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1 | 296af7c9 | Blue Swirl | /*
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2 | 296af7c9 | Blue Swirl | * QEMU System Emulator
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3 | 296af7c9 | Blue Swirl | *
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4 | 296af7c9 | Blue Swirl | * Copyright (c) 2003-2008 Fabrice Bellard
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5 | 296af7c9 | Blue Swirl | *
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6 | 296af7c9 | Blue Swirl | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 296af7c9 | Blue Swirl | * of this software and associated documentation files (the "Software"), to deal
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8 | 296af7c9 | Blue Swirl | * in the Software without restriction, including without limitation the rights
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9 | 296af7c9 | Blue Swirl | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 296af7c9 | Blue Swirl | * copies of the Software, and to permit persons to whom the Software is
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11 | 296af7c9 | Blue Swirl | * furnished to do so, subject to the following conditions:
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12 | 296af7c9 | Blue Swirl | *
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13 | 296af7c9 | Blue Swirl | * The above copyright notice and this permission notice shall be included in
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14 | 296af7c9 | Blue Swirl | * all copies or substantial portions of the Software.
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15 | 296af7c9 | Blue Swirl | *
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16 | 296af7c9 | Blue Swirl | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 296af7c9 | Blue Swirl | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 296af7c9 | Blue Swirl | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 296af7c9 | Blue Swirl | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 296af7c9 | Blue Swirl | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 296af7c9 | Blue Swirl | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 296af7c9 | Blue Swirl | * THE SOFTWARE.
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23 | 296af7c9 | Blue Swirl | */
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24 | 296af7c9 | Blue Swirl | |
25 | 296af7c9 | Blue Swirl | /* Needed early for CONFIG_BSD etc. */
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26 | 296af7c9 | Blue Swirl | #include "config-host.h" |
27 | 296af7c9 | Blue Swirl | |
28 | 296af7c9 | Blue Swirl | #include "monitor.h" |
29 | 296af7c9 | Blue Swirl | #include "sysemu.h" |
30 | 296af7c9 | Blue Swirl | #include "gdbstub.h" |
31 | 296af7c9 | Blue Swirl | #include "dma.h" |
32 | 296af7c9 | Blue Swirl | #include "kvm.h" |
33 | de0b36b6 | Luiz Capitulino | #include "qmp-commands.h" |
34 | 296af7c9 | Blue Swirl | |
35 | 96284e89 | Paolo Bonzini | #include "qemu-thread.h" |
36 | 296af7c9 | Blue Swirl | #include "cpus.h" |
37 | 8156be56 | Paolo Bonzini | #include "qtest.h" |
38 | 44a9b356 | Paolo Bonzini | #include "main-loop.h" |
39 | 0ff0fc19 | Jan Kiszka | |
40 | 0ff0fc19 | Jan Kiszka | #ifndef _WIN32
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41 | a8486bc9 | Marcelo Tosatti | #include "compatfd.h" |
42 | 0ff0fc19 | Jan Kiszka | #endif
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43 | 296af7c9 | Blue Swirl | |
44 | 6d9cb73c | Jan Kiszka | #ifdef CONFIG_LINUX
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45 | 6d9cb73c | Jan Kiszka | |
46 | 6d9cb73c | Jan Kiszka | #include <sys/prctl.h> |
47 | 6d9cb73c | Jan Kiszka | |
48 | c0532a76 | Marcelo Tosatti | #ifndef PR_MCE_KILL
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49 | c0532a76 | Marcelo Tosatti | #define PR_MCE_KILL 33 |
50 | c0532a76 | Marcelo Tosatti | #endif
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51 | c0532a76 | Marcelo Tosatti | |
52 | 6d9cb73c | Jan Kiszka | #ifndef PR_MCE_KILL_SET
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53 | 6d9cb73c | Jan Kiszka | #define PR_MCE_KILL_SET 1 |
54 | 6d9cb73c | Jan Kiszka | #endif
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55 | 6d9cb73c | Jan Kiszka | |
56 | 6d9cb73c | Jan Kiszka | #ifndef PR_MCE_KILL_EARLY
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57 | 6d9cb73c | Jan Kiszka | #define PR_MCE_KILL_EARLY 1 |
58 | 6d9cb73c | Jan Kiszka | #endif
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59 | 6d9cb73c | Jan Kiszka | |
60 | 6d9cb73c | Jan Kiszka | #endif /* CONFIG_LINUX */ |
61 | 6d9cb73c | Jan Kiszka | |
62 | 9349b4f9 | Andreas Färber | static CPUArchState *next_cpu;
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63 | 296af7c9 | Blue Swirl | |
64 | 296af7c9 | Blue Swirl | /***********************************************************/
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65 | 946fb27c | Paolo Bonzini | /* guest cycle counter */
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66 | 946fb27c | Paolo Bonzini | |
67 | 946fb27c | Paolo Bonzini | /* Conversion factor from emulated instructions to virtual clock ticks. */
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68 | 946fb27c | Paolo Bonzini | static int icount_time_shift; |
69 | 946fb27c | Paolo Bonzini | /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
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70 | 946fb27c | Paolo Bonzini | #define MAX_ICOUNT_SHIFT 10 |
71 | 946fb27c | Paolo Bonzini | /* Compensate for varying guest execution speed. */
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72 | 946fb27c | Paolo Bonzini | static int64_t qemu_icount_bias;
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73 | 946fb27c | Paolo Bonzini | static QEMUTimer *icount_rt_timer;
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74 | 946fb27c | Paolo Bonzini | static QEMUTimer *icount_vm_timer;
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75 | 946fb27c | Paolo Bonzini | static QEMUTimer *icount_warp_timer;
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76 | 946fb27c | Paolo Bonzini | static int64_t vm_clock_warp_start;
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77 | 946fb27c | Paolo Bonzini | static int64_t qemu_icount;
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78 | 946fb27c | Paolo Bonzini | |
79 | 946fb27c | Paolo Bonzini | typedef struct TimersState { |
80 | 946fb27c | Paolo Bonzini | int64_t cpu_ticks_prev; |
81 | 946fb27c | Paolo Bonzini | int64_t cpu_ticks_offset; |
82 | 946fb27c | Paolo Bonzini | int64_t cpu_clock_offset; |
83 | 946fb27c | Paolo Bonzini | int32_t cpu_ticks_enabled; |
84 | 946fb27c | Paolo Bonzini | int64_t dummy; |
85 | 946fb27c | Paolo Bonzini | } TimersState; |
86 | 946fb27c | Paolo Bonzini | |
87 | 946fb27c | Paolo Bonzini | TimersState timers_state; |
88 | 946fb27c | Paolo Bonzini | |
89 | 946fb27c | Paolo Bonzini | /* Return the virtual CPU time, based on the instruction counter. */
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90 | 946fb27c | Paolo Bonzini | int64_t cpu_get_icount(void)
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91 | 946fb27c | Paolo Bonzini | { |
92 | 946fb27c | Paolo Bonzini | int64_t icount; |
93 | 9349b4f9 | Andreas Färber | CPUArchState *env = cpu_single_env; |
94 | 946fb27c | Paolo Bonzini | |
95 | 946fb27c | Paolo Bonzini | icount = qemu_icount; |
96 | 946fb27c | Paolo Bonzini | if (env) {
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97 | 946fb27c | Paolo Bonzini | if (!can_do_io(env)) {
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98 | 946fb27c | Paolo Bonzini | fprintf(stderr, "Bad clock read\n");
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99 | 946fb27c | Paolo Bonzini | } |
100 | 946fb27c | Paolo Bonzini | icount -= (env->icount_decr.u16.low + env->icount_extra); |
101 | 946fb27c | Paolo Bonzini | } |
102 | 946fb27c | Paolo Bonzini | return qemu_icount_bias + (icount << icount_time_shift);
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103 | 946fb27c | Paolo Bonzini | } |
104 | 946fb27c | Paolo Bonzini | |
105 | 946fb27c | Paolo Bonzini | /* return the host CPU cycle counter and handle stop/restart */
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106 | 946fb27c | Paolo Bonzini | int64_t cpu_get_ticks(void)
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107 | 946fb27c | Paolo Bonzini | { |
108 | 946fb27c | Paolo Bonzini | if (use_icount) {
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109 | 946fb27c | Paolo Bonzini | return cpu_get_icount();
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110 | 946fb27c | Paolo Bonzini | } |
111 | 946fb27c | Paolo Bonzini | if (!timers_state.cpu_ticks_enabled) {
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112 | 946fb27c | Paolo Bonzini | return timers_state.cpu_ticks_offset;
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113 | 946fb27c | Paolo Bonzini | } else {
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114 | 946fb27c | Paolo Bonzini | int64_t ticks; |
115 | 946fb27c | Paolo Bonzini | ticks = cpu_get_real_ticks(); |
116 | 946fb27c | Paolo Bonzini | if (timers_state.cpu_ticks_prev > ticks) {
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117 | 946fb27c | Paolo Bonzini | /* Note: non increasing ticks may happen if the host uses
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118 | 946fb27c | Paolo Bonzini | software suspend */
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119 | 946fb27c | Paolo Bonzini | timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks; |
120 | 946fb27c | Paolo Bonzini | } |
121 | 946fb27c | Paolo Bonzini | timers_state.cpu_ticks_prev = ticks; |
122 | 946fb27c | Paolo Bonzini | return ticks + timers_state.cpu_ticks_offset;
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123 | 946fb27c | Paolo Bonzini | } |
124 | 946fb27c | Paolo Bonzini | } |
125 | 946fb27c | Paolo Bonzini | |
126 | 946fb27c | Paolo Bonzini | /* return the host CPU monotonic timer and handle stop/restart */
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127 | 946fb27c | Paolo Bonzini | int64_t cpu_get_clock(void)
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128 | 946fb27c | Paolo Bonzini | { |
129 | 946fb27c | Paolo Bonzini | int64_t ti; |
130 | 946fb27c | Paolo Bonzini | if (!timers_state.cpu_ticks_enabled) {
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131 | 946fb27c | Paolo Bonzini | return timers_state.cpu_clock_offset;
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132 | 946fb27c | Paolo Bonzini | } else {
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133 | 946fb27c | Paolo Bonzini | ti = get_clock(); |
134 | 946fb27c | Paolo Bonzini | return ti + timers_state.cpu_clock_offset;
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135 | 946fb27c | Paolo Bonzini | } |
136 | 946fb27c | Paolo Bonzini | } |
137 | 946fb27c | Paolo Bonzini | |
138 | 946fb27c | Paolo Bonzini | /* enable cpu_get_ticks() */
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139 | 946fb27c | Paolo Bonzini | void cpu_enable_ticks(void) |
140 | 946fb27c | Paolo Bonzini | { |
141 | 946fb27c | Paolo Bonzini | if (!timers_state.cpu_ticks_enabled) {
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142 | 946fb27c | Paolo Bonzini | timers_state.cpu_ticks_offset -= cpu_get_real_ticks(); |
143 | 946fb27c | Paolo Bonzini | timers_state.cpu_clock_offset -= get_clock(); |
144 | 946fb27c | Paolo Bonzini | timers_state.cpu_ticks_enabled = 1;
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145 | 946fb27c | Paolo Bonzini | } |
146 | 946fb27c | Paolo Bonzini | } |
147 | 946fb27c | Paolo Bonzini | |
148 | 946fb27c | Paolo Bonzini | /* disable cpu_get_ticks() : the clock is stopped. You must not call
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149 | 946fb27c | Paolo Bonzini | cpu_get_ticks() after that. */
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150 | 946fb27c | Paolo Bonzini | void cpu_disable_ticks(void) |
151 | 946fb27c | Paolo Bonzini | { |
152 | 946fb27c | Paolo Bonzini | if (timers_state.cpu_ticks_enabled) {
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153 | 946fb27c | Paolo Bonzini | timers_state.cpu_ticks_offset = cpu_get_ticks(); |
154 | 946fb27c | Paolo Bonzini | timers_state.cpu_clock_offset = cpu_get_clock(); |
155 | 946fb27c | Paolo Bonzini | timers_state.cpu_ticks_enabled = 0;
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156 | 946fb27c | Paolo Bonzini | } |
157 | 946fb27c | Paolo Bonzini | } |
158 | 946fb27c | Paolo Bonzini | |
159 | 946fb27c | Paolo Bonzini | /* Correlation between real and virtual time is always going to be
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160 | 946fb27c | Paolo Bonzini | fairly approximate, so ignore small variation.
