kiszka | if (find_hw_breakpoint(addr, len, type) >= 0) { |
2148 | e22a25c9 | aliguori | return -EEXIST;
|
2149 | b9bec74b | Jan Kiszka | } |
2150 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].addr = addr; |
2151 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].len = len; |
2152 | e22a25c9 | aliguori | hw_breakpoint[nb_hw_breakpoint].type = type; |
2153 | e22a25c9 | aliguori | nb_hw_breakpoint++; |
2154 | e22a25c9 | aliguori | |
2155 | e22a25c9 | aliguori | return 0; |
2156 | e22a25c9 | aliguori | } |
2157 | e22a25c9 | aliguori | |
2158 | e22a25c9 | aliguori | int kvm_arch_remove_hw_breakpoint(target_ulong addr,
|
2159 | e22a25c9 | aliguori | target_ulong len, int type)
|
2160 | e22a25c9 | aliguori | { |
2161 | e22a25c9 | aliguori | int n;
|
2162 | e22a25c9 | aliguori | |
2163 | e22a25c9 | aliguori | n = find_hw_breakpoint(addr, (type == GDB_BREAKPOINT_HW) ? 1 : len, type);
|
2164 | b9bec74b | Jan Kiszka | if (n < 0) { |
2165 | e22a25c9 | aliguori | return -ENOENT;
|
2166 | b9bec74b | Jan Kiszka | } |
2167 | e22a25c9 | aliguori | nb_hw_breakpoint--; |
2168 | e22a25c9 | aliguori | hw_breakpoint[n] = hw_breakpoint[nb_hw_breakpoint]; |
2169 | e22a25c9 | aliguori | |
2170 | e22a25c9 | aliguori | return 0; |
2171 | e22a25c9 | aliguori | } |
2172 | e22a25c9 | aliguori | |
2173 | e22a25c9 | aliguori | void kvm_arch_remove_all_hw_breakpoints(void) |
2174 | e22a25c9 | aliguori | { |
2175 | e22a25c9 | aliguori | nb_hw_breakpoint = 0;
|
2176 | e22a25c9 | aliguori | } |
2177 | e22a25c9 | aliguori | |
2178 | e22a25c9 | aliguori | static CPUWatchpoint hw_watchpoint;
|
2179 | e22a25c9 | aliguori | |
2180 | a60f24b5 | Andreas Fรคrber | static int kvm_handle_debug(X86CPU *cpu, |
2181 | 48405526 | Blue Swirl | struct kvm_debug_exit_arch *arch_info)
|
2182 | e22a25c9 | aliguori | { |
2183 | ed2803da | Andreas Fรคrber | CPUState *cs = CPU(cpu); |
2184 | a60f24b5 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
2185 | f2574737 | Jan Kiszka | int ret = 0; |
2186 | e22a25c9 | aliguori | int n;
|
2187 | e22a25c9 | aliguori | |
2188 | e22a25c9 | aliguori | if (arch_info->exception == 1) { |
2189 | e22a25c9 | aliguori | if (arch_info->dr6 & (1 << 14)) { |
2190 | ed2803da | Andreas Fรคrber | if (cs->singlestep_enabled) {
|
2191 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
2192 | b9bec74b | Jan Kiszka | } |
2193 | e22a25c9 | aliguori | } else {
|
2194 | b9bec74b | Jan Kiszka | for (n = 0; n < 4; n++) { |
2195 | b9bec74b | Jan Kiszka | if (arch_info->dr6 & (1 << n)) { |
2196 | e22a25c9 | aliguori | switch ((arch_info->dr7 >> (16 + n*4)) & 0x3) { |
2197 | e22a25c9 | aliguori | case 0x0: |
2198 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
2199 | e22a25c9 | aliguori | break;
|
2200 | e22a25c9 | aliguori | case 0x1: |
