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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 | |
25 | d40cdb10 | blueswir1 | #include "config-host.h" |
26 | 511d2b14 | blueswir1 | #include "qemu-common.h" |
27 | 511d2b14 | blueswir1 | #include "hw/hw.h" |
28 | 7685ee6a | Alex Williamson | #include "hw/qdev.h" |
29 | 1422e32d | Paolo Bonzini | #include "net/net.h" |
30 | 83c9089e | Paolo Bonzini | #include "monitor/monitor.h" |
31 | 9c17d615 | Paolo Bonzini | #include "sysemu/sysemu.h" |
32 | 1de7afc9 | Paolo Bonzini | #include "qemu/timer.h" |
33 | 511d2b14 | blueswir1 | #include "audio/audio.h" |
34 | caf71f86 | Paolo Bonzini | #include "migration/migration.h" |
35 | 1de7afc9 | Paolo Bonzini | #include "qemu/sockets.h" |
36 | 1de7afc9 | Paolo Bonzini | #include "qemu/queue.h" |
37 | 9c17d615 | Paolo Bonzini | #include "sysemu/cpus.h" |
38 | 022c62cb | Paolo Bonzini | #include "exec/memory.h" |
39 | a7ae8355 | Stefano Stabellini | #include "qmp-commands.h" |
40 | 517a13c9 | Juan Quintela | #include "trace.h" |
41 | 1de7afc9 | Paolo Bonzini | #include "qemu/bitops.h" |
42 | 28085f7b | Orit Wasserman | #include "qemu/iov.h" |
43 | de08c606 | Wenchao Xia | #include "block/snapshot.h" |
44 | f364ec65 | Wenchao Xia | #include "block/qapi.h" |
45 | 511d2b14 | blueswir1 | |
46 | a672b469 | aliguori | #define SELF_ANNOUNCE_ROUNDS 5 |
47 | a672b469 | aliguori | |
48 | 18995b98 | Nolan | #ifndef ETH_P_RARP
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49 | f8778a77 | Stefan Berger | #define ETH_P_RARP 0x8035 |
50 | 18995b98 | Nolan | #endif
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51 | 18995b98 | Nolan | #define ARP_HTYPE_ETH 0x0001 |
52 | 18995b98 | Nolan | #define ARP_PTYPE_IP 0x0800 |
53 | 18995b98 | Nolan | #define ARP_OP_REQUEST_REV 0x3 |
54 | 18995b98 | Nolan | |
55 | 18995b98 | Nolan | static int announce_self_create(uint8_t *buf, |
56 | a672b469 | aliguori | uint8_t *mac_addr) |
57 | a672b469 | aliguori | { |
58 | 18995b98 | Nolan | /* Ethernet header. */
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59 | 18995b98 | Nolan | memset(buf, 0xff, 6); /* destination MAC addr */ |
60 | 18995b98 | Nolan | memcpy(buf + 6, mac_addr, 6); /* source MAC addr */ |
61 | 18995b98 | Nolan | *(uint16_t *)(buf + 12) = htons(ETH_P_RARP); /* ethertype */ |
62 | 18995b98 | Nolan | |
63 | 18995b98 | Nolan | /* RARP header. */
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64 | 18995b98 | Nolan | *(uint16_t *)(buf + 14) = htons(ARP_HTYPE_ETH); /* hardware addr space */ |
65 | 18995b98 | Nolan | *(uint16_t *)(buf + 16) = htons(ARP_PTYPE_IP); /* protocol addr space */ |
66 | 18995b98 | Nolan | *(buf + 18) = 6; /* hardware addr length (ethernet) */ |
67 | 18995b98 | Nolan | *(buf + 19) = 4; /* protocol addr length (IPv4) */ |
68 | 18995b98 | Nolan | *(uint16_t *)(buf + 20) = htons(ARP_OP_REQUEST_REV); /* opcode */ |
69 | 18995b98 | Nolan | memcpy(buf + 22, mac_addr, 6); /* source hw addr */ |
70 | 18995b98 | Nolan | memset(buf + 28, 0x00, 4); /* source protocol addr */ |
71 | 18995b98 | Nolan | memcpy(buf + 32, mac_addr, 6); /* target hw addr */ |
72 | 18995b98 | Nolan | memset(buf + 38, 0x00, 4); /* target protocol addr */ |
73 | 18995b98 | Nolan | |
74 | 18995b98 | Nolan | /* Padding to get up to 60 bytes (ethernet min packet size, minus FCS). */
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75 | 18995b98 | Nolan | memset(buf + 42, 0x00, 18); |
76 | 18995b98 | Nolan | |
77 | 18995b98 | Nolan | return 60; /* len (FCS will be added by hardware) */ |
78 | a672b469 | aliguori | } |
79 | a672b469 | aliguori | |
80 | f401ca22 | Mark McLoughlin | static void qemu_announce_self_iter(NICState *nic, void *opaque) |
81 | a672b469 | aliguori | { |
82 | 18995b98 | Nolan | uint8_t buf[60];
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83 | f401ca22 | Mark McLoughlin | int len;
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84 | f401ca22 | Mark McLoughlin | |
85 | f401ca22 | Mark McLoughlin | len = announce_self_create(buf, nic->conf->macaddr.a); |
86 | f401ca22 | Mark McLoughlin | |
87 | b356f76d | Jason Wang | qemu_send_packet_raw(qemu_get_queue(nic), buf, len); |
88 | f401ca22 | Mark McLoughlin | } |
89 | f401ca22 | Mark McLoughlin | |
90 | f401ca22 | Mark McLoughlin | |
91 | f401ca22 | Mark McLoughlin | static void qemu_announce_self_once(void *opaque) |
92 | f401ca22 | Mark McLoughlin | { |
93 | ed8b330b | Gleb Natapov | static int count = SELF_ANNOUNCE_ROUNDS; |
94 | ed8b330b | Gleb Natapov | QEMUTimer *timer = *(QEMUTimer **)opaque; |
95 | a672b469 | aliguori | |
96 | f401ca22 | Mark McLoughlin | qemu_foreach_nic(qemu_announce_self_iter, NULL);
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97 | f401ca22 | Mark McLoughlin | |
98 | 18995b98 | Nolan | if (--count) {
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99 | 18995b98 | Nolan | /* delay 50ms, 150ms, 250ms, ... */
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100 | bc72ad67 | Alex Bligh | timer_mod(timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + |
101 | 18995b98 | Nolan | 50 + (SELF_ANNOUNCE_ROUNDS - count - 1) * 100); |
102 | ed8b330b | Gleb Natapov | } else {
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103 | bc72ad67 | Alex Bligh | timer_del(timer); |
104 | bc72ad67 | Alex Bligh | timer_free(timer); |
105 | ed8b330b | Gleb Natapov | } |
106 | ed8b330b | Gleb Natapov | } |
107 | ed8b330b | Gleb Natapov | |
108 | ed8b330b | Gleb Natapov | void qemu_announce_self(void) |
109 | ed8b330b | Gleb Natapov | { |
110 | ed8b330b | Gleb Natapov | static QEMUTimer *timer;
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111 | bc72ad67 | Alex Bligh | timer = timer_new_ms(QEMU_CLOCK_REALTIME, qemu_announce_self_once, &timer); |
112 | ed8b330b | Gleb Natapov | qemu_announce_self_once(&timer); |
113 | a672b469 | aliguori | } |
114 | a672b469 | aliguori | |
115 | a672b469 | aliguori | /***********************************************************/
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116 | a672b469 | aliguori | /* savevm/loadvm support */
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117 | a672b469 | aliguori | |
118 | a672b469 | aliguori | #define IO_BUF_SIZE 32768 |
119 | b3ea2bdb | Orit Wasserman | #define MAX_IOV_SIZE MIN(IOV_MAX, 64) |
120 | a672b469 | aliguori | |
121 | a672b469 | aliguori | struct QEMUFile {
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122 | 9229bf3c | Paolo Bonzini | const QEMUFileOps *ops;
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123 | a672b469 | aliguori | void *opaque;
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124 | a672b469 | aliguori | |
125 | 1964a397 | Paolo Bonzini | int64_t bytes_xfer; |
126 | 1964a397 | Paolo Bonzini | int64_t xfer_limit; |
127 | 1964a397 | Paolo Bonzini | |
128 | 3f2d38fa | Paolo Bonzini | int64_t pos; /* start of buffer when writing, end of buffer
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129 | 3f2d38fa | Paolo Bonzini | when reading */
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130 | a672b469 | aliguori | int buf_index;
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131 | a672b469 | aliguori | int buf_size; /* 0 when writing */ |
132 | a672b469 | aliguori | uint8_t buf[IO_BUF_SIZE]; |
133 | a672b469 | aliguori | |
134 | b3ea2bdb | Orit Wasserman | struct iovec iov[MAX_IOV_SIZE];
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135 | b3ea2bdb | Orit Wasserman | unsigned int iovcnt; |
136 | b3ea2bdb | Orit Wasserman | |
137 | 3961b4dd | Juan Quintela | int last_error;
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138 | a672b469 | aliguori | }; |
139 | a672b469 | aliguori | |
140 | 7f79dd28 | Paolo Bonzini | typedef struct QEMUFileStdio |
141 | a672b469 | aliguori | { |
142 | 7f79dd28 | Paolo Bonzini | FILE *stdio_file; |
143 | a672b469 | aliguori | QEMUFile *file; |
144 | 7f79dd28 | Paolo Bonzini | } QEMUFileStdio; |
145 | a672b469 | aliguori | |
146 | a672b469 | aliguori | typedef struct QEMUFileSocket |
147 | a672b469 | aliguori | { |
148 | a672b469 | aliguori | int fd;
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149 | a672b469 | aliguori | QEMUFile *file; |
150 | a672b469 | aliguori | } QEMUFileSocket; |
151 | a672b469 | aliguori | |
152 | 05fcc848 | Kevin Wolf | static ssize_t socket_writev_buffer(void *opaque, struct iovec *iov, int iovcnt, |
153 | 05fcc848 | Kevin Wolf | int64_t pos) |
154 | 28085f7b | Orit Wasserman | { |
155 | 28085f7b | Orit Wasserman | QEMUFileSocket *s = opaque; |
156 | 28085f7b | Orit Wasserman | ssize_t len; |
157 | 28085f7b | Orit Wasserman | ssize_t size = iov_size(iov, iovcnt); |
158 | 28085f7b | Orit Wasserman | |
159 | 28085f7b | Orit Wasserman | len = iov_send(s->fd, iov, iovcnt, 0, size);
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160 | 28085f7b | Orit Wasserman | if (len < size) {
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161 | 28085f7b | Orit Wasserman | len = -socket_error(); |
162 | 28085f7b | Orit Wasserman | } |
163 | 28085f7b | Orit Wasserman | return len;
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164 | 28085f7b | Orit Wasserman | } |
165 | 28085f7b | Orit Wasserman | |
166 | 70eb6330 | Paolo Bonzini | static int socket_get_fd(void *opaque) |
167 | 70eb6330 | Paolo Bonzini | { |
168 | 70eb6330 | Paolo Bonzini | QEMUFileSocket *s = opaque; |
169 | 70eb6330 | Paolo Bonzini | |
170 | 70eb6330 | Paolo Bonzini | return s->fd;
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171 | 70eb6330 | Paolo Bonzini | } |
172 | 70eb6330 | Paolo Bonzini | |
173 | a672b469 | aliguori | static int socket_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size) |
174 | a672b469 | aliguori | { |
175 | a672b469 | aliguori | QEMUFileSocket *s = opaque; |
176 | a672b469 | aliguori | ssize_t len; |
177 | a672b469 | aliguori | |
178 | 595ab641 | Paolo Bonzini | for (;;) {
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179 | 00aa0040 | Blue Swirl | len = qemu_recv(s->fd, buf, size, 0);
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180 | 595ab641 | Paolo Bonzini | if (len != -1) { |
181 | 595ab641 | Paolo Bonzini | break;
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182 | 595ab641 | Paolo Bonzini | } |
183 | 595ab641 | Paolo Bonzini | if (socket_error() == EAGAIN) {
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184 | d7cd3694 | Stefan Hajnoczi | yield_until_fd_readable(s->fd); |
185 | 595ab641 | Paolo Bonzini | } else if (socket_error() != EINTR) { |
186 | 595ab641 | Paolo Bonzini | break;
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187 | 595ab641 | Paolo Bonzini | } |
188 | 595ab641 | Paolo Bonzini | } |
189 | a672b469 | aliguori | |
190 | 595ab641 | Paolo Bonzini | if (len == -1) { |
191 | a672b469 | aliguori | len = -socket_error(); |
192 | 595ab641 | Paolo Bonzini | } |
193 | a672b469 | aliguori | return len;
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194 | a672b469 | aliguori | } |
195 | a672b469 | aliguori | |
196 | a672b469 | aliguori | static int socket_close(void *opaque) |
197 | a672b469 | aliguori | { |
198 | a672b469 | aliguori | QEMUFileSocket *s = opaque; |
199 | ab52a824 | Paolo Bonzini | closesocket(s->fd); |
200 | 7267c094 | Anthony Liguori | g_free(s); |
201 | a672b469 | aliguori | return 0; |
202 | a672b469 | aliguori | } |
203 | a672b469 | aliguori | |
204 | 70eb6330 | Paolo Bonzini | static int stdio_get_fd(void *opaque) |
205 | 70eb6330 | Paolo Bonzini | { |
206 | 70eb6330 | Paolo Bonzini | QEMUFileStdio *s = opaque; |
207 | 70eb6330 | Paolo Bonzini | |
208 | 70eb6330 | Paolo Bonzini | return fileno(s->stdio_file);
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209 | 70eb6330 | Paolo Bonzini | } |
210 | 70eb6330 | Paolo Bonzini | |
211 | 7f79dd28 | Paolo Bonzini | static int stdio_put_buffer(void *opaque, const uint8_t *buf, int64_t pos, int size) |
212 | a672b469 | aliguori | { |
213 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s = opaque; |
214 | 7f79dd28 | Paolo Bonzini | return fwrite(buf, 1, size, s->stdio_file); |
215 | a672b469 | aliguori | } |
216 | a672b469 | aliguori | |
217 | 7f79dd28 | Paolo Bonzini | static int stdio_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size) |
218 | a672b469 | aliguori | { |
219 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s = opaque; |
220 | 7f79dd28 | Paolo Bonzini | FILE *fp = s->stdio_file; |
221 | 8a67ec4d | Uri Lublin | int bytes;
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222 | 8a67ec4d | Uri Lublin | |
223 | 595ab641 | Paolo Bonzini | for (;;) {
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224 | 8a67ec4d | Uri Lublin | clearerr(fp); |
225 | 8a67ec4d | Uri Lublin | bytes = fread(buf, 1, size, fp);
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226 | 595ab641 | Paolo Bonzini | if (bytes != 0 || !ferror(fp)) { |
227 | 595ab641 | Paolo Bonzini | break;
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228 | 595ab641 | Paolo Bonzini | } |
229 | 595ab641 | Paolo Bonzini | if (errno == EAGAIN) {
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230 | d7cd3694 | Stefan Hajnoczi | yield_until_fd_readable(fileno(fp)); |
231 | 595ab641 | Paolo Bonzini | } else if (errno != EINTR) { |
232 | 595ab641 | Paolo Bonzini | break;
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233 | 595ab641 | Paolo Bonzini | } |
234 | 595ab641 | Paolo Bonzini | } |
235 | 8a67ec4d | Uri Lublin | return bytes;
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236 | a672b469 | aliguori | } |
237 | a672b469 | aliguori | |
238 | 7f79dd28 | Paolo Bonzini | static int stdio_pclose(void *opaque) |
239 | 7f79dd28 | Paolo Bonzini | { |
240 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s = opaque; |
241 | 41ef56e6 | Anthony Liguori | int ret;
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242 | 41ef56e6 | Anthony Liguori | ret = pclose(s->stdio_file); |
243 | 26f1af0a | Eduardo Habkost | if (ret == -1) { |
244 | 26f1af0a | Eduardo Habkost | ret = -errno; |
245 | 13c7b2da | Paolo Bonzini | } else if (!WIFEXITED(ret) || WEXITSTATUS(ret) != 0) { |
246 | 13c7b2da | Paolo Bonzini | /* close succeeded, but non-zero exit code: */
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247 | 13c7b2da | Paolo Bonzini | ret = -EIO; /* fake errno value */
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248 | 26f1af0a | Eduardo Habkost | } |
249 | 7267c094 | Anthony Liguori | g_free(s); |
250 | 41ef56e6 | Anthony Liguori | return ret;
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251 | 7f79dd28 | Paolo Bonzini | } |
252 | 7f79dd28 | Paolo Bonzini | |
253 | 7f79dd28 | Paolo Bonzini | static int stdio_fclose(void *opaque) |
254 | a672b469 | aliguori | { |
255 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s = opaque; |
256 | 0e286705 | Eduardo Habkost | int ret = 0; |
257 | ce39ee31 | Paolo Bonzini | |
258 | cb88aa88 | Orit Wasserman | if (s->file->ops->put_buffer || s->file->ops->writev_buffer) {
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259 | ce39ee31 | Paolo Bonzini | int fd = fileno(s->stdio_file);
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260 | ce39ee31 | Paolo Bonzini | struct stat st;
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261 | ce39ee31 | Paolo Bonzini | |
262 | ce39ee31 | Paolo Bonzini | ret = fstat(fd, &st); |
263 | ce39ee31 | Paolo Bonzini | if (ret == 0 && S_ISREG(st.st_mode)) { |
264 | ce39ee31 | Paolo Bonzini | /*
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265 | ce39ee31 | Paolo Bonzini | * If the file handle is a regular file make sure the
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266 | ce39ee31 | Paolo Bonzini | * data is flushed to disk before signaling success.
