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1 | a672b469 | aliguori | /*
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2 | a672b469 | aliguori | * QEMU System Emulator
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3 | a672b469 | aliguori | *
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4 | a672b469 | aliguori | * Copyright (c) 2003-2008 Fabrice Bellard
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5 | a672b469 | aliguori | *
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6 | a672b469 | aliguori | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | a672b469 | aliguori | * of this software and associated documentation files (the "Software"), to deal
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8 | a672b469 | aliguori | * in the Software without restriction, including without limitation the rights
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9 | a672b469 | aliguori | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | a672b469 | aliguori | * copies of the Software, and to permit persons to whom the Software is
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11 | a672b469 | aliguori | * furnished to do so, subject to the following conditions:
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12 | a672b469 | aliguori | *
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13 | a672b469 | aliguori | * The above copyright notice and this permission notice shall be included in
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14 | a672b469 | aliguori | * all copies or substantial portions of the Software.
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15 | a672b469 | aliguori | *
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16 | a672b469 | aliguori | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | a672b469 | aliguori | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | a672b469 | aliguori | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | a672b469 | aliguori | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | a672b469 | aliguori | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | a672b469 | aliguori | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | a672b469 | aliguori | * THE SOFTWARE.
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23 | a672b469 | aliguori | */
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24 | a672b469 | aliguori | #include <unistd.h> |
25 | a672b469 | aliguori | #include <fcntl.h> |
26 | a672b469 | aliguori | #include <signal.h> |
27 | a672b469 | aliguori | #include <time.h> |
28 | a672b469 | aliguori | #include <errno.h> |
29 | a672b469 | aliguori | #include <sys/time.h> |
30 | a672b469 | aliguori | #include <zlib.h> |
31 | a672b469 | aliguori | |
32 | 71e72a19 | Juan Quintela | /* Needed early for CONFIG_BSD etc. */
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33 | d40cdb10 | blueswir1 | #include "config-host.h" |
34 | d40cdb10 | blueswir1 | |
35 | a672b469 | aliguori | #ifndef _WIN32
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36 | a672b469 | aliguori | #include <sys/times.h> |
37 | a672b469 | aliguori | #include <sys/wait.h> |
38 | a672b469 | aliguori | #include <termios.h> |
39 | a672b469 | aliguori | #include <sys/mman.h> |
40 | a672b469 | aliguori | #include <sys/ioctl.h> |
41 | a672b469 | aliguori | #include <sys/resource.h> |
42 | a672b469 | aliguori | #include <sys/socket.h> |
43 | a672b469 | aliguori | #include <netinet/in.h> |
44 | a672b469 | aliguori | #include <net/if.h> |
45 | a672b469 | aliguori | #include <arpa/inet.h> |
46 | a672b469 | aliguori | #include <dirent.h> |
47 | a672b469 | aliguori | #include <netdb.h> |
48 | a672b469 | aliguori | #include <sys/select.h> |
49 | 71e72a19 | Juan Quintela | #ifdef CONFIG_BSD
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50 | a672b469 | aliguori | #include <sys/stat.h> |
51 | a167ba50 | Aurelien Jarno | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
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52 | a672b469 | aliguori | #include <libutil.h> |
53 | a672b469 | aliguori | #else
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54 | a672b469 | aliguori | #include <util.h> |
55 | a672b469 | aliguori | #endif
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56 | a672b469 | aliguori | #ifdef __linux__
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57 | a672b469 | aliguori | #include <pty.h> |
58 | a672b469 | aliguori | #include <malloc.h> |
59 | a672b469 | aliguori | #include <linux/rtc.h> |
60 | a672b469 | aliguori | #endif
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61 | a672b469 | aliguori | #endif
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62 | a672b469 | aliguori | #endif
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63 | a672b469 | aliguori | |
64 | a672b469 | aliguori | #ifdef _WIN32
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65 | 49dc768d | aliguori | #include <windows.h> |
66 | a672b469 | aliguori | #include <malloc.h> |
67 | a672b469 | aliguori | #include <sys/timeb.h> |
68 | a672b469 | aliguori | #include <mmsystem.h> |
69 | a672b469 | aliguori | #define getopt_long_only getopt_long
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70 | a672b469 | aliguori | #define memalign(align, size) malloc(size)
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71 | a672b469 | aliguori | #endif
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72 | a672b469 | aliguori | |
73 | 511d2b14 | blueswir1 | #include "qemu-common.h" |
74 | 511d2b14 | blueswir1 | #include "hw/hw.h" |
75 | 7685ee6a | Alex Williamson | #include "hw/qdev.h" |
76 | 511d2b14 | blueswir1 | #include "net.h" |
77 | 511d2b14 | blueswir1 | #include "monitor.h" |
78 | 511d2b14 | blueswir1 | #include "sysemu.h" |
79 | 511d2b14 | blueswir1 | #include "qemu-timer.h" |
80 | 511d2b14 | blueswir1 | #include "qemu-char.h" |
81 | 666daa68 | Markus Armbruster | #include "blockdev.h" |
82 | 511d2b14 | blueswir1 | #include "audio/audio.h" |
83 | 511d2b14 | blueswir1 | #include "migration.h" |
84 | 511d2b14 | blueswir1 | #include "qemu_socket.h" |
85 | 72cf2d4f | Blue Swirl | #include "qemu-queue.h" |
86 | 511d2b14 | blueswir1 | |
87 | a672b469 | aliguori | #define SELF_ANNOUNCE_ROUNDS 5 |
88 | a672b469 | aliguori | |
89 | 18995b98 | Nolan | #ifndef ETH_P_RARP
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90 | f8778a77 | Stefan Berger | #define ETH_P_RARP 0x8035 |
91 | 18995b98 | Nolan | #endif
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92 | 18995b98 | Nolan | #define ARP_HTYPE_ETH 0x0001 |
93 | 18995b98 | Nolan | #define ARP_PTYPE_IP 0x0800 |
94 | 18995b98 | Nolan | #define ARP_OP_REQUEST_REV 0x3 |
95 | 18995b98 | Nolan | |
96 | 18995b98 | Nolan | static int announce_self_create(uint8_t *buf, |
97 | a672b469 | aliguori | uint8_t *mac_addr) |
98 | a672b469 | aliguori | { |
99 | 18995b98 | Nolan | /* Ethernet header. */
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100 | 18995b98 | Nolan | memset(buf, 0xff, 6); /* destination MAC addr */ |
101 | 18995b98 | Nolan | memcpy(buf + 6, mac_addr, 6); /* source MAC addr */ |
102 | 18995b98 | Nolan | *(uint16_t *)(buf + 12) = htons(ETH_P_RARP); /* ethertype */ |
103 | 18995b98 | Nolan | |
104 | 18995b98 | Nolan | /* RARP header. */
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105 | 18995b98 | Nolan | *(uint16_t *)(buf + 14) = htons(ARP_HTYPE_ETH); /* hardware addr space */ |
106 | 18995b98 | Nolan | *(uint16_t *)(buf + 16) = htons(ARP_PTYPE_IP); /* protocol addr space */ |
107 | 18995b98 | Nolan | *(buf + 18) = 6; /* hardware addr length (ethernet) */ |
108 | 18995b98 | Nolan | *(buf + 19) = 4; /* protocol addr length (IPv4) */ |
109 | 18995b98 | Nolan | *(uint16_t *)(buf + 20) = htons(ARP_OP_REQUEST_REV); /* opcode */ |
110 | 18995b98 | Nolan | memcpy(buf + 22, mac_addr, 6); /* source hw addr */ |
111 | 18995b98 | Nolan | memset(buf + 28, 0x00, 4); /* source protocol addr */ |
112 | 18995b98 | Nolan | memcpy(buf + 32, mac_addr, 6); /* target hw addr */ |
113 | 18995b98 | Nolan | memset(buf + 38, 0x00, 4); /* target protocol addr */ |
114 | 18995b98 | Nolan | |
115 | 18995b98 | Nolan | /* Padding to get up to 60 bytes (ethernet min packet size, minus FCS). */
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116 | 18995b98 | Nolan | memset(buf + 42, 0x00, 18); |
117 | 18995b98 | Nolan | |
118 | 18995b98 | Nolan | return 60; /* len (FCS will be added by hardware) */ |
119 | a672b469 | aliguori | } |
120 | a672b469 | aliguori | |
121 | f401ca22 | Mark McLoughlin | static void qemu_announce_self_iter(NICState *nic, void *opaque) |
122 | a672b469 | aliguori | { |
123 | 18995b98 | Nolan | uint8_t buf[60];
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124 | f401ca22 | Mark McLoughlin | int len;
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125 | f401ca22 | Mark McLoughlin | |
126 | f401ca22 | Mark McLoughlin | len = announce_self_create(buf, nic->conf->macaddr.a); |
127 | f401ca22 | Mark McLoughlin | |
128 | f401ca22 | Mark McLoughlin | qemu_send_packet_raw(&nic->nc, buf, len); |
129 | f401ca22 | Mark McLoughlin | } |
130 | f401ca22 | Mark McLoughlin | |
131 | f401ca22 | Mark McLoughlin | |
132 | f401ca22 | Mark McLoughlin | static void qemu_announce_self_once(void *opaque) |
133 | f401ca22 | Mark McLoughlin | { |
134 | ed8b330b | Gleb Natapov | static int count = SELF_ANNOUNCE_ROUNDS; |
135 | ed8b330b | Gleb Natapov | QEMUTimer *timer = *(QEMUTimer **)opaque; |
136 | a672b469 | aliguori | |
137 | f401ca22 | Mark McLoughlin | qemu_foreach_nic(qemu_announce_self_iter, NULL);
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138 | f401ca22 | Mark McLoughlin | |
139 | 18995b98 | Nolan | if (--count) {
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140 | 18995b98 | Nolan | /* delay 50ms, 150ms, 250ms, ... */
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141 | 18995b98 | Nolan | qemu_mod_timer(timer, qemu_get_clock(rt_clock) + |
142 | 18995b98 | Nolan | 50 + (SELF_ANNOUNCE_ROUNDS - count - 1) * 100); |
143 | ed8b330b | Gleb Natapov | } else {
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144 | ed8b330b | Gleb Natapov | qemu_del_timer(timer); |
145 | ed8b330b | Gleb Natapov | qemu_free_timer(timer); |
146 | ed8b330b | Gleb Natapov | } |
147 | ed8b330b | Gleb Natapov | } |
148 | ed8b330b | Gleb Natapov | |
149 | ed8b330b | Gleb Natapov | void qemu_announce_self(void) |
150 | ed8b330b | Gleb Natapov | { |
151 | ed8b330b | Gleb Natapov | static QEMUTimer *timer;
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152 | ed8b330b | Gleb Natapov | timer = qemu_new_timer(rt_clock, qemu_announce_self_once, &timer); |
153 | ed8b330b | Gleb Natapov | qemu_announce_self_once(&timer); |
154 | a672b469 | aliguori | } |
155 | a672b469 | aliguori | |
156 | a672b469 | aliguori | /***********************************************************/
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157 | a672b469 | aliguori | /* savevm/loadvm support */
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158 | a672b469 | aliguori | |
159 | a672b469 | aliguori | #define IO_BUF_SIZE 32768 |
160 | a672b469 | aliguori | |
161 | a672b469 | aliguori | struct QEMUFile {
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162 | a672b469 | aliguori | QEMUFilePutBufferFunc *put_buffer; |
163 | a672b469 | aliguori | QEMUFileGetBufferFunc *get_buffer; |
164 | a672b469 | aliguori | QEMUFileCloseFunc *close; |
165 | a672b469 | aliguori | QEMUFileRateLimit *rate_limit; |
166 | 19629537 | Glauber Costa | QEMUFileSetRateLimit *set_rate_limit; |
167 | c163b5ca | lirans@il.ibm.com | QEMUFileGetRateLimit *get_rate_limit; |
168 | a672b469 | aliguori | void *opaque;
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169 | a672b469 | aliguori | int is_write;
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170 | a672b469 | aliguori | |
171 | a672b469 | aliguori | int64_t buf_offset; /* start of buffer when writing, end of buffer
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172 | a672b469 | aliguori | when reading */
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173 | a672b469 | aliguori | int buf_index;
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174 | a672b469 | aliguori | int buf_size; /* 0 when writing */ |
175 | a672b469 | aliguori | uint8_t buf[IO_BUF_SIZE]; |
176 | a672b469 | aliguori | |
177 | a672b469 | aliguori | int has_error;
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178 | a672b469 | aliguori | }; |
179 | a672b469 | aliguori | |
180 | 7f79dd28 | Paolo Bonzini | typedef struct QEMUFileStdio |
181 | a672b469 | aliguori | { |
182 | 7f79dd28 | Paolo Bonzini | FILE *stdio_file; |
183 | a672b469 | aliguori | QEMUFile *file; |
184 | 7f79dd28 | Paolo Bonzini | } QEMUFileStdio; |
185 | a672b469 | aliguori | |
186 | a672b469 | aliguori | typedef struct QEMUFileSocket |
187 | a672b469 | aliguori | { |
188 | a672b469 | aliguori | int fd;
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189 | a672b469 | aliguori | QEMUFile *file; |
190 | a672b469 | aliguori | } QEMUFileSocket; |
191 | a672b469 | aliguori | |
192 | a672b469 | aliguori | static int socket_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size) |
193 | a672b469 | aliguori | { |
194 | a672b469 | aliguori | QEMUFileSocket *s = opaque; |
195 | a672b469 | aliguori | ssize_t len; |
196 | a672b469 | aliguori | |
197 | a672b469 | aliguori | do {
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198 | c5b76b38 | Blue Swirl | len = recv(s->fd, (void *)buf, size, 0); |
199 | a672b469 | aliguori | } while (len == -1 && socket_error() == EINTR); |
200 | a672b469 | aliguori | |
201 | a672b469 | aliguori | if (len == -1) |
202 | a672b469 | aliguori | len = -socket_error(); |
203 | a672b469 | aliguori | |
204 | a672b469 | aliguori | return len;
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205 | a672b469 | aliguori | } |
206 | a672b469 | aliguori | |
207 | a672b469 | aliguori | static int socket_close(void *opaque) |
208 | a672b469 | aliguori | { |
209 | a672b469 | aliguori | QEMUFileSocket *s = opaque; |
210 | a672b469 | aliguori | qemu_free(s); |
211 | a672b469 | aliguori | return 0; |
212 | a672b469 | aliguori | } |
213 | a672b469 | aliguori | |
214 | 7f79dd28 | Paolo Bonzini | static int stdio_put_buffer(void *opaque, const uint8_t *buf, int64_t pos, int size) |
215 | a672b469 | aliguori | { |
216 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s = opaque; |
217 | 7f79dd28 | Paolo Bonzini | return fwrite(buf, 1, size, s->stdio_file); |
218 | a672b469 | aliguori | } |
219 | a672b469 | aliguori | |
220 | 7f79dd28 | Paolo Bonzini | static int stdio_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size) |
221 | a672b469 | aliguori | { |
222 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s = opaque; |
223 | 7f79dd28 | Paolo Bonzini | FILE *fp = s->stdio_file; |
224 | 8a67ec4d | Uri Lublin | int bytes;
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225 | 8a67ec4d | Uri Lublin | |
226 | 8a67ec4d | Uri Lublin | do {
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227 | 8a67ec4d | Uri Lublin | clearerr(fp); |
228 | 8a67ec4d | Uri Lublin | bytes = fread(buf, 1, size, fp);
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229 | 8a67ec4d | Uri Lublin | } while ((bytes == 0) && ferror(fp) && (errno == EINTR)); |
230 | 8a67ec4d | Uri Lublin | return bytes;
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231 | a672b469 | aliguori | } |
232 | a672b469 | aliguori | |
233 | 7f79dd28 | Paolo Bonzini | static int stdio_pclose(void *opaque) |
234 | 7f79dd28 | Paolo Bonzini | { |
235 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s = opaque; |