2201 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
2202 | 48405526 | Blue Swirl | env->watchpoint_hit = &hw_watchpoint; |
2203 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
2204 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_WRITE; |
2205 | e22a25c9 | aliguori | break;
|
2206 | e22a25c9 | aliguori | case 0x3: |
2207 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
2208 | 48405526 | Blue Swirl | env->watchpoint_hit = &hw_watchpoint; |
2209 | e22a25c9 | aliguori | hw_watchpoint.vaddr = hw_breakpoint[n].addr; |
2210 | e22a25c9 | aliguori | hw_watchpoint.flags = BP_MEM_ACCESS; |
2211 | e22a25c9 | aliguori | break;
|
2212 | e22a25c9 | aliguori | } |
2213 | b9bec74b | Jan Kiszka | } |
2214 | b9bec74b | Jan Kiszka | } |
2215 | e22a25c9 | aliguori | } |
2216 | a60f24b5 | Andreas Fรคrber | } else if (kvm_find_sw_breakpoint(CPU(cpu), arch_info->pc)) { |
2217 | f2574737 | Jan Kiszka | ret = EXCP_DEBUG; |
2218 | b9bec74b | Jan Kiszka | } |
2219 | f2574737 | Jan Kiszka | if (ret == 0) { |
2220 | cb446eca | Andreas Fรคrber | cpu_synchronize_state(CPU(cpu)); |
2221 | 48405526 | Blue Swirl | assert(env->exception_injected == -1);
|
2222 | b0b1d690 | Jan Kiszka | |
2223 | f2574737 | Jan Kiszka | /* pass to guest */
|
2224 | 48405526 | Blue Swirl | env->exception_injected = arch_info->exception; |
2225 | 48405526 | Blue Swirl | env->has_error_code = 0;
|
2226 | b0b1d690 | Jan Kiszka | } |
2227 | e22a25c9 | aliguori | |
2228 | f2574737 | Jan Kiszka | return ret;
|
2229 | e22a25c9 | aliguori | } |
2230 | e22a25c9 | aliguori | |
2231 | 20d695a9 | Andreas Fรคrber | void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg) |
2232 | e22a25c9 | aliguori | { |
2233 | e22a25c9 | aliguori | const uint8_t type_code[] = {
|
2234 | e22a25c9 | aliguori | [GDB_BREAKPOINT_HW] = 0x0,
|
2235 | e22a25c9 | aliguori | [GDB_WATCHPOINT_WRITE] = 0x1,
|
2236 | e22a25c9 | aliguori | [GDB_WATCHPOINT_ACCESS] = 0x3
|
2237 | e22a25c9 | aliguori | }; |
2238 | e22a25c9 | aliguori | const uint8_t len_code[] = {
|
2239 | e22a25c9 | aliguori | [1] = 0x0, [2] = 0x1, [4] = 0x3, [8] = 0x2 |
2240 | e22a25c9 | aliguori | }; |
2241 | e22a25c9 | aliguori | int n;
|
2242 | e22a25c9 | aliguori | |
2243 | a60f24b5 | Andreas Fรคrber | if (kvm_sw_breakpoints_active(cpu)) {
|
2244 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP; |
2245 | b9bec74b | Jan Kiszka | } |
2246 | e22a25c9 | aliguori | if (nb_hw_breakpoint > 0) { |
2247 | e22a25c9 | aliguori | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP; |
2248 | e22a25c9 | aliguori | dbg->arch.debugreg[7] = 0x0600; |
2249 | e22a25c9 | aliguori | for (n = 0; n < nb_hw_breakpoint; n++) { |
2250 | e22a25c9 | aliguori | dbg->arch.debugreg[n] = hw_breakpoint[n].addr; |
2251 | e22a25c9 | aliguori | dbg->arch.debugreg[7] |= (2 << (n * 2)) | |