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161 | 946fb27c | Paolo Bonzini | When the guest is idle real and virtual time will be aligned in
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162 | 946fb27c | Paolo Bonzini | the IO wait loop. */
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163 | 946fb27c | Paolo Bonzini | #define ICOUNT_WOBBLE (get_ticks_per_sec() / 10) |
164 | 946fb27c | Paolo Bonzini | |
165 | 946fb27c | Paolo Bonzini | static void icount_adjust(void) |
166 | 946fb27c | Paolo Bonzini | { |
167 | 946fb27c | Paolo Bonzini | int64_t cur_time; |
168 | 946fb27c | Paolo Bonzini | int64_t cur_icount; |
169 | 946fb27c | Paolo Bonzini | int64_t delta; |
170 | 946fb27c | Paolo Bonzini | static int64_t last_delta;
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171 | 946fb27c | Paolo Bonzini | /* If the VM is not running, then do nothing. */
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172 | 946fb27c | Paolo Bonzini | if (!runstate_is_running()) {
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173 | 946fb27c | Paolo Bonzini | return;
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174 | 946fb27c | Paolo Bonzini | } |
175 | 946fb27c | Paolo Bonzini | cur_time = cpu_get_clock(); |
176 | 946fb27c | Paolo Bonzini | cur_icount = qemu_get_clock_ns(vm_clock); |
177 | 946fb27c | Paolo Bonzini | delta = cur_icount - cur_time; |
178 | 946fb27c | Paolo Bonzini | /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
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179 | 946fb27c | Paolo Bonzini | if (delta > 0 |
180 | 946fb27c | Paolo Bonzini | && last_delta + ICOUNT_WOBBLE < delta * 2
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181 | 946fb27c | Paolo Bonzini | && icount_time_shift > 0) {
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182 | 946fb27c | Paolo Bonzini | /* The guest is getting too far ahead. Slow time down. */
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183 | 946fb27c | Paolo Bonzini | icount_time_shift--; |
184 | 946fb27c | Paolo Bonzini | } |
185 | 946fb27c | Paolo Bonzini | if (delta < 0 |
186 | 946fb27c | Paolo Bonzini | && last_delta - ICOUNT_WOBBLE > delta * 2
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187 | 946fb27c | Paolo Bonzini | && icount_time_shift < MAX_ICOUNT_SHIFT) { |
188 | 946fb27c | Paolo Bonzini | /* The guest is getting too far behind. Speed time up. */
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189 | 946fb27c | Paolo Bonzini | icount_time_shift++; |
190 | 946fb27c | Paolo Bonzini | } |
191 | 946fb27c | Paolo Bonzini | last_delta = delta; |
192 | 946fb27c | Paolo Bonzini | qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift); |
193 | 946fb27c | Paolo Bonzini | } |
194 | 946fb27c | Paolo Bonzini | |
195 | 946fb27c | Paolo Bonzini | static void icount_adjust_rt(void *opaque) |
196 | 946fb27c | Paolo Bonzini | { |
197 | 946fb27c | Paolo Bonzini | qemu_mod_timer(icount_rt_timer, |
198 | 946fb27c | Paolo Bonzini | qemu_get_clock_ms(rt_clock) + 1000);
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199 | 946fb27c | Paolo Bonzini | icount_adjust(); |
200 | 946fb27c | Paolo Bonzini | } |
201 | 946fb27c | Paolo Bonzini | |
202 | 946fb27c | Paolo Bonzini | static void icount_adjust_vm(void *opaque) |
203 | 946fb27c | Paolo Bonzini | { |
204 | 946fb27c | Paolo Bonzini | qemu_mod_timer(icount_vm_timer, |
205 | 946fb27c | Paolo Bonzini | qemu_get_clock_ns(vm_clock) + get_ticks_per_sec() / 10);
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206 | 946fb27c | Paolo Bonzini | icount_adjust(); |
207 | 946fb27c | Paolo Bonzini | } |
208 | 946fb27c | Paolo Bonzini | |
209 | 946fb27c | Paolo Bonzini | static int64_t qemu_icount_round(int64_t count)
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210 | 946fb27c | Paolo Bonzini | { |
211 | 946fb27c | Paolo Bonzini | return (count + (1 << icount_time_shift) - 1) >> icount_time_shift; |
212 | 946fb27c | Paolo Bonzini | } |
213 | 946fb27c | Paolo Bonzini | |
214 | 946fb27c | Paolo Bonzini | static void icount_warp_rt(void *opaque) |
215 | 946fb27c | Paolo Bonzini | { |
216 | 946fb27c | Paolo Bonzini | if (vm_clock_warp_start == -1) { |
217 | 946fb27c | Paolo Bonzini | return;
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218 | 946fb27c | Paolo Bonzini | } |
219 | 946fb27c | Paolo Bonzini | |
220 | 946fb27c | Paolo Bonzini | if (runstate_is_running()) {
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221 | 946fb27c | Paolo Bonzini | int64_t clock = qemu_get_clock_ns(rt_clock); |
222 | 946fb27c | Paolo Bonzini | int64_t warp_delta = clock - vm_clock_warp_start; |
223 | 946fb27c | Paolo Bonzini | if (use_icount == 1) { |
224 | 946fb27c | Paolo Bonzini | qemu_icount_bias += warp_delta; |
225 | 946fb27c | Paolo Bonzini | } else {
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226 | 946fb27c | Paolo Bonzini | /*
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227 | 946fb27c | Paolo Bonzini | * In adaptive mode, do not let the vm_clock run too
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228 | 946fb27c | Paolo Bonzini | * far ahead of real time.
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229 | 946fb27c | Paolo Bonzini | */
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230 | 946fb27c | Paolo Bonzini | int64_t cur_time = cpu_get_clock(); |
231 | 946fb27c | Paolo Bonzini | int64_t cur_icount = qemu_get_clock_ns(vm_clock); |
232 | 946fb27c | Paolo Bonzini | int64_t delta = cur_time - cur_icount; |
233 | 946fb27c | Paolo Bonzini | qemu_icount_bias += MIN(warp_delta, delta); |
234 | 946fb27c | Paolo Bonzini | } |
235 | 946fb27c | Paolo Bonzini | if (qemu_clock_expired(vm_clock)) {
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236 | 946fb27c | Paolo Bonzini | qemu_notify_event(); |
237 | 946fb27c | Paolo Bonzini | } |
238 | 946fb27c | Paolo Bonzini | } |
239 | 946fb27c | Paolo Bonzini | vm_clock_warp_start = -1;
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240 | 946fb27c | Paolo Bonzini | } |
241 | 946fb27c | Paolo Bonzini | |
242 | 8156be56 | Paolo Bonzini | void qtest_clock_warp(int64_t dest)
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243 | 8156be56 | Paolo Bonzini | { |
244 | 8156be56 | Paolo Bonzini | int64_t clock = qemu_get_clock_ns(vm_clock); |
245 | 8156be56 | Paolo Bonzini | assert(qtest_enabled()); |
246 | 8156be56 | Paolo Bonzini | while (clock < dest) {
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247 | 8156be56 | Paolo Bonzini | int64_t deadline = qemu_clock_deadline(vm_clock); |
248 | 8156be56 | Paolo Bonzini | int64_t warp = MIN(dest - clock, deadline); |
249 | 8156be56 | Paolo Bonzini | qemu_icount_bias += warp; |
250 | 8156be56 | Paolo Bonzini | qemu_run_timers(vm_clock); |
251 | 8156be56 | Paolo Bonzini | clock = qemu_get_clock_ns(vm_clock); |
252 | 8156be56 | Paolo Bonzini | } |
253 | 8156be56 | Paolo Bonzini | qemu_notify_event(); |
254 | 8156be56 | Paolo Bonzini | } |
255 | 8156be56 | Paolo Bonzini | |
256 | 946fb27c | Paolo Bonzini | void qemu_clock_warp(QEMUClock *clock)
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257 | 946fb27c | Paolo Bonzini | { |
258 | 946fb27c | Paolo Bonzini | int64_t deadline; |
259 | 946fb27c | Paolo Bonzini | |
260 | 946fb27c | Paolo Bonzini | /*
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261 | 946fb27c | Paolo Bonzini | * There are too many global variables to make the "warp" behavior
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262 | 946fb27c | Paolo Bonzini | * applicable to other clocks. But a clock argument removes the
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263 | 946fb27c | Paolo Bonzini | * need for if statements all over the place.
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264 | 946fb27c | Paolo Bonzini | */
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265 | 946fb27c | Paolo Bonzini | if (clock != vm_clock || !use_icount) {
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266 | 946fb27c | Paolo Bonzini | return;
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267 | 946fb27c | Paolo Bonzini | } |
268 | 946fb27c | Paolo Bonzini | |
269 | 946fb27c | Paolo Bonzini | /*
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270 | 946fb27c | Paolo Bonzini | * If the CPUs have been sleeping, advance the vm_clock timer now. This
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271 | 946fb27c | Paolo Bonzini | * ensures that the deadline for the timer is computed correctly below.
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272 | 946fb27c | Paolo Bonzini | * This also makes sure that the insn counter is synchronized before the
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273 | 946fb27c | Paolo Bonzini | * CPU starts running, in case the CPU is woken by an event other than
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274 | 946fb27c | Paolo Bonzini | * the earliest vm_clock timer.
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275 | 946fb27c | Paolo Bonzini | */
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276 | 946fb27c | Paolo Bonzini | icount_warp_rt(NULL);
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277 | 946fb27c | Paolo Bonzini | if (!all_cpu_threads_idle() || !qemu_clock_has_timers(vm_clock)) {
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278 | 946fb27c | Paolo Bonzini | qemu_del_timer(icount_warp_timer); |
279 | 946fb27c | Paolo Bonzini | return;
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280 | 946fb27c | Paolo Bonzini | } |
281 | 946fb27c | Paolo Bonzini | |
282 | 8156be56 | Paolo Bonzini | if (qtest_enabled()) {
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283 | 8156be56 | Paolo Bonzini | /* When testing, qtest commands advance icount. */
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284 | 8156be56 | Paolo Bonzini | return;
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285 | 8156be56 | Paolo Bonzini | } |
286 | 8156be56 | Paolo Bonzini | |
287 | 946fb27c | Paolo Bonzini | vm_clock_warp_start = qemu_get_clock_ns(rt_clock); |
288 | 946fb27c | Paolo Bonzini | deadline = qemu_clock_deadline(vm_clock); |
289 | 946fb27c | Paolo Bonzini | if (deadline > 0) { |
290 | 946fb27c | Paolo Bonzini | /*
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291 | 946fb27c | Paolo Bonzini | * Ensure the vm_clock proceeds even when the virtual CPU goes to
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292 | 946fb27c | Paolo Bonzini | * sleep. Otherwise, the CPU might be waiting for a future timer
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293 | 946fb27c | Paolo Bonzini | * interrupt to wake it up, but the interrupt never comes because
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294 | 946fb27c | Paolo Bonzini | * the vCPU isn't running any insns and thus doesn't advance the
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295 | 946fb27c | Paolo Bonzini | * vm_clock.
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296 | 946fb27c | Paolo Bonzini | *
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297 | 946fb27c | Paolo Bonzini | * An extreme solution for this problem would be to never let VCPUs
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298 | 946fb27c | Paolo Bonzini | * sleep in icount mode if there is a pending vm_clock timer; rather
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299 | 946fb27c | Paolo Bonzini | * time could just advance to the next vm_clock event. Instead, we
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300 | 946fb27c | Paolo Bonzini | * do stop VCPUs and only advance vm_clock after some "real" time,
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301 | 946fb27c | Paolo Bonzini | * (related to the time left until the next event) has passed. This
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302 | 946fb27c | Paolo Bonzini | * rt_clock timer will do this. This avoids that the warps are too
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303 | 946fb27c | Paolo Bonzini | * visible externally---for example, you will not be sending network
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304 | 07f35073 | Dong Xu Wang | * packets continuously instead of every 100ms.