236 | 41ef56e6 | Anthony Liguori | int ret;
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237 | 41ef56e6 | Anthony Liguori | ret = pclose(s->stdio_file); |
238 | 7f79dd28 | Paolo Bonzini | qemu_free(s); |
239 | 41ef56e6 | Anthony Liguori | return ret;
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240 | 7f79dd28 | Paolo Bonzini | } |
241 | 7f79dd28 | Paolo Bonzini | |
242 | 7f79dd28 | Paolo Bonzini | static int stdio_fclose(void *opaque) |
243 | a672b469 | aliguori | { |
244 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s = opaque; |
245 | 7f79dd28 | Paolo Bonzini | fclose(s->stdio_file); |
246 | a672b469 | aliguori | qemu_free(s); |
247 | a672b469 | aliguori | return 0; |
248 | a672b469 | aliguori | } |
249 | a672b469 | aliguori | |
250 | 7f79dd28 | Paolo Bonzini | QEMUFile *qemu_popen(FILE *stdio_file, const char *mode) |
251 | a672b469 | aliguori | { |
252 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s; |
253 | a672b469 | aliguori | |
254 | 7f79dd28 | Paolo Bonzini | if (stdio_file == NULL || mode == NULL || (mode[0] != 'r' && mode[0] != 'w') || mode[1] != 0) { |
255 | a672b469 | aliguori | fprintf(stderr, "qemu_popen: Argument validity check failed\n");
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256 | a672b469 | aliguori | return NULL; |
257 | a672b469 | aliguori | } |
258 | a672b469 | aliguori | |
259 | 7f79dd28 | Paolo Bonzini | s = qemu_mallocz(sizeof(QEMUFileStdio));
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260 | a672b469 | aliguori | |
261 | 7f79dd28 | Paolo Bonzini | s->stdio_file = stdio_file; |
262 | a672b469 | aliguori | |
263 | a672b469 | aliguori | if(mode[0] == 'r') { |
264 | c163b5ca | lirans@il.ibm.com | s->file = qemu_fopen_ops(s, NULL, stdio_get_buffer, stdio_pclose,
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265 | c163b5ca | lirans@il.ibm.com | NULL, NULL, NULL); |
266 | a672b469 | aliguori | } else {
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267 | c163b5ca | lirans@il.ibm.com | s->file = qemu_fopen_ops(s, stdio_put_buffer, NULL, stdio_pclose,
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268 | c163b5ca | lirans@il.ibm.com | NULL, NULL, NULL); |
269 | a672b469 | aliguori | } |
270 | a672b469 | aliguori | return s->file;
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271 | a672b469 | aliguori | } |
272 | a672b469 | aliguori | |
273 | a672b469 | aliguori | QEMUFile *qemu_popen_cmd(const char *command, const char *mode) |
274 | a672b469 | aliguori | { |
275 | a672b469 | aliguori | FILE *popen_file; |
276 | a672b469 | aliguori | |
277 | a672b469 | aliguori | popen_file = popen(command, mode); |
278 | a672b469 | aliguori | if(popen_file == NULL) { |
279 | a672b469 | aliguori | return NULL; |
280 | a672b469 | aliguori | } |
281 | a672b469 | aliguori | |
282 | a672b469 | aliguori | return qemu_popen(popen_file, mode);
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283 | a672b469 | aliguori | } |
284 | a672b469 | aliguori | |
285 | 7f79dd28 | Paolo Bonzini | int qemu_stdio_fd(QEMUFile *f)
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286 | 8a43b1ea | Chris Lalancette | { |
287 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *p; |
288 | 8a43b1ea | Chris Lalancette | int fd;
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289 | 8a43b1ea | Chris Lalancette | |
290 | 7f79dd28 | Paolo Bonzini | p = (QEMUFileStdio *)f->opaque; |
291 | 7f79dd28 | Paolo Bonzini | fd = fileno(p->stdio_file); |
292 | 8a43b1ea | Chris Lalancette | |
293 | 8a43b1ea | Chris Lalancette | return fd;
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294 | 8a43b1ea | Chris Lalancette | } |
295 | 8a43b1ea | Chris Lalancette | |
296 | 5ac1fad3 | Paolo Bonzini | QEMUFile *qemu_fdopen(int fd, const char *mode) |
297 | 5ac1fad3 | Paolo Bonzini | { |
298 | 5ac1fad3 | Paolo Bonzini | QEMUFileStdio *s; |
299 | 5ac1fad3 | Paolo Bonzini | |
300 | 5ac1fad3 | Paolo Bonzini | if (mode == NULL || |
301 | 5ac1fad3 | Paolo Bonzini | (mode[0] != 'r' && mode[0] != 'w') || |
302 | 5ac1fad3 | Paolo Bonzini | mode[1] != 'b' || mode[2] != 0) { |
303 | 5ac1fad3 | Paolo Bonzini | fprintf(stderr, "qemu_fdopen: Argument validity check failed\n");
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304 | 5ac1fad3 | Paolo Bonzini | return NULL; |
305 | 5ac1fad3 | Paolo Bonzini | } |
306 | 5ac1fad3 | Paolo Bonzini | |
307 | 5ac1fad3 | Paolo Bonzini | s = qemu_mallocz(sizeof(QEMUFileStdio));
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308 | 5ac1fad3 | Paolo Bonzini | s->stdio_file = fdopen(fd, mode); |
309 | 5ac1fad3 | Paolo Bonzini | if (!s->stdio_file)
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310 | 5ac1fad3 | Paolo Bonzini | goto fail;
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311 | 5ac1fad3 | Paolo Bonzini | |
312 | 5ac1fad3 | Paolo Bonzini | if(mode[0] == 'r') { |
313 | c163b5ca | lirans@il.ibm.com | s->file = qemu_fopen_ops(s, NULL, stdio_get_buffer, stdio_fclose,
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314 | c163b5ca | lirans@il.ibm.com | NULL, NULL, NULL); |
315 | 5ac1fad3 | Paolo Bonzini | } else {
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316 | c163b5ca | lirans@il.ibm.com | s->file = qemu_fopen_ops(s, stdio_put_buffer, NULL, stdio_fclose,
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317 | c163b5ca | lirans@il.ibm.com | NULL, NULL, NULL); |
318 | 5ac1fad3 | Paolo Bonzini | } |
319 | 5ac1fad3 | Paolo Bonzini | return s->file;
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320 | 5ac1fad3 | Paolo Bonzini | |
321 | 5ac1fad3 | Paolo Bonzini | fail:
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322 | 5ac1fad3 | Paolo Bonzini | qemu_free(s); |
323 | 5ac1fad3 | Paolo Bonzini | return NULL; |
324 | 5ac1fad3 | Paolo Bonzini | } |
325 | 5ac1fad3 | Paolo Bonzini | |
326 | a672b469 | aliguori | QEMUFile *qemu_fopen_socket(int fd)
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327 | a672b469 | aliguori | { |
328 | a672b469 | aliguori | QEMUFileSocket *s = qemu_mallocz(sizeof(QEMUFileSocket));
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329 | a672b469 | aliguori | |
330 | a672b469 | aliguori | s->fd = fd; |
331 | c163b5ca | lirans@il.ibm.com | s->file = qemu_fopen_ops(s, NULL, socket_get_buffer, socket_close,
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332 | c163b5ca | lirans@il.ibm.com | NULL, NULL, NULL); |
333 | a672b469 | aliguori | return s->file;
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334 | a672b469 | aliguori | } |
335 | a672b469 | aliguori | |
336 | a672b469 | aliguori | static int file_put_buffer(void *opaque, const uint8_t *buf, |
337 | a672b469 | aliguori | int64_t pos, int size)
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338 | a672b469 | aliguori | { |
339 | a672b469 | aliguori | QEMUFileStdio *s = opaque; |
340 | 7f79dd28 | Paolo Bonzini | fseek(s->stdio_file, pos, SEEK_SET); |
341 | 5fdb3aa1 | Kirill A. Shutemov | return fwrite(buf, 1, size, s->stdio_file); |
342 | a672b469 | aliguori | } |
343 | a672b469 | aliguori | |
344 | a672b469 | aliguori | static int file_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size) |
345 | a672b469 | aliguori | { |
346 | a672b469 | aliguori | QEMUFileStdio *s = opaque; |
347 | 7f79dd28 | Paolo Bonzini | fseek(s->stdio_file, pos, SEEK_SET); |
348 | 7f79dd28 | Paolo Bonzini | return fread(buf, 1, size, s->stdio_file); |
349 | a672b469 | aliguori | } |
350 | a672b469 | aliguori | |
351 | a672b469 | aliguori | QEMUFile *qemu_fopen(const char *filename, const char *mode) |
352 | a672b469 | aliguori | { |
353 | a672b469 | aliguori | QEMUFileStdio *s; |
354 | a672b469 | aliguori | |
355 | 7f79dd28 | Paolo Bonzini | if (mode == NULL || |
356 | 7f79dd28 | Paolo Bonzini | (mode[0] != 'r' && mode[0] != 'w') || |
357 | 7f79dd28 | Paolo Bonzini | mode[1] != 'b' || mode[2] != 0) { |
358 | 090414a3 | Blue Swirl | fprintf(stderr, "qemu_fopen: Argument validity check failed\n");
|
359 | 7f79dd28 | Paolo Bonzini | return NULL; |
360 | 7f79dd28 | Paolo Bonzini | } |
361 | 7f79dd28 | Paolo Bonzini | |
362 | a672b469 | aliguori | s = qemu_mallocz(sizeof(QEMUFileStdio));
|
363 | a672b469 | aliguori | |
364 | 7f79dd28 | Paolo Bonzini | s->stdio_file = fopen(filename, mode); |
365 | 7f79dd28 | Paolo Bonzini | if (!s->stdio_file)
|
366 | a672b469 | aliguori | goto fail;
|
367 | c163b5ca | lirans@il.ibm.com | |
368 | 7f79dd28 | Paolo Bonzini | if(mode[0] == 'w') { |
369 | c163b5ca | lirans@il.ibm.com | s->file = qemu_fopen_ops(s, file_put_buffer, NULL, stdio_fclose,
|
370 | c163b5ca | lirans@il.ibm.com | NULL, NULL, NULL); |
371 | 7f79dd28 | Paolo Bonzini | } else {
|
372 | c163b5ca | lirans@il.ibm.com | s->file = qemu_fopen_ops(s, NULL, file_get_buffer, stdio_fclose,
|
373 | c163b5ca | lirans@il.ibm.com | NULL, NULL, NULL); |
374 | 7f79dd28 | Paolo Bonzini | } |
375 | 7f79dd28 | Paolo Bonzini | return s->file;
|
376 | a672b469 | aliguori | fail:
|
377 | a672b469 | aliguori | qemu_free(s); |
378 | a672b469 | aliguori | return NULL; |
379 | a672b469 | aliguori | } |
380 | a672b469 | aliguori | |
381 | 178e08a5 | aliguori | static int block_put_buffer(void *opaque, const uint8_t *buf, |
382 | a672b469 | aliguori | int64_t pos, int size)
|
383 | a672b469 | aliguori | { |
384 | 45566e9c | Christoph Hellwig | bdrv_save_vmstate(opaque, buf, pos, size); |
385 | a672b469 | aliguori | return size;
|
386 | a672b469 | aliguori | } |
387 | a672b469 | aliguori | |
388 | 178e08a5 | aliguori | static int block_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size) |
389 | a672b469 | aliguori | { |
390 | 45566e9c | Christoph Hellwig | return bdrv_load_vmstate(opaque, buf, pos, size);
|
391 | a672b469 | aliguori | } |
392 | a672b469 | aliguori | |
393 | a672b469 | aliguori | static int bdrv_fclose(void *opaque) |
394 | a672b469 | aliguori | { |
395 | a672b469 | aliguori | return 0; |
396 | a672b469 | aliguori | } |
397 | a672b469 | aliguori | |
398 | 45566e9c | Christoph Hellwig | static QEMUFile *qemu_fopen_bdrv(BlockDriverState *bs, int is_writable) |
399 | a672b469 | aliguori | { |
400 | a672b469 | aliguori | if (is_writable)
|
401 | c163b5ca | lirans@il.ibm.com | return qemu_fopen_ops(bs, block_put_buffer, NULL, bdrv_fclose, |
402 | c163b5ca | lirans@il.ibm.com | NULL, NULL, NULL); |
403 | c163b5ca | lirans@il.ibm.com | return qemu_fopen_ops(bs, NULL, block_get_buffer, bdrv_fclose, NULL, NULL, NULL); |
404 | a672b469 | aliguori | } |
405 | a672b469 | aliguori | |
406 | a672b469 | aliguori | QEMUFile *qemu_fopen_ops(void *opaque, QEMUFilePutBufferFunc *put_buffer,
|
407 | a672b469 | aliguori | QEMUFileGetBufferFunc *get_buffer, |
408 | a672b469 | aliguori | QEMUFileCloseFunc *close, |
409 | 19629537 | Glauber Costa | QEMUFileRateLimit *rate_limit, |
410 | c163b5ca | lirans@il.ibm.com | QEMUFileSetRateLimit *set_rate_limit, |
411 | c163b5ca | lirans@il.ibm.com | QEMUFileGetRateLimit *get_rate_limit) |
412 | a672b469 | aliguori | { |
413 | a672b469 | aliguori | QEMUFile *f; |
414 | a672b469 | aliguori | |
415 | a672b469 | aliguori | f = qemu_mallocz(sizeof(QEMUFile));
|
416 | a672b469 | aliguori | |
417 | a672b469 | aliguori | f->opaque = opaque; |
418 | a672b469 | aliguori | f->put_buffer = put_buffer; |
419 | a672b469 | aliguori | f->get_buffer = get_buffer; |
420 | a672b469 | aliguori | f->close = close; |
421 | a672b469 | aliguori | f->rate_limit = rate_limit; |
422 | 19629537 | Glauber Costa | f->set_rate_limit = set_rate_limit; |
423 | c163b5ca | lirans@il.ibm.com | f->get_rate_limit = get_rate_limit; |
424 | a672b469 | aliguori | f->is_write = 0;
|
425 | a672b469 | aliguori | |
426 | a672b469 | aliguori | return f;
|
427 | a672b469 | aliguori | } |
428 | a672b469 | aliguori | |
429 | a672b469 | aliguori | int qemu_file_has_error(QEMUFile *f)
|
430 | a672b469 | aliguori | { |
431 | a672b469 | aliguori | return f->has_error;
|
432 | a672b469 | aliguori | } |
433 | a672b469 | aliguori | |
434 | 4dabe248 | aliguori | void qemu_file_set_error(QEMUFile *f)
|
435 | 4dabe248 | aliguori | { |
436 | 4dabe248 | aliguori | f->has_error = 1;
|
437 | 4dabe248 | aliguori | } |
438 | 4dabe248 | aliguori | |
439 | a672b469 | aliguori | void qemu_fflush(QEMUFile *f)
|
440 | a672b469 | aliguori | { |
441 | a672b469 | aliguori | if (!f->put_buffer)
|
442 | a672b469 | aliguori | return;
|
443 | a672b469 | aliguori | |
444 | a672b469 | aliguori | if (f->is_write && f->buf_index > 0) { |
445 | a672b469 | aliguori | int len;
|
446 | a672b469 | aliguori | |
447 | a672b469 | aliguori | len = f->put_buffer(f->opaque, f->buf, f->buf_offset, f->buf_index); |
448 | a672b469 | aliguori | if (len > 0) |
449 | a672b469 | aliguori | f->buf_offset += f->buf_index; |
450 | a672b469 | aliguori | else
|
451 | a672b469 | aliguori | f->has_error = 1;
|
452 | a672b469 | aliguori | f->buf_index = 0;
|
453 | a672b469 | aliguori | } |
454 | a672b469 | aliguori | } |
455 | a672b469 | aliguori | |
456 | a672b469 | aliguori | static void qemu_fill_buffer(QEMUFile *f) |
457 | a672b469 | aliguori | { |
458 | a672b469 | aliguori | int len;
|
459 | a672b469 | aliguori | |
460 | a672b469 | aliguori | if (!f->get_buffer)
|
461 | a672b469 | aliguori | return;
|
462 | a672b469 | aliguori | |
463 | a672b469 | aliguori | if (f->is_write)
|
464 | a672b469 | aliguori | abort(); |
465 | a672b469 | aliguori | |
466 | a672b469 | aliguori | len = f->get_buffer(f->opaque, f->buf, f->buf_offset, IO_BUF_SIZE); |
467 | a672b469 | aliguori | if (len > 0) { |
468 | a672b469 | aliguori | f->buf_index = 0;
|
469 | a672b469 | aliguori | f->buf_size = len; |
470 | a672b469 | aliguori | f->buf_offset += len; |
471 | a672b469 | aliguori | } else if (len != -EAGAIN) |
472 | a672b469 | aliguori | f->has_error = 1;
|
473 | a672b469 | aliguori | } |
474 | a672b469 | aliguori | |
475 | a672b469 | aliguori | int qemu_fclose(QEMUFile *f)
|
476 | a672b469 | aliguori | { |
477 | a672b469 | aliguori | int ret = 0; |
478 | a672b469 | aliguori | qemu_fflush(f); |
479 | a672b469 | aliguori | if (f->close)
|
480 | a672b469 | aliguori | ret = f->close(f->opaque); |
481 | a672b469 | aliguori | qemu_free(f); |
482 | a672b469 | aliguori | return ret;
|
483 | a672b469 | aliguori | } |
484 | a672b469 | aliguori | |
485 | a672b469 | aliguori | void qemu_file_put_notify(QEMUFile *f)
|
486 | a672b469 | aliguori | { |
487 | a672b469 | aliguori | f->put_buffer(f->opaque, NULL, 0, 0); |
488 | a672b469 | aliguori | } |
489 | a672b469 | aliguori | |
490 | a672b469 | aliguori | void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size) |
491 | a672b469 | aliguori | { |
492 | a672b469 | aliguori | int l;
|
493 | a672b469 | aliguori | |
494 | a672b469 | aliguori | if (!f->has_error && f->is_write == 0 && f->buf_index > 0) { |
495 | a672b469 | aliguori | fprintf(stderr, |
496 | a672b469 | aliguori | "Attempted to write to buffer while read buffer is not empty\n");
|
497 | a672b469 | aliguori | abort(); |
498 | a672b469 | aliguori | } |
499 | a672b469 | aliguori | |
500 | a672b469 | aliguori | while (!f->has_error && size > 0) { |
501 | a672b469 | aliguori | l = IO_BUF_SIZE - f->buf_index; |
502 | a672b469 | aliguori | if (l > size)
|
503 | a672b469 | aliguori | l = size; |
504 | a672b469 | aliguori | memcpy(f->buf + f->buf_index, buf, l); |
505 | a672b469 | aliguori | f->is_write = 1;
|
506 | a672b469 | aliguori | f->buf_index += l; |
507 | a672b469 | aliguori | buf += l; |
508 | a672b469 | aliguori | size -= l; |
509 | a672b469 | aliguori | if (f->buf_index >= IO_BUF_SIZE)
|
510 | a672b469 | aliguori | qemu_fflush(f); |
511 | a672b469 | aliguori | } |
512 | a672b469 | aliguori | } |
513 | a672b469 | aliguori | |
514 | a672b469 | aliguori | void qemu_put_byte(QEMUFile *f, int v) |