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267 | ce39ee31 | Paolo Bonzini | */
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268 | ce39ee31 | Paolo Bonzini | ret = fsync(fd); |
269 | ce39ee31 | Paolo Bonzini | if (ret != 0) { |
270 | ce39ee31 | Paolo Bonzini | ret = -errno; |
271 | ce39ee31 | Paolo Bonzini | return ret;
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272 | ce39ee31 | Paolo Bonzini | } |
273 | ce39ee31 | Paolo Bonzini | } |
274 | ce39ee31 | Paolo Bonzini | } |
275 | 0e286705 | Eduardo Habkost | if (fclose(s->stdio_file) == EOF) { |
276 | 0e286705 | Eduardo Habkost | ret = -errno; |
277 | 0e286705 | Eduardo Habkost | } |
278 | 7267c094 | Anthony Liguori | g_free(s); |
279 | 0e286705 | Eduardo Habkost | return ret;
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280 | a672b469 | aliguori | } |
281 | a672b469 | aliguori | |
282 | 9229bf3c | Paolo Bonzini | static const QEMUFileOps stdio_pipe_read_ops = { |
283 | 70eb6330 | Paolo Bonzini | .get_fd = stdio_get_fd, |
284 | 9229bf3c | Paolo Bonzini | .get_buffer = stdio_get_buffer, |
285 | 9229bf3c | Paolo Bonzini | .close = stdio_pclose |
286 | 9229bf3c | Paolo Bonzini | }; |
287 | 9229bf3c | Paolo Bonzini | |
288 | 9229bf3c | Paolo Bonzini | static const QEMUFileOps stdio_pipe_write_ops = { |
289 | 70eb6330 | Paolo Bonzini | .get_fd = stdio_get_fd, |
290 | 9229bf3c | Paolo Bonzini | .put_buffer = stdio_put_buffer, |
291 | 9229bf3c | Paolo Bonzini | .close = stdio_pclose |
292 | 9229bf3c | Paolo Bonzini | }; |
293 | 9229bf3c | Paolo Bonzini | |
294 | 817b9ed5 | Paolo Bonzini | QEMUFile *qemu_popen_cmd(const char *command, const char *mode) |
295 | a672b469 | aliguori | { |
296 | 817b9ed5 | Paolo Bonzini | FILE *stdio_file; |
297 | 7f79dd28 | Paolo Bonzini | QEMUFileStdio *s; |
298 | a672b469 | aliguori | |
299 | a4cc73d6 | Paolo Bonzini | if (mode == NULL || (mode[0] != 'r' && mode[0] != 'w') || mode[1] != 0) { |
300 | a4cc73d6 | Paolo Bonzini | fprintf(stderr, "qemu_popen: Argument validity check failed\n");
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301 | 817b9ed5 | Paolo Bonzini | return NULL; |
302 | 817b9ed5 | Paolo Bonzini | } |
303 | 817b9ed5 | Paolo Bonzini | |
304 | a4cc73d6 | Paolo Bonzini | stdio_file = popen(command, mode); |
305 | a4cc73d6 | Paolo Bonzini | if (stdio_file == NULL) { |
306 | a672b469 | aliguori | return NULL; |
307 | a672b469 | aliguori | } |
308 | a672b469 | aliguori | |
309 | 7267c094 | Anthony Liguori | s = g_malloc0(sizeof(QEMUFileStdio));
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310 | a672b469 | aliguori | |
311 | 7f79dd28 | Paolo Bonzini | s->stdio_file = stdio_file; |
312 | a672b469 | aliguori | |
313 | a672b469 | aliguori | if(mode[0] == 'r') { |
314 | 9229bf3c | Paolo Bonzini | s->file = qemu_fopen_ops(s, &stdio_pipe_read_ops); |
315 | a672b469 | aliguori | } else {
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316 | 9229bf3c | Paolo Bonzini | s->file = qemu_fopen_ops(s, &stdio_pipe_write_ops); |
317 | a672b469 | aliguori | } |
318 | a672b469 | aliguori | return s->file;
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319 | a672b469 | aliguori | } |
320 | a672b469 | aliguori | |
321 | 9229bf3c | Paolo Bonzini | static const QEMUFileOps stdio_file_read_ops = { |
322 | 70eb6330 | Paolo Bonzini | .get_fd = stdio_get_fd, |
323 | 9229bf3c | Paolo Bonzini | .get_buffer = stdio_get_buffer, |
324 | 9229bf3c | Paolo Bonzini | .close = stdio_fclose |
325 | 9229bf3c | Paolo Bonzini | }; |
326 | 9229bf3c | Paolo Bonzini | |
327 | 9229bf3c | Paolo Bonzini | static const QEMUFileOps stdio_file_write_ops = { |
328 | 70eb6330 | Paolo Bonzini | .get_fd = stdio_get_fd, |
329 | 9229bf3c | Paolo Bonzini | .put_buffer = stdio_put_buffer, |
330 | 9229bf3c | Paolo Bonzini | .close = stdio_fclose |
331 | 9229bf3c | Paolo Bonzini | }; |
332 | 9229bf3c | Paolo Bonzini | |
333 | e9d8fbf5 | Paolo Bonzini | static ssize_t unix_writev_buffer(void *opaque, struct iovec *iov, int iovcnt, |
334 | e9d8fbf5 | Paolo Bonzini | int64_t pos) |
335 | e9d8fbf5 | Paolo Bonzini | { |
336 | e9d8fbf5 | Paolo Bonzini | QEMUFileSocket *s = opaque; |
337 | e9d8fbf5 | Paolo Bonzini | ssize_t len, offset; |
338 | e9d8fbf5 | Paolo Bonzini | ssize_t size = iov_size(iov, iovcnt); |
339 | e9d8fbf5 | Paolo Bonzini | ssize_t total = 0;
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340 | e9d8fbf5 | Paolo Bonzini | |
341 | e9d8fbf5 | Paolo Bonzini | assert(iovcnt > 0);
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342 | e9d8fbf5 | Paolo Bonzini | offset = 0;
|
343 | e9d8fbf5 | Paolo Bonzini | while (size > 0) { |
344 | e9d8fbf5 | Paolo Bonzini | /* Find the next start position; skip all full-sized vector elements */
|
345 | e9d8fbf5 | Paolo Bonzini | while (offset >= iov[0].iov_len) { |
346 | e9d8fbf5 | Paolo Bonzini | offset -= iov[0].iov_len;
|
347 | e9d8fbf5 | Paolo Bonzini | iov++, iovcnt--; |
348 | e9d8fbf5 | Paolo Bonzini | } |
349 | e9d8fbf5 | Paolo Bonzini | |
350 | e9d8fbf5 | Paolo Bonzini | /* skip `offset' bytes from the (now) first element, undo it on exit */
|
351 | e9d8fbf5 | Paolo Bonzini | assert(iovcnt > 0);
|
352 | e9d8fbf5 | Paolo Bonzini | iov[0].iov_base += offset;
|
353 | e9d8fbf5 | Paolo Bonzini | iov[0].iov_len -= offset;
|
354 | e9d8fbf5 | Paolo Bonzini | |
355 | e9d8fbf5 | Paolo Bonzini | do {
|
356 | e9d8fbf5 | Paolo Bonzini | len = writev(s->fd, iov, iovcnt); |
357 | e9d8fbf5 | Paolo Bonzini | } while (len == -1 && errno == EINTR); |
358 | e9d8fbf5 | Paolo Bonzini | if (len == -1) { |
359 | e9d8fbf5 | Paolo Bonzini | return -errno;
|
360 | e9d8fbf5 | Paolo Bonzini | } |
361 | e9d8fbf5 | Paolo Bonzini | |
362 | e9d8fbf5 | Paolo Bonzini | /* Undo the changes above */
|
363 | e9d8fbf5 | Paolo Bonzini | iov[0].iov_base -= offset;
|
364 | e9d8fbf5 | Paolo Bonzini | iov[0].iov_len += offset;
|
365 | e9d8fbf5 | Paolo Bonzini | |
366 | e9d8fbf5 | Paolo Bonzini | /* Prepare for the next iteration */
|
367 | e9d8fbf5 | Paolo Bonzini | offset += len; |
368 | e9d8fbf5 | Paolo Bonzini | total += len; |
369 | e9d8fbf5 | Paolo Bonzini | size -= len; |
370 | e9d8fbf5 | Paolo Bonzini | } |
371 | e9d8fbf5 | Paolo Bonzini | |
372 | e9d8fbf5 | Paolo Bonzini | return total;
|
373 | e9d8fbf5 | Paolo Bonzini | } |
374 | e9d8fbf5 | Paolo Bonzini | |
375 | e9d8fbf5 | Paolo Bonzini | static int unix_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size) |
376 | e9d8fbf5 | Paolo Bonzini | { |
377 | e9d8fbf5 | Paolo Bonzini | QEMUFileSocket *s = opaque; |
378 | e9d8fbf5 | Paolo Bonzini | ssize_t len; |
379 | e9d8fbf5 | Paolo Bonzini | |
380 | e9d8fbf5 | Paolo Bonzini | for (;;) {
|
381 | e9d8fbf5 | Paolo Bonzini | len = read(s->fd, buf, size); |
382 | e9d8fbf5 | Paolo Bonzini | if (len != -1) { |
383 | e9d8fbf5 | Paolo Bonzini | break;
|
384 | e9d8fbf5 | Paolo Bonzini | } |
385 | e9d8fbf5 | Paolo Bonzini | if (errno == EAGAIN) {
|
386 | e9d8fbf5 | Paolo Bonzini | yield_until_fd_readable(s->fd); |
387 | e9d8fbf5 | Paolo Bonzini | } else if (errno != EINTR) { |
388 | e9d8fbf5 | Paolo Bonzini | break;
|
389 | e9d8fbf5 | Paolo Bonzini | } |
390 | e9d8fbf5 | Paolo Bonzini | } |
391 | e9d8fbf5 | Paolo Bonzini | |
392 | e9d8fbf5 | Paolo Bonzini | if (len == -1) { |
393 | e9d8fbf5 | Paolo Bonzini | len = -errno; |
394 | e9d8fbf5 | Paolo Bonzini | } |
395 | e9d8fbf5 | Paolo Bonzini | return len;
|
396 | e9d8fbf5 | Paolo Bonzini | } |
397 | e9d8fbf5 | Paolo Bonzini | |
398 | e9d8fbf5 | Paolo Bonzini | static int unix_close(void *opaque) |
399 | e9d8fbf5 | Paolo Bonzini | { |
400 | e9d8fbf5 | Paolo Bonzini | QEMUFileSocket *s = opaque; |
401 | e9d8fbf5 | Paolo Bonzini | close(s->fd); |
402 | e9d8fbf5 | Paolo Bonzini | g_free(s); |
403 | e9d8fbf5 | Paolo Bonzini | return 0; |
404 | e9d8fbf5 | Paolo Bonzini | } |
405 | e9d8fbf5 | Paolo Bonzini | |
406 | e9d8fbf5 | Paolo Bonzini | static const QEMUFileOps unix_read_ops = { |
407 | e9d8fbf5 | Paolo Bonzini | .get_fd = socket_get_fd, |
408 | e9d8fbf5 | Paolo Bonzini | .get_buffer = unix_get_buffer, |
409 | e9d8fbf5 | Paolo Bonzini | .close = unix_close |
410 | e9d8fbf5 | Paolo Bonzini | }; |
411 | e9d8fbf5 | Paolo Bonzini | |
412 | e9d8fbf5 | Paolo Bonzini | static const QEMUFileOps unix_write_ops = { |
413 | e9d8fbf5 | Paolo Bonzini | .get_fd = socket_get_fd, |
414 | e9d8fbf5 | Paolo Bonzini | .writev_buffer = unix_writev_buffer, |
415 | e9d8fbf5 | Paolo Bonzini | .close = unix_close |
416 | e9d8fbf5 | Paolo Bonzini | }; |
417 | e9d8fbf5 | Paolo Bonzini | |
418 | 5ac1fad3 | Paolo Bonzini | QEMUFile *qemu_fdopen(int fd, const char *mode) |
419 | 5ac1fad3 | Paolo Bonzini | { |
420 | e9d8fbf5 | Paolo Bonzini | QEMUFileSocket *s; |
421 | 5ac1fad3 | Paolo Bonzini | |
422 | 5ac1fad3 | Paolo Bonzini | if (mode == NULL || |
423 | 5ac1fad3 | Paolo Bonzini | (mode[0] != 'r' && mode[0] != 'w') || |
424 | 5ac1fad3 | Paolo Bonzini | mode[1] != 'b' || mode[2] != 0) { |
425 | 5ac1fad3 | Paolo Bonzini | fprintf(stderr, "qemu_fdopen: Argument validity check failed\n");
|
426 | 5ac1fad3 | Paolo Bonzini | return NULL; |
427 | 5ac1fad3 | Paolo Bonzini | } |
428 | 5ac1fad3 | Paolo Bonzini | |
429 | e9d8fbf5 | Paolo Bonzini | s = g_malloc0(sizeof(QEMUFileSocket));
|
430 | e9d8fbf5 | Paolo Bonzini | s->fd = fd; |
431 | 5ac1fad3 | Paolo Bonzini | |
432 | 5ac1fad3 | Paolo Bonzini | if(mode[0] == 'r') { |
433 | e9d8fbf5 | Paolo Bonzini | s->file = qemu_fopen_ops(s, &unix_read_ops); |
434 | 5ac1fad3 | Paolo Bonzini | } else {
|
435 | e9d8fbf5 | Paolo Bonzini | s->file = qemu_fopen_ops(s, &unix_write_ops); |
436 | 5ac1fad3 | Paolo Bonzini | } |
437 | 5ac1fad3 | Paolo Bonzini | return s->file;
|
438 | 5ac1fad3 | Paolo Bonzini | } |
439 | 5ac1fad3 | Paolo Bonzini | |
440 | 9229bf3c | Paolo Bonzini | static const QEMUFileOps socket_read_ops = { |
441 | 70eb6330 | Paolo Bonzini | .get_fd = socket_get_fd, |
442 | 9229bf3c | Paolo Bonzini | .get_buffer = socket_get_buffer, |
443 | 9229bf3c | Paolo Bonzini | .close = socket_close |
444 | 9229bf3c | Paolo Bonzini | }; |
445 | 9229bf3c | Paolo Bonzini | |
446 | 0cc3f3cc | Paolo Bonzini | static const QEMUFileOps socket_write_ops = { |
447 | 0cc3f3cc | Paolo Bonzini | .get_fd = socket_get_fd, |
448 | 28085f7b | Orit Wasserman | .writev_buffer = socket_writev_buffer, |
449 | 0cc3f3cc | Paolo Bonzini | .close = socket_close |
450 | 0cc3f3cc | Paolo Bonzini | }; |
451 | 0cc3f3cc | Paolo Bonzini | |
452 | bc1256f7 | Michael R. Hines | bool qemu_file_mode_is_not_valid(const char *mode) |
453 | a672b469 | aliguori | { |
454 | 0cc3f3cc | Paolo Bonzini | if (mode == NULL || |
455 | 0cc3f3cc | Paolo Bonzini | (mode[0] != 'r' && mode[0] != 'w') || |
456 | 0cc3f3cc | Paolo Bonzini | mode[1] != 'b' || mode[2] != 0) { |
457 | 0cc3f3cc | Paolo Bonzini | fprintf(stderr, "qemu_fopen: Argument validity check failed\n");
|
458 | bc1256f7 | Michael R. Hines | return true; |
459 | bc1256f7 | Michael R. Hines | } |
460 | bc1256f7 | Michael R. Hines | |
461 | bc1256f7 | Michael R. Hines | return false; |
462 | bc1256f7 | Michael R. Hines | } |
463 | bc1256f7 | Michael R. Hines | |
464 | bc1256f7 | Michael R. Hines | QEMUFile *qemu_fopen_socket(int fd, const char *mode) |
465 | bc1256f7 | Michael R. Hines | { |
466 | bc1256f7 | Michael R. Hines | QEMUFileSocket *s; |
467 | bc1256f7 | Michael R. Hines | |
468 | bc1256f7 | Michael R. Hines | if (qemu_file_mode_is_not_valid(mode)) {
|
469 | 0cc3f3cc | Paolo Bonzini | return NULL; |
470 | 0cc3f3cc | Paolo Bonzini | } |
471 | 0cc3f3cc | Paolo Bonzini | |
472 | 4f080057 | Stefan Weil | s = g_malloc0(sizeof(QEMUFileSocket));
|
473 | a672b469 | aliguori | s->fd = fd; |
474 | 0cc3f3cc | Paolo Bonzini | if (mode[0] == 'w') { |
475 | f9e8cacc | Stefan Hajnoczi | qemu_set_block(s->fd); |
476 | 0cc3f3cc | Paolo Bonzini | s->file = qemu_fopen_ops(s, &socket_write_ops); |
477 | 0cc3f3cc | Paolo Bonzini | } else {
|
478 | 0cc3f3cc | Paolo Bonzini | s->file = qemu_fopen_ops(s, &socket_read_ops); |
479 | 0cc3f3cc | Paolo Bonzini | } |
480 | a672b469 | aliguori | return s->file;
|
481 | a672b469 | aliguori | } |
482 | a672b469 | aliguori | |
483 | a672b469 | aliguori | QEMUFile *qemu_fopen(const char *filename, const char *mode) |
484 | a672b469 | aliguori | { |
485 | a672b469 | aliguori | QEMUFileStdio *s; |
486 | a672b469 | aliguori | |
487 | bc1256f7 | Michael R. Hines | if (qemu_file_mode_is_not_valid(mode)) {
|
488 | 7f79dd28 | Paolo Bonzini | return NULL; |
489 | 7f79dd28 | Paolo Bonzini | } |