2252 | e22a25c9 | aliguori | (type_code[hw_breakpoint[n].type] << (16 + n*4)) | |
2253 | 95c077c9 | Jan Kiszka | ((uint32_t)len_code[hw_breakpoint[n].len] << (18 + n*4)); |
2254 | e22a25c9 | aliguori | } |
2255 | e22a25c9 | aliguori | } |
2256 | e22a25c9 | aliguori | } |
2257 | 4513d923 | Gleb Natapov | |
2258 | 2a4dac83 | Jan Kiszka | static bool host_supports_vmx(void) |
2259 | 2a4dac83 | Jan Kiszka | { |
2260 | 2a4dac83 | Jan Kiszka | uint32_t ecx, unused; |
2261 | 2a4dac83 | Jan Kiszka | |
2262 | 2a4dac83 | Jan Kiszka | host_cpuid(1, 0, &unused, &unused, &ecx, &unused); |
2263 | 2a4dac83 | Jan Kiszka | return ecx & CPUID_EXT_VMX;
|
2264 | 2a4dac83 | Jan Kiszka | } |
2265 | 2a4dac83 | Jan Kiszka | |
2266 | 2a4dac83 | Jan Kiszka | #define VMX_INVALID_GUEST_STATE 0x80000021 |
2267 | 2a4dac83 | Jan Kiszka | |
2268 | 20d695a9 | Andreas Fรคrber | int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) |
2269 | 2a4dac83 | Jan Kiszka | { |
2270 | 20d695a9 | Andreas Fรคrber | X86CPU *cpu = X86_CPU(cs); |
2271 | 2a4dac83 | Jan Kiszka | uint64_t code; |
2272 | 2a4dac83 | Jan Kiszka | int ret;
|
2273 | 2a4dac83 | Jan Kiszka | |
2274 | 2a4dac83 | Jan Kiszka | switch (run->exit_reason) {
|
2275 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_HLT:
|
2276 | 2a4dac83 | Jan Kiszka | DPRINTF("handle_hlt\n");
|
2277 | 839b5630 | Andreas Fรคrber | ret = kvm_handle_halt(cpu); |
2278 | 2a4dac83 | Jan Kiszka | break;
|
2279 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_SET_TPR:
|
2280 | 2a4dac83 | Jan Kiszka | ret = 0;
|
2281 | 2a4dac83 | Jan Kiszka | break;
|
2282 | d362e757 | Jan Kiszka | case KVM_EXIT_TPR_ACCESS:
|
2283 | f7575c96 | Andreas Fรคrber | ret = kvm_handle_tpr_access(cpu); |
2284 | d362e757 | Jan Kiszka | break;
|
2285 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_FAIL_ENTRY:
|
2286 | 2a4dac83 | Jan Kiszka | code = run->fail_entry.hardware_entry_failure_reason; |
2287 | 2a4dac83 | Jan Kiszka | fprintf(stderr, "KVM: entry failed, hardware error 0x%" PRIx64 "\n", |
2288 | 2a4dac83 | Jan Kiszka | code); |
2289 | 2a4dac83 | Jan Kiszka | if (host_supports_vmx() && code == VMX_INVALID_GUEST_STATE) {
|
2290 | 2a4dac83 | Jan Kiszka | fprintf(stderr, |
2291 | 12619721 | Vagrant Cascadian | "\nIf you're running a guest on an Intel machine without "
|
2292 | 2a4dac83 | Jan Kiszka | "unrestricted mode\n"
|
2293 | 2a4dac83 | Jan Kiszka | "support, the failure can be most likely due to the guest "
|
2294 | 2a4dac83 | Jan Kiszka | "entering an invalid\n"
|
2295 | 2a4dac83 | Jan Kiszka | "state for Intel VT. For example, the guest maybe running "
|
2296 | 2a4dac83 | Jan Kiszka | "in big real mode\n"
|
2297 | 2a4dac83 | Jan Kiszka | "which is not supported on less recent Intel processors."