515 | a672b469 | aliguori | { |
516 | a672b469 | aliguori | if (!f->has_error && f->is_write == 0 && f->buf_index > 0) { |
517 | a672b469 | aliguori | fprintf(stderr, |
518 | a672b469 | aliguori | "Attempted to write to buffer while read buffer is not empty\n");
|
519 | a672b469 | aliguori | abort(); |
520 | a672b469 | aliguori | } |
521 | a672b469 | aliguori | |
522 | a672b469 | aliguori | f->buf[f->buf_index++] = v; |
523 | a672b469 | aliguori | f->is_write = 1;
|
524 | a672b469 | aliguori | if (f->buf_index >= IO_BUF_SIZE)
|
525 | a672b469 | aliguori | qemu_fflush(f); |
526 | a672b469 | aliguori | } |
527 | a672b469 | aliguori | |
528 | a672b469 | aliguori | int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size1) |
529 | a672b469 | aliguori | { |
530 | a672b469 | aliguori | int size, l;
|
531 | a672b469 | aliguori | |
532 | a672b469 | aliguori | if (f->is_write)
|
533 | a672b469 | aliguori | abort(); |
534 | a672b469 | aliguori | |
535 | a672b469 | aliguori | size = size1; |
536 | a672b469 | aliguori | while (size > 0) { |
537 | a672b469 | aliguori | l = f->buf_size - f->buf_index; |
538 | a672b469 | aliguori | if (l == 0) { |
539 | a672b469 | aliguori | qemu_fill_buffer(f); |
540 | a672b469 | aliguori | l = f->buf_size - f->buf_index; |
541 | a672b469 | aliguori | if (l == 0) |
542 | a672b469 | aliguori | break;
|
543 | a672b469 | aliguori | } |
544 | a672b469 | aliguori | if (l > size)
|
545 | a672b469 | aliguori | l = size; |
546 | a672b469 | aliguori | memcpy(buf, f->buf + f->buf_index, l); |
547 | a672b469 | aliguori | f->buf_index += l; |
548 | a672b469 | aliguori | buf += l; |
549 | a672b469 | aliguori | size -= l; |
550 | a672b469 | aliguori | } |
551 | a672b469 | aliguori | return size1 - size;
|
552 | a672b469 | aliguori | } |
553 | a672b469 | aliguori | |
554 | 811814bd | Juan Quintela | static int qemu_peek_byte(QEMUFile *f) |
555 | 811814bd | Juan Quintela | { |
556 | 811814bd | Juan Quintela | if (f->is_write)
|
557 | 811814bd | Juan Quintela | abort(); |
558 | 811814bd | Juan Quintela | |
559 | 811814bd | Juan Quintela | if (f->buf_index >= f->buf_size) {
|
560 | 811814bd | Juan Quintela | qemu_fill_buffer(f); |
561 | 811814bd | Juan Quintela | if (f->buf_index >= f->buf_size)
|
562 | 811814bd | Juan Quintela | return 0; |
563 | 811814bd | Juan Quintela | } |
564 | 811814bd | Juan Quintela | return f->buf[f->buf_index];
|
565 | 811814bd | Juan Quintela | } |
566 | 811814bd | Juan Quintela | |
567 | a672b469 | aliguori | int qemu_get_byte(QEMUFile *f)
|
568 | a672b469 | aliguori | { |
569 | a672b469 | aliguori | if (f->is_write)
|
570 | a672b469 | aliguori | abort(); |
571 | a672b469 | aliguori | |
572 | a672b469 | aliguori | if (f->buf_index >= f->buf_size) {
|
573 | a672b469 | aliguori | qemu_fill_buffer(f); |
574 | a672b469 | aliguori | if (f->buf_index >= f->buf_size)
|
575 | a672b469 | aliguori | return 0; |
576 | a672b469 | aliguori | } |
577 | a672b469 | aliguori | return f->buf[f->buf_index++];
|
578 | a672b469 | aliguori | } |
579 | a672b469 | aliguori | |
580 | a672b469 | aliguori | int64_t qemu_ftell(QEMUFile *f) |
581 | a672b469 | aliguori | { |
582 | a672b469 | aliguori | return f->buf_offset - f->buf_size + f->buf_index;
|
583 | a672b469 | aliguori | } |
584 | a672b469 | aliguori | |
585 | a672b469 | aliguori | int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
|
586 | a672b469 | aliguori | { |
587 | a672b469 | aliguori | if (whence == SEEK_SET) {
|
588 | a672b469 | aliguori | /* nothing to do */
|
589 | a672b469 | aliguori | } else if (whence == SEEK_CUR) { |
590 | a672b469 | aliguori | pos += qemu_ftell(f); |
591 | a672b469 | aliguori | } else {
|
592 | a672b469 | aliguori | /* SEEK_END not supported */
|
593 | a672b469 | aliguori | return -1; |
594 | a672b469 | aliguori | } |
595 | a672b469 | aliguori | if (f->put_buffer) {
|
596 | a672b469 | aliguori | qemu_fflush(f); |
597 | a672b469 | aliguori | f->buf_offset = pos; |
598 | a672b469 | aliguori | } else {
|
599 | a672b469 | aliguori | f->buf_offset = pos; |
600 | a672b469 | aliguori | f->buf_index = 0;
|
601 | a672b469 | aliguori | f->buf_size = 0;
|
602 | a672b469 | aliguori | } |
603 | a672b469 | aliguori | return pos;
|
604 | a672b469 | aliguori | } |
605 | a672b469 | aliguori | |
606 | a672b469 | aliguori | int qemu_file_rate_limit(QEMUFile *f)
|
607 | a672b469 | aliguori | { |
608 | a672b469 | aliguori | if (f->rate_limit)
|
609 | a672b469 | aliguori | return f->rate_limit(f->opaque);
|
610 | a672b469 | aliguori | |
611 | a672b469 | aliguori | return 0; |
612 | a672b469 | aliguori | } |
613 | a672b469 | aliguori | |
614 | c163b5ca | lirans@il.ibm.com | size_t qemu_file_get_rate_limit(QEMUFile *f) |
615 | c163b5ca | lirans@il.ibm.com | { |
616 | c163b5ca | lirans@il.ibm.com | if (f->get_rate_limit)
|
617 | c163b5ca | lirans@il.ibm.com | return f->get_rate_limit(f->opaque);
|
618 | c163b5ca | lirans@il.ibm.com | |
619 | c163b5ca | lirans@il.ibm.com | return 0; |
620 | c163b5ca | lirans@il.ibm.com | } |
621 | c163b5ca | lirans@il.ibm.com | |
622 | 19629537 | Glauber Costa | size_t qemu_file_set_rate_limit(QEMUFile *f, size_t new_rate) |
623 | 19629537 | Glauber Costa | { |
624 | 0bb05eaf | Glauber Costa | /* any failed or completed migration keeps its state to allow probing of
|
625 | 0bb05eaf | Glauber Costa | * migration data, but has no associated file anymore */
|
626 | 0bb05eaf | Glauber Costa | if (f && f->set_rate_limit)
|
627 | 19629537 | Glauber Costa | return f->set_rate_limit(f->opaque, new_rate);
|
628 | 19629537 | Glauber Costa | |
629 | 19629537 | Glauber Costa | return 0; |
630 | 19629537 | Glauber Costa | } |
631 | 19629537 | Glauber Costa | |
632 | a672b469 | aliguori | void qemu_put_be16(QEMUFile *f, unsigned int v) |
633 | a672b469 | aliguori | { |
634 | a672b469 | aliguori | qemu_put_byte(f, v >> 8);
|
635 | a672b469 | aliguori | qemu_put_byte(f, v); |
636 | a672b469 | aliguori | } |
637 | a672b469 | aliguori | |
638 | a672b469 | aliguori | void qemu_put_be32(QEMUFile *f, unsigned int v) |
639 | a672b469 | aliguori | { |
640 | a672b469 | aliguori | qemu_put_byte(f, v >> 24);
|
641 | a672b469 | aliguori | qemu_put_byte(f, v >> 16);
|
642 | a672b469 | aliguori | qemu_put_byte(f, v >> 8);
|
643 | a672b469 | aliguori | qemu_put_byte(f, v); |
644 | a672b469 | aliguori | } |
645 | a672b469 | aliguori | |
646 | a672b469 | aliguori | void qemu_put_be64(QEMUFile *f, uint64_t v)
|
647 | a672b469 | aliguori | { |
648 | a672b469 | aliguori | qemu_put_be32(f, v >> 32);
|
649 | a672b469 | aliguori | qemu_put_be32(f, v); |
650 | a672b469 | aliguori | } |
651 | a672b469 | aliguori | |
652 | a672b469 | aliguori | unsigned int qemu_get_be16(QEMUFile *f) |
653 | a672b469 | aliguori | { |
654 | a672b469 | aliguori | unsigned int v; |
655 | a672b469 | aliguori | v = qemu_get_byte(f) << 8;
|
656 | a672b469 | aliguori | v |= qemu_get_byte(f); |
657 | a672b469 | aliguori | return v;
|
658 | a672b469 | aliguori | } |
659 | a672b469 | aliguori | |
660 | a672b469 | aliguori | unsigned int qemu_get_be32(QEMUFile *f) |
661 | a672b469 | aliguori | { |
662 | a672b469 | aliguori | unsigned int v; |
663 | a672b469 | aliguori | v = qemu_get_byte(f) << 24;
|
664 | a672b469 | aliguori | v |= qemu_get_byte(f) << 16;
|
665 | a672b469 | aliguori | v |= qemu_get_byte(f) << 8;
|
666 | a672b469 | aliguori | v |= qemu_get_byte(f); |
667 | a672b469 | aliguori | return v;
|
668 | a672b469 | aliguori | } |
669 | a672b469 | aliguori | |
670 | a672b469 | aliguori | uint64_t qemu_get_be64(QEMUFile *f) |
671 | a672b469 | aliguori | { |
672 | a672b469 | aliguori | uint64_t v; |
673 | a672b469 | aliguori | v = (uint64_t)qemu_get_be32(f) << 32;
|
674 | a672b469 | aliguori | v |= qemu_get_be32(f); |
675 | a672b469 | aliguori | return v;
|
676 | a672b469 | aliguori | } |
677 | a672b469 | aliguori | |
678 | cdae5cfb | Gerd Hoffmann | /* bool */
|
679 | cdae5cfb | Gerd Hoffmann | |
680 | cdae5cfb | Gerd Hoffmann | static int get_bool(QEMUFile *f, void *pv, size_t size) |
681 | cdae5cfb | Gerd Hoffmann | { |
682 | cdae5cfb | Gerd Hoffmann | bool *v = pv;
|
683 | cdae5cfb | Gerd Hoffmann | *v = qemu_get_byte(f); |
684 | cdae5cfb | Gerd Hoffmann | return 0; |
685 | cdae5cfb | Gerd Hoffmann | } |
686 | cdae5cfb | Gerd Hoffmann | |
687 | cdae5cfb | Gerd Hoffmann | static void put_bool(QEMUFile *f, void *pv, size_t size) |
688 | cdae5cfb | Gerd Hoffmann | { |
689 | cdae5cfb | Gerd Hoffmann | bool *v = pv;
|
690 | cdae5cfb | Gerd Hoffmann | qemu_put_byte(f, *v); |
691 | cdae5cfb | Gerd Hoffmann | } |
692 | cdae5cfb | Gerd Hoffmann | |
693 | cdae5cfb | Gerd Hoffmann | const VMStateInfo vmstate_info_bool = {
|
694 | cdae5cfb | Gerd Hoffmann | .name = "bool",
|
695 | cdae5cfb | Gerd Hoffmann | .get = get_bool, |
696 | cdae5cfb | Gerd Hoffmann | .put = put_bool, |
697 | cdae5cfb | Gerd Hoffmann | }; |
698 | cdae5cfb | Gerd Hoffmann | |
699 | 9ed7d6ae | Juan Quintela | /* 8 bit int */
|
700 | 9ed7d6ae | Juan Quintela | |
701 | 9ed7d6ae | Juan Quintela | static int get_int8(QEMUFile *f, void *pv, size_t size) |
702 | 9ed7d6ae | Juan Quintela | { |
703 | 9ed7d6ae | Juan Quintela | int8_t *v = pv; |
704 | 9ed7d6ae | Juan Quintela | qemu_get_s8s(f, v); |
705 | 9ed7d6ae | Juan Quintela | return 0; |
706 | 9ed7d6ae | Juan Quintela | } |
707 | 9ed7d6ae | Juan Quintela | |
708 | 84e2e3eb | Juan Quintela | static void put_int8(QEMUFile *f, void *pv, size_t size) |
709 | 9ed7d6ae | Juan Quintela | { |
710 | 84e2e3eb | Juan Quintela | int8_t *v = pv; |
711 | 9ed7d6ae | Juan Quintela | qemu_put_s8s(f, v); |
712 | 9ed7d6ae | Juan Quintela | } |
713 | 9ed7d6ae | Juan Quintela | |
714 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_int8 = {
|
715 | 9ed7d6ae | Juan Quintela | .name = "int8",
|
716 | 9ed7d6ae | Juan Quintela | .get = get_int8, |
717 | 9ed7d6ae | Juan Quintela | .put = put_int8, |
718 | 9ed7d6ae | Juan Quintela | }; |
719 | 9ed7d6ae | Juan Quintela | |
720 | 9ed7d6ae | Juan Quintela | /* 16 bit int */
|
721 | 9ed7d6ae | Juan Quintela | |
722 | 9ed7d6ae | Juan Quintela | static int get_int16(QEMUFile *f, void *pv, size_t size) |
723 | 9ed7d6ae | Juan Quintela | { |
724 | 9ed7d6ae | Juan Quintela | int16_t *v = pv; |
725 | 9ed7d6ae | Juan Quintela | qemu_get_sbe16s(f, v); |
726 | 9ed7d6ae | Juan Quintela | return 0; |
727 | 9ed7d6ae | Juan Quintela | } |
728 | 9ed7d6ae | Juan Quintela | |
729 | 84e2e3eb | Juan Quintela | static void put_int16(QEMUFile *f, void *pv, size_t size) |
730 | 9ed7d6ae | Juan Quintela | { |
731 | 84e2e3eb | Juan Quintela | int16_t *v = pv; |
732 | 9ed7d6ae | Juan Quintela | qemu_put_sbe16s(f, v); |
733 | 9ed7d6ae | Juan Quintela | } |
734 | 9ed7d6ae | Juan Quintela | |
735 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_int16 = {
|
736 | 9ed7d6ae | Juan Quintela | .name = "int16",
|
737 | 9ed7d6ae | Juan Quintela | .get = get_int16, |
738 | 9ed7d6ae | Juan Quintela | .put = put_int16, |
739 | 9ed7d6ae | Juan Quintela | }; |
740 | 9ed7d6ae | Juan Quintela | |
741 | 9ed7d6ae | Juan Quintela | /* 32 bit int */
|
742 | 9ed7d6ae | Juan Quintela | |
743 | 9ed7d6ae | Juan Quintela | static int get_int32(QEMUFile *f, void *pv, size_t size) |
744 | 9ed7d6ae | Juan Quintela | { |
745 | 9ed7d6ae | Juan Quintela | int32_t *v = pv; |
746 | 9ed7d6ae | Juan Quintela | qemu_get_sbe32s(f, v); |
747 | 9ed7d6ae | Juan Quintela | return 0; |
748 | 9ed7d6ae | Juan Quintela | } |
749 | 9ed7d6ae | Juan Quintela | |
750 | 84e2e3eb | Juan Quintela | static void put_int32(QEMUFile *f, void *pv, size_t size) |
751 | 9ed7d6ae | Juan Quintela | { |
752 | 84e2e3eb | Juan Quintela | int32_t *v = pv; |
753 | 9ed7d6ae | Juan Quintela | qemu_put_sbe32s(f, v); |
754 | 9ed7d6ae | Juan Quintela | } |
755 | 9ed7d6ae | Juan Quintela | |
756 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_int32 = {
|
757 | 9ed7d6ae | Juan Quintela | .name = "int32",
|
758 | 9ed7d6ae | Juan Quintela | .get = get_int32, |
759 | 9ed7d6ae | Juan Quintela | .put = put_int32, |
760 | 9ed7d6ae | Juan Quintela | }; |
761 | 9ed7d6ae | Juan Quintela | |
762 | 82501660 | Juan Quintela | /* 32 bit int. See that the received value is the same than the one
|
763 | 82501660 | Juan Quintela | in the field */
|
764 | 82501660 | Juan Quintela | |
765 | 82501660 | Juan Quintela | static int get_int32_equal(QEMUFile *f, void *pv, size_t size) |
766 | 82501660 | Juan Quintela | { |
767 | 82501660 | Juan Quintela | int32_t *v = pv; |
768 | 82501660 | Juan Quintela | int32_t v2; |
769 | 82501660 | Juan Quintela | qemu_get_sbe32s(f, &v2); |
770 | 82501660 | Juan Quintela | |
771 | 82501660 | Juan Quintela | if (*v == v2)
|
772 | 82501660 | Juan Quintela | return 0; |
773 | 82501660 | Juan Quintela | return -EINVAL;
|
774 | 82501660 | Juan Quintela | } |
775 | 82501660 | Juan Quintela | |
776 | 82501660 | Juan Quintela | const VMStateInfo vmstate_info_int32_equal = {
|
777 | 82501660 | Juan Quintela | .name = "int32 equal",
|
778 | 82501660 | Juan Quintela | .get = get_int32_equal, |
779 | 82501660 | Juan Quintela | .put = put_int32, |
780 | 82501660 | Juan Quintela | }; |
781 | 82501660 | Juan Quintela | |
782 | 0a031e0a | Juan Quintela | /* 32 bit int. See that the received value is the less or the same
|
783 | 0a031e0a | Juan Quintela | than the one in the field */
|
784 | 0a031e0a | Juan Quintela | |
785 | 0a031e0a | Juan Quintela | static int get_int32_le(QEMUFile *f, void *pv, size_t size) |
786 | 0a031e0a | Juan Quintela | { |
787 | 0a031e0a | Juan Quintela | int32_t *old = pv; |
788 | 0a031e0a | Juan Quintela | int32_t new; |
789 | 0a031e0a | Juan Quintela | qemu_get_sbe32s(f, &new); |
790 | 0a031e0a | Juan Quintela | |
791 | 0a031e0a | Juan Quintela | if (*old <= new)
|
792 | 0a031e0a | Juan Quintela | return 0; |
793 | 0a031e0a | Juan Quintela | return -EINVAL;
|
794 | 0a031e0a | Juan Quintela | } |
795 | 0a031e0a | Juan Quintela | |
796 | 0a031e0a | Juan Quintela | const VMStateInfo vmstate_info_int32_le = {
|
797 | 0a031e0a | Juan Quintela | .name = "int32 equal",
|
798 | 0a031e0a | Juan Quintela | .get = get_int32_le, |
799 | 0a031e0a | Juan Quintela | .put = put_int32, |
800 | 0a031e0a | Juan Quintela | }; |
801 | 0a031e0a | Juan Quintela | |
802 | 9ed7d6ae | Juan Quintela | /* 64 bit int */
|
803 | 9ed7d6ae | Juan Quintela | |
804 | 9ed7d6ae | Juan Quintela | static int get_int64(QEMUFile *f, void *pv, size_t size) |
805 | 9ed7d6ae | Juan Quintela | { |
806 | 9ed7d6ae | Juan Quintela | int64_t *v = pv; |
807 | 9ed7d6ae | Juan Quintela | qemu_get_sbe64s(f, v); |
808 | 9ed7d6ae | Juan Quintela | return 0; |
809 | 9ed7d6ae | Juan Quintela | } |
810 | 9ed7d6ae | Juan Quintela | |
811 | 84e2e3eb | Juan Quintela | static void put_int64(QEMUFile *f, void *pv, size_t size) |
812 | 9ed7d6ae | Juan Quintela | { |
813 | 84e2e3eb | Juan Quintela | int64_t *v = pv; |
814 | 9ed7d6ae | Juan Quintela | qemu_put_sbe64s(f, v); |
815 | 9ed7d6ae | Juan Quintela | } |
816 | 9ed7d6ae | Juan Quintela | |
817 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_int64 = {
|
818 | 9ed7d6ae | Juan Quintela | .name = "int64",
|
819 | 9ed7d6ae | Juan Quintela | .get = get_int64, |
820 | 9ed7d6ae | Juan Quintela | .put = put_int64, |
821 | 9ed7d6ae | Juan Quintela | }; |
822 | 9ed7d6ae | Juan Quintela | |
823 | 9ed7d6ae | Juan Quintela | /* 8 bit unsigned int */
|
824 | 9ed7d6ae | Juan Quintela | |
825 | 9ed7d6ae | Juan Quintela | static int get_uint8(QEMUFile *f, void *pv, size_t size) |
826 | 9ed7d6ae | Juan Quintela | { |
827 | 9ed7d6ae | Juan Quintela | uint8_t *v = pv; |
828 | 9ed7d6ae | Juan Quintela | qemu_get_8s(f, v); |
829 | 9ed7d6ae | Juan Quintela | return 0; |
830 | 9ed7d6ae | Juan Quintela | } |
831 | 9ed7d6ae | Juan Quintela | |