490 | 7f79dd28 | Paolo Bonzini | |
491 | 7267c094 | Anthony Liguori | s = g_malloc0(sizeof(QEMUFileStdio));
|
492 | a672b469 | aliguori | |
493 | 7f79dd28 | Paolo Bonzini | s->stdio_file = fopen(filename, mode); |
494 | 7f79dd28 | Paolo Bonzini | if (!s->stdio_file)
|
495 | a672b469 | aliguori | goto fail;
|
496 | c163b5ca | lirans@il.ibm.com | |
497 | 7f79dd28 | Paolo Bonzini | if(mode[0] == 'w') { |
498 | 9229bf3c | Paolo Bonzini | s->file = qemu_fopen_ops(s, &stdio_file_write_ops); |
499 | 7f79dd28 | Paolo Bonzini | } else {
|
500 | 9229bf3c | Paolo Bonzini | s->file = qemu_fopen_ops(s, &stdio_file_read_ops); |
501 | 7f79dd28 | Paolo Bonzini | } |
502 | 7f79dd28 | Paolo Bonzini | return s->file;
|
503 | a672b469 | aliguori | fail:
|
504 | 7267c094 | Anthony Liguori | g_free(s); |
505 | a672b469 | aliguori | return NULL; |
506 | a672b469 | aliguori | } |
507 | a672b469 | aliguori | |
508 | 05fcc848 | Kevin Wolf | static ssize_t block_writev_buffer(void *opaque, struct iovec *iov, int iovcnt, |
509 | 05fcc848 | Kevin Wolf | int64_t pos) |
510 | 05fcc848 | Kevin Wolf | { |
511 | 05fcc848 | Kevin Wolf | int ret;
|
512 | 05fcc848 | Kevin Wolf | QEMUIOVector qiov; |
513 | 05fcc848 | Kevin Wolf | |
514 | 05fcc848 | Kevin Wolf | qemu_iovec_init_external(&qiov, iov, iovcnt); |
515 | 05fcc848 | Kevin Wolf | ret = bdrv_writev_vmstate(opaque, &qiov, pos); |
516 | 05fcc848 | Kevin Wolf | if (ret < 0) { |
517 | 05fcc848 | Kevin Wolf | return ret;
|
518 | 05fcc848 | Kevin Wolf | } |
519 | 05fcc848 | Kevin Wolf | |
520 | 05fcc848 | Kevin Wolf | return qiov.size;
|
521 | 05fcc848 | Kevin Wolf | } |
522 | 05fcc848 | Kevin Wolf | |
523 | 178e08a5 | aliguori | static int block_put_buffer(void *opaque, const uint8_t *buf, |
524 | a672b469 | aliguori | int64_t pos, int size)
|
525 | a672b469 | aliguori | { |
526 | 45566e9c | Christoph Hellwig | bdrv_save_vmstate(opaque, buf, pos, size); |
527 | a672b469 | aliguori | return size;
|
528 | a672b469 | aliguori | } |
529 | a672b469 | aliguori | |
530 | 178e08a5 | aliguori | static int block_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size) |
531 | a672b469 | aliguori | { |
532 | 45566e9c | Christoph Hellwig | return bdrv_load_vmstate(opaque, buf, pos, size);
|
533 | a672b469 | aliguori | } |
534 | a672b469 | aliguori | |
535 | a672b469 | aliguori | static int bdrv_fclose(void *opaque) |
536 | a672b469 | aliguori | { |
537 | ad492c92 | Paolo Bonzini | return bdrv_flush(opaque);
|
538 | a672b469 | aliguori | } |
539 | a672b469 | aliguori | |
540 | 9229bf3c | Paolo Bonzini | static const QEMUFileOps bdrv_read_ops = { |
541 | 9229bf3c | Paolo Bonzini | .get_buffer = block_get_buffer, |
542 | 9229bf3c | Paolo Bonzini | .close = bdrv_fclose |
543 | 9229bf3c | Paolo Bonzini | }; |
544 | 9229bf3c | Paolo Bonzini | |
545 | 9229bf3c | Paolo Bonzini | static const QEMUFileOps bdrv_write_ops = { |
546 | 05fcc848 | Kevin Wolf | .put_buffer = block_put_buffer, |
547 | 05fcc848 | Kevin Wolf | .writev_buffer = block_writev_buffer, |
548 | 05fcc848 | Kevin Wolf | .close = bdrv_fclose |
549 | 9229bf3c | Paolo Bonzini | }; |
550 | 9229bf3c | Paolo Bonzini | |
551 | 45566e9c | Christoph Hellwig | static QEMUFile *qemu_fopen_bdrv(BlockDriverState *bs, int is_writable) |
552 | a672b469 | aliguori | { |
553 | a672b469 | aliguori | if (is_writable)
|
554 | 9229bf3c | Paolo Bonzini | return qemu_fopen_ops(bs, &bdrv_write_ops);
|
555 | 9229bf3c | Paolo Bonzini | return qemu_fopen_ops(bs, &bdrv_read_ops);
|
556 | a672b469 | aliguori | } |
557 | a672b469 | aliguori | |
558 | 9229bf3c | Paolo Bonzini | QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops) |
559 | a672b469 | aliguori | { |
560 | a672b469 | aliguori | QEMUFile *f; |
561 | a672b469 | aliguori | |
562 | 7267c094 | Anthony Liguori | f = g_malloc0(sizeof(QEMUFile));
|
563 | a672b469 | aliguori | |
564 | a672b469 | aliguori | f->opaque = opaque; |
565 | 9229bf3c | Paolo Bonzini | f->ops = ops; |
566 | a672b469 | aliguori | return f;
|
567 | a672b469 | aliguori | } |
568 | a672b469 | aliguori | |
569 | 624b9cc2 | Juan Quintela | int qemu_file_get_error(QEMUFile *f)
|
570 | a672b469 | aliguori | { |
571 | 3961b4dd | Juan Quintela | return f->last_error;
|
572 | a672b469 | aliguori | } |
573 | a672b469 | aliguori | |
574 | 05f28b83 | Paolo Bonzini | static void qemu_file_set_error(QEMUFile *f, int ret) |
575 | 4dabe248 | aliguori | { |
576 | afe41931 | Juan Quintela | if (f->last_error == 0) { |
577 | afe41931 | Juan Quintela | f->last_error = ret; |
578 | afe41931 | Juan Quintela | } |
579 | 4dabe248 | aliguori | } |
580 | 4dabe248 | aliguori | |
581 | d9658c47 | Paolo Bonzini | static inline bool qemu_file_is_writable(QEMUFile *f) |
582 | d9658c47 | Paolo Bonzini | { |
583 | d9658c47 | Paolo Bonzini | return f->ops->writev_buffer || f->ops->put_buffer;
|
584 | d9658c47 | Paolo Bonzini | } |
585 | d9658c47 | Paolo Bonzini | |
586 | cb88aa88 | Orit Wasserman | /**
|
587 | cb88aa88 | Orit Wasserman | * Flushes QEMUFile buffer
|
588 | d82ca915 | Eduardo Habkost | *
|
589 | cb88aa88 | Orit Wasserman | * If there is writev_buffer QEMUFileOps it uses it otherwise uses
|
590 | cb88aa88 | Orit Wasserman | * put_buffer ops.
|
591 | d82ca915 | Eduardo Habkost | */
|
592 | be903b2a | Michael R. Hines | void qemu_fflush(QEMUFile *f)
|
593 | a672b469 | aliguori | { |
594 | cb88aa88 | Orit Wasserman | ssize_t ret = 0;
|
595 | 7311bea3 | Juan Quintela | |
596 | d9658c47 | Paolo Bonzini | if (!qemu_file_is_writable(f)) {
|
597 | 93bf2104 | Paolo Bonzini | return;
|
598 | 93bf2104 | Paolo Bonzini | } |
599 | cb88aa88 | Orit Wasserman | |
600 | d9658c47 | Paolo Bonzini | if (f->ops->writev_buffer) {
|
601 | d9658c47 | Paolo Bonzini | if (f->iovcnt > 0) { |
602 | 05fcc848 | Kevin Wolf | ret = f->ops->writev_buffer(f->opaque, f->iov, f->iovcnt, f->pos); |
603 | 7311bea3 | Juan Quintela | } |
604 | d9658c47 | Paolo Bonzini | } else {
|
605 | d9658c47 | Paolo Bonzini | if (f->buf_index > 0) { |
606 | d9658c47 | Paolo Bonzini | ret = f->ops->put_buffer(f->opaque, f->buf, f->pos, f->buf_index); |
607 | 7ce51f1b | Paolo Bonzini | } |
608 | a672b469 | aliguori | } |
609 | d9658c47 | Paolo Bonzini | if (ret >= 0) { |
610 | d9658c47 | Paolo Bonzini | f->pos += ret; |
611 | d9658c47 | Paolo Bonzini | } |
612 | d9658c47 | Paolo Bonzini | f->buf_index = 0;
|
613 | d9658c47 | Paolo Bonzini | f->iovcnt = 0;
|
614 | 93bf2104 | Paolo Bonzini | if (ret < 0) { |
615 | 93bf2104 | Paolo Bonzini | qemu_file_set_error(f, ret); |
616 | 93bf2104 | Paolo Bonzini | } |
617 | a672b469 | aliguori | } |
618 | a672b469 | aliguori | |
619 | 43487c67 | Michael R. Hines | void ram_control_before_iterate(QEMUFile *f, uint64_t flags)
|
620 | 43487c67 | Michael R. Hines | { |
621 | 43487c67 | Michael R. Hines | int ret = 0; |
622 | 43487c67 | Michael R. Hines | |
623 | 43487c67 | Michael R. Hines | if (f->ops->before_ram_iterate) {
|
624 | 43487c67 | Michael R. Hines | ret = f->ops->before_ram_iterate(f, f->opaque, flags); |
625 | 43487c67 | Michael R. Hines | if (ret < 0) { |
626 | 43487c67 | Michael R. Hines | qemu_file_set_error(f, ret); |
627 | 43487c67 | Michael R. Hines | } |
628 | 43487c67 | Michael R. Hines | } |
629 | 43487c67 | Michael R. Hines | } |
630 | 43487c67 | Michael R. Hines | |
631 | 43487c67 | Michael R. Hines | void ram_control_after_iterate(QEMUFile *f, uint64_t flags)
|
632 | 43487c67 | Michael R. Hines | { |
633 | 43487c67 | Michael R. Hines | int ret = 0; |
634 | 43487c67 | Michael R. Hines | |
635 | 43487c67 | Michael R. Hines | if (f->ops->after_ram_iterate) {
|
636 | 43487c67 | Michael R. Hines | ret = f->ops->after_ram_iterate(f, f->opaque, flags); |
637 | 43487c67 | Michael R. Hines | if (ret < 0) { |
638 | 43487c67 | Michael R. Hines | qemu_file_set_error(f, ret); |
639 | 43487c67 | Michael R. Hines | } |
640 | 43487c67 | Michael R. Hines | } |
641 | 43487c67 | Michael R. Hines | } |
642 | 43487c67 | Michael R. Hines | |
643 | 43487c67 | Michael R. Hines | void ram_control_load_hook(QEMUFile *f, uint64_t flags)
|
644 | 43487c67 | Michael R. Hines | { |
645 | 43487c67 | Michael R. Hines | int ret = 0; |
646 | 43487c67 | Michael R. Hines | |
647 | 43487c67 | Michael R. Hines | if (f->ops->hook_ram_load) {
|
648 | 43487c67 | Michael R. Hines | ret = f->ops->hook_ram_load(f, f->opaque, flags); |
649 | 43487c67 | Michael R. Hines | if (ret < 0) { |
650 | 43487c67 | Michael R. Hines | qemu_file_set_error(f, ret); |
651 | 43487c67 | Michael R. Hines | } |
652 | 43487c67 | Michael R. Hines | } else {
|
653 | 43487c67 | Michael R. Hines | qemu_file_set_error(f, ret); |
654 | 43487c67 | Michael R. Hines | } |
655 | 43487c67 | Michael R. Hines | } |
656 | 43487c67 | Michael R. Hines | |
657 | 43487c67 | Michael R. Hines | size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset, |
658 | 43487c67 | Michael R. Hines | ram_addr_t offset, size_t size, int *bytes_sent)
|
659 | 43487c67 | Michael R. Hines | { |
660 | 43487c67 | Michael R. Hines | if (f->ops->save_page) {
|
661 | 43487c67 | Michael R. Hines | int ret = f->ops->save_page(f, f->opaque, block_offset,
|
662 | 43487c67 | Michael R. Hines | offset, size, bytes_sent); |
663 | 43487c67 | Michael R. Hines | |
664 | 43487c67 | Michael R. Hines | if (ret != RAM_SAVE_CONTROL_DELAYED) {
|
665 | de7b685c | Michael R. Hines | if (bytes_sent && *bytes_sent > 0) { |
666 | 43487c67 | Michael R. Hines | qemu_update_position(f, *bytes_sent); |
667 | 43487c67 | Michael R. Hines | } else if (ret < 0) { |
668 | 43487c67 | Michael R. Hines | qemu_file_set_error(f, ret); |
669 | 43487c67 | Michael R. Hines | } |
670 | 43487c67 | Michael R. Hines | } |
671 | 43487c67 | Michael R. Hines | |
672 | 43487c67 | Michael R. Hines | return ret;
|
673 | 43487c67 | Michael R. Hines | } |
674 | 43487c67 | Michael R. Hines | |
675 | 43487c67 | Michael R. Hines | return RAM_SAVE_CONTROL_NOT_SUPP;
|
676 | 43487c67 | Michael R. Hines | } |
677 | 43487c67 | Michael R. Hines | |
678 | a672b469 | aliguori | static void qemu_fill_buffer(QEMUFile *f) |
679 | a672b469 | aliguori | { |
680 | a672b469 | aliguori | int len;
|
681 | 0046c45b | Juan Quintela | int pending;
|
682 | a672b469 | aliguori | |
683 | d9658c47 | Paolo Bonzini | assert(!qemu_file_is_writable(f)); |
684 | a672b469 | aliguori | |
685 | 0046c45b | Juan Quintela | pending = f->buf_size - f->buf_index; |
686 | 0046c45b | Juan Quintela | if (pending > 0) { |
687 | 0046c45b | Juan Quintela | memmove(f->buf, f->buf + f->buf_index, pending); |
688 | 0046c45b | Juan Quintela | } |
689 | 0046c45b | Juan Quintela | f->buf_index = 0;
|
690 | 0046c45b | Juan Quintela | f->buf_size = pending; |
691 | 0046c45b | Juan Quintela | |
692 | 3f2d38fa | Paolo Bonzini | len = f->ops->get_buffer(f->opaque, f->buf + pending, f->pos, |
693 | 0046c45b | Juan Quintela | IO_BUF_SIZE - pending); |
694 | a672b469 | aliguori | if (len > 0) { |
695 | 0046c45b | Juan Quintela | f->buf_size += len; |
696 | 3f2d38fa | Paolo Bonzini | f->pos += len; |
697 | fa39a30f | Juan Quintela | } else if (len == 0) { |
698 | 02c4a051 | Juan Quintela | qemu_file_set_error(f, -EIO); |
699 | a672b469 | aliguori | } else if (len != -EAGAIN) |
700 | c29110d5 | Eduardo Habkost | qemu_file_set_error(f, len); |
701 | a672b469 | aliguori | } |
702 | a672b469 | aliguori | |
703 | 70eb6330 | Paolo Bonzini | int qemu_get_fd(QEMUFile *f)
|
704 | 70eb6330 | Paolo Bonzini | { |
705 | 70eb6330 | Paolo Bonzini | if (f->ops->get_fd) {
|
706 | 70eb6330 | Paolo Bonzini | return f->ops->get_fd(f->opaque);
|
707 | 70eb6330 | Paolo Bonzini | } |
708 | 70eb6330 | Paolo Bonzini | return -1; |
709 | 70eb6330 | Paolo Bonzini | } |
710 | 70eb6330 | Paolo Bonzini | |
711 | 2b0ce079 | Michael R. Hines | void qemu_update_position(QEMUFile *f, size_t size)
|
712 | 2b0ce079 | Michael R. Hines | { |
713 | 2b0ce079 | Michael R. Hines | f->pos += size; |
714 | 2b0ce079 | Michael R. Hines | } |
715 | 2b0ce079 | Michael R. Hines | |
716 | d82ca915 | Eduardo Habkost | /** Closes the file
|
717 | d82ca915 | Eduardo Habkost | *
|
718 | d82ca915 | Eduardo Habkost | * Returns negative error value if any error happened on previous operations or
|
719 | d82ca915 | Eduardo Habkost | * while closing the file. Returns 0 or positive number on success.
|
720 | d82ca915 | Eduardo Habkost | *
|
721 | d82ca915 | Eduardo Habkost | * The meaning of return value on success depends on the specific backend
|
722 | d82ca915 | Eduardo Habkost | * being used.