|
2298 | 2a4dac83 | Jan Kiszka | "\n\n");
|
2299 | 2a4dac83 | Jan Kiszka | } |
2300 | 2a4dac83 | Jan Kiszka | ret = -1;
|
2301 | 2a4dac83 | Jan Kiszka | break;
|
2302 | 2a4dac83 | Jan Kiszka | case KVM_EXIT_EXCEPTION:
|
2303 | 2a4dac83 | Jan Kiszka | fprintf(stderr, "KVM: exception %d exit (error code 0x%x)\n",
|
2304 | 2a4dac83 | Jan Kiszka | run->ex.exception, run->ex.error_code); |
2305 | 2a4dac83 | Jan Kiszka | ret = -1;
|
2306 | 2a4dac83 | Jan Kiszka | break;
|
2307 | f2574737 | Jan Kiszka | case KVM_EXIT_DEBUG:
|
2308 | f2574737 | Jan Kiszka | DPRINTF("kvm_exit_debug\n");
|
2309 | a60f24b5 | Andreas Fรคrber | ret = kvm_handle_debug(cpu, &run->debug.arch); |
2310 | f2574737 | Jan Kiszka | break;
|
2311 | 2a4dac83 | Jan Kiszka | default:
|
2312 | 2a4dac83 | Jan Kiszka | fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason);
|
2313 | 2a4dac83 | Jan Kiszka | ret = -1;
|
2314 | 2a4dac83 | Jan Kiszka | break;
|
2315 | 2a4dac83 | Jan Kiszka | } |
2316 | 2a4dac83 | Jan Kiszka | |
2317 | 2a4dac83 | Jan Kiszka | return ret;
|
2318 | 2a4dac83 | Jan Kiszka | } |
2319 | 2a4dac83 | Jan Kiszka | |
2320 | 20d695a9 | Andreas Fรคrber | bool kvm_arch_stop_on_emulation_error(CPUState *cs)
|
2321 | 4513d923 | Gleb Natapov | { |
2322 | 20d695a9 | Andreas Fรคrber | X86CPU *cpu = X86_CPU(cs); |
2323 | 20d695a9 | Andreas Fรคrber | CPUX86State *env = &cpu->env; |
2324 | 20d695a9 | Andreas Fรคrber | |
2325 | dd1750d7 | Andreas Fรคrber | kvm_cpu_synchronize_state(cs); |
2326 | b9bec74b | Jan Kiszka | return !(env->cr[0] & CR0_PE_MASK) || |
2327 | b9bec74b | Jan Kiszka | ((env->segs[R_CS].selector & 3) != 3); |
2328 | 4513d923 | Gleb Natapov | } |
2329 | 84b058d7 | Jan Kiszka | |
2330 | 84b058d7 | Jan Kiszka | void kvm_arch_init_irq_routing(KVMState *s)
|
2331 | 84b058d7 | Jan Kiszka | { |
2332 | 84b058d7 | Jan Kiszka | if (!kvm_check_extension(s, KVM_CAP_IRQ_ROUTING)) {
|
2333 | 84b058d7 | Jan Kiszka | /* If kernel can't do irq routing, interrupt source
|
2334 | 84b058d7 | Jan Kiszka | * override 0->2 cannot be set up as required by HPET.
|
2335 | 84b058d7 | Jan Kiszka | * So we have to disable it.
|
2336 | 84b058d7 | Jan Kiszka | */
|
2337 | 84b058d7 | Jan Kiszka | no_hpet = 1;
|
2338 | 84b058d7 | Jan Kiszka | } |
2339 | cc7e0ddf | Peter Maydell | /* We know at this point that we're using the in-kernel
|
2340 | 614e41bc | Peter Maydell | * irqchip, so we can use irqfds, and on x86 we know
|
2341 | f3e1bed8 | Peter Maydell | * we can use msi via irqfd and GSI routing.