832 | 84e2e3eb | Juan Quintela | static void put_uint8(QEMUFile *f, void *pv, size_t size) |
833 | 9ed7d6ae | Juan Quintela | { |
834 | 84e2e3eb | Juan Quintela | uint8_t *v = pv; |
835 | 9ed7d6ae | Juan Quintela | qemu_put_8s(f, v); |
836 | 9ed7d6ae | Juan Quintela | } |
837 | 9ed7d6ae | Juan Quintela | |
838 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_uint8 = {
|
839 | 9ed7d6ae | Juan Quintela | .name = "uint8",
|
840 | 9ed7d6ae | Juan Quintela | .get = get_uint8, |
841 | 9ed7d6ae | Juan Quintela | .put = put_uint8, |
842 | 9ed7d6ae | Juan Quintela | }; |
843 | 9ed7d6ae | Juan Quintela | |
844 | 9ed7d6ae | Juan Quintela | /* 16 bit unsigned int */
|
845 | 9ed7d6ae | Juan Quintela | |
846 | 9ed7d6ae | Juan Quintela | static int get_uint16(QEMUFile *f, void *pv, size_t size) |
847 | 9ed7d6ae | Juan Quintela | { |
848 | 9ed7d6ae | Juan Quintela | uint16_t *v = pv; |
849 | 9ed7d6ae | Juan Quintela | qemu_get_be16s(f, v); |
850 | 9ed7d6ae | Juan Quintela | return 0; |
851 | 9ed7d6ae | Juan Quintela | } |
852 | 9ed7d6ae | Juan Quintela | |
853 | 84e2e3eb | Juan Quintela | static void put_uint16(QEMUFile *f, void *pv, size_t size) |
854 | 9ed7d6ae | Juan Quintela | { |
855 | 84e2e3eb | Juan Quintela | uint16_t *v = pv; |
856 | 9ed7d6ae | Juan Quintela | qemu_put_be16s(f, v); |
857 | 9ed7d6ae | Juan Quintela | } |
858 | 9ed7d6ae | Juan Quintela | |
859 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_uint16 = {
|
860 | 9ed7d6ae | Juan Quintela | .name = "uint16",
|
861 | 9ed7d6ae | Juan Quintela | .get = get_uint16, |
862 | 9ed7d6ae | Juan Quintela | .put = put_uint16, |
863 | 9ed7d6ae | Juan Quintela | }; |
864 | 9ed7d6ae | Juan Quintela | |
865 | 9ed7d6ae | Juan Quintela | /* 32 bit unsigned int */
|
866 | 9ed7d6ae | Juan Quintela | |
867 | 9ed7d6ae | Juan Quintela | static int get_uint32(QEMUFile *f, void *pv, size_t size) |
868 | 9ed7d6ae | Juan Quintela | { |
869 | 9ed7d6ae | Juan Quintela | uint32_t *v = pv; |
870 | 9ed7d6ae | Juan Quintela | qemu_get_be32s(f, v); |
871 | 9ed7d6ae | Juan Quintela | return 0; |
872 | 9ed7d6ae | Juan Quintela | } |
873 | 9ed7d6ae | Juan Quintela | |
874 | 84e2e3eb | Juan Quintela | static void put_uint32(QEMUFile *f, void *pv, size_t size) |
875 | 9ed7d6ae | Juan Quintela | { |
876 | 84e2e3eb | Juan Quintela | uint32_t *v = pv; |
877 | 9ed7d6ae | Juan Quintela | qemu_put_be32s(f, v); |
878 | 9ed7d6ae | Juan Quintela | } |
879 | 9ed7d6ae | Juan Quintela | |
880 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_uint32 = {
|
881 | 9ed7d6ae | Juan Quintela | .name = "uint32",
|
882 | 9ed7d6ae | Juan Quintela | .get = get_uint32, |
883 | 9ed7d6ae | Juan Quintela | .put = put_uint32, |
884 | 9ed7d6ae | Juan Quintela | }; |
885 | 9ed7d6ae | Juan Quintela | |
886 | 9ed7d6ae | Juan Quintela | /* 64 bit unsigned int */
|
887 | 9ed7d6ae | Juan Quintela | |
888 | 9ed7d6ae | Juan Quintela | static int get_uint64(QEMUFile *f, void *pv, size_t size) |
889 | 9ed7d6ae | Juan Quintela | { |
890 | 9ed7d6ae | Juan Quintela | uint64_t *v = pv; |
891 | 9ed7d6ae | Juan Quintela | qemu_get_be64s(f, v); |
892 | 9ed7d6ae | Juan Quintela | return 0; |
893 | 9ed7d6ae | Juan Quintela | } |
894 | 9ed7d6ae | Juan Quintela | |
895 | 84e2e3eb | Juan Quintela | static void put_uint64(QEMUFile *f, void *pv, size_t size) |
896 | 9ed7d6ae | Juan Quintela | { |
897 | 84e2e3eb | Juan Quintela | uint64_t *v = pv; |
898 | 9ed7d6ae | Juan Quintela | qemu_put_be64s(f, v); |
899 | 9ed7d6ae | Juan Quintela | } |
900 | 9ed7d6ae | Juan Quintela | |
901 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_uint64 = {
|
902 | 9ed7d6ae | Juan Quintela | .name = "uint64",
|
903 | 9ed7d6ae | Juan Quintela | .get = get_uint64, |
904 | 9ed7d6ae | Juan Quintela | .put = put_uint64, |
905 | 9ed7d6ae | Juan Quintela | }; |
906 | 9ed7d6ae | Juan Quintela | |
907 | 80cd83e7 | Juan Quintela | /* 8 bit int. See that the received value is the same than the one
|
908 | 80cd83e7 | Juan Quintela | in the field */
|
909 | 80cd83e7 | Juan Quintela | |
910 | 80cd83e7 | Juan Quintela | static int get_uint8_equal(QEMUFile *f, void *pv, size_t size) |
911 | 80cd83e7 | Juan Quintela | { |
912 | 80cd83e7 | Juan Quintela | uint8_t *v = pv; |
913 | 80cd83e7 | Juan Quintela | uint8_t v2; |
914 | 80cd83e7 | Juan Quintela | qemu_get_8s(f, &v2); |
915 | 80cd83e7 | Juan Quintela | |
916 | 80cd83e7 | Juan Quintela | if (*v == v2)
|
917 | 80cd83e7 | Juan Quintela | return 0; |
918 | 80cd83e7 | Juan Quintela | return -EINVAL;
|
919 | 80cd83e7 | Juan Quintela | } |
920 | 80cd83e7 | Juan Quintela | |
921 | 80cd83e7 | Juan Quintela | const VMStateInfo vmstate_info_uint8_equal = {
|
922 | aa1cce69 | Juan Quintela | .name = "uint8 equal",
|
923 | 80cd83e7 | Juan Quintela | .get = get_uint8_equal, |
924 | 80cd83e7 | Juan Quintela | .put = put_uint8, |
925 | 80cd83e7 | Juan Quintela | }; |
926 | 80cd83e7 | Juan Quintela | |
927 | dc3b83a0 | Juan Quintela | /* 16 bit unsigned int int. See that the received value is the same than the one
|
928 | dc3b83a0 | Juan Quintela | in the field */
|
929 | dc3b83a0 | Juan Quintela | |
930 | dc3b83a0 | Juan Quintela | static int get_uint16_equal(QEMUFile *f, void *pv, size_t size) |
931 | dc3b83a0 | Juan Quintela | { |
932 | dc3b83a0 | Juan Quintela | uint16_t *v = pv; |
933 | dc3b83a0 | Juan Quintela | uint16_t v2; |
934 | dc3b83a0 | Juan Quintela | qemu_get_be16s(f, &v2); |
935 | dc3b83a0 | Juan Quintela | |
936 | dc3b83a0 | Juan Quintela | if (*v == v2)
|
937 | dc3b83a0 | Juan Quintela | return 0; |
938 | dc3b83a0 | Juan Quintela | return -EINVAL;
|
939 | dc3b83a0 | Juan Quintela | } |
940 | dc3b83a0 | Juan Quintela | |
941 | dc3b83a0 | Juan Quintela | const VMStateInfo vmstate_info_uint16_equal = {
|
942 | dc3b83a0 | Juan Quintela | .name = "uint16 equal",
|
943 | dc3b83a0 | Juan Quintela | .get = get_uint16_equal, |
944 | dc3b83a0 | Juan Quintela | .put = put_uint16, |
945 | dc3b83a0 | Juan Quintela | }; |
946 | dc3b83a0 | Juan Quintela | |
947 | dde0463b | Juan Quintela | /* timers */
|
948 | dde0463b | Juan Quintela | |
949 | dde0463b | Juan Quintela | static int get_timer(QEMUFile *f, void *pv, size_t size) |
950 | dde0463b | Juan Quintela | { |
951 | dde0463b | Juan Quintela | QEMUTimer *v = pv; |
952 | dde0463b | Juan Quintela | qemu_get_timer(f, v); |
953 | dde0463b | Juan Quintela | return 0; |
954 | dde0463b | Juan Quintela | } |
955 | dde0463b | Juan Quintela | |
956 | 84e2e3eb | Juan Quintela | static void put_timer(QEMUFile *f, void *pv, size_t size) |
957 | dde0463b | Juan Quintela | { |
958 | 84e2e3eb | Juan Quintela | QEMUTimer *v = pv; |
959 | dde0463b | Juan Quintela | qemu_put_timer(f, v); |
960 | dde0463b | Juan Quintela | } |
961 | dde0463b | Juan Quintela | |
962 | dde0463b | Juan Quintela | const VMStateInfo vmstate_info_timer = {
|
963 | dde0463b | Juan Quintela | .name = "timer",
|
964 | dde0463b | Juan Quintela | .get = get_timer, |
965 | dde0463b | Juan Quintela | .put = put_timer, |
966 | dde0463b | Juan Quintela | }; |
967 | dde0463b | Juan Quintela | |
968 | 6f67c50f | Juan Quintela | /* uint8_t buffers */
|
969 | 6f67c50f | Juan Quintela | |
970 | 6f67c50f | Juan Quintela | static int get_buffer(QEMUFile *f, void *pv, size_t size) |
971 | 6f67c50f | Juan Quintela | { |
972 | 6f67c50f | Juan Quintela | uint8_t *v = pv; |
973 | 6f67c50f | Juan Quintela | qemu_get_buffer(f, v, size); |
974 | 6f67c50f | Juan Quintela | return 0; |
975 | 6f67c50f | Juan Quintela | } |
976 | 6f67c50f | Juan Quintela | |
977 | 84e2e3eb | Juan Quintela | static void put_buffer(QEMUFile *f, void *pv, size_t size) |
978 | 6f67c50f | Juan Quintela | { |
979 | 84e2e3eb | Juan Quintela | uint8_t *v = pv; |
980 | 6f67c50f | Juan Quintela | qemu_put_buffer(f, v, size); |
981 | 6f67c50f | Juan Quintela | } |
982 | 6f67c50f | Juan Quintela | |
983 | 6f67c50f | Juan Quintela | const VMStateInfo vmstate_info_buffer = {
|
984 | 6f67c50f | Juan Quintela | .name = "buffer",
|
985 | 6f67c50f | Juan Quintela | .get = get_buffer, |
986 | 6f67c50f | Juan Quintela | .put = put_buffer, |
987 | 6f67c50f | Juan Quintela | }; |
988 | 6f67c50f | Juan Quintela | |
989 | 76507c75 | Juan Quintela | /* unused buffers: space that was used for some fields that are
|
990 | 76507c75 | Juan Quintela | not usefull anymore */
|
991 | 76507c75 | Juan Quintela | |
992 | 76507c75 | Juan Quintela | static int get_unused_buffer(QEMUFile *f, void *pv, size_t size) |
993 | 76507c75 | Juan Quintela | { |
994 | 21174c34 | Jan Kiszka | uint8_t buf[1024];
|
995 | 21174c34 | Jan Kiszka | int block_len;
|
996 | 21174c34 | Jan Kiszka | |
997 | 21174c34 | Jan Kiszka | while (size > 0) { |
998 | 21174c34 | Jan Kiszka | block_len = MIN(sizeof(buf), size);
|
999 | 21174c34 | Jan Kiszka | size -= block_len; |
1000 | 21174c34 | Jan Kiszka | qemu_get_buffer(f, buf, block_len); |
1001 | 21174c34 | Jan Kiszka | } |
1002 | 21174c34 | Jan Kiszka | return 0; |
1003 | 76507c75 | Juan Quintela | } |
1004 | 76507c75 | Juan Quintela | |
1005 | 76507c75 | Juan Quintela | static void put_unused_buffer(QEMUFile *f, void *pv, size_t size) |
1006 | 76507c75 | Juan Quintela | { |
1007 | 21174c34 | Jan Kiszka | static const uint8_t buf[1024]; |
1008 | 21174c34 | Jan Kiszka | int block_len;
|
1009 | 21174c34 | Jan Kiszka | |
1010 | 21174c34 | Jan Kiszka | while (size > 0) { |
1011 | 21174c34 | Jan Kiszka | block_len = MIN(sizeof(buf), size);
|
1012 | 21174c34 | Jan Kiszka | size -= block_len; |
1013 | 21174c34 | Jan Kiszka | qemu_put_buffer(f, buf, block_len); |
1014 | 21174c34 | Jan Kiszka | } |
1015 | 76507c75 | Juan Quintela | } |
1016 | 76507c75 | Juan Quintela | |
1017 | 76507c75 | Juan Quintela | const VMStateInfo vmstate_info_unused_buffer = {
|
1018 | 76507c75 | Juan Quintela | .name = "unused_buffer",
|
1019 | 76507c75 | Juan Quintela | .get = get_unused_buffer, |
1020 | 76507c75 | Juan Quintela | .put = put_unused_buffer, |
1021 | 76507c75 | Juan Quintela | }; |
1022 | 76507c75 | Juan Quintela | |
1023 | 7685ee6a | Alex Williamson | typedef struct CompatEntry { |
1024 | 7685ee6a | Alex Williamson | char idstr[256]; |
1025 | 7685ee6a | Alex Williamson | int instance_id;
|
1026 | 7685ee6a | Alex Williamson | } CompatEntry; |
1027 | 7685ee6a | Alex Williamson | |
1028 | a672b469 | aliguori | typedef struct SaveStateEntry { |
1029 | 72cf2d4f | Blue Swirl | QTAILQ_ENTRY(SaveStateEntry) entry; |
1030 | a672b469 | aliguori | char idstr[256]; |
1031 | a672b469 | aliguori | int instance_id;
|
1032 | 4d2ffa08 | Jan Kiszka | int alias_id;
|
1033 | a672b469 | aliguori | int version_id;
|
1034 | a672b469 | aliguori | int section_id;
|
1035 | c163b5ca | lirans@il.ibm.com | SaveSetParamsHandler *set_params; |
1036 | a672b469 | aliguori | SaveLiveStateHandler *save_live_state; |
1037 | a672b469 | aliguori | SaveStateHandler *save_state; |
1038 | a672b469 | aliguori | LoadStateHandler *load_state; |
1039 | 9ed7d6ae | Juan Quintela | const VMStateDescription *vmsd;
|
1040 | a672b469 | aliguori | void *opaque;
|
1041 | 7685ee6a | Alex Williamson | CompatEntry *compat; |
1042 | 24312968 | Cam Macdonell | int no_migrate;
|
1043 | a672b469 | aliguori | } SaveStateEntry; |
1044 | a672b469 | aliguori | |
1045 | c163b5ca | lirans@il.ibm.com | |
1046 | 72cf2d4f | Blue Swirl | static QTAILQ_HEAD(savevm_handlers, SaveStateEntry) savevm_handlers =
|
1047 | 72cf2d4f | Blue Swirl | QTAILQ_HEAD_INITIALIZER(savevm_handlers); |
1048 | 9ed7d6ae | Juan Quintela | static int global_section_id; |
1049 | a672b469 | aliguori | |
1050 | 8718e999 | Juan Quintela | static int calculate_new_instance_id(const char *idstr) |
1051 | 8718e999 | Juan Quintela | { |
1052 | 8718e999 | Juan Quintela | SaveStateEntry *se; |
1053 | 8718e999 | Juan Quintela | int instance_id = 0; |
1054 | 8718e999 | Juan Quintela | |
1055 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1056 | 8718e999 | Juan Quintela | if (strcmp(idstr, se->idstr) == 0 |
1057 | 8718e999 | Juan Quintela | && instance_id <= se->instance_id) { |
1058 | 8718e999 | Juan Quintela | instance_id = se->instance_id + 1;
|
1059 | 8718e999 | Juan Quintela | } |
1060 | 8718e999 | Juan Quintela | } |
1061 | 8718e999 | Juan Quintela | return instance_id;
|
1062 | 8718e999 | Juan Quintela | } |
1063 | 8718e999 | Juan Quintela | |
1064 | 7685ee6a | Alex Williamson | static int calculate_compat_instance_id(const char *idstr) |
1065 | 7685ee6a | Alex Williamson | { |
1066 | 7685ee6a | Alex Williamson | SaveStateEntry *se; |
1067 | 7685ee6a | Alex Williamson | int instance_id = 0; |
1068 | 7685ee6a | Alex Williamson | |
1069 | 7685ee6a | Alex Williamson | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1070 | 7685ee6a | Alex Williamson | if (!se->compat)
|
1071 | 7685ee6a | Alex Williamson | continue;
|
1072 | 7685ee6a | Alex Williamson | |
1073 | 7685ee6a | Alex Williamson | if (strcmp(idstr, se->compat->idstr) == 0 |
1074 | 7685ee6a | Alex Williamson | && instance_id <= se->compat->instance_id) { |
1075 | 7685ee6a | Alex Williamson | instance_id = se->compat->instance_id + 1;
|
1076 | 7685ee6a | Alex Williamson | } |
1077 | 7685ee6a | Alex Williamson | } |
1078 | 7685ee6a | Alex Williamson | return instance_id;
|
1079 | 7685ee6a | Alex Williamson | } |
1080 | 7685ee6a | Alex Williamson | |
1081 | a672b469 | aliguori | /* TODO: Individual devices generally have very little idea about the rest
|
1082 | a672b469 | aliguori | of the system, so instance_id should be removed/replaced.
|
1083 | a672b469 | aliguori | Meanwhile pass -1 as instance_id if you do not already have a clearly
|
1084 | a672b469 | aliguori | distinguishing id for all instances of your device class. */
|
1085 | 0be71e32 | Alex Williamson | int register_savevm_live(DeviceState *dev,
|
1086 | 0be71e32 | Alex Williamson | const char *idstr, |
1087 | a672b469 | aliguori | int instance_id,
|
1088 | a672b469 | aliguori | int version_id,
|
1089 | c163b5ca | lirans@il.ibm.com | SaveSetParamsHandler *set_params, |
1090 | a672b469 | aliguori | SaveLiveStateHandler *save_live_state, |
1091 | a672b469 | aliguori | SaveStateHandler *save_state, |
1092 | a672b469 | aliguori | LoadStateHandler *load_state, |
1093 | a672b469 | aliguori | void *opaque)
|
1094 | a672b469 | aliguori | { |
1095 | 8718e999 | Juan Quintela | SaveStateEntry *se; |
1096 | a672b469 | aliguori | |
1097 | c163b5ca | lirans@il.ibm.com | se = qemu_mallocz(sizeof(SaveStateEntry));
|
1098 | a672b469 | aliguori | se->version_id = version_id; |
1099 | a672b469 | aliguori | se->section_id = global_section_id++; |
1100 | c163b5ca | lirans@il.ibm.com | se->set_params = set_params; |
1101 | a672b469 | aliguori | se->save_live_state = save_live_state; |
1102 | a672b469 | aliguori | se->save_state = save_state; |
1103 | a672b469 | aliguori | se->load_state = load_state; |
1104 | a672b469 | aliguori | se->opaque = opaque; |
1105 | 9ed7d6ae | Juan Quintela | se->vmsd = NULL;
|
1106 | 24312968 | Cam Macdonell | se->no_migrate = 0;
|
1107 | a672b469 | aliguori | |
1108 | 7685ee6a | Alex Williamson | if (dev && dev->parent_bus && dev->parent_bus->info->get_dev_path) {
|
1109 | 7685ee6a | Alex Williamson | char *id = dev->parent_bus->info->get_dev_path(dev);
|
1110 | 7685ee6a | Alex Williamson | if (id) {
|
1111 | 7685ee6a | Alex Williamson | pstrcpy(se->idstr, sizeof(se->idstr), id);
|
1112 | 7685ee6a | Alex Williamson | pstrcat(se->idstr, sizeof(se->idstr), "/"); |
1113 | 7685ee6a | Alex Williamson | qemu_free(id); |
1114 | 7685ee6a | Alex Williamson | |
1115 | 7685ee6a | Alex Williamson | se->compat = qemu_mallocz(sizeof(CompatEntry));
|
1116 | 7685ee6a | Alex Williamson | pstrcpy(se->compat->idstr, sizeof(se->compat->idstr), idstr);
|
1117 | 7685ee6a | Alex Williamson | se->compat->instance_id = instance_id == -1 ?