|
723 | d82ca915 | Eduardo Habkost | */
|
724 | d82ca915 | Eduardo Habkost | int qemu_fclose(QEMUFile *f)
|
725 | d82ca915 | Eduardo Habkost | { |
726 | 29eee86f | Juan Quintela | int ret;
|
727 | 93bf2104 | Paolo Bonzini | qemu_fflush(f); |
728 | 93bf2104 | Paolo Bonzini | ret = qemu_file_get_error(f); |
729 | 7311bea3 | Juan Quintela | |
730 | 9229bf3c | Paolo Bonzini | if (f->ops->close) {
|
731 | 9229bf3c | Paolo Bonzini | int ret2 = f->ops->close(f->opaque);
|
732 | 29eee86f | Juan Quintela | if (ret >= 0) { |
733 | 29eee86f | Juan Quintela | ret = ret2; |
734 | 29eee86f | Juan Quintela | } |
735 | 7311bea3 | Juan Quintela | } |
736 | d82ca915 | Eduardo Habkost | /* If any error was spotted before closing, we should report it
|
737 | d82ca915 | Eduardo Habkost | * instead of the close() return value.
|
738 | d82ca915 | Eduardo Habkost | */
|
739 | d82ca915 | Eduardo Habkost | if (f->last_error) {
|
740 | d82ca915 | Eduardo Habkost | ret = f->last_error; |
741 | d82ca915 | Eduardo Habkost | } |
742 | 7267c094 | Anthony Liguori | g_free(f); |
743 | a672b469 | aliguori | return ret;
|
744 | a672b469 | aliguori | } |
745 | a672b469 | aliguori | |
746 | b3ea2bdb | Orit Wasserman | static void add_to_iovec(QEMUFile *f, const uint8_t *buf, int size) |
747 | b3ea2bdb | Orit Wasserman | { |
748 | b3ea2bdb | Orit Wasserman | /* check for adjacent buffer and coalesce them */
|
749 | b3ea2bdb | Orit Wasserman | if (f->iovcnt > 0 && buf == f->iov[f->iovcnt - 1].iov_base + |
750 | b3ea2bdb | Orit Wasserman | f->iov[f->iovcnt - 1].iov_len) {
|
751 | b3ea2bdb | Orit Wasserman | f->iov[f->iovcnt - 1].iov_len += size;
|
752 | b3ea2bdb | Orit Wasserman | } else {
|
753 | b3ea2bdb | Orit Wasserman | f->iov[f->iovcnt].iov_base = (uint8_t *)buf; |
754 | b3ea2bdb | Orit Wasserman | f->iov[f->iovcnt++].iov_len = size; |
755 | b3ea2bdb | Orit Wasserman | } |
756 | af74db72 | Paolo Bonzini | |
757 | 4d117247 | Paolo Bonzini | if (f->iovcnt >= MAX_IOV_SIZE) {
|
758 | af74db72 | Paolo Bonzini | qemu_fflush(f); |
759 | af74db72 | Paolo Bonzini | } |
760 | b3ea2bdb | Orit Wasserman | } |
761 | b3ea2bdb | Orit Wasserman | |
762 | 6181ec24 | Orit Wasserman | void qemu_put_buffer_async(QEMUFile *f, const uint8_t *buf, int size) |
763 | 6181ec24 | Orit Wasserman | { |
764 | 7ce51f1b | Paolo Bonzini | if (!f->ops->writev_buffer) {
|
765 | 7ce51f1b | Paolo Bonzini | qemu_put_buffer(f, buf, size); |
766 | 7ce51f1b | Paolo Bonzini | return;
|
767 | 7ce51f1b | Paolo Bonzini | } |
768 | 7ce51f1b | Paolo Bonzini | |
769 | 6181ec24 | Orit Wasserman | if (f->last_error) {
|
770 | 6181ec24 | Orit Wasserman | return;
|
771 | 6181ec24 | Orit Wasserman | } |
772 | 6181ec24 | Orit Wasserman | |
773 | 6181ec24 | Orit Wasserman | f->bytes_xfer += size; |
774 | af74db72 | Paolo Bonzini | add_to_iovec(f, buf, size); |
775 | 6181ec24 | Orit Wasserman | } |
776 | 6181ec24 | Orit Wasserman | |
777 | a672b469 | aliguori | void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size) |
778 | a672b469 | aliguori | { |
779 | a672b469 | aliguori | int l;
|
780 | a672b469 | aliguori | |
781 | c10682cb | Juan Quintela | if (f->last_error) {
|
782 | c10682cb | Juan Quintela | return;
|
783 | c10682cb | Juan Quintela | } |
784 | c10682cb | Juan Quintela | |
785 | c10682cb | Juan Quintela | while (size > 0) { |
786 | a672b469 | aliguori | l = IO_BUF_SIZE - f->buf_index; |
787 | a672b469 | aliguori | if (l > size)
|
788 | a672b469 | aliguori | l = size; |
789 | a672b469 | aliguori | memcpy(f->buf + f->buf_index, buf, l); |
790 | 7ce51f1b | Paolo Bonzini | f->bytes_xfer += size; |
791 | 7ce51f1b | Paolo Bonzini | if (f->ops->writev_buffer) {
|
792 | 7ce51f1b | Paolo Bonzini | add_to_iovec(f, f->buf + f->buf_index, l); |
793 | 4d117247 | Paolo Bonzini | } |
794 | 4d117247 | Paolo Bonzini | f->buf_index += l; |
795 | 4d117247 | Paolo Bonzini | if (f->buf_index == IO_BUF_SIZE) {
|
796 | 4d117247 | Paolo Bonzini | qemu_fflush(f); |
797 | 7ce51f1b | Paolo Bonzini | } |
798 | 6181ec24 | Orit Wasserman | if (qemu_file_get_error(f)) {
|
799 | 6181ec24 | Orit Wasserman | break;
|
800 | 6181ec24 | Orit Wasserman | } |
801 | a672b469 | aliguori | buf += l; |
802 | a672b469 | aliguori | size -= l; |
803 | a672b469 | aliguori | } |
804 | a672b469 | aliguori | } |
805 | a672b469 | aliguori | |
806 | a672b469 | aliguori | void qemu_put_byte(QEMUFile *f, int v) |
807 | a672b469 | aliguori | { |
808 | c10682cb | Juan Quintela | if (f->last_error) {
|
809 | c10682cb | Juan Quintela | return;
|
810 | c10682cb | Juan Quintela | } |
811 | c10682cb | Juan Quintela | |
812 | af74db72 | Paolo Bonzini | f->buf[f->buf_index] = v; |
813 | 7d8a30bb | Orit Wasserman | f->bytes_xfer++; |
814 | 7ce51f1b | Paolo Bonzini | if (f->ops->writev_buffer) {
|
815 | 7ce51f1b | Paolo Bonzini | add_to_iovec(f, f->buf + f->buf_index, 1);
|
816 | 4d117247 | Paolo Bonzini | } |
817 | 4d117247 | Paolo Bonzini | f->buf_index++; |
818 | 4d117247 | Paolo Bonzini | if (f->buf_index == IO_BUF_SIZE) {
|
819 | 4d117247 | Paolo Bonzini | qemu_fflush(f); |
820 | 7ce51f1b | Paolo Bonzini | } |
821 | a672b469 | aliguori | } |
822 | a672b469 | aliguori | |
823 | c6380724 | Juan Quintela | static void qemu_file_skip(QEMUFile *f, int size) |
824 | a672b469 | aliguori | { |
825 | c6380724 | Juan Quintela | if (f->buf_index + size <= f->buf_size) {
|
826 | c6380724 | Juan Quintela | f->buf_index += size; |
827 | c6380724 | Juan Quintela | } |
828 | c6380724 | Juan Quintela | } |
829 | c6380724 | Juan Quintela | |
830 | c6380724 | Juan Quintela | static int qemu_peek_buffer(QEMUFile *f, uint8_t *buf, int size, size_t offset) |
831 | a672b469 | aliguori | { |
832 | c6380724 | Juan Quintela | int pending;
|
833 | c6380724 | Juan Quintela | int index;
|
834 | a672b469 | aliguori | |
835 | d9658c47 | Paolo Bonzini | assert(!qemu_file_is_writable(f)); |
836 | a672b469 | aliguori | |
837 | c6380724 | Juan Quintela | index = f->buf_index + offset; |
838 | c6380724 | Juan Quintela | pending = f->buf_size - index; |
839 | c6380724 | Juan Quintela | if (pending < size) {
|
840 | c6380724 | Juan Quintela | qemu_fill_buffer(f); |
841 | c6380724 | Juan Quintela | index = f->buf_index + offset; |
842 | c6380724 | Juan Quintela | pending = f->buf_size - index; |
843 | c6380724 | Juan Quintela | } |
844 | c6380724 | Juan Quintela | |
845 | c6380724 | Juan Quintela | if (pending <= 0) { |
846 | c6380724 | Juan Quintela | return 0; |
847 | c6380724 | Juan Quintela | } |
848 | c6380724 | Juan Quintela | if (size > pending) {
|
849 | c6380724 | Juan Quintela | size = pending; |
850 | c6380724 | Juan Quintela | } |
851 | c6380724 | Juan Quintela | |
852 | c6380724 | Juan Quintela | memcpy(buf, f->buf + index, size); |
853 | c6380724 | Juan Quintela | return size;
|
854 | c6380724 | Juan Quintela | } |
855 | c6380724 | Juan Quintela | |
856 | c6380724 | Juan Quintela | int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size) |
857 | c6380724 | Juan Quintela | { |
858 | c6380724 | Juan Quintela | int pending = size;
|
859 | c6380724 | Juan Quintela | int done = 0; |
860 | c6380724 | Juan Quintela | |
861 | c6380724 | Juan Quintela | while (pending > 0) { |
862 | c6380724 | Juan Quintela | int res;
|
863 | c6380724 | Juan Quintela | |
864 | c6380724 | Juan Quintela | res = qemu_peek_buffer(f, buf, pending, 0);
|
865 | c6380724 | Juan Quintela | if (res == 0) { |
866 | c6380724 | Juan Quintela | return done;
|
867 | a672b469 | aliguori | } |
868 | c6380724 | Juan Quintela | qemu_file_skip(f, res); |
869 | c6380724 | Juan Quintela | buf += res; |
870 | c6380724 | Juan Quintela | pending -= res; |
871 | c6380724 | Juan Quintela | done += res; |
872 | a672b469 | aliguori | } |
873 | c6380724 | Juan Quintela | return done;
|
874 | a672b469 | aliguori | } |
875 | a672b469 | aliguori | |
876 | c6380724 | Juan Quintela | static int qemu_peek_byte(QEMUFile *f, int offset) |
877 | 811814bd | Juan Quintela | { |
878 | c6380724 | Juan Quintela | int index = f->buf_index + offset;
|
879 | c6380724 | Juan Quintela | |
880 | d9658c47 | Paolo Bonzini | assert(!qemu_file_is_writable(f)); |
881 | 811814bd | Juan Quintela | |
882 | c6380724 | Juan Quintela | if (index >= f->buf_size) {
|
883 | 811814bd | Juan Quintela | qemu_fill_buffer(f); |
884 | c6380724 | Juan Quintela | index = f->buf_index + offset; |
885 | c6380724 | Juan Quintela | if (index >= f->buf_size) {
|
886 | 811814bd | Juan Quintela | return 0; |
887 | b9ce1454 | Juan Quintela | } |
888 | 811814bd | Juan Quintela | } |
889 | c6380724 | Juan Quintela | return f->buf[index];
|
890 | 811814bd | Juan Quintela | } |
891 | 811814bd | Juan Quintela | |
892 | a672b469 | aliguori | int qemu_get_byte(QEMUFile *f)
|
893 | a672b469 | aliguori | { |
894 | 65f3bb3d | Juan Quintela | int result;
|
895 | a672b469 | aliguori | |
896 | c6380724 | Juan Quintela | result = qemu_peek_byte(f, 0);
|
897 | c6380724 | Juan Quintela | qemu_file_skip(f, 1);
|
898 | 65f3bb3d | Juan Quintela | return result;
|
899 | a672b469 | aliguori | } |
900 | a672b469 | aliguori | |
901 | ad55ab42 | Stefan Hajnoczi | int64_t qemu_ftell(QEMUFile *f) |
902 | a672b469 | aliguori | { |
903 | 3f2d38fa | Paolo Bonzini | qemu_fflush(f); |
904 | 3f2d38fa | Paolo Bonzini | return f->pos;
|
905 | a672b469 | aliguori | } |
906 | a672b469 | aliguori | |
907 | a672b469 | aliguori | int qemu_file_rate_limit(QEMUFile *f)
|
908 | a672b469 | aliguori | { |
909 | 1964a397 | Paolo Bonzini | if (qemu_file_get_error(f)) {
|
910 | 1964a397 | Paolo Bonzini | return 1; |
911 | 1964a397 | Paolo Bonzini | } |
912 | 1964a397 | Paolo Bonzini | if (f->xfer_limit > 0 && f->bytes_xfer > f->xfer_limit) { |
913 | 1964a397 | Paolo Bonzini | return 1; |
914 | 1964a397 | Paolo Bonzini | } |
915 | a672b469 | aliguori | return 0; |
916 | a672b469 | aliguori | } |
917 | a672b469 | aliguori | |
918 | 3d002df3 | Michael S. Tsirkin | int64_t qemu_file_get_rate_limit(QEMUFile *f) |
919 | c163b5ca | lirans@il.ibm.com | { |
920 | 1964a397 | Paolo Bonzini | return f->xfer_limit;
|
921 | c163b5ca | lirans@il.ibm.com | } |
922 | c163b5ca | lirans@il.ibm.com | |
923 | 1964a397 | Paolo Bonzini | void qemu_file_set_rate_limit(QEMUFile *f, int64_t limit)
|
924 | 19629537 | Glauber Costa | { |
925 | 1964a397 | Paolo Bonzini | f->xfer_limit = limit; |
926 | 1964a397 | Paolo Bonzini | } |
927 | 19629537 | Glauber Costa | |
928 | 1964a397 | Paolo Bonzini | void qemu_file_reset_rate_limit(QEMUFile *f)
|
929 | 1964a397 | Paolo Bonzini | { |
930 | 1964a397 | Paolo Bonzini | f->bytes_xfer = 0;
|
931 | 19629537 | Glauber Costa | } |
932 | 19629537 | Glauber Costa | |
933 | a672b469 | aliguori | void qemu_put_be16(QEMUFile *f, unsigned int v) |
934 | a672b469 | aliguori | { |
935 | a672b469 | aliguori | qemu_put_byte(f, v >> 8);
|
936 | a672b469 | aliguori | qemu_put_byte(f, v); |
937 | a672b469 | aliguori | } |
938 | a672b469 | aliguori | |
939 | a672b469 | aliguori | void qemu_put_be32(QEMUFile *f, unsigned int v) |
940 | a672b469 | aliguori | { |
941 | a672b469 | aliguori | qemu_put_byte(f, v >> 24);
|
942 | a672b469 | aliguori | qemu_put_byte(f, v >> 16);
|
943 | a672b469 | aliguori | qemu_put_byte(f, v >> 8);
|
944 | a672b469 | aliguori | qemu_put_byte(f, v); |
945 | a672b469 | aliguori | } |
946 | a672b469 | aliguori | |
947 | a672b469 | aliguori | void qemu_put_be64(QEMUFile *f, uint64_t v)
|
948 | a672b469 | aliguori | { |
949 | a672b469 | aliguori | qemu_put_be32(f, v >> 32);
|
950 | a672b469 | aliguori | qemu_put_be32(f, v); |
951 | a672b469 | aliguori | } |
952 | a672b469 | aliguori | |
953 | a672b469 | aliguori | unsigned int qemu_get_be16(QEMUFile *f) |
954 | a672b469 | aliguori | { |
955 | a672b469 | aliguori | unsigned int v; |
956 | a672b469 | aliguori | v = qemu_get_byte(f) << 8;
|
957 | a672b469 | aliguori | v |= qemu_get_byte(f); |
958 | a672b469 | aliguori | return v;
|
959 | a672b469 | aliguori | } |
960 | a672b469 | aliguori | |
961 | a672b469 | aliguori | unsigned int qemu_get_be32(QEMUFile *f) |