|
2342 | cc7e0ddf | Peter Maydell | */
|
2343 | cc7e0ddf | Peter Maydell | kvm_irqfds_allowed = true;
|
2344 | 614e41bc | Peter Maydell | kvm_msi_via_irqfd_allowed = true;
|
2345 | f3e1bed8 | Peter Maydell | kvm_gsi_routing_allowed = true;
|
2346 | 84b058d7 | Jan Kiszka | } |
2347 | b139bd30 | Jan Kiszka | |
2348 | b139bd30 | Jan Kiszka | /* Classic KVM device assignment interface. Will remain x86 only. */
|
2349 | b139bd30 | Jan Kiszka | int kvm_device_pci_assign(KVMState *s, PCIHostDeviceAddress *dev_addr,
|
2350 | b139bd30 | Jan Kiszka | uint32_t flags, uint32_t *dev_id) |
2351 | b139bd30 | Jan Kiszka | { |
2352 | b139bd30 | Jan Kiszka | struct kvm_assigned_pci_dev dev_data = {
|
2353 | b139bd30 | Jan Kiszka | .segnr = dev_addr->domain, |
2354 | b139bd30 | Jan Kiszka | .busnr = dev_addr->bus, |
2355 | b139bd30 | Jan Kiszka | .devfn = PCI_DEVFN(dev_addr->slot, dev_addr->function), |
2356 | b139bd30 | Jan Kiszka | .flags = flags, |
2357 | b139bd30 | Jan Kiszka | }; |
2358 | b139bd30 | Jan Kiszka | int ret;
|
2359 | b139bd30 | Jan Kiszka | |
2360 | b139bd30 | Jan Kiszka | dev_data.assigned_dev_id = |
2361 | b139bd30 | Jan Kiszka | (dev_addr->domain << 16) | (dev_addr->bus << 8) | dev_data.devfn; |
2362 | b139bd30 | Jan Kiszka | |
2363 | b139bd30 | Jan Kiszka | ret = kvm_vm_ioctl(s, KVM_ASSIGN_PCI_DEVICE, &dev_data); |
2364 | b139bd30 | Jan Kiszka | if (ret < 0) { |
2365 | b139bd30 | Jan Kiszka | return ret;
|
2366 | b139bd30 | Jan Kiszka | } |
2367 | b139bd30 | Jan Kiszka | |
2368 | b139bd30 | Jan Kiszka | *dev_id = dev_data.assigned_dev_id; |
2369 | b139bd30 | Jan Kiszka | |
2370 | b139bd30 | Jan Kiszka | return 0; |
2371 | b139bd30 | Jan Kiszka | } |
2372 | b139bd30 | Jan Kiszka | |
2373 | b139bd30 | Jan Kiszka | int kvm_device_pci_deassign(KVMState *s, uint32_t dev_id)
|
2374 | b139bd30 | Jan Kiszka | { |
2375 | b139bd30 | Jan Kiszka | struct kvm_assigned_pci_dev dev_data = {
|
2376 | b139bd30 | Jan Kiszka | .assigned_dev_id = dev_id, |
2377 | b139bd30 | Jan Kiszka | }; |
2378 | b139bd30 | Jan Kiszka | |
2379 | b139bd30 | Jan Kiszka | return kvm_vm_ioctl(s, KVM_DEASSIGN_PCI_DEVICE, &dev_data);
|
2380 | b139bd30 | Jan Kiszka | } |
2381 | b139bd30 | Jan Kiszka | |
2382 | b139bd30 | Jan Kiszka | static int kvm_assign_irq_internal(KVMState *s, uint32_t dev_id, |
2383 | b139bd30 | Jan Kiszka | uint32_t irq_type, uint32_t guest_irq) |
2384 | b139bd30 | Jan Kiszka | { |
2385 | b139bd30 | Jan Kiszka | struct kvm_assigned_irq assigned_irq = {
|
2386 | b139bd30 | Jan Kiszka | .assigned_dev_id = dev_id, |
2387 | b139bd30 | Jan Kiszka | .guest_irq = guest_irq, |
2388 | b139bd30 | Jan Kiszka | .flags = irq_type, |
2389 | b139bd30 | Jan Kiszka | }; |
2390 | b139bd30 | Jan Kiszka | |
2391 | b139bd30 | Jan Kiszka | if (kvm_check_extension(s, KVM_CAP_ASSIGN_DEV_IRQ)) {
|