|
1118 | 7685ee6a | Alex Williamson | calculate_compat_instance_id(idstr) : instance_id; |
1119 | 7685ee6a | Alex Williamson | instance_id = -1;
|
1120 | 7685ee6a | Alex Williamson | } |
1121 | 7685ee6a | Alex Williamson | } |
1122 | 7685ee6a | Alex Williamson | pstrcat(se->idstr, sizeof(se->idstr), idstr);
|
1123 | 7685ee6a | Alex Williamson | |
1124 | 8718e999 | Juan Quintela | if (instance_id == -1) { |
1125 | 7685ee6a | Alex Williamson | se->instance_id = calculate_new_instance_id(se->idstr); |
1126 | 8718e999 | Juan Quintela | } else {
|
1127 | 8718e999 | Juan Quintela | se->instance_id = instance_id; |
1128 | a672b469 | aliguori | } |
1129 | 7685ee6a | Alex Williamson | assert(!se->compat || se->instance_id == 0);
|
1130 | 8718e999 | Juan Quintela | /* add at the end of list */
|
1131 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&savevm_handlers, se, entry); |
1132 | a672b469 | aliguori | return 0; |
1133 | a672b469 | aliguori | } |
1134 | a672b469 | aliguori | |
1135 | 0be71e32 | Alex Williamson | int register_savevm(DeviceState *dev,
|
1136 | 0be71e32 | Alex Williamson | const char *idstr, |
1137 | a672b469 | aliguori | int instance_id,
|
1138 | a672b469 | aliguori | int version_id,
|
1139 | a672b469 | aliguori | SaveStateHandler *save_state, |
1140 | a672b469 | aliguori | LoadStateHandler *load_state, |
1141 | a672b469 | aliguori | void *opaque)
|
1142 | a672b469 | aliguori | { |
1143 | 0be71e32 | Alex Williamson | return register_savevm_live(dev, idstr, instance_id, version_id,
|
1144 | c163b5ca | lirans@il.ibm.com | NULL, NULL, save_state, load_state, opaque); |
1145 | a672b469 | aliguori | } |
1146 | a672b469 | aliguori | |
1147 | 0be71e32 | Alex Williamson | void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque) |
1148 | 41bd13af | aliguori | { |
1149 | 8718e999 | Juan Quintela | SaveStateEntry *se, *new_se; |
1150 | 7685ee6a | Alex Williamson | char id[256] = ""; |
1151 | 7685ee6a | Alex Williamson | |
1152 | 7685ee6a | Alex Williamson | if (dev && dev->parent_bus && dev->parent_bus->info->get_dev_path) {
|
1153 | 7685ee6a | Alex Williamson | char *path = dev->parent_bus->info->get_dev_path(dev);
|
1154 | 7685ee6a | Alex Williamson | if (path) {
|
1155 | 7685ee6a | Alex Williamson | pstrcpy(id, sizeof(id), path);
|
1156 | 7685ee6a | Alex Williamson | pstrcat(id, sizeof(id), "/"); |
1157 | 7685ee6a | Alex Williamson | qemu_free(path); |
1158 | 7685ee6a | Alex Williamson | } |
1159 | 7685ee6a | Alex Williamson | } |
1160 | 7685ee6a | Alex Williamson | pstrcat(id, sizeof(id), idstr);
|
1161 | 41bd13af | aliguori | |
1162 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(se, &savevm_handlers, entry, new_se) { |
1163 | 7685ee6a | Alex Williamson | if (strcmp(se->idstr, id) == 0 && se->opaque == opaque) { |
1164 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&savevm_handlers, se, entry); |
1165 | 69e58af9 | Alex Williamson | if (se->compat) {
|
1166 | 69e58af9 | Alex Williamson | qemu_free(se->compat); |
1167 | 69e58af9 | Alex Williamson | } |
1168 | 8718e999 | Juan Quintela | qemu_free(se); |
1169 | 41bd13af | aliguori | } |
1170 | 41bd13af | aliguori | } |
1171 | 41bd13af | aliguori | } |
1172 | 41bd13af | aliguori | |
1173 | 24312968 | Cam Macdonell | /* mark a device as not to be migrated, that is the device should be
|
1174 | 24312968 | Cam Macdonell | unplugged before migration */
|
1175 | 24312968 | Cam Macdonell | void register_device_unmigratable(DeviceState *dev, const char *idstr, |
1176 | 24312968 | Cam Macdonell | void *opaque)
|
1177 | 24312968 | Cam Macdonell | { |
1178 | 24312968 | Cam Macdonell | SaveStateEntry *se; |
1179 | 24312968 | Cam Macdonell | char id[256] = ""; |
1180 | 24312968 | Cam Macdonell | |
1181 | 24312968 | Cam Macdonell | if (dev && dev->parent_bus && dev->parent_bus->info->get_dev_path) {
|
1182 | 24312968 | Cam Macdonell | char *path = dev->parent_bus->info->get_dev_path(dev);
|
1183 | 24312968 | Cam Macdonell | if (path) {
|
1184 | 24312968 | Cam Macdonell | pstrcpy(id, sizeof(id), path);
|
1185 | 24312968 | Cam Macdonell | pstrcat(id, sizeof(id), "/"); |
1186 | 24312968 | Cam Macdonell | qemu_free(path); |
1187 | 24312968 | Cam Macdonell | } |
1188 | 24312968 | Cam Macdonell | } |
1189 | 24312968 | Cam Macdonell | pstrcat(id, sizeof(id), idstr);
|
1190 | 24312968 | Cam Macdonell | |
1191 | 24312968 | Cam Macdonell | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1192 | 24312968 | Cam Macdonell | if (strcmp(se->idstr, id) == 0 && se->opaque == opaque) { |
1193 | 24312968 | Cam Macdonell | se->no_migrate = 1;
|
1194 | 24312968 | Cam Macdonell | } |
1195 | 24312968 | Cam Macdonell | } |
1196 | 24312968 | Cam Macdonell | } |
1197 | 24312968 | Cam Macdonell | |
1198 | 0be71e32 | Alex Williamson | int vmstate_register_with_alias_id(DeviceState *dev, int instance_id, |
1199 | 4d2ffa08 | Jan Kiszka | const VMStateDescription *vmsd,
|
1200 | 4d2ffa08 | Jan Kiszka | void *opaque, int alias_id, |
1201 | 4d2ffa08 | Jan Kiszka | int required_for_version)
|
1202 | 9ed7d6ae | Juan Quintela | { |
1203 | 8718e999 | Juan Quintela | SaveStateEntry *se; |
1204 | 9ed7d6ae | Juan Quintela | |
1205 | 4d2ffa08 | Jan Kiszka | /* If this triggers, alias support can be dropped for the vmsd. */
|
1206 | 4d2ffa08 | Jan Kiszka | assert(alias_id == -1 || required_for_version >= vmsd->minimum_version_id);
|
1207 | 4d2ffa08 | Jan Kiszka | |
1208 | c163b5ca | lirans@il.ibm.com | se = qemu_mallocz(sizeof(SaveStateEntry));
|
1209 | 9ed7d6ae | Juan Quintela | se->version_id = vmsd->version_id; |
1210 | 9ed7d6ae | Juan Quintela | se->section_id = global_section_id++; |
1211 | 9ed7d6ae | Juan Quintela | se->save_live_state = NULL;
|
1212 | 9ed7d6ae | Juan Quintela | se->save_state = NULL;
|
1213 | 9ed7d6ae | Juan Quintela | se->load_state = NULL;
|
1214 | 9ed7d6ae | Juan Quintela | se->opaque = opaque; |
1215 | 9ed7d6ae | Juan Quintela | se->vmsd = vmsd; |
1216 | 4d2ffa08 | Jan Kiszka | se->alias_id = alias_id; |
1217 | 9ed7d6ae | Juan Quintela | |
1218 | 7685ee6a | Alex Williamson | if (dev && dev->parent_bus && dev->parent_bus->info->get_dev_path) {
|
1219 | 7685ee6a | Alex Williamson | char *id = dev->parent_bus->info->get_dev_path(dev);
|
1220 | 7685ee6a | Alex Williamson | if (id) {
|
1221 | 7685ee6a | Alex Williamson | pstrcpy(se->idstr, sizeof(se->idstr), id);
|
1222 | 7685ee6a | Alex Williamson | pstrcat(se->idstr, sizeof(se->idstr), "/"); |
1223 | 7685ee6a | Alex Williamson | qemu_free(id); |
1224 | 7685ee6a | Alex Williamson | |
1225 | 7685ee6a | Alex Williamson | se->compat = qemu_mallocz(sizeof(CompatEntry));
|
1226 | 7685ee6a | Alex Williamson | pstrcpy(se->compat->idstr, sizeof(se->compat->idstr), vmsd->name);
|
1227 | 7685ee6a | Alex Williamson | se->compat->instance_id = instance_id == -1 ?
|
1228 | 7685ee6a | Alex Williamson | calculate_compat_instance_id(vmsd->name) : instance_id; |
1229 | 7685ee6a | Alex Williamson | instance_id = -1;
|
1230 | 7685ee6a | Alex Williamson | } |
1231 | 7685ee6a | Alex Williamson | } |
1232 | 7685ee6a | Alex Williamson | pstrcat(se->idstr, sizeof(se->idstr), vmsd->name);
|
1233 | 7685ee6a | Alex Williamson | |
1234 | 8718e999 | Juan Quintela | if (instance_id == -1) { |
1235 | 7685ee6a | Alex Williamson | se->instance_id = calculate_new_instance_id(se->idstr); |
1236 | 8718e999 | Juan Quintela | } else {
|
1237 | 8718e999 | Juan Quintela | se->instance_id = instance_id; |
1238 | 9ed7d6ae | Juan Quintela | } |
1239 | 7685ee6a | Alex Williamson | assert(!se->compat || se->instance_id == 0);
|
1240 | 8718e999 | Juan Quintela | /* add at the end of list */
|
1241 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&savevm_handlers, se, entry); |
1242 | 9ed7d6ae | Juan Quintela | return 0; |
1243 | 9ed7d6ae | Juan Quintela | } |
1244 | 9ed7d6ae | Juan Quintela | |
1245 | 0be71e32 | Alex Williamson | int vmstate_register(DeviceState *dev, int instance_id, |
1246 | 0be71e32 | Alex Williamson | const VMStateDescription *vmsd, void *opaque) |
1247 | 4d2ffa08 | Jan Kiszka | { |
1248 | 0be71e32 | Alex Williamson | return vmstate_register_with_alias_id(dev, instance_id, vmsd,
|
1249 | 0be71e32 | Alex Williamson | opaque, -1, 0); |
1250 | 4d2ffa08 | Jan Kiszka | } |
1251 | 4d2ffa08 | Jan Kiszka | |
1252 | 0be71e32 | Alex Williamson | void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd, |
1253 | 0be71e32 | Alex Williamson | void *opaque)
|
1254 | 9ed7d6ae | Juan Quintela | { |
1255 | 1eb7538b | Juan Quintela | SaveStateEntry *se, *new_se; |
1256 | 1eb7538b | Juan Quintela | |
1257 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(se, &savevm_handlers, entry, new_se) { |
1258 | 1eb7538b | Juan Quintela | if (se->vmsd == vmsd && se->opaque == opaque) {
|
1259 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&savevm_handlers, se, entry); |
1260 | 69e58af9 | Alex Williamson | if (se->compat) {
|
1261 | 69e58af9 | Alex Williamson | qemu_free(se->compat); |
1262 | 69e58af9 | Alex Williamson | } |
1263 | 1eb7538b | Juan Quintela | qemu_free(se); |
1264 | 1eb7538b | Juan Quintela | } |
1265 | 1eb7538b | Juan Quintela | } |
1266 | 9ed7d6ae | Juan Quintela | } |
1267 | 9ed7d6ae | Juan Quintela | |
1268 | 811814bd | Juan Quintela | static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, |
1269 | 811814bd | Juan Quintela | void *opaque);
|
1270 | 811814bd | Juan Quintela | static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd, |
1271 | 811814bd | Juan Quintela | void *opaque);
|
1272 | 811814bd | Juan Quintela | |
1273 | 9ed7d6ae | Juan Quintela | int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, |
1274 | 9ed7d6ae | Juan Quintela | void *opaque, int version_id) |
1275 | 9ed7d6ae | Juan Quintela | { |
1276 | 9ed7d6ae | Juan Quintela | VMStateField *field = vmsd->fields; |
1277 | 811814bd | Juan Quintela | int ret;
|
1278 | 9ed7d6ae | Juan Quintela | |
1279 | 9ed7d6ae | Juan Quintela | if (version_id > vmsd->version_id) {
|
1280 | 9ed7d6ae | Juan Quintela | return -EINVAL;
|
1281 | 9ed7d6ae | Juan Quintela | } |
1282 | 9ed7d6ae | Juan Quintela | if (version_id < vmsd->minimum_version_id_old) {
|
1283 | 9ed7d6ae | Juan Quintela | return -EINVAL;
|
1284 | 9ed7d6ae | Juan Quintela | } |
1285 | 9ed7d6ae | Juan Quintela | if (version_id < vmsd->minimum_version_id) {
|
1286 | 9ed7d6ae | Juan Quintela | return vmsd->load_state_old(f, opaque, version_id);
|
1287 | 9ed7d6ae | Juan Quintela | } |
1288 | fd4d52de | Juan Quintela | if (vmsd->pre_load) {
|
1289 | fd4d52de | Juan Quintela | int ret = vmsd->pre_load(opaque);
|
1290 | fd4d52de | Juan Quintela | if (ret)
|
1291 | fd4d52de | Juan Quintela | return ret;
|
1292 | fd4d52de | Juan Quintela | } |
1293 | 9ed7d6ae | Juan Quintela | while(field->name) {
|
1294 | f11f6a5f | Juan Quintela | if ((field->field_exists &&
|
1295 | f11f6a5f | Juan Quintela | field->field_exists(opaque, version_id)) || |
1296 | f11f6a5f | Juan Quintela | (!field->field_exists && |
1297 | f11f6a5f | Juan Quintela | field->version_id <= version_id)) { |
1298 | f752a6aa | Juan Quintela | void *base_addr = opaque + field->offset;
|
1299 | 811814bd | Juan Quintela | int i, n_elems = 1; |
1300 | e61a1e0a | Juan Quintela | int size = field->size;
|
1301 | 9ed7d6ae | Juan Quintela | |
1302 | e61a1e0a | Juan Quintela | if (field->flags & VMS_VBUFFER) {
|
1303 | e61a1e0a | Juan Quintela | size = *(int32_t *)(opaque+field->size_offset); |
1304 | 33599e2a | Juan Quintela | if (field->flags & VMS_MULTIPLY) {
|
1305 | 33599e2a | Juan Quintela | size *= field->size; |
1306 | 33599e2a | Juan Quintela | } |
1307 | e61a1e0a | Juan Quintela | } |
1308 | f752a6aa | Juan Quintela | if (field->flags & VMS_ARRAY) {
|
1309 | f752a6aa | Juan Quintela | n_elems = field->num; |
1310 | d6698281 | Juan Quintela | } else if (field->flags & VMS_VARRAY_INT32) { |
1311 | d6698281 | Juan Quintela | n_elems = *(int32_t *)(opaque+field->num_offset); |
1312 | bdb4941d | Juan Quintela | } else if (field->flags & VMS_VARRAY_UINT16) { |
1313 | bdb4941d | Juan Quintela | n_elems = *(uint16_t *)(opaque+field->num_offset); |
1314 | f752a6aa | Juan Quintela | } |
1315 | dde0463b | Juan Quintela | if (field->flags & VMS_POINTER) {
|
1316 | e61a1e0a | Juan Quintela | base_addr = *(void **)base_addr + field->start;
|
1317 | dde0463b | Juan Quintela | } |
1318 | f752a6aa | Juan Quintela | for (i = 0; i < n_elems; i++) { |
1319 | e61a1e0a | Juan Quintela | void *addr = base_addr + size * i;
|
1320 | ec245e21 | Juan Quintela | |
1321 | 19df438b | Juan Quintela | if (field->flags & VMS_ARRAY_OF_POINTER) {
|
1322 | 19df438b | Juan Quintela | addr = *(void **)addr;
|
1323 | 19df438b | Juan Quintela | } |
1324 | ec245e21 | Juan Quintela | if (field->flags & VMS_STRUCT) {
|
1325 | fa3aad24 | Juan Quintela | ret = vmstate_load_state(f, field->vmsd, addr, field->vmsd->version_id); |
1326 | ec245e21 | Juan Quintela | } else {
|
1327 | e61a1e0a | Juan Quintela | ret = field->info->get(f, addr, size); |
1328 | ec245e21 | Juan Quintela | |
1329 | ec245e21 | Juan Quintela | } |
1330 | f752a6aa | Juan Quintela | if (ret < 0) { |
1331 | f752a6aa | Juan Quintela | return ret;
|
1332 | f752a6aa | Juan Quintela | } |
1333 | 9ed7d6ae | Juan Quintela | } |
1334 | 9ed7d6ae | Juan Quintela | } |
1335 | 9ed7d6ae | Juan Quintela | field++; |
1336 | 9ed7d6ae | Juan Quintela | } |
1337 | 811814bd | Juan Quintela | ret = vmstate_subsection_load(f, vmsd, opaque); |
1338 | 811814bd | Juan Quintela | if (ret != 0) { |
1339 | 811814bd | Juan Quintela | return ret;
|
1340 | 811814bd | Juan Quintela | } |
1341 | 752ff2fa | Juan Quintela | if (vmsd->post_load) {
|
1342 | e59fb374 | Juan Quintela | return vmsd->post_load(opaque, version_id);
|
1343 | 752ff2fa | Juan Quintela | } |
1344 | 9ed7d6ae | Juan Quintela | return 0; |
1345 | 9ed7d6ae | Juan Quintela | } |
1346 | 9ed7d6ae | Juan Quintela | |
1347 | 9ed7d6ae | Juan Quintela | void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, |
1348 | 84e2e3eb | Juan Quintela | void *opaque)
|
1349 | 9ed7d6ae | Juan Quintela | { |
1350 | 9ed7d6ae | Juan Quintela | VMStateField *field = vmsd->fields; |
1351 | 9ed7d6ae | Juan Quintela | |
1352 | 8fb0791d | Juan Quintela | if (vmsd->pre_save) {
|
1353 | 8fb0791d | Juan Quintela | vmsd->pre_save(opaque); |
1354 | 8fb0791d | Juan Quintela | } |
1355 | 9ed7d6ae | Juan Quintela | while(field->name) {
|
1356 | f11f6a5f | Juan Quintela | if (!field->field_exists ||
|