962 | a672b469 | aliguori | { |
963 | a672b469 | aliguori | unsigned int v; |
964 | a672b469 | aliguori | v = qemu_get_byte(f) << 24;
|
965 | a672b469 | aliguori | v |= qemu_get_byte(f) << 16;
|
966 | a672b469 | aliguori | v |= qemu_get_byte(f) << 8;
|
967 | a672b469 | aliguori | v |= qemu_get_byte(f); |
968 | a672b469 | aliguori | return v;
|
969 | a672b469 | aliguori | } |
970 | a672b469 | aliguori | |
971 | a672b469 | aliguori | uint64_t qemu_get_be64(QEMUFile *f) |
972 | a672b469 | aliguori | { |
973 | a672b469 | aliguori | uint64_t v; |
974 | a672b469 | aliguori | v = (uint64_t)qemu_get_be32(f) << 32;
|
975 | a672b469 | aliguori | v |= qemu_get_be32(f); |
976 | a672b469 | aliguori | return v;
|
977 | a672b469 | aliguori | } |
978 | a672b469 | aliguori | |
979 | 2ff68d07 | Paolo Bonzini | |
980 | 2ff68d07 | Paolo Bonzini | /* timer */
|
981 | 2ff68d07 | Paolo Bonzini | |
982 | 40daca54 | Alex Bligh | void timer_put(QEMUFile *f, QEMUTimer *ts)
|
983 | 2ff68d07 | Paolo Bonzini | { |
984 | 2ff68d07 | Paolo Bonzini | uint64_t expire_time; |
985 | 2ff68d07 | Paolo Bonzini | |
986 | e93379b0 | Alex Bligh | expire_time = timer_expire_time_ns(ts); |
987 | 2ff68d07 | Paolo Bonzini | qemu_put_be64(f, expire_time); |
988 | 2ff68d07 | Paolo Bonzini | } |
989 | 2ff68d07 | Paolo Bonzini | |
990 | 40daca54 | Alex Bligh | void timer_get(QEMUFile *f, QEMUTimer *ts)
|
991 | 2ff68d07 | Paolo Bonzini | { |
992 | 2ff68d07 | Paolo Bonzini | uint64_t expire_time; |
993 | 2ff68d07 | Paolo Bonzini | |
994 | 2ff68d07 | Paolo Bonzini | expire_time = qemu_get_be64(f); |
995 | 2ff68d07 | Paolo Bonzini | if (expire_time != -1) { |
996 | bc72ad67 | Alex Bligh | timer_mod_ns(ts, expire_time); |
997 | 2ff68d07 | Paolo Bonzini | } else {
|
998 | bc72ad67 | Alex Bligh | timer_del(ts); |
999 | 2ff68d07 | Paolo Bonzini | } |
1000 | 2ff68d07 | Paolo Bonzini | } |
1001 | 2ff68d07 | Paolo Bonzini | |
1002 | 2ff68d07 | Paolo Bonzini | |
1003 | cdae5cfb | Gerd Hoffmann | /* bool */
|
1004 | cdae5cfb | Gerd Hoffmann | |
1005 | cdae5cfb | Gerd Hoffmann | static int get_bool(QEMUFile *f, void *pv, size_t size) |
1006 | cdae5cfb | Gerd Hoffmann | { |
1007 | cdae5cfb | Gerd Hoffmann | bool *v = pv;
|
1008 | cdae5cfb | Gerd Hoffmann | *v = qemu_get_byte(f); |
1009 | cdae5cfb | Gerd Hoffmann | return 0; |
1010 | cdae5cfb | Gerd Hoffmann | } |
1011 | cdae5cfb | Gerd Hoffmann | |
1012 | cdae5cfb | Gerd Hoffmann | static void put_bool(QEMUFile *f, void *pv, size_t size) |
1013 | cdae5cfb | Gerd Hoffmann | { |
1014 | cdae5cfb | Gerd Hoffmann | bool *v = pv;
|
1015 | cdae5cfb | Gerd Hoffmann | qemu_put_byte(f, *v); |
1016 | cdae5cfb | Gerd Hoffmann | } |
1017 | cdae5cfb | Gerd Hoffmann | |
1018 | cdae5cfb | Gerd Hoffmann | const VMStateInfo vmstate_info_bool = {
|
1019 | cdae5cfb | Gerd Hoffmann | .name = "bool",
|
1020 | cdae5cfb | Gerd Hoffmann | .get = get_bool, |
1021 | cdae5cfb | Gerd Hoffmann | .put = put_bool, |
1022 | cdae5cfb | Gerd Hoffmann | }; |
1023 | cdae5cfb | Gerd Hoffmann | |
1024 | 9ed7d6ae | Juan Quintela | /* 8 bit int */
|
1025 | 9ed7d6ae | Juan Quintela | |
1026 | 9ed7d6ae | Juan Quintela | static int get_int8(QEMUFile *f, void *pv, size_t size) |
1027 | 9ed7d6ae | Juan Quintela | { |
1028 | 9ed7d6ae | Juan Quintela | int8_t *v = pv; |
1029 | 9ed7d6ae | Juan Quintela | qemu_get_s8s(f, v); |
1030 | 9ed7d6ae | Juan Quintela | return 0; |
1031 | 9ed7d6ae | Juan Quintela | } |
1032 | 9ed7d6ae | Juan Quintela | |
1033 | 84e2e3eb | Juan Quintela | static void put_int8(QEMUFile *f, void *pv, size_t size) |
1034 | 9ed7d6ae | Juan Quintela | { |
1035 | 84e2e3eb | Juan Quintela | int8_t *v = pv; |
1036 | 9ed7d6ae | Juan Quintela | qemu_put_s8s(f, v); |
1037 | 9ed7d6ae | Juan Quintela | } |
1038 | 9ed7d6ae | Juan Quintela | |
1039 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_int8 = {
|
1040 | 9ed7d6ae | Juan Quintela | .name = "int8",
|
1041 | 9ed7d6ae | Juan Quintela | .get = get_int8, |
1042 | 9ed7d6ae | Juan Quintela | .put = put_int8, |
1043 | 9ed7d6ae | Juan Quintela | }; |
1044 | 9ed7d6ae | Juan Quintela | |
1045 | 9ed7d6ae | Juan Quintela | /* 16 bit int */
|
1046 | 9ed7d6ae | Juan Quintela | |
1047 | 9ed7d6ae | Juan Quintela | static int get_int16(QEMUFile *f, void *pv, size_t size) |
1048 | 9ed7d6ae | Juan Quintela | { |
1049 | 9ed7d6ae | Juan Quintela | int16_t *v = pv; |
1050 | 9ed7d6ae | Juan Quintela | qemu_get_sbe16s(f, v); |
1051 | 9ed7d6ae | Juan Quintela | return 0; |
1052 | 9ed7d6ae | Juan Quintela | } |
1053 | 9ed7d6ae | Juan Quintela | |
1054 | 84e2e3eb | Juan Quintela | static void put_int16(QEMUFile *f, void *pv, size_t size) |
1055 | 9ed7d6ae | Juan Quintela | { |
1056 | 84e2e3eb | Juan Quintela | int16_t *v = pv; |
1057 | 9ed7d6ae | Juan Quintela | qemu_put_sbe16s(f, v); |
1058 | 9ed7d6ae | Juan Quintela | } |
1059 | 9ed7d6ae | Juan Quintela | |
1060 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_int16 = {
|
1061 | 9ed7d6ae | Juan Quintela | .name = "int16",
|
1062 | 9ed7d6ae | Juan Quintela | .get = get_int16, |
1063 | 9ed7d6ae | Juan Quintela | .put = put_int16, |
1064 | 9ed7d6ae | Juan Quintela | }; |
1065 | 9ed7d6ae | Juan Quintela | |
1066 | 9ed7d6ae | Juan Quintela | /* 32 bit int */
|
1067 | 9ed7d6ae | Juan Quintela | |
1068 | 9ed7d6ae | Juan Quintela | static int get_int32(QEMUFile *f, void *pv, size_t size) |
1069 | 9ed7d6ae | Juan Quintela | { |
1070 | 9ed7d6ae | Juan Quintela | int32_t *v = pv; |
1071 | 9ed7d6ae | Juan Quintela | qemu_get_sbe32s(f, v); |
1072 | 9ed7d6ae | Juan Quintela | return 0; |
1073 | 9ed7d6ae | Juan Quintela | } |
1074 | 9ed7d6ae | Juan Quintela | |
1075 | 84e2e3eb | Juan Quintela | static void put_int32(QEMUFile *f, void *pv, size_t size) |
1076 | 9ed7d6ae | Juan Quintela | { |
1077 | 84e2e3eb | Juan Quintela | int32_t *v = pv; |
1078 | 9ed7d6ae | Juan Quintela | qemu_put_sbe32s(f, v); |
1079 | 9ed7d6ae | Juan Quintela | } |
1080 | 9ed7d6ae | Juan Quintela | |
1081 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_int32 = {
|
1082 | 9ed7d6ae | Juan Quintela | .name = "int32",
|
1083 | 9ed7d6ae | Juan Quintela | .get = get_int32, |
1084 | 9ed7d6ae | Juan Quintela | .put = put_int32, |
1085 | 9ed7d6ae | Juan Quintela | }; |
1086 | 9ed7d6ae | Juan Quintela | |
1087 | 82501660 | Juan Quintela | /* 32 bit int. See that the received value is the same than the one
|
1088 | 82501660 | Juan Quintela | in the field */
|
1089 | 82501660 | Juan Quintela | |
1090 | 82501660 | Juan Quintela | static int get_int32_equal(QEMUFile *f, void *pv, size_t size) |
1091 | 82501660 | Juan Quintela | { |
1092 | 82501660 | Juan Quintela | int32_t *v = pv; |
1093 | 82501660 | Juan Quintela | int32_t v2; |
1094 | 82501660 | Juan Quintela | qemu_get_sbe32s(f, &v2); |
1095 | 82501660 | Juan Quintela | |
1096 | 82501660 | Juan Quintela | if (*v == v2)
|
1097 | 82501660 | Juan Quintela | return 0; |
1098 | 82501660 | Juan Quintela | return -EINVAL;
|
1099 | 82501660 | Juan Quintela | } |
1100 | 82501660 | Juan Quintela | |
1101 | 82501660 | Juan Quintela | const VMStateInfo vmstate_info_int32_equal = {
|
1102 | 82501660 | Juan Quintela | .name = "int32 equal",
|
1103 | 82501660 | Juan Quintela | .get = get_int32_equal, |
1104 | 82501660 | Juan Quintela | .put = put_int32, |
1105 | 82501660 | Juan Quintela | }; |
1106 | 82501660 | Juan Quintela | |
1107 | 0a031e0a | Juan Quintela | /* 32 bit int. See that the received value is the less or the same
|
1108 | 0a031e0a | Juan Quintela | than the one in the field */
|
1109 | 0a031e0a | Juan Quintela | |
1110 | 0a031e0a | Juan Quintela | static int get_int32_le(QEMUFile *f, void *pv, size_t size) |
1111 | 0a031e0a | Juan Quintela | { |
1112 | 0a031e0a | Juan Quintela | int32_t *old = pv; |
1113 | 0a031e0a | Juan Quintela | int32_t new; |
1114 | 0a031e0a | Juan Quintela | qemu_get_sbe32s(f, &new); |
1115 | 0a031e0a | Juan Quintela | |
1116 | 0a031e0a | Juan Quintela | if (*old <= new)
|
1117 | 0a031e0a | Juan Quintela | return 0; |
1118 | 0a031e0a | Juan Quintela | return -EINVAL;
|
1119 | 0a031e0a | Juan Quintela | } |
1120 | 0a031e0a | Juan Quintela | |
1121 | 0a031e0a | Juan Quintela | const VMStateInfo vmstate_info_int32_le = {
|
1122 | 0a031e0a | Juan Quintela | .name = "int32 equal",
|
1123 | 0a031e0a | Juan Quintela | .get = get_int32_le, |
1124 | 0a031e0a | Juan Quintela | .put = put_int32, |
1125 | 0a031e0a | Juan Quintela | }; |
1126 | 0a031e0a | Juan Quintela | |
1127 | 9ed7d6ae | Juan Quintela | /* 64 bit int */
|
1128 | 9ed7d6ae | Juan Quintela | |
1129 | 9ed7d6ae | Juan Quintela | static int get_int64(QEMUFile *f, void *pv, size_t size) |
1130 | 9ed7d6ae | Juan Quintela | { |
1131 | 9ed7d6ae | Juan Quintela | int64_t *v = pv; |
1132 | 9ed7d6ae | Juan Quintela | qemu_get_sbe64s(f, v); |
1133 | 9ed7d6ae | Juan Quintela | return 0; |
1134 | 9ed7d6ae | Juan Quintela | } |
1135 | 9ed7d6ae | Juan Quintela | |
1136 | 84e2e3eb | Juan Quintela | static void put_int64(QEMUFile *f, void *pv, size_t size) |
1137 | 9ed7d6ae | Juan Quintela | { |
1138 | 84e2e3eb | Juan Quintela | int64_t *v = pv; |
1139 | 9ed7d6ae | Juan Quintela | qemu_put_sbe64s(f, v); |
1140 | 9ed7d6ae | Juan Quintela | } |
1141 | 9ed7d6ae | Juan Quintela | |
1142 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_int64 = {
|
1143 | 9ed7d6ae | Juan Quintela | .name = "int64",
|
1144 | 9ed7d6ae | Juan Quintela | .get = get_int64, |
1145 | 9ed7d6ae | Juan Quintela | .put = put_int64, |
1146 | 9ed7d6ae | Juan Quintela | }; |
1147 | 9ed7d6ae | Juan Quintela | |
1148 | 9ed7d6ae | Juan Quintela | /* 8 bit unsigned int */
|
1149 | 9ed7d6ae | Juan Quintela | |
1150 | 9ed7d6ae | Juan Quintela | static int get_uint8(QEMUFile *f, void *pv, size_t size) |
1151 | 9ed7d6ae | Juan Quintela | { |
1152 | 9ed7d6ae | Juan Quintela | uint8_t *v = pv; |
1153 | 9ed7d6ae | Juan Quintela | qemu_get_8s(f, v); |
1154 | 9ed7d6ae | Juan Quintela | return 0; |
1155 | 9ed7d6ae | Juan Quintela | } |
1156 | 9ed7d6ae | Juan Quintela | |
1157 | 84e2e3eb | Juan Quintela | static void put_uint8(QEMUFile *f, void *pv, size_t size) |
1158 | 9ed7d6ae | Juan Quintela | { |
1159 | 84e2e3eb | Juan Quintela | uint8_t *v = pv; |
1160 | 9ed7d6ae | Juan Quintela | qemu_put_8s(f, v); |
1161 | 9ed7d6ae | Juan Quintela | } |
1162 | 9ed7d6ae | Juan Quintela | |
1163 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_uint8 = {
|
1164 | 9ed7d6ae | Juan Quintela | .name = "uint8",
|
1165 | 9ed7d6ae | Juan Quintela | .get = get_uint8, |
1166 | 9ed7d6ae | Juan Quintela | .put = put_uint8, |
1167 | 9ed7d6ae | Juan Quintela | }; |
1168 | 9ed7d6ae | Juan Quintela | |
1169 | 9ed7d6ae | Juan Quintela | /* 16 bit unsigned int */
|
1170 | 9ed7d6ae | Juan Quintela | |
1171 | 9ed7d6ae | Juan Quintela | static int get_uint16(QEMUFile *f, void *pv, size_t size) |
1172 | 9ed7d6ae | Juan Quintela | { |
1173 | 9ed7d6ae | Juan Quintela | uint16_t *v = pv; |
1174 | 9ed7d6ae | Juan Quintela | qemu_get_be16s(f, v); |
1175 | 9ed7d6ae | Juan Quintela | return 0; |
1176 | 9ed7d6ae | Juan Quintela | } |
1177 | 9ed7d6ae | Juan Quintela | |
1178 | 84e2e3eb | Juan Quintela | static void put_uint16(QEMUFile *f, void *pv, size_t size) |
1179 | 9ed7d6ae | Juan Quintela | { |
1180 | 84e2e3eb | Juan Quintela | uint16_t *v = pv; |
1181 | 9ed7d6ae | Juan Quintela | qemu_put_be16s(f, v); |
1182 | 9ed7d6ae | Juan Quintela | } |
1183 | 9ed7d6ae | Juan Quintela | |
1184 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_uint16 = {
|
1185 | 9ed7d6ae | Juan Quintela | .name = "uint16",
|
1186 | 9ed7d6ae | Juan Quintela | .get = get_uint16, |
1187 | 9ed7d6ae | Juan Quintela | .put = put_uint16, |
1188 | 9ed7d6ae | Juan Quintela | }; |
1189 | 9ed7d6ae | Juan Quintela | |
1190 | 9ed7d6ae | Juan Quintela | /* 32 bit unsigned int */
|
1191 | 9ed7d6ae | Juan Quintela | |
1192 | 9ed7d6ae | Juan Quintela | static int get_uint32(QEMUFile *f, void *pv, size_t size) |
1193 | 9ed7d6ae | Juan Quintela | { |
1194 | 9ed7d6ae | Juan Quintela | uint32_t *v = pv; |