2392 | b139bd30 | Jan Kiszka | return kvm_vm_ioctl(s, KVM_ASSIGN_DEV_IRQ, &assigned_irq);
|
2393 | b139bd30 | Jan Kiszka | } else {
|
2394 | b139bd30 | Jan Kiszka | return kvm_vm_ioctl(s, KVM_ASSIGN_IRQ, &assigned_irq);
|
2395 | b139bd30 | Jan Kiszka | } |
2396 | b139bd30 | Jan Kiszka | } |
2397 | b139bd30 | Jan Kiszka | |
2398 | b139bd30 | Jan Kiszka | int kvm_device_intx_assign(KVMState *s, uint32_t dev_id, bool use_host_msi, |
2399 | b139bd30 | Jan Kiszka | uint32_t guest_irq) |
2400 | b139bd30 | Jan Kiszka | { |
2401 | b139bd30 | Jan Kiszka | uint32_t irq_type = KVM_DEV_IRQ_GUEST_INTX | |
2402 | b139bd30 | Jan Kiszka | (use_host_msi ? KVM_DEV_IRQ_HOST_MSI : KVM_DEV_IRQ_HOST_INTX); |
2403 | b139bd30 | Jan Kiszka | |
2404 | b139bd30 | Jan Kiszka | return kvm_assign_irq_internal(s, dev_id, irq_type, guest_irq);
|
2405 | b139bd30 | Jan Kiszka | } |
2406 | b139bd30 | Jan Kiszka | |
2407 | b139bd30 | Jan Kiszka | int kvm_device_intx_set_mask(KVMState *s, uint32_t dev_id, bool masked) |
2408 | b139bd30 | Jan Kiszka | { |
2409 | b139bd30 | Jan Kiszka | struct kvm_assigned_pci_dev dev_data = {
|
2410 | b139bd30 | Jan Kiszka | .assigned_dev_id = dev_id, |
2411 | b139bd30 | Jan Kiszka | .flags = masked ? KVM_DEV_ASSIGN_MASK_INTX : 0,
|
2412 | b139bd30 | Jan Kiszka | }; |
2413 | b139bd30 | Jan Kiszka | |
2414 | b139bd30 | Jan Kiszka | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_INTX_MASK, &dev_data);
|
2415 | b139bd30 | Jan Kiszka | } |
2416 | b139bd30 | Jan Kiszka | |
2417 | b139bd30 | Jan Kiszka | static int kvm_deassign_irq_internal(KVMState *s, uint32_t dev_id, |
2418 | b139bd30 | Jan Kiszka | uint32_t type) |
2419 | b139bd30 | Jan Kiszka | { |
2420 | b139bd30 | Jan Kiszka | struct kvm_assigned_irq assigned_irq = {
|
2421 | b139bd30 | Jan Kiszka | .assigned_dev_id = dev_id, |
2422 | b139bd30 | Jan Kiszka | .flags = type, |
2423 | b139bd30 | Jan Kiszka | }; |
2424 | b139bd30 | Jan Kiszka | |
2425 | b139bd30 | Jan Kiszka | return kvm_vm_ioctl(s, KVM_DEASSIGN_DEV_IRQ, &assigned_irq);
|
2426 | b139bd30 | Jan Kiszka | } |
2427 | b139bd30 | Jan Kiszka | |
2428 | b139bd30 | Jan Kiszka | int kvm_device_intx_deassign(KVMState *s, uint32_t dev_id, bool use_host_msi) |
2429 | b139bd30 | Jan Kiszka | { |
2430 | b139bd30 | Jan Kiszka | return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_INTX |
|
2431 | b139bd30 | Jan Kiszka | (use_host_msi ? KVM_DEV_IRQ_HOST_MSI : KVM_DEV_IRQ_HOST_INTX)); |
2432 | b139bd30 | Jan Kiszka | } |
2433 | b139bd30 | Jan Kiszka | |
2434 | b139bd30 | Jan Kiszka | int kvm_device_msi_assign(KVMState *s, uint32_t dev_id, int virq) |
2435 | b139bd30 | Jan Kiszka | { |
2436 | b139bd30 | Jan Kiszka | return kvm_assign_irq_internal(s, dev_id, KVM_DEV_IRQ_HOST_MSI |
|
2437 | b139bd30 | Jan Kiszka | KVM_DEV_IRQ_GUEST_MSI, virq); |
2438 | b139bd30 | Jan Kiszka | } |