1357 | f11f6a5f | Juan Quintela | field->field_exists(opaque, vmsd->version_id)) { |
1358 | f11f6a5f | Juan Quintela | void *base_addr = opaque + field->offset;
|
1359 | f11f6a5f | Juan Quintela | int i, n_elems = 1; |
1360 | e61a1e0a | Juan Quintela | int size = field->size;
|
1361 | dde0463b | Juan Quintela | |
1362 | e61a1e0a | Juan Quintela | if (field->flags & VMS_VBUFFER) {
|
1363 | e61a1e0a | Juan Quintela | size = *(int32_t *)(opaque+field->size_offset); |
1364 | 33599e2a | Juan Quintela | if (field->flags & VMS_MULTIPLY) {
|
1365 | 33599e2a | Juan Quintela | size *= field->size; |
1366 | 33599e2a | Juan Quintela | } |
1367 | e61a1e0a | Juan Quintela | } |
1368 | f11f6a5f | Juan Quintela | if (field->flags & VMS_ARRAY) {
|
1369 | f11f6a5f | Juan Quintela | n_elems = field->num; |
1370 | d6698281 | Juan Quintela | } else if (field->flags & VMS_VARRAY_INT32) { |
1371 | d6698281 | Juan Quintela | n_elems = *(int32_t *)(opaque+field->num_offset); |
1372 | bdb4941d | Juan Quintela | } else if (field->flags & VMS_VARRAY_UINT16) { |
1373 | bdb4941d | Juan Quintela | n_elems = *(uint16_t *)(opaque+field->num_offset); |
1374 | f11f6a5f | Juan Quintela | } |
1375 | f11f6a5f | Juan Quintela | if (field->flags & VMS_POINTER) {
|
1376 | e61a1e0a | Juan Quintela | base_addr = *(void **)base_addr + field->start;
|
1377 | f11f6a5f | Juan Quintela | } |
1378 | f11f6a5f | Juan Quintela | for (i = 0; i < n_elems; i++) { |
1379 | e61a1e0a | Juan Quintela | void *addr = base_addr + size * i;
|
1380 | ec245e21 | Juan Quintela | |
1381 | 8595387e | Juan Quintela | if (field->flags & VMS_ARRAY_OF_POINTER) {
|
1382 | 8595387e | Juan Quintela | addr = *(void **)addr;
|
1383 | 8595387e | Juan Quintela | } |
1384 | f11f6a5f | Juan Quintela | if (field->flags & VMS_STRUCT) {
|
1385 | f11f6a5f | Juan Quintela | vmstate_save_state(f, field->vmsd, addr); |
1386 | f11f6a5f | Juan Quintela | } else {
|
1387 | e61a1e0a | Juan Quintela | field->info->put(f, addr, size); |
1388 | f11f6a5f | Juan Quintela | } |
1389 | ec245e21 | Juan Quintela | } |
1390 | dde0463b | Juan Quintela | } |
1391 | 9ed7d6ae | Juan Quintela | field++; |
1392 | 9ed7d6ae | Juan Quintela | } |
1393 | 811814bd | Juan Quintela | vmstate_subsection_save(f, vmsd, opaque); |
1394 | 9ed7d6ae | Juan Quintela | } |
1395 | 9ed7d6ae | Juan Quintela | |
1396 | 4082be4d | Juan Quintela | static int vmstate_load(QEMUFile *f, SaveStateEntry *se, int version_id) |
1397 | 4082be4d | Juan Quintela | { |
1398 | 9ed7d6ae | Juan Quintela | if (!se->vmsd) { /* Old style */ |
1399 | 9ed7d6ae | Juan Quintela | return se->load_state(f, se->opaque, version_id);
|
1400 | 9ed7d6ae | Juan Quintela | } |
1401 | 9ed7d6ae | Juan Quintela | return vmstate_load_state(f, se->vmsd, se->opaque, version_id);
|
1402 | 4082be4d | Juan Quintela | } |
1403 | 4082be4d | Juan Quintela | |
1404 | 24312968 | Cam Macdonell | static int vmstate_save(QEMUFile *f, SaveStateEntry *se) |
1405 | 4082be4d | Juan Quintela | { |
1406 | 24312968 | Cam Macdonell | if (se->no_migrate) {
|
1407 | 24312968 | Cam Macdonell | return -1; |
1408 | 24312968 | Cam Macdonell | } |
1409 | 24312968 | Cam Macdonell | |
1410 | 9ed7d6ae | Juan Quintela | if (!se->vmsd) { /* Old style */ |
1411 | 9ed7d6ae | Juan Quintela | se->save_state(f, se->opaque); |
1412 | 24312968 | Cam Macdonell | return 0; |
1413 | 9ed7d6ae | Juan Quintela | } |
1414 | 9ed7d6ae | Juan Quintela | vmstate_save_state(f,se->vmsd, se->opaque); |
1415 | 24312968 | Cam Macdonell | |
1416 | 24312968 | Cam Macdonell | return 0; |
1417 | 4082be4d | Juan Quintela | } |
1418 | 4082be4d | Juan Quintela | |
1419 | a672b469 | aliguori | #define QEMU_VM_FILE_MAGIC 0x5145564d |
1420 | a672b469 | aliguori | #define QEMU_VM_FILE_VERSION_COMPAT 0x00000002 |
1421 | a672b469 | aliguori | #define QEMU_VM_FILE_VERSION 0x00000003 |
1422 | a672b469 | aliguori | |
1423 | a672b469 | aliguori | #define QEMU_VM_EOF 0x00 |
1424 | a672b469 | aliguori | #define QEMU_VM_SECTION_START 0x01 |
1425 | a672b469 | aliguori | #define QEMU_VM_SECTION_PART 0x02 |
1426 | a672b469 | aliguori | #define QEMU_VM_SECTION_END 0x03 |
1427 | a672b469 | aliguori | #define QEMU_VM_SECTION_FULL 0x04 |
1428 | 811814bd | Juan Quintela | #define QEMU_VM_SUBSECTION 0x05 |
1429 | a672b469 | aliguori | |
1430 | f327aa0c | Jan Kiszka | int qemu_savevm_state_begin(Monitor *mon, QEMUFile *f, int blk_enable, |
1431 | f327aa0c | Jan Kiszka | int shared)
|
1432 | a672b469 | aliguori | { |
1433 | a672b469 | aliguori | SaveStateEntry *se; |
1434 | a672b469 | aliguori | |
1435 | c163b5ca | lirans@il.ibm.com | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1436 | c163b5ca | lirans@il.ibm.com | if(se->set_params == NULL) { |
1437 | c163b5ca | lirans@il.ibm.com | continue;
|
1438 | c163b5ca | lirans@il.ibm.com | } |
1439 | c163b5ca | lirans@il.ibm.com | se->set_params(blk_enable, shared, se->opaque); |
1440 | c163b5ca | lirans@il.ibm.com | } |
1441 | c163b5ca | lirans@il.ibm.com | |
1442 | a672b469 | aliguori | qemu_put_be32(f, QEMU_VM_FILE_MAGIC); |
1443 | a672b469 | aliguori | qemu_put_be32(f, QEMU_VM_FILE_VERSION); |
1444 | a672b469 | aliguori | |
1445 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1446 | a672b469 | aliguori | int len;
|
1447 | a672b469 | aliguori | |
1448 | a672b469 | aliguori | if (se->save_live_state == NULL) |
1449 | a672b469 | aliguori | continue;
|
1450 | a672b469 | aliguori | |
1451 | a672b469 | aliguori | /* Section type */
|
1452 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_SECTION_START); |
1453 | a672b469 | aliguori | qemu_put_be32(f, se->section_id); |
1454 | a672b469 | aliguori | |
1455 | a672b469 | aliguori | /* ID string */
|
1456 | a672b469 | aliguori | len = strlen(se->idstr); |
1457 | a672b469 | aliguori | qemu_put_byte(f, len); |
1458 | a672b469 | aliguori | qemu_put_buffer(f, (uint8_t *)se->idstr, len); |
1459 | a672b469 | aliguori | |
1460 | a672b469 | aliguori | qemu_put_be32(f, se->instance_id); |
1461 | a672b469 | aliguori | qemu_put_be32(f, se->version_id); |
1462 | a672b469 | aliguori | |
1463 | f327aa0c | Jan Kiszka | se->save_live_state(mon, f, QEMU_VM_SECTION_START, se->opaque); |
1464 | a672b469 | aliguori | } |
1465 | a672b469 | aliguori | |
1466 | 4ec7fcc7 | Jan Kiszka | if (qemu_file_has_error(f)) {
|
1467 | f327aa0c | Jan Kiszka | qemu_savevm_state_cancel(mon, f); |
1468 | a672b469 | aliguori | return -EIO;
|
1469 | 4ec7fcc7 | Jan Kiszka | } |
1470 | a672b469 | aliguori | |
1471 | a672b469 | aliguori | return 0; |
1472 | a672b469 | aliguori | } |
1473 | a672b469 | aliguori | |
1474 | f327aa0c | Jan Kiszka | int qemu_savevm_state_iterate(Monitor *mon, QEMUFile *f)
|
1475 | a672b469 | aliguori | { |
1476 | a672b469 | aliguori | SaveStateEntry *se; |
1477 | a672b469 | aliguori | int ret = 1; |
1478 | a672b469 | aliguori | |
1479 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1480 | a672b469 | aliguori | if (se->save_live_state == NULL) |
1481 | a672b469 | aliguori | continue;
|
1482 | a672b469 | aliguori | |
1483 | a672b469 | aliguori | /* Section type */
|
1484 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_SECTION_PART); |
1485 | a672b469 | aliguori | qemu_put_be32(f, se->section_id); |
1486 | a672b469 | aliguori | |
1487 | 90697be8 | Jan Kiszka | ret = se->save_live_state(mon, f, QEMU_VM_SECTION_PART, se->opaque); |
1488 | 90697be8 | Jan Kiszka | if (!ret) {
|
1489 | 90697be8 | Jan Kiszka | /* Do not proceed to the next vmstate before this one reported
|
1490 | 90697be8 | Jan Kiszka | completion of the current stage. This serializes the migration
|
1491 | 90697be8 | Jan Kiszka | and reduces the probability that a faster changing state is
|
1492 | 90697be8 | Jan Kiszka | synchronized over and over again. */
|
1493 | 90697be8 | Jan Kiszka | break;
|
1494 | 90697be8 | Jan Kiszka | } |
1495 | a672b469 | aliguori | } |
1496 | a672b469 | aliguori | |
1497 | a672b469 | aliguori | if (ret)
|
1498 | a672b469 | aliguori | return 1; |
1499 | a672b469 | aliguori | |
1500 | 4ec7fcc7 | Jan Kiszka | if (qemu_file_has_error(f)) {
|
1501 | f327aa0c | Jan Kiszka | qemu_savevm_state_cancel(mon, f); |
1502 | a672b469 | aliguori | return -EIO;
|
1503 | 4ec7fcc7 | Jan Kiszka | } |
1504 | a672b469 | aliguori | |
1505 | a672b469 | aliguori | return 0; |
1506 | a672b469 | aliguori | } |
1507 | a672b469 | aliguori | |
1508 | f327aa0c | Jan Kiszka | int qemu_savevm_state_complete(Monitor *mon, QEMUFile *f)
|
1509 | a672b469 | aliguori | { |
1510 | a672b469 | aliguori | SaveStateEntry *se; |
1511 | 24312968 | Cam Macdonell | int r;
|
1512 | a672b469 | aliguori | |
1513 | ea375f9a | Jan Kiszka | cpu_synchronize_all_states(); |
1514 | ea375f9a | Jan Kiszka | |
1515 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1516 | a672b469 | aliguori | if (se->save_live_state == NULL) |
1517 | a672b469 | aliguori | continue;
|
1518 | a672b469 | aliguori | |
1519 | a672b469 | aliguori | /* Section type */
|
1520 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_SECTION_END); |
1521 | a672b469 | aliguori | qemu_put_be32(f, se->section_id); |
1522 | a672b469 | aliguori | |
1523 | f327aa0c | Jan Kiszka | se->save_live_state(mon, f, QEMU_VM_SECTION_END, se->opaque); |
1524 | a672b469 | aliguori | } |
1525 | a672b469 | aliguori | |
1526 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1527 | a672b469 | aliguori | int len;
|
1528 | a672b469 | aliguori | |
1529 | 9ed7d6ae | Juan Quintela | if (se->save_state == NULL && se->vmsd == NULL) |
1530 | a672b469 | aliguori | continue;
|
1531 | a672b469 | aliguori | |
1532 | a672b469 | aliguori | /* Section type */
|
1533 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_SECTION_FULL); |
1534 | a672b469 | aliguori | qemu_put_be32(f, se->section_id); |
1535 | a672b469 | aliguori | |
1536 | a672b469 | aliguori | /* ID string */
|
1537 | a672b469 | aliguori | len = strlen(se->idstr); |
1538 | a672b469 | aliguori | qemu_put_byte(f, len); |
1539 | a672b469 | aliguori | qemu_put_buffer(f, (uint8_t *)se->idstr, len); |
1540 | a672b469 | aliguori | |
1541 | a672b469 | aliguori | qemu_put_be32(f, se->instance_id); |
1542 | a672b469 | aliguori | qemu_put_be32(f, se->version_id); |
1543 | a672b469 | aliguori | |
1544 | 24312968 | Cam Macdonell | r = vmstate_save(f, se); |
1545 | 24312968 | Cam Macdonell | if (r < 0) { |
1546 | 24312968 | Cam Macdonell | monitor_printf(mon, "cannot migrate with device '%s'\n", se->idstr);
|
1547 | 24312968 | Cam Macdonell | return r;
|
1548 | 24312968 | Cam Macdonell | } |
1549 | a672b469 | aliguori | } |
1550 | a672b469 | aliguori | |
1551 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_EOF); |
1552 | a672b469 | aliguori | |
1553 | a672b469 | aliguori | if (qemu_file_has_error(f))
|
1554 | a672b469 | aliguori | return -EIO;
|
1555 | a672b469 | aliguori | |
1556 | a672b469 | aliguori | return 0; |
1557 | a672b469 | aliguori | } |
1558 | a672b469 | aliguori | |
1559 | f327aa0c | Jan Kiszka | void qemu_savevm_state_cancel(Monitor *mon, QEMUFile *f)
|
1560 | 4ec7fcc7 | Jan Kiszka | { |
1561 | 4ec7fcc7 | Jan Kiszka | SaveStateEntry *se; |
1562 | 4ec7fcc7 | Jan Kiszka | |
1563 | 4ec7fcc7 | Jan Kiszka | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1564 | 4ec7fcc7 | Jan Kiszka | if (se->save_live_state) {
|
1565 | f327aa0c | Jan Kiszka | se->save_live_state(mon, f, -1, se->opaque);
|
1566 | 4ec7fcc7 | Jan Kiszka | } |
1567 | 4ec7fcc7 | Jan Kiszka | } |
1568 | 4ec7fcc7 | Jan Kiszka | } |
1569 | 4ec7fcc7 | Jan Kiszka | |
1570 | f327aa0c | Jan Kiszka | static int qemu_savevm_state(Monitor *mon, QEMUFile *f) |
1571 | a672b469 | aliguori | { |
1572 | a672b469 | aliguori | int saved_vm_running;
|
1573 | a672b469 | aliguori | int ret;
|
1574 | a672b469 | aliguori | |
1575 | a672b469 | aliguori | saved_vm_running = vm_running; |
1576 | a672b469 | aliguori | vm_stop(0);
|
1577 | a672b469 | aliguori | |
1578 | a672b469 | aliguori | bdrv_flush_all(); |
1579 | a672b469 | aliguori | |
1580 | f327aa0c | Jan Kiszka | ret = qemu_savevm_state_begin(mon, f, 0, 0); |
1581 | a672b469 | aliguori | if (ret < 0) |
1582 | a672b469 | aliguori | goto out;
|
1583 | a672b469 | aliguori | |
1584 | a672b469 | aliguori | do {
|
1585 | f327aa0c | Jan Kiszka | ret = qemu_savevm_state_iterate(mon, f); |
1586 | a672b469 | aliguori | if (ret < 0) |
1587 | a672b469 | aliguori | goto out;
|
1588 | a672b469 | aliguori | } while (ret == 0); |
1589 | a672b469 | aliguori | |
1590 | f327aa0c | Jan Kiszka | ret = qemu_savevm_state_complete(mon, f); |
1591 | a672b469 | aliguori | |
1592 | a672b469 | aliguori | out:
|
1593 | a672b469 | aliguori | if (qemu_file_has_error(f))
|
1594 | a672b469 | aliguori | ret = -EIO; |
1595 | a672b469 | aliguori | |
1596 | a672b469 | aliguori | if (!ret && saved_vm_running)
|
1597 | a672b469 | aliguori | vm_start(); |
1598 | a672b469 | aliguori | |
1599 | a672b469 | aliguori | return ret;
|
1600 | a672b469 | aliguori | } |
1601 | a672b469 | aliguori | |
1602 | a672b469 | aliguori | static SaveStateEntry *find_se(const char *idstr, int instance_id) |
1603 | a672b469 | aliguori | { |
1604 | a672b469 | aliguori | SaveStateEntry *se; |
1605 | a672b469 | aliguori | |
1606 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1607 | a672b469 | aliguori | if (!strcmp(se->idstr, idstr) &&
|
1608 | 4d2ffa08 | Jan Kiszka | (instance_id == se->instance_id || |
1609 | 4d2ffa08 | Jan Kiszka | instance_id == se->alias_id)) |
1610 | a672b469 | aliguori | return se;
|
1611 | 7685ee6a | Alex Williamson | /* Migrating from an older version? */
|
1612 | 7685ee6a | Alex Williamson | if (strstr(se->idstr, idstr) && se->compat) {
|
1613 | 7685ee6a | Alex Williamson | if (!strcmp(se->compat->idstr, idstr) &&
|
1614 | 7685ee6a | Alex Williamson | (instance_id == se->compat->instance_id || |
1615 | 7685ee6a | Alex Williamson | instance_id == se->alias_id)) |
1616 | 7685ee6a | Alex Williamson | return se;
|
1617 | 7685ee6a | Alex Williamson | } |
1618 | a672b469 | aliguori | } |
1619 | a672b469 | aliguori | return NULL; |
1620 | a672b469 | aliguori | } |
1621 | a672b469 | aliguori | |
1622 | 811814bd | Juan Quintela | static const VMStateDescription *vmstate_get_subsection(const VMStateSubsection *sub, char *idstr) |
1623 | 811814bd | Juan Quintela | { |
1624 | 811814bd | Juan Quintela | while(sub && sub->needed) {
|
1625 | 811814bd | Juan Quintela | if (strcmp(idstr, sub->vmsd->name) == 0) { |
1626 | 811814bd | Juan Quintela | return sub->vmsd;
|
1627 | 811814bd | Juan Quintela | } |