1195 | 9ed7d6ae | Juan Quintela | qemu_get_be32s(f, v); |
1196 | 9ed7d6ae | Juan Quintela | return 0; |
1197 | 9ed7d6ae | Juan Quintela | } |
1198 | 9ed7d6ae | Juan Quintela | |
1199 | 84e2e3eb | Juan Quintela | static void put_uint32(QEMUFile *f, void *pv, size_t size) |
1200 | 9ed7d6ae | Juan Quintela | { |
1201 | 84e2e3eb | Juan Quintela | uint32_t *v = pv; |
1202 | 9ed7d6ae | Juan Quintela | qemu_put_be32s(f, v); |
1203 | 9ed7d6ae | Juan Quintela | } |
1204 | 9ed7d6ae | Juan Quintela | |
1205 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_uint32 = {
|
1206 | 9ed7d6ae | Juan Quintela | .name = "uint32",
|
1207 | 9ed7d6ae | Juan Quintela | .get = get_uint32, |
1208 | 9ed7d6ae | Juan Quintela | .put = put_uint32, |
1209 | 9ed7d6ae | Juan Quintela | }; |
1210 | 9ed7d6ae | Juan Quintela | |
1211 | 9122a8fe | Juan Quintela | /* 32 bit uint. See that the received value is the same than the one
|
1212 | 9122a8fe | Juan Quintela | in the field */
|
1213 | 9122a8fe | Juan Quintela | |
1214 | 9122a8fe | Juan Quintela | static int get_uint32_equal(QEMUFile *f, void *pv, size_t size) |
1215 | 9122a8fe | Juan Quintela | { |
1216 | 9122a8fe | Juan Quintela | uint32_t *v = pv; |
1217 | 9122a8fe | Juan Quintela | uint32_t v2; |
1218 | 9122a8fe | Juan Quintela | qemu_get_be32s(f, &v2); |
1219 | 9122a8fe | Juan Quintela | |
1220 | 9122a8fe | Juan Quintela | if (*v == v2) {
|
1221 | 9122a8fe | Juan Quintela | return 0; |
1222 | 9122a8fe | Juan Quintela | } |
1223 | 9122a8fe | Juan Quintela | return -EINVAL;
|
1224 | 9122a8fe | Juan Quintela | } |
1225 | 9122a8fe | Juan Quintela | |
1226 | 9122a8fe | Juan Quintela | const VMStateInfo vmstate_info_uint32_equal = {
|
1227 | 9122a8fe | Juan Quintela | .name = "uint32 equal",
|
1228 | 9122a8fe | Juan Quintela | .get = get_uint32_equal, |
1229 | 9122a8fe | Juan Quintela | .put = put_uint32, |
1230 | 9122a8fe | Juan Quintela | }; |
1231 | 9122a8fe | Juan Quintela | |
1232 | 9ed7d6ae | Juan Quintela | /* 64 bit unsigned int */
|
1233 | 9ed7d6ae | Juan Quintela | |
1234 | 9ed7d6ae | Juan Quintela | static int get_uint64(QEMUFile *f, void *pv, size_t size) |
1235 | 9ed7d6ae | Juan Quintela | { |
1236 | 9ed7d6ae | Juan Quintela | uint64_t *v = pv; |
1237 | 9ed7d6ae | Juan Quintela | qemu_get_be64s(f, v); |
1238 | 9ed7d6ae | Juan Quintela | return 0; |
1239 | 9ed7d6ae | Juan Quintela | } |
1240 | 9ed7d6ae | Juan Quintela | |
1241 | 84e2e3eb | Juan Quintela | static void put_uint64(QEMUFile *f, void *pv, size_t size) |
1242 | 9ed7d6ae | Juan Quintela | { |
1243 | 84e2e3eb | Juan Quintela | uint64_t *v = pv; |
1244 | 9ed7d6ae | Juan Quintela | qemu_put_be64s(f, v); |
1245 | 9ed7d6ae | Juan Quintela | } |
1246 | 9ed7d6ae | Juan Quintela | |
1247 | 9ed7d6ae | Juan Quintela | const VMStateInfo vmstate_info_uint64 = {
|
1248 | 9ed7d6ae | Juan Quintela | .name = "uint64",
|
1249 | 9ed7d6ae | Juan Quintela | .get = get_uint64, |
1250 | 9ed7d6ae | Juan Quintela | .put = put_uint64, |
1251 | 9ed7d6ae | Juan Quintela | }; |
1252 | 9ed7d6ae | Juan Quintela | |
1253 | e344b8a1 | David Gibson | /* 64 bit unsigned int. See that the received value is the same than the one
|
1254 | e344b8a1 | David Gibson | in the field */
|
1255 | e344b8a1 | David Gibson | |
1256 | e344b8a1 | David Gibson | static int get_uint64_equal(QEMUFile *f, void *pv, size_t size) |
1257 | e344b8a1 | David Gibson | { |
1258 | e344b8a1 | David Gibson | uint64_t *v = pv; |
1259 | e344b8a1 | David Gibson | uint64_t v2; |
1260 | e344b8a1 | David Gibson | qemu_get_be64s(f, &v2); |
1261 | e344b8a1 | David Gibson | |
1262 | e344b8a1 | David Gibson | if (*v == v2) {
|
1263 | e344b8a1 | David Gibson | return 0; |
1264 | e344b8a1 | David Gibson | } |
1265 | e344b8a1 | David Gibson | return -EINVAL;
|
1266 | e344b8a1 | David Gibson | } |
1267 | e344b8a1 | David Gibson | |
1268 | e344b8a1 | David Gibson | const VMStateInfo vmstate_info_uint64_equal = {
|
1269 | e344b8a1 | David Gibson | .name = "int64 equal",
|
1270 | e344b8a1 | David Gibson | .get = get_uint64_equal, |
1271 | e344b8a1 | David Gibson | .put = put_uint64, |
1272 | e344b8a1 | David Gibson | }; |
1273 | e344b8a1 | David Gibson | |
1274 | 80cd83e7 | Juan Quintela | /* 8 bit int. See that the received value is the same than the one
|
1275 | 80cd83e7 | Juan Quintela | in the field */
|
1276 | 80cd83e7 | Juan Quintela | |
1277 | 80cd83e7 | Juan Quintela | static int get_uint8_equal(QEMUFile *f, void *pv, size_t size) |
1278 | 80cd83e7 | Juan Quintela | { |
1279 | 80cd83e7 | Juan Quintela | uint8_t *v = pv; |
1280 | 80cd83e7 | Juan Quintela | uint8_t v2; |
1281 | 80cd83e7 | Juan Quintela | qemu_get_8s(f, &v2); |
1282 | 80cd83e7 | Juan Quintela | |
1283 | 80cd83e7 | Juan Quintela | if (*v == v2)
|
1284 | 80cd83e7 | Juan Quintela | return 0; |
1285 | 80cd83e7 | Juan Quintela | return -EINVAL;
|
1286 | 80cd83e7 | Juan Quintela | } |
1287 | 80cd83e7 | Juan Quintela | |
1288 | 80cd83e7 | Juan Quintela | const VMStateInfo vmstate_info_uint8_equal = {
|
1289 | aa1cce69 | Juan Quintela | .name = "uint8 equal",
|
1290 | 80cd83e7 | Juan Quintela | .get = get_uint8_equal, |
1291 | 80cd83e7 | Juan Quintela | .put = put_uint8, |
1292 | 80cd83e7 | Juan Quintela | }; |
1293 | 80cd83e7 | Juan Quintela | |
1294 | dc3b83a0 | Juan Quintela | /* 16 bit unsigned int int. See that the received value is the same than the one
|
1295 | dc3b83a0 | Juan Quintela | in the field */
|
1296 | dc3b83a0 | Juan Quintela | |
1297 | dc3b83a0 | Juan Quintela | static int get_uint16_equal(QEMUFile *f, void *pv, size_t size) |
1298 | dc3b83a0 | Juan Quintela | { |
1299 | dc3b83a0 | Juan Quintela | uint16_t *v = pv; |
1300 | dc3b83a0 | Juan Quintela | uint16_t v2; |
1301 | dc3b83a0 | Juan Quintela | qemu_get_be16s(f, &v2); |
1302 | dc3b83a0 | Juan Quintela | |
1303 | dc3b83a0 | Juan Quintela | if (*v == v2)
|
1304 | dc3b83a0 | Juan Quintela | return 0; |
1305 | dc3b83a0 | Juan Quintela | return -EINVAL;
|
1306 | dc3b83a0 | Juan Quintela | } |
1307 | dc3b83a0 | Juan Quintela | |
1308 | dc3b83a0 | Juan Quintela | const VMStateInfo vmstate_info_uint16_equal = {
|
1309 | dc3b83a0 | Juan Quintela | .name = "uint16 equal",
|
1310 | dc3b83a0 | Juan Quintela | .get = get_uint16_equal, |
1311 | dc3b83a0 | Juan Quintela | .put = put_uint16, |
1312 | dc3b83a0 | Juan Quintela | }; |
1313 | dc3b83a0 | Juan Quintela | |
1314 | 213945e4 | David Gibson | /* floating point */
|
1315 | 213945e4 | David Gibson | |
1316 | 213945e4 | David Gibson | static int get_float64(QEMUFile *f, void *pv, size_t size) |
1317 | 213945e4 | David Gibson | { |
1318 | 213945e4 | David Gibson | float64 *v = pv; |
1319 | 213945e4 | David Gibson | |
1320 | 213945e4 | David Gibson | *v = make_float64(qemu_get_be64(f)); |
1321 | 213945e4 | David Gibson | return 0; |
1322 | 213945e4 | David Gibson | } |
1323 | 213945e4 | David Gibson | |
1324 | 213945e4 | David Gibson | static void put_float64(QEMUFile *f, void *pv, size_t size) |
1325 | 213945e4 | David Gibson | { |
1326 | 213945e4 | David Gibson | uint64_t *v = pv; |
1327 | 213945e4 | David Gibson | |
1328 | 213945e4 | David Gibson | qemu_put_be64(f, float64_val(*v)); |
1329 | 213945e4 | David Gibson | } |
1330 | 213945e4 | David Gibson | |
1331 | 213945e4 | David Gibson | const VMStateInfo vmstate_info_float64 = {
|
1332 | 213945e4 | David Gibson | .name = "float64",
|
1333 | 213945e4 | David Gibson | .get = get_float64, |
1334 | 213945e4 | David Gibson | .put = put_float64, |
1335 | 213945e4 | David Gibson | }; |
1336 | 213945e4 | David Gibson | |
1337 | dde0463b | Juan Quintela | /* timers */
|
1338 | dde0463b | Juan Quintela | |
1339 | dde0463b | Juan Quintela | static int get_timer(QEMUFile *f, void *pv, size_t size) |
1340 | dde0463b | Juan Quintela | { |
1341 | dde0463b | Juan Quintela | QEMUTimer *v = pv; |
1342 | 40daca54 | Alex Bligh | timer_get(f, v); |
1343 | dde0463b | Juan Quintela | return 0; |
1344 | dde0463b | Juan Quintela | } |
1345 | dde0463b | Juan Quintela | |
1346 | 84e2e3eb | Juan Quintela | static void put_timer(QEMUFile *f, void *pv, size_t size) |
1347 | dde0463b | Juan Quintela | { |
1348 | 84e2e3eb | Juan Quintela | QEMUTimer *v = pv; |
1349 | 40daca54 | Alex Bligh | timer_put(f, v); |
1350 | dde0463b | Juan Quintela | } |
1351 | dde0463b | Juan Quintela | |
1352 | dde0463b | Juan Quintela | const VMStateInfo vmstate_info_timer = {
|
1353 | dde0463b | Juan Quintela | .name = "timer",
|
1354 | dde0463b | Juan Quintela | .get = get_timer, |
1355 | dde0463b | Juan Quintela | .put = put_timer, |
1356 | dde0463b | Juan Quintela | }; |
1357 | dde0463b | Juan Quintela | |
1358 | 6f67c50f | Juan Quintela | /* uint8_t buffers */
|
1359 | 6f67c50f | Juan Quintela | |
1360 | 6f67c50f | Juan Quintela | static int get_buffer(QEMUFile *f, void *pv, size_t size) |
1361 | 6f67c50f | Juan Quintela | { |
1362 | 6f67c50f | Juan Quintela | uint8_t *v = pv; |
1363 | 6f67c50f | Juan Quintela | qemu_get_buffer(f, v, size); |
1364 | 6f67c50f | Juan Quintela | return 0; |
1365 | 6f67c50f | Juan Quintela | } |
1366 | 6f67c50f | Juan Quintela | |
1367 | 84e2e3eb | Juan Quintela | static void put_buffer(QEMUFile *f, void *pv, size_t size) |
1368 | 6f67c50f | Juan Quintela | { |
1369 | 84e2e3eb | Juan Quintela | uint8_t *v = pv; |
1370 | 6f67c50f | Juan Quintela | qemu_put_buffer(f, v, size); |
1371 | 6f67c50f | Juan Quintela | } |
1372 | 6f67c50f | Juan Quintela | |
1373 | 6f67c50f | Juan Quintela | const VMStateInfo vmstate_info_buffer = {
|
1374 | 6f67c50f | Juan Quintela | .name = "buffer",
|
1375 | 6f67c50f | Juan Quintela | .get = get_buffer, |
1376 | 6f67c50f | Juan Quintela | .put = put_buffer, |
1377 | 6f67c50f | Juan Quintela | }; |
1378 | 6f67c50f | Juan Quintela | |
1379 | 76507c75 | Juan Quintela | /* unused buffers: space that was used for some fields that are
|
1380 | 61cc8701 | Stefan Weil | not useful anymore */
|
1381 | 76507c75 | Juan Quintela | |
1382 | 76507c75 | Juan Quintela | static int get_unused_buffer(QEMUFile *f, void *pv, size_t size) |
1383 | 76507c75 | Juan Quintela | { |
1384 | 21174c34 | Jan Kiszka | uint8_t buf[1024];
|
1385 | 21174c34 | Jan Kiszka | int block_len;
|
1386 | 21174c34 | Jan Kiszka | |
1387 | 21174c34 | Jan Kiszka | while (size > 0) { |
1388 | 21174c34 | Jan Kiszka | block_len = MIN(sizeof(buf), size);
|
1389 | 21174c34 | Jan Kiszka | size -= block_len; |
1390 | 21174c34 | Jan Kiszka | qemu_get_buffer(f, buf, block_len); |
1391 | 21174c34 | Jan Kiszka | } |
1392 | 21174c34 | Jan Kiszka | return 0; |
1393 | 76507c75 | Juan Quintela | } |
1394 | 76507c75 | Juan Quintela | |
1395 | 76507c75 | Juan Quintela | static void put_unused_buffer(QEMUFile *f, void *pv, size_t size) |
1396 | 76507c75 | Juan Quintela | { |
1397 | 21174c34 | Jan Kiszka | static const uint8_t buf[1024]; |
1398 | 21174c34 | Jan Kiszka | int block_len;
|
1399 | 21174c34 | Jan Kiszka | |
1400 | 21174c34 | Jan Kiszka | while (size > 0) { |
1401 | 21174c34 | Jan Kiszka | block_len = MIN(sizeof(buf), size);
|
1402 | 21174c34 | Jan Kiszka | size -= block_len; |
1403 | 21174c34 | Jan Kiszka | qemu_put_buffer(f, buf, block_len); |
1404 | 21174c34 | Jan Kiszka | } |
1405 | 76507c75 | Juan Quintela | } |
1406 | 76507c75 | Juan Quintela | |
1407 | 76507c75 | Juan Quintela | const VMStateInfo vmstate_info_unused_buffer = {
|
1408 | 76507c75 | Juan Quintela | .name = "unused_buffer",
|
1409 | 76507c75 | Juan Quintela | .get = get_unused_buffer, |
1410 | 76507c75 | Juan Quintela | .put = put_unused_buffer, |
1411 | 76507c75 | Juan Quintela | }; |
1412 | 76507c75 | Juan Quintela | |
1413 | 08e99e29 | Peter Maydell | /* bitmaps (as defined by bitmap.h). Note that size here is the size
|
1414 | 08e99e29 | Peter Maydell | * of the bitmap in bits. The on-the-wire format of a bitmap is 64
|
1415 | 08e99e29 | Peter Maydell | * bit words with the bits in big endian order. The in-memory format
|
1416 | 08e99e29 | Peter Maydell | * is an array of 'unsigned long', which may be either 32 or 64 bits.