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305 | 946fb27c | Paolo Bonzini | */
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306 | 946fb27c | Paolo Bonzini | qemu_mod_timer(icount_warp_timer, vm_clock_warp_start + deadline); |
307 | 946fb27c | Paolo Bonzini | } else {
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308 | 946fb27c | Paolo Bonzini | qemu_notify_event(); |
309 | 946fb27c | Paolo Bonzini | } |
310 | 946fb27c | Paolo Bonzini | } |
311 | 946fb27c | Paolo Bonzini | |
312 | 946fb27c | Paolo Bonzini | static const VMStateDescription vmstate_timers = { |
313 | 946fb27c | Paolo Bonzini | .name = "timer",
|
314 | 946fb27c | Paolo Bonzini | .version_id = 2,
|
315 | 946fb27c | Paolo Bonzini | .minimum_version_id = 1,
|
316 | 946fb27c | Paolo Bonzini | .minimum_version_id_old = 1,
|
317 | 946fb27c | Paolo Bonzini | .fields = (VMStateField[]) { |
318 | 946fb27c | Paolo Bonzini | VMSTATE_INT64(cpu_ticks_offset, TimersState), |
319 | 946fb27c | Paolo Bonzini | VMSTATE_INT64(dummy, TimersState), |
320 | 946fb27c | Paolo Bonzini | VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
|
321 | 946fb27c | Paolo Bonzini | VMSTATE_END_OF_LIST() |
322 | 946fb27c | Paolo Bonzini | } |
323 | 946fb27c | Paolo Bonzini | }; |
324 | 946fb27c | Paolo Bonzini | |
325 | 946fb27c | Paolo Bonzini | void configure_icount(const char *option) |
326 | 946fb27c | Paolo Bonzini | { |
327 | 946fb27c | Paolo Bonzini | vmstate_register(NULL, 0, &vmstate_timers, &timers_state); |
328 | 946fb27c | Paolo Bonzini | if (!option) {
|
329 | 946fb27c | Paolo Bonzini | return;
|
330 | 946fb27c | Paolo Bonzini | } |
331 | 946fb27c | Paolo Bonzini | |
332 | 946fb27c | Paolo Bonzini | icount_warp_timer = qemu_new_timer_ns(rt_clock, icount_warp_rt, NULL);
|
333 | 946fb27c | Paolo Bonzini | if (strcmp(option, "auto") != 0) { |
334 | 946fb27c | Paolo Bonzini | icount_time_shift = strtol(option, NULL, 0); |
335 | 946fb27c | Paolo Bonzini | use_icount = 1;
|
336 | 946fb27c | Paolo Bonzini | return;
|
337 | 946fb27c | Paolo Bonzini | } |
338 | 946fb27c | Paolo Bonzini | |
339 | 946fb27c | Paolo Bonzini | use_icount = 2;
|
340 | 946fb27c | Paolo Bonzini | |
341 | 946fb27c | Paolo Bonzini | /* 125MIPS seems a reasonable initial guess at the guest speed.
|
342 | 946fb27c | Paolo Bonzini | It will be corrected fairly quickly anyway. */
|
343 | 946fb27c | Paolo Bonzini | icount_time_shift = 3;
|
344 | 946fb27c | Paolo Bonzini | |
345 | 946fb27c | Paolo Bonzini | /* Have both realtime and virtual time triggers for speed adjustment.
|
346 | 946fb27c | Paolo Bonzini | The realtime trigger catches emulated time passing too slowly,
|
347 | 946fb27c | Paolo Bonzini | the virtual time trigger catches emulated time passing too fast.
|
348 | 946fb27c | Paolo Bonzini | Realtime triggers occur even when idle, so use them less frequently
|
349 | 946fb27c | Paolo Bonzini | than VM triggers. */
|
350 | 946fb27c | Paolo Bonzini | icount_rt_timer = qemu_new_timer_ms(rt_clock, icount_adjust_rt, NULL);
|
351 | 946fb27c | Paolo Bonzini | qemu_mod_timer(icount_rt_timer, |
352 | 946fb27c | Paolo Bonzini | qemu_get_clock_ms(rt_clock) + 1000);
|
353 | 946fb27c | Paolo Bonzini | icount_vm_timer = qemu_new_timer_ns(vm_clock, icount_adjust_vm, NULL);
|
354 | 946fb27c | Paolo Bonzini | qemu_mod_timer(icount_vm_timer, |
355 | 946fb27c | Paolo Bonzini | qemu_get_clock_ns(vm_clock) + get_ticks_per_sec() / 10);
|
356 | 946fb27c | Paolo Bonzini | } |
357 | 946fb27c | Paolo Bonzini | |
358 | 946fb27c | Paolo Bonzini | /***********************************************************/
|
359 | 296af7c9 | Blue Swirl | void hw_error(const char *fmt, ...) |
360 | 296af7c9 | Blue Swirl | { |
361 | 296af7c9 | Blue Swirl | va_list ap; |
362 | 9349b4f9 | Andreas Färber | CPUArchState *env; |
363 | 296af7c9 | Blue Swirl | |
364 | 296af7c9 | Blue Swirl | va_start(ap, fmt); |
365 | 296af7c9 | Blue Swirl | fprintf(stderr, "qemu: hardware error: ");
|
366 | 296af7c9 | Blue Swirl | vfprintf(stderr, fmt, ap); |
367 | 296af7c9 | Blue Swirl | fprintf(stderr, "\n");
|
368 | 296af7c9 | Blue Swirl | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
369 | 296af7c9 | Blue Swirl | fprintf(stderr, "CPU #%d:\n", env->cpu_index);
|
370 | 296af7c9 | Blue Swirl | #ifdef TARGET_I386
|
371 | 296af7c9 | Blue Swirl | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU); |
372 | 296af7c9 | Blue Swirl | #else
|
373 | 296af7c9 | Blue Swirl | cpu_dump_state(env, stderr, fprintf, 0);
|
374 | 296af7c9 | Blue Swirl | #endif
|
375 | 296af7c9 | Blue Swirl | } |
376 | 296af7c9 | Blue Swirl | va_end(ap); |
377 | 296af7c9 | Blue Swirl | abort(); |
378 | 296af7c9 | Blue Swirl | } |
379 | 296af7c9 | Blue Swirl | |
380 | 296af7c9 | Blue Swirl | void cpu_synchronize_all_states(void) |
381 | 296af7c9 | Blue Swirl | { |
382 | 9349b4f9 | Andreas Färber | CPUArchState *cpu; |
383 | 296af7c9 | Blue Swirl | |
384 | 296af7c9 | Blue Swirl | for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
|
385 | 296af7c9 | Blue Swirl | cpu_synchronize_state(cpu); |
386 | 296af7c9 | Blue Swirl | } |
387 | 296af7c9 | Blue Swirl | } |
388 | 296af7c9 | Blue Swirl | |
389 | 296af7c9 | Blue Swirl | void cpu_synchronize_all_post_reset(void) |
390 | 296af7c9 | Blue Swirl | { |
391 | 9349b4f9 | Andreas Färber | CPUArchState *cpu; |
392 | 296af7c9 | Blue Swirl | |
393 | 296af7c9 | Blue Swirl | for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
|
394 | 296af7c9 | Blue Swirl | cpu_synchronize_post_reset(cpu); |
395 | 296af7c9 | Blue Swirl | } |
396 | 296af7c9 | Blue Swirl | } |
397 | 296af7c9 | Blue Swirl | |
398 | 296af7c9 | Blue Swirl | void cpu_synchronize_all_post_init(void) |
399 | 296af7c9 | Blue Swirl | { |
400 | 9349b4f9 | Andreas Färber | CPUArchState *cpu; |
401 | 296af7c9 | Blue Swirl | |
402 | 296af7c9 | Blue Swirl | for (cpu = first_cpu; cpu; cpu = cpu->next_cpu) {
|
403 | 296af7c9 | Blue Swirl | cpu_synchronize_post_init(cpu); |
404 | 296af7c9 | Blue Swirl | } |
405 | 296af7c9 | Blue Swirl | } |
406 | 296af7c9 | Blue Swirl | |
407 | 9349b4f9 | Andreas Färber | int cpu_is_stopped(CPUArchState *env)
|
408 | 3ae9501c | Marcelo Tosatti | { |
409 | 1354869c | Luiz Capitulino | return !runstate_is_running() || env->stopped;
|
410 | 3ae9501c | Marcelo Tosatti | } |
411 | 3ae9501c | Marcelo Tosatti | |
412 | 1dfb4dd9 | Luiz Capitulino | static void do_vm_stop(RunState state) |
413 | 296af7c9 | Blue Swirl | { |
414 | 1354869c | Luiz Capitulino | if (runstate_is_running()) {
|
415 | 296af7c9 | Blue Swirl | cpu_disable_ticks(); |
416 | 296af7c9 | Blue Swirl | pause_all_vcpus(); |
417 | f5bbfba1 | Luiz Capitulino | runstate_set(state); |
418 | 1dfb4dd9 | Luiz Capitulino | vm_state_notify(0, state);
|
419 | 922453bc | Stefan Hajnoczi | bdrv_drain_all(); |
420 | 55df6f33 | Michael S. Tsirkin | bdrv_flush_all(); |
421 | 296af7c9 | Blue Swirl | monitor_protocol_event(QEVENT_STOP, NULL);
|
422 | 296af7c9 | Blue Swirl | } |
423 | 296af7c9 | Blue Swirl | } |
424 | 296af7c9 | Blue Swirl | |
425 | 9349b4f9 | Andreas Färber | static int cpu_can_run(CPUArchState *env) |
426 | 296af7c9 | Blue Swirl | { |
427 | 0ab07c62 | Jan Kiszka | if (env->stop) {
|
428 | 296af7c9 | Blue Swirl | return 0; |
429 | 0ab07c62 | Jan Kiszka | } |
430 | 1354869c | Luiz Capitulino | if (env->stopped || !runstate_is_running()) {
|
431 | 296af7c9 | Blue Swirl | return 0; |
432 | 0ab07c62 | Jan Kiszka | } |
433 | 296af7c9 | Blue Swirl | return 1; |
434 | 296af7c9 | Blue Swirl | } |
435 | 296af7c9 | Blue Swirl | |
436 | 9349b4f9 | Andreas Färber | static bool cpu_thread_is_idle(CPUArchState *env) |
437 | 296af7c9 | Blue Swirl | { |
438 | 16400322 | Jan Kiszka | if (env->stop || env->queued_work_first) {
|
439 | 16400322 | Jan Kiszka | return false; |
440 | 16400322 | Jan Kiszka | } |
441 | 1354869c | Luiz Capitulino | if (env->stopped || !runstate_is_running()) {
|
442 | 16400322 | Jan Kiszka | return true; |
443 | 16400322 | Jan Kiszka | } |
444 | 56b9ead2 | Jan Kiszka | if (!env->halted || qemu_cpu_has_work(env) || kvm_irqchip_in_kernel()) {
|
445 | 16400322 | Jan Kiszka | return false; |
446 | 16400322 | Jan Kiszka | } |
447 | 16400322 | Jan Kiszka | return true; |
448 | 296af7c9 | Blue Swirl | } |
449 | 296af7c9 | Blue Swirl | |
450 | ab33fcda | Paolo Bonzini | bool all_cpu_threads_idle(void) |
451 | 296af7c9 | Blue Swirl | { |
452 | 9349b4f9 | Andreas Färber | CPUArchState *env; |
453 | 296af7c9 | Blue Swirl | |
454 | 16400322 | Jan Kiszka | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
455 | 16400322 | Jan Kiszka | if (!cpu_thread_is_idle(env)) {
|
456 | 16400322 | Jan Kiszka | return false; |
457 | 16400322 | Jan Kiszka | } |
458 | 16400322 | Jan Kiszka | } |
459 | 16400322 | Jan Kiszka | return true; |
460 | 296af7c9 | Blue Swirl | } |
461 | 296af7c9 | Blue Swirl | |
462 | 9349b4f9 | Andreas Färber | static void cpu_handle_guest_debug(CPUArchState *env) |
463 | 83f338f7 | Jan Kiszka | { |
464 | 3c638d06 | Jan Kiszka | gdb_set_stop_cpu(env); |
465 | 8cf71710 | Jan Kiszka | qemu_system_debug_request(); |
466 | 83f338f7 | Jan Kiszka | env->stopped = 1;
|
467 | 3c638d06 | Jan Kiszka | } |