1628 | 811814bd | Juan Quintela | sub++; |
1629 | 811814bd | Juan Quintela | } |
1630 | 811814bd | Juan Quintela | return NULL; |
1631 | 811814bd | Juan Quintela | } |
1632 | 811814bd | Juan Quintela | |
1633 | 811814bd | Juan Quintela | static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd, |
1634 | 811814bd | Juan Quintela | void *opaque)
|
1635 | 811814bd | Juan Quintela | { |
1636 | 811814bd | Juan Quintela | while (qemu_peek_byte(f) == QEMU_VM_SUBSECTION) {
|
1637 | 811814bd | Juan Quintela | char idstr[256]; |
1638 | 811814bd | Juan Quintela | int ret;
|
1639 | 49a2942d | Blue Swirl | uint8_t version_id, len; |
1640 | 811814bd | Juan Quintela | const VMStateDescription *sub_vmsd;
|
1641 | 811814bd | Juan Quintela | |
1642 | 49a2942d | Blue Swirl | qemu_get_byte(f); /* subsection */
|
1643 | 811814bd | Juan Quintela | len = qemu_get_byte(f); |
1644 | 811814bd | Juan Quintela | qemu_get_buffer(f, (uint8_t *)idstr, len); |
1645 | 811814bd | Juan Quintela | idstr[len] = 0;
|
1646 | 811814bd | Juan Quintela | version_id = qemu_get_be32(f); |
1647 | 811814bd | Juan Quintela | |
1648 | 811814bd | Juan Quintela | sub_vmsd = vmstate_get_subsection(vmsd->subsections, idstr); |
1649 | 811814bd | Juan Quintela | if (sub_vmsd == NULL) { |
1650 | 811814bd | Juan Quintela | return -ENOENT;
|
1651 | 811814bd | Juan Quintela | } |
1652 | 811814bd | Juan Quintela | ret = vmstate_load_state(f, sub_vmsd, opaque, version_id); |
1653 | 811814bd | Juan Quintela | if (ret) {
|
1654 | 811814bd | Juan Quintela | return ret;
|
1655 | 811814bd | Juan Quintela | } |
1656 | 811814bd | Juan Quintela | } |
1657 | 811814bd | Juan Quintela | return 0; |
1658 | 811814bd | Juan Quintela | } |
1659 | 811814bd | Juan Quintela | |
1660 | 811814bd | Juan Quintela | static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, |
1661 | 811814bd | Juan Quintela | void *opaque)
|
1662 | 811814bd | Juan Quintela | { |
1663 | 811814bd | Juan Quintela | const VMStateSubsection *sub = vmsd->subsections;
|
1664 | 811814bd | Juan Quintela | |
1665 | 811814bd | Juan Quintela | while (sub && sub->needed) {
|
1666 | 811814bd | Juan Quintela | if (sub->needed(opaque)) {
|
1667 | 811814bd | Juan Quintela | const VMStateDescription *vmsd = sub->vmsd;
|
1668 | 811814bd | Juan Quintela | uint8_t len; |
1669 | 811814bd | Juan Quintela | |
1670 | 811814bd | Juan Quintela | qemu_put_byte(f, QEMU_VM_SUBSECTION); |
1671 | 811814bd | Juan Quintela | len = strlen(vmsd->name); |
1672 | 811814bd | Juan Quintela | qemu_put_byte(f, len); |
1673 | 811814bd | Juan Quintela | qemu_put_buffer(f, (uint8_t *)vmsd->name, len); |
1674 | 811814bd | Juan Quintela | qemu_put_be32(f, vmsd->version_id); |
1675 | 811814bd | Juan Quintela | vmstate_save_state(f, vmsd, opaque); |
1676 | 811814bd | Juan Quintela | } |
1677 | 811814bd | Juan Quintela | sub++; |
1678 | 811814bd | Juan Quintela | } |
1679 | 811814bd | Juan Quintela | } |
1680 | 811814bd | Juan Quintela | |
1681 | a672b469 | aliguori | typedef struct LoadStateEntry { |
1682 | 72cf2d4f | Blue Swirl | QLIST_ENTRY(LoadStateEntry) entry; |
1683 | a672b469 | aliguori | SaveStateEntry *se; |
1684 | a672b469 | aliguori | int section_id;
|
1685 | a672b469 | aliguori | int version_id;
|
1686 | a672b469 | aliguori | } LoadStateEntry; |
1687 | a672b469 | aliguori | |
1688 | a672b469 | aliguori | int qemu_loadvm_state(QEMUFile *f)
|
1689 | a672b469 | aliguori | { |
1690 | 72cf2d4f | Blue Swirl | QLIST_HEAD(, LoadStateEntry) loadvm_handlers = |
1691 | 72cf2d4f | Blue Swirl | QLIST_HEAD_INITIALIZER(loadvm_handlers); |
1692 | f4dbb8dd | Juan Quintela | LoadStateEntry *le, *new_le; |
1693 | a672b469 | aliguori | uint8_t section_type; |
1694 | a672b469 | aliguori | unsigned int v; |
1695 | a672b469 | aliguori | int ret;
|
1696 | a672b469 | aliguori | |
1697 | a672b469 | aliguori | v = qemu_get_be32(f); |
1698 | a672b469 | aliguori | if (v != QEMU_VM_FILE_MAGIC)
|
1699 | a672b469 | aliguori | return -EINVAL;
|
1700 | a672b469 | aliguori | |
1701 | a672b469 | aliguori | v = qemu_get_be32(f); |
1702 | bbfe1408 | Juan Quintela | if (v == QEMU_VM_FILE_VERSION_COMPAT) {
|
1703 | bbfe1408 | Juan Quintela | fprintf(stderr, "SaveVM v2 format is obsolete and don't work anymore\n");
|
1704 | bbfe1408 | Juan Quintela | return -ENOTSUP;
|
1705 | bbfe1408 | Juan Quintela | } |
1706 | a672b469 | aliguori | if (v != QEMU_VM_FILE_VERSION)
|
1707 | a672b469 | aliguori | return -ENOTSUP;
|
1708 | a672b469 | aliguori | |
1709 | a672b469 | aliguori | while ((section_type = qemu_get_byte(f)) != QEMU_VM_EOF) {
|
1710 | a672b469 | aliguori | uint32_t instance_id, version_id, section_id; |
1711 | a672b469 | aliguori | SaveStateEntry *se; |
1712 | a672b469 | aliguori | char idstr[257]; |
1713 | a672b469 | aliguori | int len;
|
1714 | a672b469 | aliguori | |
1715 | a672b469 | aliguori | switch (section_type) {
|
1716 | a672b469 | aliguori | case QEMU_VM_SECTION_START:
|
1717 | a672b469 | aliguori | case QEMU_VM_SECTION_FULL:
|
1718 | a672b469 | aliguori | /* Read section start */
|
1719 | a672b469 | aliguori | section_id = qemu_get_be32(f); |
1720 | a672b469 | aliguori | len = qemu_get_byte(f); |
1721 | a672b469 | aliguori | qemu_get_buffer(f, (uint8_t *)idstr, len); |
1722 | a672b469 | aliguori | idstr[len] = 0;
|
1723 | a672b469 | aliguori | instance_id = qemu_get_be32(f); |
1724 | a672b469 | aliguori | version_id = qemu_get_be32(f); |
1725 | a672b469 | aliguori | |
1726 | a672b469 | aliguori | /* Find savevm section */
|
1727 | a672b469 | aliguori | se = find_se(idstr, instance_id); |
1728 | a672b469 | aliguori | if (se == NULL) { |
1729 | a672b469 | aliguori | fprintf(stderr, "Unknown savevm section or instance '%s' %d\n", idstr, instance_id);
|
1730 | a672b469 | aliguori | ret = -EINVAL; |
1731 | a672b469 | aliguori | goto out;
|
1732 | a672b469 | aliguori | } |
1733 | a672b469 | aliguori | |
1734 | a672b469 | aliguori | /* Validate version */
|
1735 | a672b469 | aliguori | if (version_id > se->version_id) {
|
1736 | a672b469 | aliguori | fprintf(stderr, "savevm: unsupported version %d for '%s' v%d\n",
|
1737 | a672b469 | aliguori | version_id, idstr, se->version_id); |
1738 | a672b469 | aliguori | ret = -EINVAL; |
1739 | a672b469 | aliguori | goto out;
|
1740 | a672b469 | aliguori | } |
1741 | a672b469 | aliguori | |
1742 | a672b469 | aliguori | /* Add entry */
|
1743 | a672b469 | aliguori | le = qemu_mallocz(sizeof(*le));
|
1744 | a672b469 | aliguori | |
1745 | a672b469 | aliguori | le->se = se; |
1746 | a672b469 | aliguori | le->section_id = section_id; |
1747 | a672b469 | aliguori | le->version_id = version_id; |
1748 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&loadvm_handlers, le, entry); |
1749 | a672b469 | aliguori | |
1750 | 4082be4d | Juan Quintela | ret = vmstate_load(f, le->se, le->version_id); |
1751 | b5a22e4a | Juan Quintela | if (ret < 0) { |
1752 | b5a22e4a | Juan Quintela | fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
|
1753 | b5a22e4a | Juan Quintela | instance_id, idstr); |
1754 | b5a22e4a | Juan Quintela | goto out;
|
1755 | b5a22e4a | Juan Quintela | } |
1756 | a672b469 | aliguori | break;
|
1757 | a672b469 | aliguori | case QEMU_VM_SECTION_PART:
|
1758 | a672b469 | aliguori | case QEMU_VM_SECTION_END:
|
1759 | a672b469 | aliguori | section_id = qemu_get_be32(f); |
1760 | a672b469 | aliguori | |
1761 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(le, &loadvm_handlers, entry) { |
1762 | f4dbb8dd | Juan Quintela | if (le->section_id == section_id) {
|
1763 | f4dbb8dd | Juan Quintela | break;
|
1764 | f4dbb8dd | Juan Quintela | } |
1765 | f4dbb8dd | Juan Quintela | } |
1766 | a672b469 | aliguori | if (le == NULL) { |
1767 | a672b469 | aliguori | fprintf(stderr, "Unknown savevm section %d\n", section_id);
|
1768 | a672b469 | aliguori | ret = -EINVAL; |
1769 | a672b469 | aliguori | goto out;
|
1770 | a672b469 | aliguori | } |
1771 | a672b469 | aliguori | |
1772 | 4082be4d | Juan Quintela | ret = vmstate_load(f, le->se, le->version_id); |
1773 | b5a22e4a | Juan Quintela | if (ret < 0) { |
1774 | b5a22e4a | Juan Quintela | fprintf(stderr, "qemu: warning: error while loading state section id %d\n",
|
1775 | b5a22e4a | Juan Quintela | section_id); |
1776 | b5a22e4a | Juan Quintela | goto out;
|
1777 | b5a22e4a | Juan Quintela | } |
1778 | a672b469 | aliguori | break;
|
1779 | a672b469 | aliguori | default:
|
1780 | a672b469 | aliguori | fprintf(stderr, "Unknown savevm section type %d\n", section_type);
|
1781 | a672b469 | aliguori | ret = -EINVAL; |
1782 | a672b469 | aliguori | goto out;
|
1783 | a672b469 | aliguori | } |
1784 | a672b469 | aliguori | } |
1785 | a672b469 | aliguori | |
1786 | ea375f9a | Jan Kiszka | cpu_synchronize_all_post_init(); |
1787 | ea375f9a | Jan Kiszka | |
1788 | a672b469 | aliguori | ret = 0;
|
1789 | a672b469 | aliguori | |
1790 | a672b469 | aliguori | out:
|
1791 | 72cf2d4f | Blue Swirl | QLIST_FOREACH_SAFE(le, &loadvm_handlers, entry, new_le) { |
1792 | 72cf2d4f | Blue Swirl | QLIST_REMOVE(le, entry); |
1793 | a672b469 | aliguori | qemu_free(le); |
1794 | a672b469 | aliguori | } |
1795 | a672b469 | aliguori | |
1796 | a672b469 | aliguori | if (qemu_file_has_error(f))
|
1797 | a672b469 | aliguori | ret = -EIO; |
1798 | a672b469 | aliguori | |
1799 | a672b469 | aliguori | return ret;
|
1800 | a672b469 | aliguori | } |
1801 | a672b469 | aliguori | |
1802 | a672b469 | aliguori | static int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info, |
1803 | a672b469 | aliguori | const char *name) |
1804 | a672b469 | aliguori | { |
1805 | a672b469 | aliguori | QEMUSnapshotInfo *sn_tab, *sn; |
1806 | a672b469 | aliguori | int nb_sns, i, ret;
|
1807 | a672b469 | aliguori | |
1808 | a672b469 | aliguori | ret = -ENOENT; |
1809 | a672b469 | aliguori | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
1810 | a672b469 | aliguori | if (nb_sns < 0) |
1811 | a672b469 | aliguori | return ret;
|
1812 | a672b469 | aliguori | for(i = 0; i < nb_sns; i++) { |
1813 | a672b469 | aliguori | sn = &sn_tab[i]; |
1814 | a672b469 | aliguori | if (!strcmp(sn->id_str, name) || !strcmp(sn->name, name)) {
|
1815 | a672b469 | aliguori | *sn_info = *sn; |
1816 | a672b469 | aliguori | ret = 0;
|
1817 | a672b469 | aliguori | break;
|
1818 | a672b469 | aliguori | } |
1819 | a672b469 | aliguori | } |
1820 | a672b469 | aliguori | qemu_free(sn_tab); |
1821 | a672b469 | aliguori | return ret;
|
1822 | a672b469 | aliguori | } |
1823 | a672b469 | aliguori | |
1824 | cb499fb2 | Kevin Wolf | /*
|
1825 | cb499fb2 | Kevin Wolf | * Deletes snapshots of a given name in all opened images.
|
1826 | cb499fb2 | Kevin Wolf | */
|
1827 | cb499fb2 | Kevin Wolf | static int del_existing_snapshots(Monitor *mon, const char *name) |
1828 | cb499fb2 | Kevin Wolf | { |
1829 | cb499fb2 | Kevin Wolf | BlockDriverState *bs; |
1830 | cb499fb2 | Kevin Wolf | QEMUSnapshotInfo sn1, *snapshot = &sn1; |
1831 | cb499fb2 | Kevin Wolf | int ret;
|
1832 | cb499fb2 | Kevin Wolf | |
1833 | dbc13590 | Markus Armbruster | bs = NULL;
|
1834 | dbc13590 | Markus Armbruster | while ((bs = bdrv_next(bs))) {
|
1835 | cb499fb2 | Kevin Wolf | if (bdrv_can_snapshot(bs) &&
|
1836 | cb499fb2 | Kevin Wolf | bdrv_snapshot_find(bs, snapshot, name) >= 0)
|
1837 | cb499fb2 | Kevin Wolf | { |
1838 | cb499fb2 | Kevin Wolf | ret = bdrv_snapshot_delete(bs, name); |
1839 | cb499fb2 | Kevin Wolf | if (ret < 0) { |
1840 | cb499fb2 | Kevin Wolf | monitor_printf(mon, |
1841 | cb499fb2 | Kevin Wolf | "Error while deleting snapshot on '%s'\n",
|
1842 | cb499fb2 | Kevin Wolf | bdrv_get_device_name(bs)); |
1843 | cb499fb2 | Kevin Wolf | return -1; |
1844 | cb499fb2 | Kevin Wolf | } |
1845 | cb499fb2 | Kevin Wolf | } |
1846 | cb499fb2 | Kevin Wolf | } |
1847 | cb499fb2 | Kevin Wolf | |
1848 | cb499fb2 | Kevin Wolf | return 0; |
1849 | cb499fb2 | Kevin Wolf | } |
1850 | cb499fb2 | Kevin Wolf | |
1851 | d54908a5 | Luiz Capitulino | void do_savevm(Monitor *mon, const QDict *qdict) |
1852 | a672b469 | aliguori | { |
1853 | a672b469 | aliguori | BlockDriverState *bs, *bs1; |
1854 | a672b469 | aliguori | QEMUSnapshotInfo sn1, *sn = &sn1, old_sn1, *old_sn = &old_sn1; |
1855 | cb499fb2 | Kevin Wolf | int ret;
|
1856 | a672b469 | aliguori | QEMUFile *f; |
1857 | a672b469 | aliguori | int saved_vm_running;
|
1858 | 2d22b18f | aliguori | uint32_t vm_state_size; |
1859 | a672b469 | aliguori | #ifdef _WIN32
|
1860 | a672b469 | aliguori | struct _timeb tb;
|
1861 | 7d631a11 | Miguel Di Ciurcio Filho | struct tm *ptm;
|
1862 | a672b469 | aliguori | #else
|
1863 | a672b469 | aliguori | struct timeval tv;
|
1864 | 7d631a11 | Miguel Di Ciurcio Filho | struct tm tm;
|
1865 | a672b469 | aliguori | #endif
|
1866 | d54908a5 | Luiz Capitulino | const char *name = qdict_get_try_str(qdict, "name"); |
1867 | a672b469 | aliguori | |
1868 | feeee5ac | Miguel Di Ciurcio Filho | /* Verify if there is a device that doesn't support snapshots and is writable */
|
1869 | dbc13590 | Markus Armbruster | bs = NULL;
|
1870 | dbc13590 | Markus Armbruster | while ((bs = bdrv_next(bs))) {
|
1871 | feeee5ac | Miguel Di Ciurcio Filho | |
1872 | feeee5ac | Miguel Di Ciurcio Filho | if (bdrv_is_removable(bs) || bdrv_is_read_only(bs)) {
|
1873 | feeee5ac | Miguel Di Ciurcio Filho | continue;
|
1874 | feeee5ac | Miguel Di Ciurcio Filho | } |
1875 | feeee5ac | Miguel Di Ciurcio Filho | |
1876 | feeee5ac | Miguel Di Ciurcio Filho | if (!bdrv_can_snapshot(bs)) {
|
1877 | feeee5ac | Miguel Di Ciurcio Filho | monitor_printf(mon, "Device '%s' is writable but does not support snapshots.\n",
|
1878 | feeee5ac | Miguel Di Ciurcio Filho | bdrv_get_device_name(bs)); |
1879 | feeee5ac | Miguel Di Ciurcio Filho | return;
|
1880 | feeee5ac | Miguel Di Ciurcio Filho | } |
1881 | feeee5ac | Miguel Di Ciurcio Filho | } |
1882 | feeee5ac | Miguel Di Ciurcio Filho | |
1883 | f9092b10 | Markus Armbruster | bs = bdrv_snapshots(); |
1884 | a672b469 | aliguori | if (!bs) {
|
1885 | 376253ec | aliguori | monitor_printf(mon, "No block device can accept snapshots\n");
|
1886 | a672b469 | aliguori | return;
|
1887 | a672b469 | aliguori | } |
1888 | a672b469 | aliguori | /* ??? Should this occur after vm_stop? */
|
1889 | a672b469 | aliguori | qemu_aio_flush(); |
1890 | a672b469 | aliguori | |
1891 | a672b469 | aliguori | saved_vm_running = vm_running; |
1892 | a672b469 | aliguori | vm_stop(0);
|
1893 | a672b469 | aliguori | |
1894 | cb499fb2 | Kevin Wolf | memset(sn, 0, sizeof(*sn)); |