|
1417 | 08e99e29 | Peter Maydell | */
|
1418 | 08e99e29 | Peter Maydell | /* This is the number of 64 bit words sent over the wire */
|
1419 | 08e99e29 | Peter Maydell | #define BITS_TO_U64S(nr) DIV_ROUND_UP(nr, 64) |
1420 | 08e99e29 | Peter Maydell | static int get_bitmap(QEMUFile *f, void *pv, size_t size) |
1421 | 08e99e29 | Peter Maydell | { |
1422 | 08e99e29 | Peter Maydell | unsigned long *bmp = pv; |
1423 | 08e99e29 | Peter Maydell | int i, idx = 0; |
1424 | 08e99e29 | Peter Maydell | for (i = 0; i < BITS_TO_U64S(size); i++) { |
1425 | 08e99e29 | Peter Maydell | uint64_t w = qemu_get_be64(f); |
1426 | 08e99e29 | Peter Maydell | bmp[idx++] = w; |
1427 | 08e99e29 | Peter Maydell | if (sizeof(unsigned long) == 4 && idx < BITS_TO_LONGS(size)) { |
1428 | 08e99e29 | Peter Maydell | bmp[idx++] = w >> 32;
|
1429 | 08e99e29 | Peter Maydell | } |
1430 | 08e99e29 | Peter Maydell | } |
1431 | 08e99e29 | Peter Maydell | return 0; |
1432 | 08e99e29 | Peter Maydell | } |
1433 | 08e99e29 | Peter Maydell | |
1434 | 08e99e29 | Peter Maydell | static void put_bitmap(QEMUFile *f, void *pv, size_t size) |
1435 | 08e99e29 | Peter Maydell | { |
1436 | 08e99e29 | Peter Maydell | unsigned long *bmp = pv; |
1437 | 08e99e29 | Peter Maydell | int i, idx = 0; |
1438 | 08e99e29 | Peter Maydell | for (i = 0; i < BITS_TO_U64S(size); i++) { |
1439 | 08e99e29 | Peter Maydell | uint64_t w = bmp[idx++]; |
1440 | 08e99e29 | Peter Maydell | if (sizeof(unsigned long) == 4 && idx < BITS_TO_LONGS(size)) { |
1441 | 08e99e29 | Peter Maydell | w |= ((uint64_t)bmp[idx++]) << 32;
|
1442 | 08e99e29 | Peter Maydell | } |
1443 | 08e99e29 | Peter Maydell | qemu_put_be64(f, w); |
1444 | 08e99e29 | Peter Maydell | } |
1445 | 08e99e29 | Peter Maydell | } |
1446 | 08e99e29 | Peter Maydell | |
1447 | 08e99e29 | Peter Maydell | const VMStateInfo vmstate_info_bitmap = {
|
1448 | 08e99e29 | Peter Maydell | .name = "bitmap",
|
1449 | 08e99e29 | Peter Maydell | .get = get_bitmap, |
1450 | 08e99e29 | Peter Maydell | .put = put_bitmap, |
1451 | 08e99e29 | Peter Maydell | }; |
1452 | 08e99e29 | Peter Maydell | |
1453 | 7685ee6a | Alex Williamson | typedef struct CompatEntry { |
1454 | 7685ee6a | Alex Williamson | char idstr[256]; |
1455 | 7685ee6a | Alex Williamson | int instance_id;
|
1456 | 7685ee6a | Alex Williamson | } CompatEntry; |
1457 | 7685ee6a | Alex Williamson | |
1458 | a672b469 | aliguori | typedef struct SaveStateEntry { |
1459 | 72cf2d4f | Blue Swirl | QTAILQ_ENTRY(SaveStateEntry) entry; |
1460 | a672b469 | aliguori | char idstr[256]; |
1461 | a672b469 | aliguori | int instance_id;
|
1462 | 4d2ffa08 | Jan Kiszka | int alias_id;
|
1463 | a672b469 | aliguori | int version_id;
|
1464 | a672b469 | aliguori | int section_id;
|
1465 | 22ea40f4 | Juan Quintela | SaveVMHandlers *ops; |
1466 | 9ed7d6ae | Juan Quintela | const VMStateDescription *vmsd;
|
1467 | a672b469 | aliguori | void *opaque;
|
1468 | 7685ee6a | Alex Williamson | CompatEntry *compat; |
1469 | 24312968 | Cam Macdonell | int no_migrate;
|
1470 | a7ae8355 | Stefano Stabellini | int is_ram;
|
1471 | a672b469 | aliguori | } SaveStateEntry; |
1472 | a672b469 | aliguori | |
1473 | c163b5ca | lirans@il.ibm.com | |
1474 | 72cf2d4f | Blue Swirl | static QTAILQ_HEAD(savevm_handlers, SaveStateEntry) savevm_handlers =
|
1475 | 72cf2d4f | Blue Swirl | QTAILQ_HEAD_INITIALIZER(savevm_handlers); |
1476 | 9ed7d6ae | Juan Quintela | static int global_section_id; |
1477 | a672b469 | aliguori | |
1478 | 8718e999 | Juan Quintela | static int calculate_new_instance_id(const char *idstr) |
1479 | 8718e999 | Juan Quintela | { |
1480 | 8718e999 | Juan Quintela | SaveStateEntry *se; |
1481 | 8718e999 | Juan Quintela | int instance_id = 0; |
1482 | 8718e999 | Juan Quintela | |
1483 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1484 | 8718e999 | Juan Quintela | if (strcmp(idstr, se->idstr) == 0 |
1485 | 8718e999 | Juan Quintela | && instance_id <= se->instance_id) { |
1486 | 8718e999 | Juan Quintela | instance_id = se->instance_id + 1;
|
1487 | 8718e999 | Juan Quintela | } |
1488 | 8718e999 | Juan Quintela | } |
1489 | 8718e999 | Juan Quintela | return instance_id;
|
1490 | 8718e999 | Juan Quintela | } |
1491 | 8718e999 | Juan Quintela | |
1492 | 7685ee6a | Alex Williamson | static int calculate_compat_instance_id(const char *idstr) |
1493 | 7685ee6a | Alex Williamson | { |
1494 | 7685ee6a | Alex Williamson | SaveStateEntry *se; |
1495 | 7685ee6a | Alex Williamson | int instance_id = 0; |
1496 | 7685ee6a | Alex Williamson | |
1497 | 7685ee6a | Alex Williamson | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1498 | 7685ee6a | Alex Williamson | if (!se->compat)
|
1499 | 7685ee6a | Alex Williamson | continue;
|
1500 | 7685ee6a | Alex Williamson | |
1501 | 7685ee6a | Alex Williamson | if (strcmp(idstr, se->compat->idstr) == 0 |
1502 | 7685ee6a | Alex Williamson | && instance_id <= se->compat->instance_id) { |
1503 | 7685ee6a | Alex Williamson | instance_id = se->compat->instance_id + 1;
|
1504 | 7685ee6a | Alex Williamson | } |
1505 | 7685ee6a | Alex Williamson | } |
1506 | 7685ee6a | Alex Williamson | return instance_id;
|
1507 | 7685ee6a | Alex Williamson | } |
1508 | 7685ee6a | Alex Williamson | |
1509 | a672b469 | aliguori | /* TODO: Individual devices generally have very little idea about the rest
|
1510 | a672b469 | aliguori | of the system, so instance_id should be removed/replaced.
|
1511 | a672b469 | aliguori | Meanwhile pass -1 as instance_id if you do not already have a clearly
|
1512 | a672b469 | aliguori | distinguishing id for all instances of your device class. */
|
1513 | 0be71e32 | Alex Williamson | int register_savevm_live(DeviceState *dev,
|
1514 | 0be71e32 | Alex Williamson | const char *idstr, |
1515 | a672b469 | aliguori | int instance_id,
|
1516 | a672b469 | aliguori | int version_id,
|
1517 | 7908c78d | Juan Quintela | SaveVMHandlers *ops, |
1518 | a672b469 | aliguori | void *opaque)
|
1519 | a672b469 | aliguori | { |
1520 | 8718e999 | Juan Quintela | SaveStateEntry *se; |
1521 | a672b469 | aliguori | |
1522 | 7267c094 | Anthony Liguori | se = g_malloc0(sizeof(SaveStateEntry));
|
1523 | a672b469 | aliguori | se->version_id = version_id; |
1524 | a672b469 | aliguori | se->section_id = global_section_id++; |
1525 | 7908c78d | Juan Quintela | se->ops = ops; |
1526 | a672b469 | aliguori | se->opaque = opaque; |
1527 | 9ed7d6ae | Juan Quintela | se->vmsd = NULL;
|
1528 | 24312968 | Cam Macdonell | se->no_migrate = 0;
|
1529 | a7ae8355 | Stefano Stabellini | /* if this is a live_savem then set is_ram */
|
1530 | 16310a3c | Juan Quintela | if (ops->save_live_setup != NULL) { |
1531 | a7ae8355 | Stefano Stabellini | se->is_ram = 1;
|
1532 | a7ae8355 | Stefano Stabellini | } |
1533 | a672b469 | aliguori | |
1534 | 09e5ab63 | Anthony Liguori | if (dev) {
|
1535 | 09e5ab63 | Anthony Liguori | char *id = qdev_get_dev_path(dev);
|
1536 | 7685ee6a | Alex Williamson | if (id) {
|
1537 | 7685ee6a | Alex Williamson | pstrcpy(se->idstr, sizeof(se->idstr), id);
|
1538 | 7685ee6a | Alex Williamson | pstrcat(se->idstr, sizeof(se->idstr), "/"); |
1539 | 7267c094 | Anthony Liguori | g_free(id); |
1540 | 7685ee6a | Alex Williamson | |
1541 | 7267c094 | Anthony Liguori | se->compat = g_malloc0(sizeof(CompatEntry));
|
1542 | 7685ee6a | Alex Williamson | pstrcpy(se->compat->idstr, sizeof(se->compat->idstr), idstr);
|
1543 | 7685ee6a | Alex Williamson | se->compat->instance_id = instance_id == -1 ?
|
1544 | 7685ee6a | Alex Williamson | calculate_compat_instance_id(idstr) : instance_id; |
1545 | 7685ee6a | Alex Williamson | instance_id = -1;
|
1546 | 7685ee6a | Alex Williamson | } |
1547 | 7685ee6a | Alex Williamson | } |
1548 | 7685ee6a | Alex Williamson | pstrcat(se->idstr, sizeof(se->idstr), idstr);
|
1549 | 7685ee6a | Alex Williamson | |
1550 | 8718e999 | Juan Quintela | if (instance_id == -1) { |
1551 | 7685ee6a | Alex Williamson | se->instance_id = calculate_new_instance_id(se->idstr); |
1552 | 8718e999 | Juan Quintela | } else {
|
1553 | 8718e999 | Juan Quintela | se->instance_id = instance_id; |
1554 | a672b469 | aliguori | } |
1555 | 7685ee6a | Alex Williamson | assert(!se->compat || se->instance_id == 0);
|
1556 | 8718e999 | Juan Quintela | /* add at the end of list */
|
1557 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&savevm_handlers, se, entry); |
1558 | a672b469 | aliguori | return 0; |
1559 | a672b469 | aliguori | } |
1560 | a672b469 | aliguori | |
1561 | 0be71e32 | Alex Williamson | int register_savevm(DeviceState *dev,
|
1562 | 0be71e32 | Alex Williamson | const char *idstr, |
1563 | a672b469 | aliguori | int instance_id,
|
1564 | a672b469 | aliguori | int version_id,
|
1565 | a672b469 | aliguori | SaveStateHandler *save_state, |
1566 | a672b469 | aliguori | LoadStateHandler *load_state, |
1567 | a672b469 | aliguori | void *opaque)
|
1568 | a672b469 | aliguori | { |
1569 | 7908c78d | Juan Quintela | SaveVMHandlers *ops = g_malloc0(sizeof(SaveVMHandlers));
|
1570 | 7908c78d | Juan Quintela | ops->save_state = save_state; |
1571 | 7908c78d | Juan Quintela | ops->load_state = load_state; |
1572 | 0be71e32 | Alex Williamson | return register_savevm_live(dev, idstr, instance_id, version_id,
|
1573 | 7908c78d | Juan Quintela | ops, opaque); |
1574 | a672b469 | aliguori | } |
1575 | a672b469 | aliguori | |
1576 | 0be71e32 | Alex Williamson | void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque) |
1577 | 41bd13af | aliguori | { |
1578 | 8718e999 | Juan Quintela | SaveStateEntry *se, *new_se; |
1579 | 7685ee6a | Alex Williamson | char id[256] = ""; |
1580 | 7685ee6a | Alex Williamson | |
1581 | 09e5ab63 | Anthony Liguori | if (dev) {
|
1582 | 09e5ab63 | Anthony Liguori | char *path = qdev_get_dev_path(dev);
|
1583 | 7685ee6a | Alex Williamson | if (path) {
|
1584 | 7685ee6a | Alex Williamson | pstrcpy(id, sizeof(id), path);
|
1585 | 7685ee6a | Alex Williamson | pstrcat(id, sizeof(id), "/"); |
1586 | 7267c094 | Anthony Liguori | g_free(path); |
1587 | 7685ee6a | Alex Williamson | } |
1588 | 7685ee6a | Alex Williamson | } |
1589 | 7685ee6a | Alex Williamson | pstrcat(id, sizeof(id), idstr);
|
1590 | 41bd13af | aliguori | |
1591 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(se, &savevm_handlers, entry, new_se) { |
1592 | 7685ee6a | Alex Williamson | if (strcmp(se->idstr, id) == 0 && se->opaque == opaque) { |
1593 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&savevm_handlers, se, entry); |
1594 | 69e58af9 | Alex Williamson | if (se->compat) {
|
1595 | 7267c094 | Anthony Liguori | g_free(se->compat); |
1596 | 69e58af9 | Alex Williamson | } |
1597 | 22ea40f4 | Juan Quintela | g_free(se->ops); |
1598 | 7267c094 | Anthony Liguori | g_free(se); |
1599 | 41bd13af | aliguori | } |
1600 | 41bd13af | aliguori | } |
1601 | 41bd13af | aliguori | } |
1602 | 41bd13af | aliguori | |
1603 | 0be71e32 | Alex Williamson | int vmstate_register_with_alias_id(DeviceState *dev, int instance_id, |
1604 | 4d2ffa08 | Jan Kiszka | const VMStateDescription *vmsd,
|
1605 | 4d2ffa08 | Jan Kiszka | void *opaque, int alias_id, |
1606 | 4d2ffa08 | Jan Kiszka | int required_for_version)
|
1607 | 9ed7d6ae | Juan Quintela | { |
1608 | 8718e999 | Juan Quintela | SaveStateEntry *se; |
1609 | 9ed7d6ae | Juan Quintela | |
1610 | 4d2ffa08 | Jan Kiszka | /* If this triggers, alias support can be dropped for the vmsd. */
|
1611 | 4d2ffa08 | Jan Kiszka | assert(alias_id == -1 || required_for_version >= vmsd->minimum_version_id);
|
1612 | 4d2ffa08 | Jan Kiszka | |
1613 | 7267c094 | Anthony Liguori | se = g_malloc0(sizeof(SaveStateEntry));
|
1614 | 9ed7d6ae | Juan Quintela | se->version_id = vmsd->version_id; |
1615 | 9ed7d6ae | Juan Quintela | se->section_id = global_section_id++; |
1616 | 9ed7d6ae | Juan Quintela | se->opaque = opaque; |
1617 | 9ed7d6ae | Juan Quintela | se->vmsd = vmsd; |
1618 | 4d2ffa08 | Jan Kiszka | se->alias_id = alias_id; |
1619 | 2837c8ea | Gerd Hoffmann | se->no_migrate = vmsd->unmigratable; |
1620 | 9ed7d6ae | Juan Quintela | |
1621 | 09e5ab63 | Anthony Liguori | if (dev) {
|
1622 | 09e5ab63 | Anthony Liguori | char *id = qdev_get_dev_path(dev);
|
1623 | 7685ee6a | Alex Williamson | if (id) {
|
1624 | 7685ee6a | Alex Williamson | pstrcpy(se->idstr, sizeof(se->idstr), id);
|
1625 | 7685ee6a | Alex Williamson | pstrcat(se->idstr, sizeof(se->idstr), "/"); |
1626 | 7267c094 | Anthony Liguori | g_free(id); |
1627 | 7685ee6a | Alex Williamson | |
1628 | 7267c094 | Anthony Liguori | se->compat = g_malloc0(sizeof(CompatEntry));
|
1629 | 7685ee6a | Alex Williamson | pstrcpy(se->compat->idstr, sizeof(se->compat->idstr), vmsd->name);
|
1630 | 7685ee6a | Alex Williamson | se->compat->instance_id = instance_id == -1 ?