2439 | b139bd30 | Jan Kiszka | |
2440 | b139bd30 | Jan Kiszka | int kvm_device_msi_deassign(KVMState *s, uint32_t dev_id)
|
2441 | b139bd30 | Jan Kiszka | { |
2442 | b139bd30 | Jan Kiszka | return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_MSI |
|
2443 | b139bd30 | Jan Kiszka | KVM_DEV_IRQ_HOST_MSI); |
2444 | b139bd30 | Jan Kiszka | } |
2445 | b139bd30 | Jan Kiszka | |
2446 | b139bd30 | Jan Kiszka | bool kvm_device_msix_supported(KVMState *s)
|
2447 | b139bd30 | Jan Kiszka | { |
2448 | b139bd30 | Jan Kiszka | /* The kernel lacks a corresponding KVM_CAP, so we probe by calling
|
2449 | b139bd30 | Jan Kiszka | * KVM_ASSIGN_SET_MSIX_NR with an invalid parameter. */
|
2450 | b139bd30 | Jan Kiszka | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_MSIX_NR, NULL) == -EFAULT; |
2451 | b139bd30 | Jan Kiszka | } |
2452 | b139bd30 | Jan Kiszka | |
2453 | b139bd30 | Jan Kiszka | int kvm_device_msix_init_vectors(KVMState *s, uint32_t dev_id,
|
2454 | b139bd30 | Jan Kiszka | uint32_t nr_vectors) |
2455 | b139bd30 | Jan Kiszka | { |
2456 | b139bd30 | Jan Kiszka | struct kvm_assigned_msix_nr msix_nr = {
|
2457 | b139bd30 | Jan Kiszka | .assigned_dev_id = dev_id, |
2458 | b139bd30 | Jan Kiszka | .entry_nr = nr_vectors, |
2459 | b139bd30 | Jan Kiszka | }; |
2460 | b139bd30 | Jan Kiszka | |
2461 | b139bd30 | Jan Kiszka | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_MSIX_NR, &msix_nr);
|
2462 | b139bd30 | Jan Kiszka | } |
2463 | b139bd30 | Jan Kiszka | |
2464 | b139bd30 | Jan Kiszka | int kvm_device_msix_set_vector(KVMState *s, uint32_t dev_id, uint32_t vector,
|
2465 | b139bd30 | Jan Kiszka | int virq)
|
2466 | b139bd30 | Jan Kiszka | { |
2467 | b139bd30 | Jan Kiszka | struct kvm_assigned_msix_entry msix_entry = {
|
2468 | b139bd30 | Jan Kiszka | .assigned_dev_id = dev_id, |
2469 | b139bd30 | Jan Kiszka | .gsi = virq, |
2470 | b139bd30 | Jan Kiszka | .entry = vector, |
2471 | b139bd30 | Jan Kiszka | }; |
2472 | b139bd30 | Jan Kiszka | |
2473 | b139bd30 | Jan Kiszka | return kvm_vm_ioctl(s, KVM_ASSIGN_SET_MSIX_ENTRY, &msix_entry);
|
2474 | b139bd30 | Jan Kiszka | } |
2475 | b139bd30 | Jan Kiszka | |
2476 | b139bd30 | Jan Kiszka | int kvm_device_msix_assign(KVMState *s, uint32_t dev_id)
|
2477 | b139bd30 | Jan Kiszka | { |
2478 | b139bd30 | Jan Kiszka | return kvm_assign_irq_internal(s, dev_id, KVM_DEV_IRQ_HOST_MSIX |
|
2479 | b139bd30 | Jan Kiszka | KVM_DEV_IRQ_GUEST_MSIX, 0);
|
2480 | b139bd30 | Jan Kiszka | } |
2481 | b139bd30 | Jan Kiszka | |
2482 | b139bd30 | Jan Kiszka | int kvm_device_msix_deassign(KVMState *s, uint32_t dev_id)
|
2483 | b139bd30 | Jan Kiszka | { |
2484 | b139bd30 | Jan Kiszka | return kvm_deassign_irq_internal(s, dev_id, KVM_DEV_IRQ_GUEST_MSIX |
|
2485 | b139bd30 | Jan Kiszka | KVM_DEV_IRQ_HOST_MSIX); |
2486 | b139bd30 | Jan Kiszka | } |