1895 | a672b469 | aliguori | |
1896 | a672b469 | aliguori | /* fill auxiliary fields */
|
1897 | a672b469 | aliguori | #ifdef _WIN32
|
1898 | a672b469 | aliguori | _ftime(&tb); |
1899 | a672b469 | aliguori | sn->date_sec = tb.time; |
1900 | a672b469 | aliguori | sn->date_nsec = tb.millitm * 1000000;
|
1901 | a672b469 | aliguori | #else
|
1902 | a672b469 | aliguori | gettimeofday(&tv, NULL);
|
1903 | a672b469 | aliguori | sn->date_sec = tv.tv_sec; |
1904 | a672b469 | aliguori | sn->date_nsec = tv.tv_usec * 1000;
|
1905 | a672b469 | aliguori | #endif
|
1906 | a672b469 | aliguori | sn->vm_clock_nsec = qemu_get_clock(vm_clock); |
1907 | a672b469 | aliguori | |
1908 | 7d631a11 | Miguel Di Ciurcio Filho | if (name) {
|
1909 | 7d631a11 | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_find(bs, old_sn, name); |
1910 | 7d631a11 | Miguel Di Ciurcio Filho | if (ret >= 0) { |
1911 | 7d631a11 | Miguel Di Ciurcio Filho | pstrcpy(sn->name, sizeof(sn->name), old_sn->name);
|
1912 | 7d631a11 | Miguel Di Ciurcio Filho | pstrcpy(sn->id_str, sizeof(sn->id_str), old_sn->id_str);
|
1913 | 7d631a11 | Miguel Di Ciurcio Filho | } else {
|
1914 | 7d631a11 | Miguel Di Ciurcio Filho | pstrcpy(sn->name, sizeof(sn->name), name);
|
1915 | 7d631a11 | Miguel Di Ciurcio Filho | } |
1916 | 7d631a11 | Miguel Di Ciurcio Filho | } else {
|
1917 | 7d631a11 | Miguel Di Ciurcio Filho | #ifdef _WIN32
|
1918 | 7d631a11 | Miguel Di Ciurcio Filho | ptm = localtime(&tb.time); |
1919 | 7d631a11 | Miguel Di Ciurcio Filho | strftime(sn->name, sizeof(sn->name), "vm-%Y%m%d%H%M%S", ptm); |
1920 | 7d631a11 | Miguel Di Ciurcio Filho | #else
|
1921 | d7d9b528 | Blue Swirl | /* cast below needed for OpenBSD where tv_sec is still 'long' */
|
1922 | d7d9b528 | Blue Swirl | localtime_r((const time_t *)&tv.tv_sec, &tm);
|
1923 | 7d631a11 | Miguel Di Ciurcio Filho | strftime(sn->name, sizeof(sn->name), "vm-%Y%m%d%H%M%S", &tm); |
1924 | 7d631a11 | Miguel Di Ciurcio Filho | #endif
|
1925 | 7d631a11 | Miguel Di Ciurcio Filho | } |
1926 | 7d631a11 | Miguel Di Ciurcio Filho | |
1927 | cb499fb2 | Kevin Wolf | /* Delete old snapshots of the same name */
|
1928 | f139a412 | Marcelo Tosatti | if (name && del_existing_snapshots(mon, name) < 0) { |
1929 | cb499fb2 | Kevin Wolf | goto the_end;
|
1930 | cb499fb2 | Kevin Wolf | } |
1931 | cb499fb2 | Kevin Wolf | |
1932 | a672b469 | aliguori | /* save the VM state */
|
1933 | 45566e9c | Christoph Hellwig | f = qemu_fopen_bdrv(bs, 1);
|
1934 | a672b469 | aliguori | if (!f) {
|
1935 | 376253ec | aliguori | monitor_printf(mon, "Could not open VM state file\n");
|
1936 | a672b469 | aliguori | goto the_end;
|
1937 | a672b469 | aliguori | } |
1938 | f327aa0c | Jan Kiszka | ret = qemu_savevm_state(mon, f); |
1939 | 2d22b18f | aliguori | vm_state_size = qemu_ftell(f); |
1940 | a672b469 | aliguori | qemu_fclose(f); |
1941 | a672b469 | aliguori | if (ret < 0) { |
1942 | 376253ec | aliguori | monitor_printf(mon, "Error %d while writing VM\n", ret);
|
1943 | a672b469 | aliguori | goto the_end;
|
1944 | a672b469 | aliguori | } |
1945 | a672b469 | aliguori | |
1946 | a672b469 | aliguori | /* create the snapshots */
|
1947 | a672b469 | aliguori | |
1948 | dbc13590 | Markus Armbruster | bs1 = NULL;
|
1949 | dbc13590 | Markus Armbruster | while ((bs1 = bdrv_next(bs1))) {
|
1950 | feeee5ac | Miguel Di Ciurcio Filho | if (bdrv_can_snapshot(bs1)) {
|
1951 | 2d22b18f | aliguori | /* Write VM state size only to the image that contains the state */
|
1952 | 2d22b18f | aliguori | sn->vm_state_size = (bs == bs1 ? vm_state_size : 0);
|
1953 | a672b469 | aliguori | ret = bdrv_snapshot_create(bs1, sn); |
1954 | a672b469 | aliguori | if (ret < 0) { |
1955 | 376253ec | aliguori | monitor_printf(mon, "Error while creating snapshot on '%s'\n",
|
1956 | 376253ec | aliguori | bdrv_get_device_name(bs1)); |
1957 | a672b469 | aliguori | } |
1958 | a672b469 | aliguori | } |
1959 | a672b469 | aliguori | } |
1960 | a672b469 | aliguori | |
1961 | a672b469 | aliguori | the_end:
|
1962 | a672b469 | aliguori | if (saved_vm_running)
|
1963 | a672b469 | aliguori | vm_start(); |
1964 | a672b469 | aliguori | } |
1965 | a672b469 | aliguori | |
1966 | 03cd4655 | Markus Armbruster | int load_vmstate(const char *name) |
1967 | a672b469 | aliguori | { |
1968 | f0aa7a8b | Miguel Di Ciurcio Filho | BlockDriverState *bs, *bs_vm_state; |
1969 | 2d22b18f | aliguori | QEMUSnapshotInfo sn; |
1970 | a672b469 | aliguori | QEMUFile *f; |
1971 | 751c6a17 | Gerd Hoffmann | int ret;
|
1972 | a672b469 | aliguori | |
1973 | f0aa7a8b | Miguel Di Ciurcio Filho | bs_vm_state = bdrv_snapshots(); |
1974 | f0aa7a8b | Miguel Di Ciurcio Filho | if (!bs_vm_state) {
|
1975 | f0aa7a8b | Miguel Di Ciurcio Filho | error_report("No block device supports snapshots");
|
1976 | f0aa7a8b | Miguel Di Ciurcio Filho | return -ENOTSUP;
|
1977 | f0aa7a8b | Miguel Di Ciurcio Filho | } |
1978 | f0aa7a8b | Miguel Di Ciurcio Filho | |
1979 | f0aa7a8b | Miguel Di Ciurcio Filho | /* Don't even try to load empty VM states */
|
1980 | f0aa7a8b | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_find(bs_vm_state, &sn, name); |
1981 | f0aa7a8b | Miguel Di Ciurcio Filho | if (ret < 0) { |
1982 | f0aa7a8b | Miguel Di Ciurcio Filho | return ret;
|
1983 | f0aa7a8b | Miguel Di Ciurcio Filho | } else if (sn.vm_state_size == 0) { |
1984 | f0aa7a8b | Miguel Di Ciurcio Filho | return -EINVAL;
|
1985 | f0aa7a8b | Miguel Di Ciurcio Filho | } |
1986 | f0aa7a8b | Miguel Di Ciurcio Filho | |
1987 | f0aa7a8b | Miguel Di Ciurcio Filho | /* Verify if there is any device that doesn't support snapshots and is
|
1988 | f0aa7a8b | Miguel Di Ciurcio Filho | writable and check if the requested snapshot is available too. */
|
1989 | dbc13590 | Markus Armbruster | bs = NULL;
|
1990 | dbc13590 | Markus Armbruster | while ((bs = bdrv_next(bs))) {
|
1991 | feeee5ac | Miguel Di Ciurcio Filho | |
1992 | feeee5ac | Miguel Di Ciurcio Filho | if (bdrv_is_removable(bs) || bdrv_is_read_only(bs)) {
|
1993 | feeee5ac | Miguel Di Ciurcio Filho | continue;
|
1994 | feeee5ac | Miguel Di Ciurcio Filho | } |
1995 | feeee5ac | Miguel Di Ciurcio Filho | |
1996 | feeee5ac | Miguel Di Ciurcio Filho | if (!bdrv_can_snapshot(bs)) {
|
1997 | feeee5ac | Miguel Di Ciurcio Filho | error_report("Device '%s' is writable but does not support snapshots.",
|
1998 | feeee5ac | Miguel Di Ciurcio Filho | bdrv_get_device_name(bs)); |
1999 | feeee5ac | Miguel Di Ciurcio Filho | return -ENOTSUP;
|
2000 | feeee5ac | Miguel Di Ciurcio Filho | } |
2001 | feeee5ac | Miguel Di Ciurcio Filho | |
2002 | f0aa7a8b | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_find(bs, &sn, name); |
2003 | f0aa7a8b | Miguel Di Ciurcio Filho | if (ret < 0) { |
2004 | f0aa7a8b | Miguel Di Ciurcio Filho | error_report("Device '%s' does not have the requested snapshot '%s'",
|
2005 | f0aa7a8b | Miguel Di Ciurcio Filho | bdrv_get_device_name(bs), name); |
2006 | f0aa7a8b | Miguel Di Ciurcio Filho | return ret;
|
2007 | f0aa7a8b | Miguel Di Ciurcio Filho | } |
2008 | a672b469 | aliguori | } |
2009 | a672b469 | aliguori | |
2010 | a672b469 | aliguori | /* Flush all IO requests so they don't interfere with the new state. */
|
2011 | a672b469 | aliguori | qemu_aio_flush(); |
2012 | a672b469 | aliguori | |
2013 | f0aa7a8b | Miguel Di Ciurcio Filho | bs = NULL;
|
2014 | f0aa7a8b | Miguel Di Ciurcio Filho | while ((bs = bdrv_next(bs))) {
|
2015 | f0aa7a8b | Miguel Di Ciurcio Filho | if (bdrv_can_snapshot(bs)) {
|
2016 | f0aa7a8b | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_goto(bs, name); |
2017 | a672b469 | aliguori | if (ret < 0) { |
2018 | f0aa7a8b | Miguel Di Ciurcio Filho | error_report("Error %d while activating snapshot '%s' on '%s'",
|
2019 | f0aa7a8b | Miguel Di Ciurcio Filho | ret, name, bdrv_get_device_name(bs)); |
2020 | f0aa7a8b | Miguel Di Ciurcio Filho | return ret;
|
2021 | a672b469 | aliguori | } |
2022 | a672b469 | aliguori | } |
2023 | a672b469 | aliguori | } |
2024 | a672b469 | aliguori | |
2025 | a672b469 | aliguori | /* restore the VM state */
|
2026 | f0aa7a8b | Miguel Di Ciurcio Filho | f = qemu_fopen_bdrv(bs_vm_state, 0);
|
2027 | a672b469 | aliguori | if (!f) {
|
2028 | 1ecda02b | Markus Armbruster | error_report("Could not open VM state file");
|
2029 | 05f2401e | Juan Quintela | return -EINVAL;
|
2030 | a672b469 | aliguori | } |
2031 | f0aa7a8b | Miguel Di Ciurcio Filho | |
2032 | a672b469 | aliguori | ret = qemu_loadvm_state(f); |
2033 | f0aa7a8b | Miguel Di Ciurcio Filho | |
2034 | a672b469 | aliguori | qemu_fclose(f); |
2035 | a672b469 | aliguori | if (ret < 0) { |
2036 | 1ecda02b | Markus Armbruster | error_report("Error %d while loading VM state", ret);
|
2037 | 05f2401e | Juan Quintela | return ret;
|
2038 | a672b469 | aliguori | } |
2039 | f0aa7a8b | Miguel Di Ciurcio Filho | |
2040 | 05f2401e | Juan Quintela | return 0; |
2041 | 7b630349 | Juan Quintela | } |
2042 | 7b630349 | Juan Quintela | |
2043 | d54908a5 | Luiz Capitulino | void do_delvm(Monitor *mon, const QDict *qdict) |
2044 | a672b469 | aliguori | { |
2045 | a672b469 | aliguori | BlockDriverState *bs, *bs1; |
2046 | 751c6a17 | Gerd Hoffmann | int ret;
|
2047 | d54908a5 | Luiz Capitulino | const char *name = qdict_get_str(qdict, "name"); |
2048 | a672b469 | aliguori | |
2049 | f9092b10 | Markus Armbruster | bs = bdrv_snapshots(); |
2050 | a672b469 | aliguori | if (!bs) {
|
2051 | 376253ec | aliguori | monitor_printf(mon, "No block device supports snapshots\n");
|
2052 | a672b469 | aliguori | return;
|
2053 | a672b469 | aliguori | } |
2054 | a672b469 | aliguori | |
2055 | dbc13590 | Markus Armbruster | bs1 = NULL;
|
2056 | dbc13590 | Markus Armbruster | while ((bs1 = bdrv_next(bs1))) {
|
2057 | feeee5ac | Miguel Di Ciurcio Filho | if (bdrv_can_snapshot(bs1)) {
|
2058 | a672b469 | aliguori | ret = bdrv_snapshot_delete(bs1, name); |
2059 | a672b469 | aliguori | if (ret < 0) { |
2060 | a672b469 | aliguori | if (ret == -ENOTSUP)
|
2061 | 376253ec | aliguori | monitor_printf(mon, |
2062 | 376253ec | aliguori | "Snapshots not supported on device '%s'\n",
|
2063 | 376253ec | aliguori | bdrv_get_device_name(bs1)); |
2064 | a672b469 | aliguori | else
|
2065 | 376253ec | aliguori | monitor_printf(mon, "Error %d while deleting snapshot on "
|
2066 | 376253ec | aliguori | "'%s'\n", ret, bdrv_get_device_name(bs1));
|
2067 | a672b469 | aliguori | } |
2068 | a672b469 | aliguori | } |
2069 | a672b469 | aliguori | } |
2070 | a672b469 | aliguori | } |
2071 | a672b469 | aliguori | |
2072 | 376253ec | aliguori | void do_info_snapshots(Monitor *mon)
|
2073 | a672b469 | aliguori | { |
2074 | a672b469 | aliguori | BlockDriverState *bs, *bs1; |
2075 | f9209915 | Miguel Di Ciurcio Filho | QEMUSnapshotInfo *sn_tab, *sn, s, *sn_info = &s; |
2076 | f9209915 | Miguel Di Ciurcio Filho | int nb_sns, i, ret, available;
|
2077 | f9209915 | Miguel Di Ciurcio Filho | int total;
|
2078 | f9209915 | Miguel Di Ciurcio Filho | int *available_snapshots;
|
2079 | a672b469 | aliguori | char buf[256]; |
2080 | a672b469 | aliguori | |
2081 | f9092b10 | Markus Armbruster | bs = bdrv_snapshots(); |
2082 | a672b469 | aliguori | if (!bs) {
|
2083 | 376253ec | aliguori | monitor_printf(mon, "No available block device supports snapshots\n");
|
2084 | a672b469 | aliguori | return;
|
2085 | a672b469 | aliguori | } |
2086 | a672b469 | aliguori | |
2087 | a672b469 | aliguori | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
2088 | a672b469 | aliguori | if (nb_sns < 0) { |
2089 | 376253ec | aliguori | monitor_printf(mon, "bdrv_snapshot_list: error %d\n", nb_sns);
|
2090 | a672b469 | aliguori | return;
|
2091 | a672b469 | aliguori | } |
2092 | f9209915 | Miguel Di Ciurcio Filho | |
2093 | f9209915 | Miguel Di Ciurcio Filho | if (nb_sns == 0) { |
2094 | f9209915 | Miguel Di Ciurcio Filho | monitor_printf(mon, "There is no snapshot available.\n");
|
2095 | f9209915 | Miguel Di Ciurcio Filho | return;
|
2096 | f9209915 | Miguel Di Ciurcio Filho | } |
2097 | f9209915 | Miguel Di Ciurcio Filho | |
2098 | f9209915 | Miguel Di Ciurcio Filho | available_snapshots = qemu_mallocz(sizeof(int) * nb_sns); |
2099 | f9209915 | Miguel Di Ciurcio Filho | total = 0;
|
2100 | f9209915 | Miguel Di Ciurcio Filho | for (i = 0; i < nb_sns; i++) { |
2101 | a672b469 | aliguori | sn = &sn_tab[i]; |
2102 | f9209915 | Miguel Di Ciurcio Filho | available = 1;
|
2103 | f9209915 | Miguel Di Ciurcio Filho | bs1 = NULL;
|
2104 | f9209915 | Miguel Di Ciurcio Filho | |
2105 | f9209915 | Miguel Di Ciurcio Filho | while ((bs1 = bdrv_next(bs1))) {
|
2106 | f9209915 | Miguel Di Ciurcio Filho | if (bdrv_can_snapshot(bs1) && bs1 != bs) {
|
2107 | f9209915 | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_find(bs1, sn_info, sn->id_str); |
2108 | f9209915 | Miguel Di Ciurcio Filho | if (ret < 0) { |
2109 | f9209915 | Miguel Di Ciurcio Filho | available = 0;
|
2110 | f9209915 | Miguel Di Ciurcio Filho | break;
|
2111 | f9209915 | Miguel Di Ciurcio Filho | } |
2112 | f9209915 | Miguel Di Ciurcio Filho | } |
2113 | f9209915 | Miguel Di Ciurcio Filho | } |
2114 | f9209915 | Miguel Di Ciurcio Filho | |
2115 | f9209915 | Miguel Di Ciurcio Filho | if (available) {
|
2116 | f9209915 | Miguel Di Ciurcio Filho | available_snapshots[total] = i; |
2117 | f9209915 | Miguel Di Ciurcio Filho | total++; |
2118 | f9209915 | Miguel Di Ciurcio Filho | } |
2119 | a672b469 | aliguori | } |
2120 | f9209915 | Miguel Di Ciurcio Filho | |
2121 | f9209915 | Miguel Di Ciurcio Filho | if (total > 0) { |
2122 | f9209915 | Miguel Di Ciurcio Filho | monitor_printf(mon, "%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
2123 | f9209915 | Miguel Di Ciurcio Filho | for (i = 0; i < total; i++) { |
2124 | f9209915 | Miguel Di Ciurcio Filho | sn = &sn_tab[available_snapshots[i]]; |
2125 | f9209915 | Miguel Di Ciurcio Filho | monitor_printf(mon, "%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
2126 | f9209915 | Miguel Di Ciurcio Filho | } |
2127 | f9209915 | Miguel Di Ciurcio Filho | } else {
|
2128 | f9209915 | Miguel Di Ciurcio Filho | monitor_printf(mon, "There is no suitable snapshot available\n");
|
2129 | f9209915 | Miguel Di Ciurcio Filho | } |
2130 | f9209915 | Miguel Di Ciurcio Filho | |
2131 | a672b469 | aliguori | qemu_free(sn_tab); |
2132 | f9209915 | Miguel Di Ciurcio Filho | qemu_free(available_snapshots); |
2133 | f9209915 | Miguel Di Ciurcio Filho | |
2134 | a672b469 | aliguori | } |