468 | 3c638d06 | Jan Kiszka | |
469 | 714bd040 | Paolo Bonzini | static void cpu_signal(int sig) |
470 | 714bd040 | Paolo Bonzini | { |
471 | 714bd040 | Paolo Bonzini | if (cpu_single_env) {
|
472 | 714bd040 | Paolo Bonzini | cpu_exit(cpu_single_env); |
473 | 714bd040 | Paolo Bonzini | } |
474 | 714bd040 | Paolo Bonzini | exit_request = 1;
|
475 | 714bd040 | Paolo Bonzini | } |
476 | 714bd040 | Paolo Bonzini | |
477 | 6d9cb73c | Jan Kiszka | #ifdef CONFIG_LINUX
|
478 | 6d9cb73c | Jan Kiszka | static void sigbus_reraise(void) |
479 | 6d9cb73c | Jan Kiszka | { |
480 | 6d9cb73c | Jan Kiszka | sigset_t set; |
481 | 6d9cb73c | Jan Kiszka | struct sigaction action;
|
482 | 6d9cb73c | Jan Kiszka | |
483 | 6d9cb73c | Jan Kiszka | memset(&action, 0, sizeof(action)); |
484 | 6d9cb73c | Jan Kiszka | action.sa_handler = SIG_DFL; |
485 | 6d9cb73c | Jan Kiszka | if (!sigaction(SIGBUS, &action, NULL)) { |
486 | 6d9cb73c | Jan Kiszka | raise(SIGBUS); |
487 | 6d9cb73c | Jan Kiszka | sigemptyset(&set); |
488 | 6d9cb73c | Jan Kiszka | sigaddset(&set, SIGBUS); |
489 | 6d9cb73c | Jan Kiszka | sigprocmask(SIG_UNBLOCK, &set, NULL);
|
490 | 6d9cb73c | Jan Kiszka | } |
491 | 6d9cb73c | Jan Kiszka | perror("Failed to re-raise SIGBUS!\n");
|
492 | 6d9cb73c | Jan Kiszka | abort(); |
493 | 6d9cb73c | Jan Kiszka | } |
494 | 6d9cb73c | Jan Kiszka | |
495 | 6d9cb73c | Jan Kiszka | static void sigbus_handler(int n, struct qemu_signalfd_siginfo *siginfo, |
496 | 6d9cb73c | Jan Kiszka | void *ctx)
|
497 | 6d9cb73c | Jan Kiszka | { |
498 | 6d9cb73c | Jan Kiszka | if (kvm_on_sigbus(siginfo->ssi_code,
|
499 | 6d9cb73c | Jan Kiszka | (void *)(intptr_t)siginfo->ssi_addr)) {
|
500 | 6d9cb73c | Jan Kiszka | sigbus_reraise(); |
501 | 6d9cb73c | Jan Kiszka | } |
502 | 6d9cb73c | Jan Kiszka | } |
503 | 6d9cb73c | Jan Kiszka | |
504 | 6d9cb73c | Jan Kiszka | static void qemu_init_sigbus(void) |
505 | 6d9cb73c | Jan Kiszka | { |
506 | 6d9cb73c | Jan Kiszka | struct sigaction action;
|
507 | 6d9cb73c | Jan Kiszka | |
508 | 6d9cb73c | Jan Kiszka | memset(&action, 0, sizeof(action)); |
509 | 6d9cb73c | Jan Kiszka | action.sa_flags = SA_SIGINFO; |
510 | 6d9cb73c | Jan Kiszka | action.sa_sigaction = (void (*)(int, siginfo_t*, void*))sigbus_handler; |
511 | 6d9cb73c | Jan Kiszka | sigaction(SIGBUS, &action, NULL);
|
512 | 6d9cb73c | Jan Kiszka | |
513 | 6d9cb73c | Jan Kiszka | prctl(PR_MCE_KILL, PR_MCE_KILL_SET, PR_MCE_KILL_EARLY, 0, 0); |
514 | 6d9cb73c | Jan Kiszka | } |
515 | 6d9cb73c | Jan Kiszka | |
516 | 9349b4f9 | Andreas Färber | static void qemu_kvm_eat_signals(CPUArchState *env) |
517 | 1ab3c6c0 | Jan Kiszka | { |
518 | 1ab3c6c0 | Jan Kiszka | struct timespec ts = { 0, 0 }; |
519 | 1ab3c6c0 | Jan Kiszka | siginfo_t siginfo; |
520 | 1ab3c6c0 | Jan Kiszka | sigset_t waitset; |
521 | 1ab3c6c0 | Jan Kiszka | sigset_t chkset; |
522 | 1ab3c6c0 | Jan Kiszka | int r;
|
523 | 1ab3c6c0 | Jan Kiszka | |
524 | 1ab3c6c0 | Jan Kiszka | sigemptyset(&waitset); |
525 | 1ab3c6c0 | Jan Kiszka | sigaddset(&waitset, SIG_IPI); |
526 | 1ab3c6c0 | Jan Kiszka | sigaddset(&waitset, SIGBUS); |
527 | 1ab3c6c0 | Jan Kiszka | |
528 | 1ab3c6c0 | Jan Kiszka | do {
|
529 | 1ab3c6c0 | Jan Kiszka | r = sigtimedwait(&waitset, &siginfo, &ts); |
530 | 1ab3c6c0 | Jan Kiszka | if (r == -1 && !(errno == EAGAIN || errno == EINTR)) { |
531 | 1ab3c6c0 | Jan Kiszka | perror("sigtimedwait");
|
532 | 1ab3c6c0 | Jan Kiszka | exit(1);
|
533 | 1ab3c6c0 | Jan Kiszka | } |
534 | 1ab3c6c0 | Jan Kiszka | |
535 | 1ab3c6c0 | Jan Kiszka | switch (r) {
|
536 | 1ab3c6c0 | Jan Kiszka | case SIGBUS:
|
537 | 1ab3c6c0 | Jan Kiszka | if (kvm_on_sigbus_vcpu(env, siginfo.si_code, siginfo.si_addr)) {
|
538 | 1ab3c6c0 | Jan Kiszka | sigbus_reraise(); |
539 | 1ab3c6c0 | Jan Kiszka | } |
540 | 1ab3c6c0 | Jan Kiszka | break;
|
541 | 1ab3c6c0 | Jan Kiszka | default:
|
542 | 1ab3c6c0 | Jan Kiszka | break;
|
543 | 1ab3c6c0 | Jan Kiszka | } |
544 | 1ab3c6c0 | Jan Kiszka | |
545 | 1ab3c6c0 | Jan Kiszka | r = sigpending(&chkset); |
546 | 1ab3c6c0 | Jan Kiszka | if (r == -1) { |
547 | 1ab3c6c0 | Jan Kiszka | perror("sigpending");
|
548 | 1ab3c6c0 | Jan Kiszka | exit(1);
|
549 | 1ab3c6c0 | Jan Kiszka | } |
550 | 1ab3c6c0 | Jan Kiszka | } while (sigismember(&chkset, SIG_IPI) || sigismember(&chkset, SIGBUS));
|
551 | 1ab3c6c0 | Jan Kiszka | } |
552 | 1ab3c6c0 | Jan Kiszka | |
553 | 6d9cb73c | Jan Kiszka | #else /* !CONFIG_LINUX */ |
554 | 6d9cb73c | Jan Kiszka | |
555 | 6d9cb73c | Jan Kiszka | static void qemu_init_sigbus(void) |
556 | 6d9cb73c | Jan Kiszka | { |
557 | 6d9cb73c | Jan Kiszka | } |
558 | 1ab3c6c0 | Jan Kiszka | |
559 | 9349b4f9 | Andreas Färber | static void qemu_kvm_eat_signals(CPUArchState *env) |
560 | 1ab3c6c0 | Jan Kiszka | { |
561 | 1ab3c6c0 | Jan Kiszka | } |
562 | 6d9cb73c | Jan Kiszka | #endif /* !CONFIG_LINUX */ |
563 | 6d9cb73c | Jan Kiszka | |
564 | 296af7c9 | Blue Swirl | #ifndef _WIN32
|
565 | 55f8d6ac | Jan Kiszka | static void dummy_signal(int sig) |
566 | 55f8d6ac | Jan Kiszka | { |
567 | 55f8d6ac | Jan Kiszka | } |
568 | 55f8d6ac | Jan Kiszka | |
569 | 9349b4f9 | Andreas Färber | static void qemu_kvm_init_cpu_signals(CPUArchState *env) |
570 | 714bd040 | Paolo Bonzini | { |
571 | 714bd040 | Paolo Bonzini | int r;
|
572 | 714bd040 | Paolo Bonzini | sigset_t set; |
573 | 714bd040 | Paolo Bonzini | struct sigaction sigact;
|
574 | 714bd040 | Paolo Bonzini | |
575 | 714bd040 | Paolo Bonzini | memset(&sigact, 0, sizeof(sigact)); |
576 | 714bd040 | Paolo Bonzini | sigact.sa_handler = dummy_signal; |
577 | 714bd040 | Paolo Bonzini | sigaction(SIG_IPI, &sigact, NULL);
|
578 | 714bd040 | Paolo Bonzini | |
579 | 714bd040 | Paolo Bonzini | pthread_sigmask(SIG_BLOCK, NULL, &set);
|
580 | 714bd040 | Paolo Bonzini | sigdelset(&set, SIG_IPI); |
581 | 714bd040 | Paolo Bonzini | sigdelset(&set, SIGBUS); |
582 | 714bd040 | Paolo Bonzini | r = kvm_set_signal_mask(env, &set); |
583 | 714bd040 | Paolo Bonzini | if (r) {
|
584 | 714bd040 | Paolo Bonzini | fprintf(stderr, "kvm_set_signal_mask: %s\n", strerror(-r));
|
585 | 714bd040 | Paolo Bonzini | exit(1);
|
586 | 714bd040 | Paolo Bonzini | } |
587 | 714bd040 | Paolo Bonzini | } |
588 | 714bd040 | Paolo Bonzini | |
589 | 714bd040 | Paolo Bonzini | static void qemu_tcg_init_cpu_signals(void) |
590 | 714bd040 | Paolo Bonzini | { |
591 | 714bd040 | Paolo Bonzini | sigset_t set; |
592 | 714bd040 | Paolo Bonzini | struct sigaction sigact;
|
593 | 714bd040 | Paolo Bonzini | |
594 | 714bd040 | Paolo Bonzini | memset(&sigact, 0, sizeof(sigact)); |
595 | 714bd040 | Paolo Bonzini | sigact.sa_handler = cpu_signal; |
596 | 714bd040 | Paolo Bonzini | sigaction(SIG_IPI, &sigact, NULL);
|
597 | 714bd040 | Paolo Bonzini | |
598 | 714bd040 | Paolo Bonzini | sigemptyset(&set); |
599 | 714bd040 | Paolo Bonzini | sigaddset(&set, SIG_IPI); |
600 | 714bd040 | Paolo Bonzini | pthread_sigmask(SIG_UNBLOCK, &set, NULL);
|
601 | 714bd040 | Paolo Bonzini | } |
602 | 714bd040 | Paolo Bonzini | |
603 | 55f8d6ac | Jan Kiszka | #else /* _WIN32 */ |
604 | 9349b4f9 | Andreas Färber | static void qemu_kvm_init_cpu_signals(CPUArchState *env) |
605 | ff48eb5f | Jan Kiszka | { |
606 | 714bd040 | Paolo Bonzini | abort(); |
607 | 714bd040 | Paolo Bonzini | } |
608 | ff48eb5f | Jan Kiszka | |
609 | 714bd040 | Paolo Bonzini | static void qemu_tcg_init_cpu_signals(void) |
610 | 714bd040 | Paolo Bonzini | { |
611 | ff48eb5f | Jan Kiszka | } |
612 | 714bd040 | Paolo Bonzini | #endif /* _WIN32 */ |
613 | ff48eb5f | Jan Kiszka | |
614 | 296af7c9 | Blue Swirl | QemuMutex qemu_global_mutex; |
615 | 46daff13 | Paolo Bonzini | static QemuCond qemu_io_proceeded_cond;
|
616 | 46daff13 | Paolo Bonzini | static bool iothread_requesting_mutex; |
617 | 296af7c9 | Blue Swirl | |
618 | 296af7c9 | Blue Swirl | static QemuThread io_thread;
|
619 | 296af7c9 | Blue Swirl | |
620 | 296af7c9 | Blue Swirl | static QemuThread *tcg_cpu_thread;
|
621 | 296af7c9 | Blue Swirl | static QemuCond *tcg_halt_cond;
|
622 | 296af7c9 | Blue Swirl | |
623 | 296af7c9 | Blue Swirl | /* cpu creation */
|
624 | 296af7c9 | Blue Swirl | static QemuCond qemu_cpu_cond;
|
625 | 296af7c9 | Blue Swirl | /* system init */
|
626 | 296af7c9 | Blue Swirl | static QemuCond qemu_pause_cond;
|
627 | e82bcec2 | Marcelo Tosatti | static QemuCond qemu_work_cond;
|
628 | 296af7c9 | Blue Swirl | |
629 | d3b12f5d | Paolo Bonzini | void qemu_init_cpu_loop(void) |
630 | 296af7c9 | Blue Swirl | { |
631 | 6d9cb73c | Jan Kiszka | qemu_init_sigbus(); |
632 | ed94592b | Anthony Liguori | qemu_cond_init(&qemu_cpu_cond); |
633 | ed94592b | Anthony Liguori | qemu_cond_init(&qemu_pause_cond); |
634 | ed94592b | Anthony Liguori | qemu_cond_init(&qemu_work_cond); |
635 | 46daff13 | Paolo Bonzini | qemu_cond_init(&qemu_io_proceeded_cond); |
636 | 296af7c9 | Blue Swirl | qemu_mutex_init(&qemu_global_mutex); |
637 | 296af7c9 | Blue Swirl | |
638 | b7680cb6 | Jan Kiszka | qemu_thread_get_self(&io_thread); |
639 | 296af7c9 | Blue Swirl | } |
640 | 296af7c9 | Blue Swirl | |
641 | 9349b4f9 | Andreas Färber | void run_on_cpu(CPUArchState *env, void (*func)(void *data), void *data) |
642 | e82bcec2 | Marcelo Tosatti | { |
643 | e82bcec2 | Marcelo Tosatti | struct qemu_work_item wi;
|
644 | e82bcec2 | Marcelo Tosatti | |
645 | b7680cb6 | Jan Kiszka | if (qemu_cpu_is_self(env)) {
|
646 | e82bcec2 | Marcelo Tosatti | func(data); |
647 | e82bcec2 | Marcelo Tosatti | return;
|
648 | e82bcec2 | Marcelo Tosatti | } |
649 | e82bcec2 | Marcelo Tosatti | |
650 | e82bcec2 | Marcelo Tosatti | wi.func = func; |
651 | e82bcec2 | Marcelo Tosatti | wi.data = data; |
652 | 0ab07c62 | Jan Kiszka | if (!env->queued_work_first) {
|
653 | e82bcec2 | Marcelo Tosatti | env->queued_work_first = &wi; |
654 | 0ab07c62 | Jan Kiszka | } else {
|
655 | e82bcec2 | Marcelo Tosatti | env->queued_work_last->next = &wi; |
656 | 0ab07c62 | Jan Kiszka | } |
657 | e82bcec2 | Marcelo Tosatti | env->queued_work_last = &wi; |
658 | e82bcec2 | Marcelo Tosatti | wi.next = NULL;
|
659 | e82bcec2 | Marcelo Tosatti | wi.done = false;
|
660 | e82bcec2 | Marcelo Tosatti | |
661 | e82bcec2 | Marcelo Tosatti | qemu_cpu_kick(env); |
662 | e82bcec2 | Marcelo Tosatti | while (!wi.done) {
|
663 | 9349b4f9 | Andreas Färber | CPUArchState *self_env = cpu_single_env; |
664 | e82bcec2 | Marcelo Tosatti | |
665 | e82bcec2 | Marcelo Tosatti | qemu_cond_wait(&qemu_work_cond, &qemu_global_mutex); |
666 | e82bcec2 | Marcelo Tosatti | cpu_single_env = self_env; |
667 | e82bcec2 | Marcelo Tosatti | } |
668 | e82bcec2 | Marcelo Tosatti | } |
669 | e82bcec2 | Marcelo Tosatti | |
670 | 9349b4f9 | Andreas Färber | static void flush_queued_work(CPUArchState *env) |
671 | e82bcec2 | Marcelo Tosatti | { |
672 | e82bcec2 | Marcelo Tosatti | struct qemu_work_item *wi;
|
673 | e82bcec2 | Marcelo Tosatti | |
674 | 0ab07c62 | Jan Kiszka | if (!env->queued_work_first) {
|
675 | e82bcec2 | Marcelo Tosatti | return;
|
676 | 0ab07c62 | Jan Kiszka | } |
677 | e82bcec2 | Marcelo Tosatti | |
678 | e82bcec2 | Marcelo Tosatti | while ((wi = env->queued_work_first)) {
|
679 | e82bcec2 | Marcelo Tosatti | env->queued_work_first = wi->next; |
680 | e82bcec2 | Marcelo Tosatti | wi->func(wi->data); |
681 | e82bcec2 | Marcelo Tosatti | wi->done = true;
|
682 | e82bcec2 | Marcelo Tosatti | } |
683 | e82bcec2 | Marcelo Tosatti | env->queued_work_last = NULL;
|
684 | e82bcec2 | Marcelo Tosatti | qemu_cond_broadcast(&qemu_work_cond); |
685 | e82bcec2 | Marcelo Tosatti | } |
686 | e82bcec2 | Marcelo Tosatti | |
687 | 9349b4f9 | Andreas Färber | static void qemu_wait_io_event_common(CPUArchState *env) |
688 | 296af7c9 | Blue Swirl | { |
689 | 296af7c9 | Blue Swirl | if (env->stop) {
|
690 | 296af7c9 | Blue Swirl | env->stop = 0;
|
691 | 296af7c9 | Blue Swirl | env->stopped = 1;
|
692 | 296af7c9 | Blue Swirl | qemu_cond_signal(&qemu_pause_cond); |
693 | 296af7c9 | Blue Swirl | } |
694 | e82bcec2 | Marcelo Tosatti | flush_queued_work(env); |
695 | aa2c364b | Jan Kiszka | env->thread_kicked = false;
|
696 | 296af7c9 | Blue Swirl | } |
697 | 296af7c9 | Blue Swirl | |
698 | 6cabe1f3 | Jan Kiszka | static void qemu_tcg_wait_io_event(void) |
699 | 296af7c9 | Blue Swirl | { |
700 | 9349b4f9 | Andreas Färber | CPUArchState *env; |
701 | 6cabe1f3 | Jan Kiszka | |
702 | 16400322 | Jan Kiszka | while (all_cpu_threads_idle()) {
|
703 | ab33fcda | Paolo Bonzini | /* Start accounting real time to the virtual clock if the CPUs
|
704 | ab33fcda | Paolo Bonzini | are idle. */
|
705 | ab33fcda | Paolo Bonzini | qemu_clock_warp(vm_clock); |
706 | 9705fbb5 | Paolo Bonzini | qemu_cond_wait(tcg_halt_cond, &qemu_global_mutex); |
707 | 16400322 | Jan Kiszka | } |
708 | 296af7c9 | Blue Swirl | |
709 | 46daff13 | Paolo Bonzini | while (iothread_requesting_mutex) {
|
710 | 46daff13 | Paolo Bonzini | qemu_cond_wait(&qemu_io_proceeded_cond, &qemu_global_mutex); |
711 | 46daff13 | Paolo Bonzini | } |
712 | 6cabe1f3 | Jan Kiszka | |
713 | 6cabe1f3 | Jan Kiszka | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
714 | 6cabe1f3 | Jan Kiszka | qemu_wait_io_event_common(env); |
715 | 6cabe1f3 | Jan Kiszka | } |
716 | 296af7c9 | Blue Swirl | } |
717 | 296af7c9 | Blue Swirl | |
718 | 9349b4f9 | Andreas Färber | static void qemu_kvm_wait_io_event(CPUArchState *env) |
719 | 296af7c9 | Blue Swirl | { |
720 | 16400322 | Jan Kiszka | while (cpu_thread_is_idle(env)) {
|
721 | 9705fbb5 | Paolo Bonzini | qemu_cond_wait(env->halt_cond, &qemu_global_mutex); |
722 | 16400322 | Jan Kiszka | } |
723 | 296af7c9 | Blue Swirl | |
724 | 5db5bdac | Jan Kiszka | qemu_kvm_eat_signals(env); |
725 | 296af7c9 | Blue Swirl | qemu_wait_io_event_common(env); |
726 | 296af7c9 | Blue Swirl | } |
727 | 296af7c9 | Blue Swirl | |
728 | 7e97cd88 | Jan Kiszka | static void *qemu_kvm_cpu_thread_fn(void *arg) |
729 | 296af7c9 | Blue Swirl | { |
730 | 9349b4f9 | Andreas Färber | CPUArchState *env = arg; |
731 | 84b4915d | Jan Kiszka | int r;
|
732 | 296af7c9 | Blue Swirl | |
733 | 6164e6d6 | Marcelo Tosatti | qemu_mutex_lock(&qemu_global_mutex); |
734 | b7680cb6 | Jan Kiszka | qemu_thread_get_self(env->thread); |
735 | dc7a09cf | Jan Kiszka | env->thread_id = qemu_get_thread_id(); |
736 | e479c207 | Jan Kiszka | cpu_single_env = env; |
737 | 296af7c9 | Blue Swirl | |
738 | 84b4915d | Jan Kiszka | r = kvm_init_vcpu(env); |
739 | 84b4915d | Jan Kiszka | if (r < 0) { |
740 | 84b4915d | Jan Kiszka | fprintf(stderr, "kvm_init_vcpu failed: %s\n", strerror(-r));
|
741 | 84b4915d | Jan Kiszka | exit(1);
|
742 | 84b4915d | Jan Kiszka | } |
743 | 296af7c9 | Blue Swirl | |
744 | 55f8d6ac | Jan Kiszka | qemu_kvm_init_cpu_signals(env); |
745 | 296af7c9 | Blue Swirl | |
746 | 296af7c9 | Blue Swirl | /* signal CPU creation */
|
747 | 296af7c9 | Blue Swirl | env->created = 1;
|
748 | 296af7c9 | Blue Swirl | qemu_cond_signal(&qemu_cpu_cond); |
749 | 296af7c9 | Blue Swirl | |
750 | 296af7c9 | Blue Swirl | while (1) { |
751 | 0ab07c62 | Jan Kiszka | if (cpu_can_run(env)) {
|
752 | 6792a57b | Jan Kiszka | r = kvm_cpu_exec(env); |
753 | 83f338f7 | Jan Kiszka | if (r == EXCP_DEBUG) {
|
754 | 1009d2ed | Jan Kiszka | cpu_handle_guest_debug(env); |
755 | 83f338f7 | Jan Kiszka | } |
756 | 0ab07c62 | Jan Kiszka | } |
757 | 296af7c9 | Blue Swirl | qemu_kvm_wait_io_event(env); |
758 | 296af7c9 | Blue Swirl | } |
759 | 296af7c9 | Blue Swirl | |
760 | 296af7c9 | Blue Swirl | return NULL; |
761 | 296af7c9 | Blue Swirl | } |
762 | 296af7c9 | Blue Swirl | |
763 | c7f0f3b1 | Anthony Liguori | static void *qemu_dummy_cpu_thread_fn(void *arg) |
764 | c7f0f3b1 | Anthony Liguori | { |
765 | c7f0f3b1 | Anthony Liguori | #ifdef _WIN32
|
766 | c7f0f3b1 | Anthony Liguori | fprintf(stderr, "qtest is not supported under Windows\n");
|
767 | c7f0f3b1 | Anthony Liguori | exit(1);
|
768 | c7f0f3b1 | Anthony Liguori | #else
|
769 | c7f0f3b1 | Anthony Liguori | CPUArchState *env = arg; |
770 | c7f0f3b1 | Anthony Liguori | sigset_t waitset; |
771 | c7f0f3b1 | Anthony Liguori | int r;
|
772 | c7f0f3b1 | Anthony Liguori | |
773 | c7f0f3b1 | Anthony Liguori | qemu_mutex_lock_iothread(); |
774 | c7f0f3b1 | Anthony Liguori | qemu_thread_get_self(env->thread); |
775 | c7f0f3b1 | Anthony Liguori | env->thread_id = qemu_get_thread_id(); |
776 | c7f0f3b1 | Anthony Liguori | |
777 | c7f0f3b1 | Anthony Liguori | sigemptyset(&waitset); |
778 | c7f0f3b1 | Anthony Liguori | sigaddset(&waitset, SIG_IPI); |
779 | c7f0f3b1 | Anthony Liguori | |
780 | c7f0f3b1 | Anthony Liguori | /* signal CPU creation */
|
781 | c7f0f3b1 | Anthony Liguori | env->created = 1;
|
782 | c7f0f3b1 | Anthony Liguori | qemu_cond_signal(&qemu_cpu_cond); |
783 | c7f0f3b1 | Anthony Liguori | |
784 | c7f0f3b1 | Anthony Liguori | cpu_single_env = env; |
785 | c7f0f3b1 | Anthony Liguori | while (1) { |
786 | c7f0f3b1 | Anthony Liguori | cpu_single_env = NULL;
|
787 | c7f0f3b1 | Anthony Liguori | qemu_mutex_unlock_iothread(); |
788 | c7f0f3b1 | Anthony Liguori | do {
|
789 | c7f0f3b1 | Anthony Liguori | int sig;
|
790 | c7f0f3b1 | Anthony Liguori | r = sigwait(&waitset, &sig); |
791 | c7f0f3b1 | Anthony Liguori | } while (r == -1 && (errno == EAGAIN || errno == EINTR)); |
792 | c7f0f3b1 | Anthony Liguori | if (r == -1) { |
793 | c7f0f3b1 | Anthony Liguori | perror("sigwait");
|
794 | c7f0f3b1 | Anthony Liguori | exit(1);
|
795 | c7f0f3b1 | Anthony Liguori | } |
796 | c7f0f3b1 | Anthony Liguori | qemu_mutex_lock_iothread(); |
797 | c7f0f3b1 | Anthony Liguori | cpu_single_env = env; |
798 | c7f0f3b1 | Anthony Liguori | qemu_wait_io_event_common(env); |
799 | c7f0f3b1 | Anthony Liguori | } |
800 | c7f0f3b1 | Anthony Liguori | |
801 | c7f0f3b1 | Anthony Liguori | return NULL; |
802 | c7f0f3b1 | Anthony Liguori | #endif
|
803 | c7f0f3b1 | Anthony Liguori | } |
804 | c7f0f3b1 | Anthony Liguori | |
805 | bdb7ca67 | Jan Kiszka | static void tcg_exec_all(void); |
806 | bdb7ca67 | Jan Kiszka | |
807 | 7e97cd88 | Jan Kiszka | static void *qemu_tcg_cpu_thread_fn(void *arg) |
808 | 296af7c9 | Blue Swirl | { |
809 | 9349b4f9 | Andreas Färber | CPUArchState *env = arg; |
810 | 296af7c9 | Blue Swirl | |
811 | 55f8d6ac | Jan Kiszka | qemu_tcg_init_cpu_signals(); |
812 | b7680cb6 | Jan Kiszka | qemu_thread_get_self(env->thread); |
813 | 296af7c9 | Blue Swirl | |
814 | 296af7c9 | Blue Swirl | /* signal CPU creation */
|
815 | 296af7c9 | Blue Swirl | qemu_mutex_lock(&qemu_global_mutex); |
816 | 0ab07c62 | Jan Kiszka | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
817 | dc7a09cf | Jan Kiszka | env->thread_id = qemu_get_thread_id(); |
818 | 296af7c9 | Blue Swirl | env->created = 1;
|
819 | 0ab07c62 | Jan Kiszka | } |
820 | 296af7c9 | Blue Swirl | qemu_cond_signal(&qemu_cpu_cond); |
821 | 296af7c9 | Blue Swirl | |
822 | fa7d1867 | Jan Kiszka | /* wait for initial kick-off after machine start */
|
823 | fa7d1867 | Jan Kiszka | while (first_cpu->stopped) {
|
824 | fa7d1867 | Jan Kiszka | qemu_cond_wait(tcg_halt_cond, &qemu_global_mutex); |
825 | 8e564b4e | Jan Kiszka | |
826 | 8e564b4e | Jan Kiszka | /* process any pending work */
|
827 | 8e564b4e | Jan Kiszka | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
828 | 8e564b4e | Jan Kiszka | qemu_wait_io_event_common(env); |
829 | 8e564b4e | Jan Kiszka | } |
830 | 0ab07c62 | Jan Kiszka | } |
831 | 296af7c9 | Blue Swirl | |
832 | 296af7c9 | Blue Swirl | while (1) { |
833 | bdb7ca67 | Jan Kiszka | tcg_exec_all(); |
834 | 946fb27c | Paolo Bonzini | if (use_icount && qemu_clock_deadline(vm_clock) <= 0) { |
835 | 3b2319a3 | Paolo Bonzini | qemu_notify_event(); |
836 | 3b2319a3 | Paolo Bonzini | } |
837 | 6cabe1f3 | Jan Kiszka | qemu_tcg_wait_io_event(); |
838 | 296af7c9 | Blue Swirl | } |
839 | 296af7c9 | Blue Swirl | |
840 | 296af7c9 | Blue Swirl | return NULL; |
841 | 296af7c9 | Blue Swirl | } |
842 | 296af7c9 | Blue Swirl | |
843 | 9349b4f9 | Andreas Färber | static void qemu_cpu_kick_thread(CPUArchState *env) |
844 | cc015e9a | Paolo Bonzini | { |
845 | cc015e9a | Paolo Bonzini | #ifndef _WIN32
|
846 | cc015e9a | Paolo Bonzini | int err;
|
847 | cc015e9a | Paolo Bonzini | |
848 | cc015e9a | Paolo Bonzini | err = pthread_kill(env->thread->thread, SIG_IPI); |
849 | cc015e9a | Paolo Bonzini | if (err) {
|
850 | cc015e9a | Paolo Bonzini | fprintf(stderr, "qemu:%s: %s", __func__, strerror(err));
|
851 | cc015e9a | Paolo Bonzini | exit(1);
|
852 | cc015e9a | Paolo Bonzini | } |
853 | cc015e9a | Paolo Bonzini | #else /* _WIN32 */ |
854 | cc015e9a | Paolo Bonzini | if (!qemu_cpu_is_self(env)) {
|
855 | 1ecf47bf | Paolo Bonzini | SuspendThread(env->hThread); |
856 | cc015e9a | Paolo Bonzini | cpu_signal(0);
|
857 | 1ecf47bf | Paolo Bonzini | ResumeThread(env->hThread); |
858 | cc015e9a | Paolo Bonzini | } |
859 | cc015e9a | Paolo Bonzini | #endif
|
860 | cc015e9a | Paolo Bonzini | } |
861 | cc015e9a | Paolo Bonzini | |
862 | 296af7c9 | Blue Swirl | void qemu_cpu_kick(void *_env) |
863 | 296af7c9 | Blue Swirl | { |
864 | 9349b4f9 | Andreas Färber | CPUArchState *env = _env; |
865 | 296af7c9 | Blue Swirl | |
866 | 296af7c9 | Blue Swirl | qemu_cond_broadcast(env->halt_cond); |
867 | c7f0f3b1 | Anthony Liguori | if (!tcg_enabled() && !env->thread_kicked) {
|
868 | cc015e9a | Paolo Bonzini | qemu_cpu_kick_thread(env); |
869 | aa2c364b | Jan Kiszka | env->thread_kicked = true;
|
870 | aa2c364b | Jan Kiszka | } |
871 | 296af7c9 | Blue Swirl | } |
872 | 296af7c9 | Blue Swirl | |
873 | 46d62fac | Jan Kiszka | void qemu_cpu_kick_self(void) |
874 | 296af7c9 | Blue Swirl | { |
875 | b55c22c6 | Paolo Bonzini | #ifndef _WIN32
|
876 | 46d62fac | Jan Kiszka | assert(cpu_single_env); |
877 | 296af7c9 | Blue Swirl | |
878 | 46d62fac | Jan Kiszka | if (!cpu_single_env->thread_kicked) {
|
879 | cc015e9a | Paolo Bonzini | qemu_cpu_kick_thread(cpu_single_env); |
880 | 46d62fac | Jan Kiszka | cpu_single_env->thread_kicked = true;
|
881 | 296af7c9 | Blue Swirl | } |
882 | b55c22c6 | Paolo Bonzini | #else
|
883 | b55c22c6 | Paolo Bonzini | abort(); |
884 | b55c22c6 | Paolo Bonzini | #endif
|
885 | 296af7c9 | Blue Swirl | } |
886 | 296af7c9 | Blue Swirl | |
887 | b7680cb6 | Jan Kiszka | int qemu_cpu_is_self(void *_env) |
888 | 296af7c9 | Blue Swirl | { |
889 | 9349b4f9 | Andreas Färber | CPUArchState *env = _env; |
890 | a8486bc9 | Marcelo Tosatti | |
891 | b7680cb6 | Jan Kiszka | return qemu_thread_is_self(env->thread);
|
892 | 296af7c9 | Blue Swirl | } |
893 | 296af7c9 | Blue Swirl | |
894 | 296af7c9 | Blue Swirl | void qemu_mutex_lock_iothread(void) |
895 | 296af7c9 | Blue Swirl | { |
896 | c7f0f3b1 | Anthony Liguori | if (!tcg_enabled()) {
|
897 | 296af7c9 | Blue Swirl | qemu_mutex_lock(&qemu_global_mutex); |
898 | 1a28cac3 | Marcelo Tosatti | } else {
|
899 | 46daff13 | Paolo Bonzini | iothread_requesting_mutex = true;
|
900 | 1a28cac3 | Marcelo Tosatti | if (qemu_mutex_trylock(&qemu_global_mutex)) {
|
901 | cc015e9a | Paolo Bonzini | qemu_cpu_kick_thread(first_cpu); |
902 | 1a28cac3 | Marcelo Tosatti | qemu_mutex_lock(&qemu_global_mutex); |
903 | 1a28cac3 | Marcelo Tosatti | } |
904 | 46daff13 | Paolo Bonzini | iothread_requesting_mutex = false;
|
905 | 46daff13 | Paolo Bonzini | qemu_cond_broadcast(&qemu_io_proceeded_cond); |
906 | 1a28cac3 | Marcelo Tosatti | } |
907 | 296af7c9 | Blue Swirl | } |
908 | 296af7c9 | Blue Swirl | |
909 | 296af7c9 | Blue Swirl | void qemu_mutex_unlock_iothread(void) |
910 | 296af7c9 | Blue Swirl | { |
911 | 296af7c9 | Blue Swirl | qemu_mutex_unlock(&qemu_global_mutex); |
912 | 296af7c9 | Blue Swirl | } |
913 | 296af7c9 | Blue Swirl | |
914 | 296af7c9 | Blue Swirl | static int all_vcpus_paused(void) |
915 | 296af7c9 | Blue Swirl | { |
916 | 9349b4f9 | Andreas Färber | CPUArchState *penv = first_cpu; |
917 | 296af7c9 | Blue Swirl | |
918 | 296af7c9 | Blue Swirl | while (penv) {
|
919 | 0ab07c62 | Jan Kiszka | if (!penv->stopped) {
|
920 | 296af7c9 | Blue Swirl | return 0; |
921 | 0ab07c62 | Jan Kiszka | } |
922 | 5207a5e0 | Jan Kiszka | penv = penv->next_cpu; |
923 | 296af7c9 | Blue Swirl | } |
924 | 296af7c9 | Blue Swirl | |
925 | 296af7c9 | Blue Swirl | return 1; |
926 | 296af7c9 | Blue Swirl | } |
927 | 296af7c9 | Blue Swirl | |
928 | 296af7c9 | Blue Swirl | void pause_all_vcpus(void) |
929 | 296af7c9 | Blue Swirl | { |
930 | 9349b4f9 | Andreas Färber | CPUArchState *penv = first_cpu; |
931 | 296af7c9 | Blue Swirl | |
932 | a5c57d64 | Paolo Bonzini | qemu_clock_enable(vm_clock, false);
|
933 | 296af7c9 | Blue Swirl | while (penv) {
|
934 | 296af7c9 | Blue Swirl | penv->stop = 1;
|
935 | 296af7c9 | Blue Swirl | qemu_cpu_kick(penv); |
936 | 5207a5e0 | Jan Kiszka | penv = penv->next_cpu; |
937 | 296af7c9 | Blue Swirl | } |
938 | 296af7c9 | Blue Swirl | |
939 | d798e974 | Jan Kiszka | if (!qemu_thread_is_self(&io_thread)) {
|
940 | d798e974 | Jan Kiszka | cpu_stop_current(); |
941 | d798e974 | Jan Kiszka | if (!kvm_enabled()) {
|
942 | d798e974 | Jan Kiszka | while (penv) {
|
943 | d798e974 | Jan Kiszka | penv->stop = 0;
|
944 | d798e974 | Jan Kiszka | penv->stopped = 1;
|
945 | d798e974 | Jan Kiszka | penv = penv->next_cpu; |
946 | d798e974 | Jan Kiszka | } |
947 | d798e974 | Jan Kiszka | return;
|
948 | d798e974 | Jan Kiszka | } |
949 | d798e974 | Jan Kiszka | } |
950 | d798e974 | Jan Kiszka | |
951 | 296af7c9 | Blue Swirl | while (!all_vcpus_paused()) {
|
952 | be7d6c57 | Paolo Bonzini | qemu_cond_wait(&qemu_pause_cond, &qemu_global_mutex); |
953 | 296af7c9 | Blue Swirl | penv = first_cpu; |
954 | 296af7c9 | Blue Swirl | while (penv) {
|
955 | 1fbb22e5 | Marcelo Tosatti | qemu_cpu_kick(penv); |
956 | 5207a5e0 | Jan Kiszka | penv = penv->next_cpu; |
957 | 296af7c9 | Blue Swirl | } |
958 | 296af7c9 | Blue Swirl | } |
959 | 296af7c9 | Blue Swirl | } |
960 | 296af7c9 | Blue Swirl | |
961 | 296af7c9 | Blue Swirl | void resume_all_vcpus(void) |
962 | 296af7c9 | Blue Swirl | { |
963 | 9349b4f9 | Andreas Färber | CPUArchState *penv = first_cpu; |
964 | 296af7c9 | Blue Swirl | |
965 | 47113ab6 | Wen Congyang | qemu_clock_enable(vm_clock, true);
|
966 | 296af7c9 | Blue Swirl | while (penv) {
|
967 | 296af7c9 | Blue Swirl | penv->stop = 0;
|
968 | 296af7c9 | Blue Swirl | penv->stopped = 0;
|
969 | 296af7c9 | Blue Swirl | qemu_cpu_kick(penv); |
970 | 5207a5e0 | Jan Kiszka | penv = penv->next_cpu; |
971 | 296af7c9 | Blue Swirl | } |
972 | 296af7c9 | Blue Swirl | } |
973 | 296af7c9 | Blue Swirl | |
974 | 7e97cd88 | Jan Kiszka | static void qemu_tcg_init_vcpu(void *_env) |
975 | 296af7c9 | Blue Swirl | { |
976 | 9349b4f9 | Andreas Färber | CPUArchState *env = _env; |
977 | 0ab07c62 | Jan Kiszka | |
978 | 296af7c9 | Blue Swirl | /* share a single thread for all cpus with TCG */
|
979 | 296af7c9 | Blue Swirl | if (!tcg_cpu_thread) {
|
980 | 7267c094 | Anthony Liguori | env->thread = g_malloc0(sizeof(QemuThread));
|
981 | 7267c094 | Anthony Liguori | env->halt_cond = g_malloc0(sizeof(QemuCond));
|
982 | 296af7c9 | Blue Swirl | qemu_cond_init(env->halt_cond); |
983 | fa7d1867 | Jan Kiszka | tcg_halt_cond = env->halt_cond; |
984 | cf218714 | Jan Kiszka | qemu_thread_create(env->thread, qemu_tcg_cpu_thread_fn, env, |
985 | 1ecf47bf | Paolo Bonzini | QEMU_THREAD_JOINABLE); |
986 | 1ecf47bf | Paolo Bonzini | #ifdef _WIN32
|
987 | 1ecf47bf | Paolo Bonzini | env->hThread = qemu_thread_get_handle(env->thread); |
988 | 1ecf47bf | Paolo Bonzini | #endif
|
989 | 0ab07c62 | Jan Kiszka | while (env->created == 0) { |
990 | 18a85728 | Paolo Bonzini | qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex); |
991 | 0ab07c62 | Jan Kiszka | } |
992 | 296af7c9 | Blue Swirl | tcg_cpu_thread = env->thread; |
993 | 296af7c9 | Blue Swirl | } else {
|
994 | 296af7c9 | Blue Swirl | env->thread = tcg_cpu_thread; |
995 | 296af7c9 | Blue Swirl | env->halt_cond = tcg_halt_cond; |
996 | 296af7c9 | Blue Swirl | } |
997 | 296af7c9 | Blue Swirl | } |
998 | 296af7c9 | Blue Swirl | |
999 | 9349b4f9 | Andreas Färber | static void qemu_kvm_start_vcpu(CPUArchState *env) |
1000 | 296af7c9 | Blue Swirl | { |
1001 | 7267c094 | Anthony Liguori | env->thread = g_malloc0(sizeof(QemuThread));
|
1002 | 7267c094 | Anthony Liguori | env->halt_cond = g_malloc0(sizeof(QemuCond));
|
1003 | 296af7c9 | Blue Swirl | qemu_cond_init(env->halt_cond); |
1004 | cf218714 | Jan Kiszka | qemu_thread_create(env->thread, qemu_kvm_cpu_thread_fn, env, |
1005 | 1ecf47bf | Paolo Bonzini | QEMU_THREAD_JOINABLE); |
1006 | 0ab07c62 | Jan Kiszka | while (env->created == 0) { |
1007 | 18a85728 | Paolo Bonzini | qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex); |
1008 | 0ab07c62 | Jan Kiszka | } |
1009 | 296af7c9 | Blue Swirl | } |
1010 | 296af7c9 | Blue Swirl | |
1011 | c7f0f3b1 | Anthony Liguori | static void qemu_dummy_start_vcpu(CPUArchState *env) |
1012 | c7f0f3b1 | Anthony Liguori | { |
1013 | c7f0f3b1 | Anthony Liguori | env->thread = g_malloc0(sizeof(QemuThread));
|
1014 | c7f0f3b1 | Anthony Liguori | env->halt_cond = g_malloc0(sizeof(QemuCond));
|
1015 | c7f0f3b1 | Anthony Liguori | qemu_cond_init(env->halt_cond); |
1016 | c7f0f3b1 | Anthony Liguori | qemu_thread_create(env->thread, qemu_dummy_cpu_thread_fn, env, |
1017 | c7f0f3b1 | Anthony Liguori | QEMU_THREAD_JOINABLE); |
1018 | c7f0f3b1 | Anthony Liguori | while (env->created == 0) { |
1019 | c7f0f3b1 | Anthony Liguori | qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex); |
1020 | c7f0f3b1 | Anthony Liguori | } |
1021 | c7f0f3b1 | Anthony Liguori | } |
1022 | c7f0f3b1 | Anthony Liguori | |
1023 | 296af7c9 | Blue Swirl | void qemu_init_vcpu(void *_env) |
1024 | 296af7c9 | Blue Swirl | { |
1025 | 9349b4f9 | Andreas Färber | CPUArchState *env = _env; |
1026 | 296af7c9 | Blue Swirl | |
1027 | 296af7c9 | Blue Swirl | env->nr_cores = smp_cores; |
1028 | 296af7c9 | Blue Swirl | env->nr_threads = smp_threads; |
1029 | fa7d1867 | Jan Kiszka | env->stopped = 1;
|
1030 | 0ab07c62 | Jan Kiszka | if (kvm_enabled()) {
|
1031 | 7e97cd88 | Jan Kiszka | qemu_kvm_start_vcpu(env); |
1032 | c7f0f3b1 | Anthony Liguori | } else if (tcg_enabled()) { |
1033 | 7e97cd88 | Jan Kiszka | qemu_tcg_init_vcpu(env); |
1034 | c7f0f3b1 | Anthony Liguori | } else {
|
1035 | c7f0f3b1 | Anthony Liguori | qemu_dummy_start_vcpu(env); |
1036 | 0ab07c62 | Jan Kiszka | } |
1037 | 296af7c9 | Blue Swirl | } |
1038 | 296af7c9 | Blue Swirl | |
1039 | b4a3d965 | Jan Kiszka | void cpu_stop_current(void) |
1040 | 296af7c9 | Blue Swirl | { |
1041 | b4a3d965 | Jan Kiszka | if (cpu_single_env) {
|
1042 | 67bb172f | Paolo Bonzini | cpu_single_env->stop = 0;
|
1043 | b4a3d965 | Jan Kiszka | cpu_single_env->stopped = 1;
|
1044 | b4a3d965 | Jan Kiszka | cpu_exit(cpu_single_env); |
1045 | 67bb172f | Paolo Bonzini | qemu_cond_signal(&qemu_pause_cond); |
1046 | b4a3d965 | Jan Kiszka | } |
1047 | 296af7c9 | Blue Swirl | } |
1048 | 296af7c9 | Blue Swirl | |
1049 | 1dfb4dd9 | Luiz Capitulino | void vm_stop(RunState state)
|
1050 | 296af7c9 | Blue Swirl | { |
1051 | b7680cb6 | Jan Kiszka | if (!qemu_thread_is_self(&io_thread)) {
|
1052 | 1dfb4dd9 | Luiz Capitulino | qemu_system_vmstop_request(state); |
1053 | 296af7c9 | Blue Swirl | /*
|
1054 | 296af7c9 | Blue Swirl | * FIXME: should not return to device code in case
|
1055 | 296af7c9 | Blue Swirl | * vm_stop() has been requested.
|
1056 | 296af7c9 | Blue Swirl | */
|
1057 | b4a3d965 | Jan Kiszka | cpu_stop_current(); |
1058 | 296af7c9 | Blue Swirl | return;
|
1059 | 296af7c9 | Blue Swirl | } |
1060 | 1dfb4dd9 | Luiz Capitulino | do_vm_stop(state); |
1061 | 296af7c9 | Blue Swirl | } |
1062 | 296af7c9 | Blue Swirl | |
1063 | 8a9236f1 | Luiz Capitulino | /* does a state transition even if the VM is already stopped,
|
1064 | 8a9236f1 | Luiz Capitulino | current state is forgotten forever */
|
1065 | 8a9236f1 | Luiz Capitulino | void vm_stop_force_state(RunState state)
|
1066 | 8a9236f1 | Luiz Capitulino | { |
1067 | 8a9236f1 | Luiz Capitulino | if (runstate_is_running()) {
|
1068 | 8a9236f1 | Luiz Capitulino | vm_stop(state); |
1069 | 8a9236f1 | Luiz Capitulino | } else {
|
1070 | 8a9236f1 | Luiz Capitulino | runstate_set(state); |
1071 | 8a9236f1 | Luiz Capitulino | } |
1072 | 8a9236f1 | Luiz Capitulino | } |
1073 | 8a9236f1 | Luiz Capitulino | |
1074 | 9349b4f9 | Andreas Färber | static int tcg_cpu_exec(CPUArchState *env) |
1075 | 296af7c9 | Blue Swirl | { |
1076 | 296af7c9 | Blue Swirl | int ret;
|
1077 | 296af7c9 | Blue Swirl | #ifdef CONFIG_PROFILER
|
1078 | 296af7c9 | Blue Swirl | int64_t ti; |
1079 | 296af7c9 | Blue Swirl | #endif
|
1080 | 296af7c9 | Blue Swirl | |
1081 | 296af7c9 | Blue Swirl | #ifdef CONFIG_PROFILER
|
1082 | 296af7c9 | Blue Swirl | ti = profile_getclock(); |
1083 | 296af7c9 | Blue Swirl | #endif
|
1084 | 296af7c9 | Blue Swirl | if (use_icount) {
|
1085 | 296af7c9 | Blue Swirl | int64_t count; |
1086 | 296af7c9 | Blue Swirl | int decr;
|
1087 | 296af7c9 | Blue Swirl | qemu_icount -= (env->icount_decr.u16.low + env->icount_extra); |
1088 | 296af7c9 | Blue Swirl | env->icount_decr.u16.low = 0;
|
1089 | 296af7c9 | Blue Swirl | env->icount_extra = 0;
|
1090 | 946fb27c | Paolo Bonzini | count = qemu_icount_round(qemu_clock_deadline(vm_clock)); |
1091 | 296af7c9 | Blue Swirl | qemu_icount += count; |
1092 | 296af7c9 | Blue Swirl | decr = (count > 0xffff) ? 0xffff : count; |
1093 | 296af7c9 | Blue Swirl | count -= decr; |
1094 | 296af7c9 | Blue Swirl | env->icount_decr.u16.low = decr; |
1095 | 296af7c9 | Blue Swirl | env->icount_extra = count; |
1096 | 296af7c9 | Blue Swirl | } |
1097 | 296af7c9 | Blue Swirl | ret = cpu_exec(env); |
1098 | 296af7c9 | Blue Swirl | #ifdef CONFIG_PROFILER
|
1099 | 296af7c9 | Blue Swirl | qemu_time += profile_getclock() - ti; |
1100 | 296af7c9 | Blue Swirl | #endif
|
1101 | 296af7c9 | Blue Swirl | if (use_icount) {
|
1102 | 296af7c9 | Blue Swirl | /* Fold pending instructions back into the
|
1103 | 296af7c9 | Blue Swirl | instruction counter, and clear the interrupt flag. */
|
1104 | 296af7c9 | Blue Swirl | qemu_icount -= (env->icount_decr.u16.low |
1105 | 296af7c9 | Blue Swirl | + env->icount_extra); |
1106 | 296af7c9 | Blue Swirl | env->icount_decr.u32 = 0;
|
1107 | 296af7c9 | Blue Swirl | env->icount_extra = 0;
|
1108 | 296af7c9 | Blue Swirl | } |
1109 | 296af7c9 | Blue Swirl | return ret;
|
1110 | 296af7c9 | Blue Swirl | } |
1111 | 296af7c9 | Blue Swirl | |
1112 | bdb7ca67 | Jan Kiszka | static void tcg_exec_all(void) |
1113 | 296af7c9 | Blue Swirl | { |
1114 | 9a36085b | Jan Kiszka | int r;
|
1115 | 9a36085b | Jan Kiszka | |
1116 | ab33fcda | Paolo Bonzini | /* Account partial waits to the vm_clock. */
|
1117 | ab33fcda | Paolo Bonzini | qemu_clock_warp(vm_clock); |
1118 | ab33fcda | Paolo Bonzini | |
1119 | 0ab07c62 | Jan Kiszka | if (next_cpu == NULL) { |
1120 | 296af7c9 | Blue Swirl | next_cpu = first_cpu; |
1121 | 0ab07c62 | Jan Kiszka | } |
1122 | c629a4bc | Jan Kiszka | for (; next_cpu != NULL && !exit_request; next_cpu = next_cpu->next_cpu) { |
1123 | 9349b4f9 | Andreas Färber | CPUArchState *env = next_cpu; |
1124 | 296af7c9 | Blue Swirl | |
1125 | 296af7c9 | Blue Swirl | qemu_clock_enable(vm_clock, |
1126 | 345f4426 | Jan Kiszka | (env->singlestep_enabled & SSTEP_NOTIMER) == 0);
|
1127 | 296af7c9 | Blue Swirl | |
1128 | 3c638d06 | Jan Kiszka | if (cpu_can_run(env)) {
|
1129 | bdb7ca67 | Jan Kiszka | r = tcg_cpu_exec(env); |
1130 | 9a36085b | Jan Kiszka | if (r == EXCP_DEBUG) {
|
1131 | 1009d2ed | Jan Kiszka | cpu_handle_guest_debug(env); |
1132 | 3c638d06 | Jan Kiszka | break;
|
1133 | 3c638d06 | Jan Kiszka | } |
1134 | df646dfd | Paolo Bonzini | } else if (env->stop || env->stopped) { |
1135 | 296af7c9 | Blue Swirl | break;
|
1136 | 296af7c9 | Blue Swirl | } |
1137 | 296af7c9 | Blue Swirl | } |
1138 | c629a4bc | Jan Kiszka | exit_request = 0;
|
1139 | 296af7c9 | Blue Swirl | } |
1140 | 296af7c9 | Blue Swirl | |
1141 | 296af7c9 | Blue Swirl | void set_numa_modes(void) |
1142 | 296af7c9 | Blue Swirl | { |
1143 | 9349b4f9 | Andreas Färber | CPUArchState *env; |
1144 | 296af7c9 | Blue Swirl | int i;
|
1145 | 296af7c9 | Blue Swirl | |
1146 | 296af7c9 | Blue Swirl | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
1147 | 296af7c9 | Blue Swirl | for (i = 0; i < nb_numa_nodes; i++) { |
1148 | 296af7c9 | Blue Swirl | if (node_cpumask[i] & (1 << env->cpu_index)) { |
1149 | 296af7c9 | Blue Swirl | env->numa_node = i; |
1150 | 296af7c9 | Blue Swirl | } |
1151 | 296af7c9 | Blue Swirl | } |
1152 | 296af7c9 | Blue Swirl | } |
1153 | 296af7c9 | Blue Swirl | } |
1154 | 296af7c9 | Blue Swirl | |
1155 | 296af7c9 | Blue Swirl | void set_cpu_log(const char *optarg) |
1156 | 296af7c9 | Blue Swirl | { |
1157 | 296af7c9 | Blue Swirl | int mask;
|
1158 | 296af7c9 | Blue Swirl | const CPULogItem *item;
|
1159 | 296af7c9 | Blue Swirl | |
1160 | 296af7c9 | Blue Swirl | mask = cpu_str_to_log_mask(optarg); |
1161 | 296af7c9 | Blue Swirl | if (!mask) {
|
1162 | 296af7c9 | Blue Swirl | printf("Log items (comma separated):\n");
|
1163 | 296af7c9 | Blue Swirl | for (item = cpu_log_items; item->mask != 0; item++) { |
1164 | 296af7c9 | Blue Swirl | printf("%-10s %s\n", item->name, item->help);
|
1165 | 296af7c9 | Blue Swirl | } |
1166 | 296af7c9 | Blue Swirl | exit(1);
|
1167 | 296af7c9 | Blue Swirl | } |
1168 | 296af7c9 | Blue Swirl | cpu_set_log(mask); |
1169 | 296af7c9 | Blue Swirl | } |
1170 | 29e922b6 | Blue Swirl | |
1171 | c235d738 | Matthew Fernandez | void set_cpu_log_filename(const char *optarg) |
1172 | c235d738 | Matthew Fernandez | { |
1173 | c235d738 | Matthew Fernandez | cpu_set_log_filename(optarg); |
1174 | c235d738 | Matthew Fernandez | } |
1175 | c235d738 | Matthew Fernandez | |
1176 | 9a78eead | Stefan Weil | void list_cpus(FILE *f, fprintf_function cpu_fprintf, const char *optarg) |
1177 | 262353cb | Blue Swirl | { |
1178 | 262353cb | Blue Swirl | /* XXX: implement xxx_cpu_list for targets that still miss it */
|
1179 | 262353cb | Blue Swirl | #if defined(cpu_list_id)
|
1180 | 262353cb | Blue Swirl | cpu_list_id(f, cpu_fprintf, optarg); |
1181 | 262353cb | Blue Swirl | #elif defined(cpu_list)
|
1182 | 262353cb | Blue Swirl | cpu_list(f, cpu_fprintf); /* deprecated */
|
1183 | 262353cb | Blue Swirl | #endif
|
1184 | 262353cb | Blue Swirl | } |
1185 | de0b36b6 | Luiz Capitulino | |
1186 | de0b36b6 | Luiz Capitulino | CpuInfoList *qmp_query_cpus(Error **errp) |
1187 | de0b36b6 | Luiz Capitulino | { |
1188 | de0b36b6 | Luiz Capitulino | CpuInfoList *head = NULL, *cur_item = NULL; |
1189 | 9349b4f9 | Andreas Färber | CPUArchState *env; |
1190 | de0b36b6 | Luiz Capitulino | |
1191 | de0b36b6 | Luiz Capitulino | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
1192 | de0b36b6 | Luiz Capitulino | CpuInfoList *info; |
1193 | de0b36b6 | Luiz Capitulino | |
1194 | de0b36b6 | Luiz Capitulino | cpu_synchronize_state(env); |
1195 | de0b36b6 | Luiz Capitulino | |
1196 | de0b36b6 | Luiz Capitulino | info = g_malloc0(sizeof(*info));
|
1197 | de0b36b6 | Luiz Capitulino | info->value = g_malloc0(sizeof(*info->value));
|
1198 | de0b36b6 | Luiz Capitulino | info->value->CPU = env->cpu_index; |
1199 | de0b36b6 | Luiz Capitulino | info->value->current = (env == first_cpu); |
1200 | de0b36b6 | Luiz Capitulino | info->value->halted = env->halted; |
1201 | de0b36b6 | Luiz Capitulino | info->value->thread_id = env->thread_id; |
1202 | de0b36b6 | Luiz Capitulino | #if defined(TARGET_I386)
|
1203 | de0b36b6 | Luiz Capitulino | info->value->has_pc = true;
|
1204 | de0b36b6 | Luiz Capitulino | info->value->pc = env->eip + env->segs[R_CS].base; |
1205 | de0b36b6 | Luiz Capitulino | #elif defined(TARGET_PPC)
|
1206 | de0b36b6 | Luiz Capitulino | info->value->has_nip = true;
|
1207 | de0b36b6 | Luiz Capitulino | info->value->nip = env->nip; |
1208 | de0b36b6 | Luiz Capitulino | #elif defined(TARGET_SPARC)
|
1209 | de0b36b6 | Luiz Capitulino | info->value->has_pc = true;
|
1210 | de0b36b6 | Luiz Capitulino | info->value->pc = env->pc; |
1211 | de0b36b6 | Luiz Capitulino | info->value->has_npc = true;
|
1212 | de0b36b6 | Luiz Capitulino | info->value->npc = env->npc; |
1213 | de0b36b6 | Luiz Capitulino | #elif defined(TARGET_MIPS)
|
1214 | de0b36b6 | Luiz Capitulino | info->value->has_PC = true;
|
1215 | de0b36b6 | Luiz Capitulino | info->value->PC = env->active_tc.PC; |
1216 | de0b36b6 | Luiz Capitulino | #endif
|
1217 | de0b36b6 | Luiz Capitulino | |
1218 | de0b36b6 | Luiz Capitulino | /* XXX: waiting for the qapi to support GSList */
|
1219 | de0b36b6 | Luiz Capitulino | if (!cur_item) {
|
1220 | de0b36b6 | Luiz Capitulino | head = cur_item = info; |
1221 | de0b36b6 | Luiz Capitulino | } else {
|
1222 | de0b36b6 | Luiz Capitulino | cur_item->next = info; |
1223 | de0b36b6 | Luiz Capitulino | cur_item = info; |
1224 | de0b36b6 | Luiz Capitulino | } |
1225 | de0b36b6 | Luiz Capitulino | } |
1226 | de0b36b6 | Luiz Capitulino | |
1227 | de0b36b6 | Luiz Capitulino | return head;
|
1228 | de0b36b6 | Luiz Capitulino | } |
1229 | 0cfd6a9a | Luiz Capitulino | |
1230 | 0cfd6a9a | Luiz Capitulino | void qmp_memsave(int64_t addr, int64_t size, const char *filename, |
1231 | 0cfd6a9a | Luiz Capitulino | bool has_cpu, int64_t cpu_index, Error **errp)
|
1232 | 0cfd6a9a | Luiz Capitulino | { |
1233 | 0cfd6a9a | Luiz Capitulino | FILE *f; |
1234 | 0cfd6a9a | Luiz Capitulino | uint32_t l; |
1235 | 9349b4f9 | Andreas Färber | CPUArchState *env; |
1236 | 0cfd6a9a | Luiz Capitulino | uint8_t buf[1024];
|
1237 | 0cfd6a9a | Luiz Capitulino | |
1238 | 0cfd6a9a | Luiz Capitulino | if (!has_cpu) {
|
1239 | 0cfd6a9a | Luiz Capitulino | cpu_index = 0;
|
1240 | 0cfd6a9a | Luiz Capitulino | } |
1241 | 0cfd6a9a | Luiz Capitulino | |
1242 | 0cfd6a9a | Luiz Capitulino | for (env = first_cpu; env; env = env->next_cpu) {
|
1243 | 0cfd6a9a | Luiz Capitulino | if (cpu_index == env->cpu_index) {
|
1244 | 0cfd6a9a | Luiz Capitulino | break;
|
1245 | 0cfd6a9a | Luiz Capitulino | } |
1246 | 0cfd6a9a | Luiz Capitulino | } |
1247 | 0cfd6a9a | Luiz Capitulino | |
1248 | 0cfd6a9a | Luiz Capitulino | if (env == NULL) { |
1249 | 0cfd6a9a | Luiz Capitulino | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
|
1250 | 0cfd6a9a | Luiz Capitulino | "a CPU number");
|
1251 | 0cfd6a9a | Luiz Capitulino | return;
|
1252 | 0cfd6a9a | Luiz Capitulino | } |
1253 | 0cfd6a9a | Luiz Capitulino | |
1254 | 0cfd6a9a | Luiz Capitulino | f = fopen(filename, "wb");
|
1255 | 0cfd6a9a | Luiz Capitulino | if (!f) {
|
1256 | 0cfd6a9a | Luiz Capitulino | error_set(errp, QERR_OPEN_FILE_FAILED, filename); |
1257 | 0cfd6a9a | Luiz Capitulino | return;
|
1258 | 0cfd6a9a | Luiz Capitulino | } |
1259 | 0cfd6a9a | Luiz Capitulino | |
1260 | 0cfd6a9a | Luiz Capitulino | while (size != 0) { |
1261 | 0cfd6a9a | Luiz Capitulino | l = sizeof(buf);
|
1262 | 0cfd6a9a | Luiz Capitulino | if (l > size)
|
1263 | 0cfd6a9a | Luiz Capitulino | l = size; |
1264 | 0cfd6a9a | Luiz Capitulino | cpu_memory_rw_debug(env, addr, buf, l, 0);
|
1265 | 0cfd6a9a | Luiz Capitulino | if (fwrite(buf, 1, l, f) != l) { |
1266 | 0cfd6a9a | Luiz Capitulino | error_set(errp, QERR_IO_ERROR); |
1267 | 0cfd6a9a | Luiz Capitulino | goto exit;
|
1268 | 0cfd6a9a | Luiz Capitulino | } |
1269 | 0cfd6a9a | Luiz Capitulino | addr += l; |
1270 | 0cfd6a9a | Luiz Capitulino | size -= l; |
1271 | 0cfd6a9a | Luiz Capitulino | } |
1272 | 0cfd6a9a | Luiz Capitulino | |
1273 | 0cfd6a9a | Luiz Capitulino | exit:
|
1274 | 0cfd6a9a | Luiz Capitulino | fclose(f); |
1275 | 0cfd6a9a | Luiz Capitulino | } |
1276 | 6d3962bf | Luiz Capitulino | |
1277 | 6d3962bf | Luiz Capitulino | void qmp_pmemsave(int64_t addr, int64_t size, const char *filename, |
1278 | 6d3962bf | Luiz Capitulino | Error **errp) |
1279 | 6d3962bf | Luiz Capitulino | { |
1280 | 6d3962bf | Luiz Capitulino | FILE *f; |
1281 | 6d3962bf | Luiz Capitulino | uint32_t l; |
1282 | 6d3962bf | Luiz Capitulino | uint8_t buf[1024];
|
1283 | 6d3962bf | Luiz Capitulino | |
1284 | 6d3962bf | Luiz Capitulino | f = fopen(filename, "wb");
|
1285 | 6d3962bf | Luiz Capitulino | if (!f) {
|
1286 | 6d3962bf | Luiz Capitulino | error_set(errp, QERR_OPEN_FILE_FAILED, filename); |
1287 | 6d3962bf | Luiz Capitulino | return;
|
1288 | 6d3962bf | Luiz Capitulino | } |
1289 | 6d3962bf | Luiz Capitulino | |
1290 | 6d3962bf | Luiz Capitulino | while (size != 0) { |
1291 | 6d3962bf | Luiz Capitulino | l = sizeof(buf);
|
1292 | 6d3962bf | Luiz Capitulino | if (l > size)
|
1293 | 6d3962bf | Luiz Capitulino | l = size; |
1294 | 6d3962bf | Luiz Capitulino | cpu_physical_memory_rw(addr, buf, l, 0);
|
1295 | 6d3962bf | Luiz Capitulino | if (fwrite(buf, 1, l, f) != l) { |
1296 | 6d3962bf | Luiz Capitulino | error_set(errp, QERR_IO_ERROR); |
1297 | 6d3962bf | Luiz Capitulino | goto exit;
|
1298 | 6d3962bf | Luiz Capitulino | } |
1299 | 6d3962bf | Luiz Capitulino | addr += l; |
1300 | 6d3962bf | Luiz Capitulino | size -= l; |
1301 | 6d3962bf | Luiz Capitulino | } |
1302 | 6d3962bf | Luiz Capitulino | |
1303 | 6d3962bf | Luiz Capitulino | exit:
|
1304 | 6d3962bf | Luiz Capitulino | fclose(f); |
1305 | 6d3962bf | Luiz Capitulino | } |
1306 | ab49ab5c | Luiz Capitulino | |
1307 | ab49ab5c | Luiz Capitulino | void qmp_inject_nmi(Error **errp)
|
1308 | ab49ab5c | Luiz Capitulino | { |
1309 | ab49ab5c | Luiz Capitulino | #if defined(TARGET_I386)
|
1310 | 9349b4f9 | Andreas Färber | CPUArchState *env; |
1311 | ab49ab5c | Luiz Capitulino | |
1312 | ab49ab5c | Luiz Capitulino | for (env = first_cpu; env != NULL; env = env->next_cpu) { |
1313 | 02c09195 | Jan Kiszka | if (!env->apic_state) {
|
1314 | 02c09195 | Jan Kiszka | cpu_interrupt(env, CPU_INTERRUPT_NMI); |
1315 | 02c09195 | Jan Kiszka | } else {
|
1316 | 02c09195 | Jan Kiszka | apic_deliver_nmi(env->apic_state); |
1317 | 02c09195 | Jan Kiszka | } |
1318 | ab49ab5c | Luiz Capitulino | } |
1319 | ab49ab5c | Luiz Capitulino | #else
|
1320 | ab49ab5c | Luiz Capitulino | error_set(errp, QERR_UNSUPPORTED); |
1321 | ab49ab5c | Luiz Capitulino | #endif
|
1322 | ab49ab5c | Luiz Capitulino | } |