|
1631 | 7685ee6a | Alex Williamson | calculate_compat_instance_id(vmsd->name) : instance_id; |
1632 | 7685ee6a | Alex Williamson | instance_id = -1;
|
1633 | 7685ee6a | Alex Williamson | } |
1634 | 7685ee6a | Alex Williamson | } |
1635 | 7685ee6a | Alex Williamson | pstrcat(se->idstr, sizeof(se->idstr), vmsd->name);
|
1636 | 7685ee6a | Alex Williamson | |
1637 | 8718e999 | Juan Quintela | if (instance_id == -1) { |
1638 | 7685ee6a | Alex Williamson | se->instance_id = calculate_new_instance_id(se->idstr); |
1639 | 8718e999 | Juan Quintela | } else {
|
1640 | 8718e999 | Juan Quintela | se->instance_id = instance_id; |
1641 | 9ed7d6ae | Juan Quintela | } |
1642 | 7685ee6a | Alex Williamson | assert(!se->compat || se->instance_id == 0);
|
1643 | 8718e999 | Juan Quintela | /* add at the end of list */
|
1644 | 72cf2d4f | Blue Swirl | QTAILQ_INSERT_TAIL(&savevm_handlers, se, entry); |
1645 | 9ed7d6ae | Juan Quintela | return 0; |
1646 | 9ed7d6ae | Juan Quintela | } |
1647 | 9ed7d6ae | Juan Quintela | |
1648 | 0be71e32 | Alex Williamson | void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd, |
1649 | 0be71e32 | Alex Williamson | void *opaque)
|
1650 | 9ed7d6ae | Juan Quintela | { |
1651 | 1eb7538b | Juan Quintela | SaveStateEntry *se, *new_se; |
1652 | 1eb7538b | Juan Quintela | |
1653 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH_SAFE(se, &savevm_handlers, entry, new_se) { |
1654 | 1eb7538b | Juan Quintela | if (se->vmsd == vmsd && se->opaque == opaque) {
|
1655 | 72cf2d4f | Blue Swirl | QTAILQ_REMOVE(&savevm_handlers, se, entry); |
1656 | 69e58af9 | Alex Williamson | if (se->compat) {
|
1657 | 7267c094 | Anthony Liguori | g_free(se->compat); |
1658 | 69e58af9 | Alex Williamson | } |
1659 | 7267c094 | Anthony Liguori | g_free(se); |
1660 | 1eb7538b | Juan Quintela | } |
1661 | 1eb7538b | Juan Quintela | } |
1662 | 9ed7d6ae | Juan Quintela | } |
1663 | 9ed7d6ae | Juan Quintela | |
1664 | 811814bd | Juan Quintela | static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, |
1665 | 811814bd | Juan Quintela | void *opaque);
|
1666 | 811814bd | Juan Quintela | static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd, |
1667 | 811814bd | Juan Quintela | void *opaque);
|
1668 | 811814bd | Juan Quintela | |
1669 | 9ed7d6ae | Juan Quintela | int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, |
1670 | 9ed7d6ae | Juan Quintela | void *opaque, int version_id) |
1671 | 9ed7d6ae | Juan Quintela | { |
1672 | 9ed7d6ae | Juan Quintela | VMStateField *field = vmsd->fields; |
1673 | 811814bd | Juan Quintela | int ret;
|
1674 | 9ed7d6ae | Juan Quintela | |
1675 | 9ed7d6ae | Juan Quintela | if (version_id > vmsd->version_id) {
|
1676 | 9ed7d6ae | Juan Quintela | return -EINVAL;
|
1677 | 9ed7d6ae | Juan Quintela | } |
1678 | 9ed7d6ae | Juan Quintela | if (version_id < vmsd->minimum_version_id_old) {
|
1679 | 9ed7d6ae | Juan Quintela | return -EINVAL;
|
1680 | 9ed7d6ae | Juan Quintela | } |
1681 | 9ed7d6ae | Juan Quintela | if (version_id < vmsd->minimum_version_id) {
|
1682 | 9ed7d6ae | Juan Quintela | return vmsd->load_state_old(f, opaque, version_id);
|
1683 | 9ed7d6ae | Juan Quintela | } |
1684 | fd4d52de | Juan Quintela | if (vmsd->pre_load) {
|
1685 | fd4d52de | Juan Quintela | int ret = vmsd->pre_load(opaque);
|
1686 | fd4d52de | Juan Quintela | if (ret)
|
1687 | fd4d52de | Juan Quintela | return ret;
|
1688 | fd4d52de | Juan Quintela | } |
1689 | 9ed7d6ae | Juan Quintela | while(field->name) {
|
1690 | f11f6a5f | Juan Quintela | if ((field->field_exists &&
|
1691 | f11f6a5f | Juan Quintela | field->field_exists(opaque, version_id)) || |
1692 | f11f6a5f | Juan Quintela | (!field->field_exists && |
1693 | f11f6a5f | Juan Quintela | field->version_id <= version_id)) { |
1694 | f752a6aa | Juan Quintela | void *base_addr = opaque + field->offset;
|
1695 | 811814bd | Juan Quintela | int i, n_elems = 1; |
1696 | e61a1e0a | Juan Quintela | int size = field->size;
|
1697 | 9ed7d6ae | Juan Quintela | |
1698 | e61a1e0a | Juan Quintela | if (field->flags & VMS_VBUFFER) {
|
1699 | e61a1e0a | Juan Quintela | size = *(int32_t *)(opaque+field->size_offset); |
1700 | 33599e2a | Juan Quintela | if (field->flags & VMS_MULTIPLY) {
|
1701 | 33599e2a | Juan Quintela | size *= field->size; |
1702 | 33599e2a | Juan Quintela | } |
1703 | e61a1e0a | Juan Quintela | } |
1704 | f752a6aa | Juan Quintela | if (field->flags & VMS_ARRAY) {
|
1705 | f752a6aa | Juan Quintela | n_elems = field->num; |
1706 | d6698281 | Juan Quintela | } else if (field->flags & VMS_VARRAY_INT32) { |
1707 | d6698281 | Juan Quintela | n_elems = *(int32_t *)(opaque+field->num_offset); |
1708 | a624b086 | Juan Quintela | } else if (field->flags & VMS_VARRAY_UINT32) { |
1709 | a624b086 | Juan Quintela | n_elems = *(uint32_t *)(opaque+field->num_offset); |
1710 | bdb4941d | Juan Quintela | } else if (field->flags & VMS_VARRAY_UINT16) { |
1711 | bdb4941d | Juan Quintela | n_elems = *(uint16_t *)(opaque+field->num_offset); |
1712 | 82fa39b7 | Juan Quintela | } else if (field->flags & VMS_VARRAY_UINT8) { |
1713 | 82fa39b7 | Juan Quintela | n_elems = *(uint8_t *)(opaque+field->num_offset); |
1714 | f752a6aa | Juan Quintela | } |
1715 | dde0463b | Juan Quintela | if (field->flags & VMS_POINTER) {
|
1716 | e61a1e0a | Juan Quintela | base_addr = *(void **)base_addr + field->start;
|
1717 | dde0463b | Juan Quintela | } |
1718 | f752a6aa | Juan Quintela | for (i = 0; i < n_elems; i++) { |
1719 | e61a1e0a | Juan Quintela | void *addr = base_addr + size * i;
|
1720 | ec245e21 | Juan Quintela | |
1721 | 19df438b | Juan Quintela | if (field->flags & VMS_ARRAY_OF_POINTER) {
|
1722 | 19df438b | Juan Quintela | addr = *(void **)addr;
|
1723 | 19df438b | Juan Quintela | } |
1724 | ec245e21 | Juan Quintela | if (field->flags & VMS_STRUCT) {
|
1725 | fa3aad24 | Juan Quintela | ret = vmstate_load_state(f, field->vmsd, addr, field->vmsd->version_id); |
1726 | ec245e21 | Juan Quintela | } else {
|
1727 | e61a1e0a | Juan Quintela | ret = field->info->get(f, addr, size); |
1728 | ec245e21 | Juan Quintela | |
1729 | ec245e21 | Juan Quintela | } |
1730 | f752a6aa | Juan Quintela | if (ret < 0) { |
1731 | f752a6aa | Juan Quintela | return ret;
|
1732 | f752a6aa | Juan Quintela | } |
1733 | 9ed7d6ae | Juan Quintela | } |
1734 | 9ed7d6ae | Juan Quintela | } |
1735 | 9ed7d6ae | Juan Quintela | field++; |
1736 | 9ed7d6ae | Juan Quintela | } |
1737 | 811814bd | Juan Quintela | ret = vmstate_subsection_load(f, vmsd, opaque); |
1738 | 811814bd | Juan Quintela | if (ret != 0) { |
1739 | 811814bd | Juan Quintela | return ret;
|
1740 | 811814bd | Juan Quintela | } |
1741 | 752ff2fa | Juan Quintela | if (vmsd->post_load) {
|
1742 | e59fb374 | Juan Quintela | return vmsd->post_load(opaque, version_id);
|
1743 | 752ff2fa | Juan Quintela | } |
1744 | 9ed7d6ae | Juan Quintela | return 0; |
1745 | 9ed7d6ae | Juan Quintela | } |
1746 | 9ed7d6ae | Juan Quintela | |
1747 | 9ed7d6ae | Juan Quintela | void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, |
1748 | 84e2e3eb | Juan Quintela | void *opaque)
|
1749 | 9ed7d6ae | Juan Quintela | { |
1750 | 9ed7d6ae | Juan Quintela | VMStateField *field = vmsd->fields; |
1751 | 9ed7d6ae | Juan Quintela | |
1752 | 8fb0791d | Juan Quintela | if (vmsd->pre_save) {
|
1753 | 8fb0791d | Juan Quintela | vmsd->pre_save(opaque); |
1754 | 8fb0791d | Juan Quintela | } |
1755 | 9ed7d6ae | Juan Quintela | while(field->name) {
|
1756 | f11f6a5f | Juan Quintela | if (!field->field_exists ||
|
1757 | f11f6a5f | Juan Quintela | field->field_exists(opaque, vmsd->version_id)) { |
1758 | f11f6a5f | Juan Quintela | void *base_addr = opaque + field->offset;
|
1759 | f11f6a5f | Juan Quintela | int i, n_elems = 1; |
1760 | e61a1e0a | Juan Quintela | int size = field->size;
|
1761 | dde0463b | Juan Quintela | |
1762 | e61a1e0a | Juan Quintela | if (field->flags & VMS_VBUFFER) {
|
1763 | e61a1e0a | Juan Quintela | size = *(int32_t *)(opaque+field->size_offset); |
1764 | 33599e2a | Juan Quintela | if (field->flags & VMS_MULTIPLY) {
|
1765 | 33599e2a | Juan Quintela | size *= field->size; |
1766 | 33599e2a | Juan Quintela | } |
1767 | e61a1e0a | Juan Quintela | } |
1768 | f11f6a5f | Juan Quintela | if (field->flags & VMS_ARRAY) {
|
1769 | f11f6a5f | Juan Quintela | n_elems = field->num; |
1770 | d6698281 | Juan Quintela | } else if (field->flags & VMS_VARRAY_INT32) { |
1771 | d6698281 | Juan Quintela | n_elems = *(int32_t *)(opaque+field->num_offset); |
1772 | 1329d189 | Amos Kong | } else if (field->flags & VMS_VARRAY_UINT32) { |
1773 | 1329d189 | Amos Kong | n_elems = *(uint32_t *)(opaque+field->num_offset); |
1774 | bdb4941d | Juan Quintela | } else if (field->flags & VMS_VARRAY_UINT16) { |
1775 | bdb4941d | Juan Quintela | n_elems = *(uint16_t *)(opaque+field->num_offset); |
1776 | b784421c | Juan Quintela | } else if (field->flags & VMS_VARRAY_UINT8) { |
1777 | b784421c | Juan Quintela | n_elems = *(uint8_t *)(opaque+field->num_offset); |
1778 | f11f6a5f | Juan Quintela | } |
1779 | f11f6a5f | Juan Quintela | if (field->flags & VMS_POINTER) {
|
1780 | e61a1e0a | Juan Quintela | base_addr = *(void **)base_addr + field->start;
|
1781 | f11f6a5f | Juan Quintela | } |
1782 | f11f6a5f | Juan Quintela | for (i = 0; i < n_elems; i++) { |
1783 | e61a1e0a | Juan Quintela | void *addr = base_addr + size * i;
|
1784 | ec245e21 | Juan Quintela | |
1785 | 8595387e | Juan Quintela | if (field->flags & VMS_ARRAY_OF_POINTER) {
|
1786 | 8595387e | Juan Quintela | addr = *(void **)addr;
|
1787 | 8595387e | Juan Quintela | } |
1788 | f11f6a5f | Juan Quintela | if (field->flags & VMS_STRUCT) {
|
1789 | f11f6a5f | Juan Quintela | vmstate_save_state(f, field->vmsd, addr); |
1790 | f11f6a5f | Juan Quintela | } else {
|
1791 | e61a1e0a | Juan Quintela | field->info->put(f, addr, size); |
1792 | f11f6a5f | Juan Quintela | } |
1793 | ec245e21 | Juan Quintela | } |
1794 | dde0463b | Juan Quintela | } |
1795 | 9ed7d6ae | Juan Quintela | field++; |
1796 | 9ed7d6ae | Juan Quintela | } |
1797 | 811814bd | Juan Quintela | vmstate_subsection_save(f, vmsd, opaque); |
1798 | 9ed7d6ae | Juan Quintela | } |
1799 | 9ed7d6ae | Juan Quintela | |
1800 | 4082be4d | Juan Quintela | static int vmstate_load(QEMUFile *f, SaveStateEntry *se, int version_id) |
1801 | 4082be4d | Juan Quintela | { |
1802 | 9ed7d6ae | Juan Quintela | if (!se->vmsd) { /* Old style */ |
1803 | 22ea40f4 | Juan Quintela | return se->ops->load_state(f, se->opaque, version_id);
|
1804 | 9ed7d6ae | Juan Quintela | } |
1805 | 9ed7d6ae | Juan Quintela | return vmstate_load_state(f, se->vmsd, se->opaque, version_id);
|
1806 | 4082be4d | Juan Quintela | } |
1807 | 4082be4d | Juan Quintela | |
1808 | dc912121 | Alex Williamson | static void vmstate_save(QEMUFile *f, SaveStateEntry *se) |
1809 | 4082be4d | Juan Quintela | { |
1810 | 9ed7d6ae | Juan Quintela | if (!se->vmsd) { /* Old style */ |
1811 | 22ea40f4 | Juan Quintela | se->ops->save_state(f, se->opaque); |
1812 | dc912121 | Alex Williamson | return;
|
1813 | 9ed7d6ae | Juan Quintela | } |
1814 | 9ed7d6ae | Juan Quintela | vmstate_save_state(f,se->vmsd, se->opaque); |
1815 | 4082be4d | Juan Quintela | } |
1816 | 4082be4d | Juan Quintela | |
1817 | a672b469 | aliguori | #define QEMU_VM_FILE_MAGIC 0x5145564d |
1818 | a672b469 | aliguori | #define QEMU_VM_FILE_VERSION_COMPAT 0x00000002 |
1819 | a672b469 | aliguori | #define QEMU_VM_FILE_VERSION 0x00000003 |
1820 | a672b469 | aliguori | |
1821 | a672b469 | aliguori | #define QEMU_VM_EOF 0x00 |
1822 | a672b469 | aliguori | #define QEMU_VM_SECTION_START 0x01 |
1823 | a672b469 | aliguori | #define QEMU_VM_SECTION_PART 0x02 |
1824 | a672b469 | aliguori | #define QEMU_VM_SECTION_END 0x03 |
1825 | a672b469 | aliguori | #define QEMU_VM_SECTION_FULL 0x04 |
1826 | 811814bd | Juan Quintela | #define QEMU_VM_SUBSECTION 0x05 |
1827 | a672b469 | aliguori | |
1828 | e1c37d0e | Luiz Capitulino | bool qemu_savevm_state_blocked(Error **errp)
|
1829 | dc912121 | Alex Williamson | { |
1830 | dc912121 | Alex Williamson | SaveStateEntry *se; |
1831 | dc912121 | Alex Williamson | |
1832 | dc912121 | Alex Williamson | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1833 | dc912121 | Alex Williamson | if (se->no_migrate) {
|
1834 | e1c37d0e | Luiz Capitulino | error_set(errp, QERR_MIGRATION_NOT_SUPPORTED, se->idstr); |
1835 | dc912121 | Alex Williamson | return true; |
1836 | dc912121 | Alex Williamson | } |
1837 | dc912121 | Alex Williamson | } |
1838 | dc912121 | Alex Williamson | return false; |
1839 | dc912121 | Alex Williamson | } |
1840 | dc912121 | Alex Williamson | |
1841 | 47c8c17a | Paolo Bonzini | void qemu_savevm_state_begin(QEMUFile *f,
|
1842 | 47c8c17a | Paolo Bonzini | const MigrationParams *params)
|
1843 | a672b469 | aliguori | { |
1844 | a672b469 | aliguori | SaveStateEntry *se; |
1845 | 39346385 | Juan Quintela | int ret;
|
1846 | a672b469 | aliguori | |
1847 | c163b5ca | lirans@il.ibm.com | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1848 | 22ea40f4 | Juan Quintela | if (!se->ops || !se->ops->set_params) {
|
1849 | c163b5ca | lirans@il.ibm.com | continue;
|
1850 | 6607ae23 | Isaku Yamahata | } |
1851 | 22ea40f4 | Juan Quintela | se->ops->set_params(params, se->opaque); |
1852 | c163b5ca | lirans@il.ibm.com | } |
1853 | c163b5ca | lirans@il.ibm.com | |
1854 | a672b469 | aliguori | qemu_put_be32(f, QEMU_VM_FILE_MAGIC); |
1855 | a672b469 | aliguori | qemu_put_be32(f, QEMU_VM_FILE_VERSION); |
1856 | a672b469 | aliguori | |
1857 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1858 | a672b469 | aliguori | int len;
|
1859 | a672b469 | aliguori | |
1860 | d1315aac | Juan Quintela | if (!se->ops || !se->ops->save_live_setup) {
|
1861 | a672b469 | aliguori | continue;
|
1862 | 22ea40f4 | Juan Quintela | } |
1863 | 6bd68781 | Juan Quintela | if (se->ops && se->ops->is_active) {
|
1864 | 6bd68781 | Juan Quintela | if (!se->ops->is_active(se->opaque)) {
|
1865 | 6bd68781 | Juan Quintela | continue;
|
1866 | 6bd68781 | Juan Quintela | } |
1867 | 6bd68781 | Juan Quintela | } |
1868 | a672b469 | aliguori | /* Section type */
|
1869 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_SECTION_START); |
1870 | a672b469 | aliguori | qemu_put_be32(f, se->section_id); |
1871 | a672b469 | aliguori | |
1872 | a672b469 | aliguori | /* ID string */
|
1873 | a672b469 | aliguori | len = strlen(se->idstr); |
1874 | a672b469 | aliguori | qemu_put_byte(f, len); |
1875 | a672b469 | aliguori | qemu_put_buffer(f, (uint8_t *)se->idstr, len); |
1876 | a672b469 | aliguori | |
1877 | a672b469 | aliguori | qemu_put_be32(f, se->instance_id); |
1878 | a672b469 | aliguori | qemu_put_be32(f, se->version_id); |
1879 | a672b469 | aliguori | |
1880 | d1315aac | Juan Quintela | ret = se->ops->save_live_setup(f, se->opaque); |
1881 | 2975725f | Juan Quintela | if (ret < 0) { |
1882 | 47c8c17a | Paolo Bonzini | qemu_file_set_error(f, ret); |
1883 | 47c8c17a | Paolo Bonzini | break;
|
1884 | 2975725f | Juan Quintela | } |
1885 | a672b469 | aliguori | } |
1886 | a672b469 | aliguori | } |
1887 | a672b469 | aliguori | |
1888 | 39346385 | Juan Quintela | /*
|
1889 | 07f35073 | Dong Xu Wang | * this function has three return values:
|
1890 | 39346385 | Juan Quintela | * negative: there was one error, and we have -errno.
|
1891 | 39346385 | Juan Quintela | * 0 : We haven't finished, caller have to go again
|
1892 | 39346385 | Juan Quintela | * 1 : We have finished, we can go to complete phase
|
1893 | 39346385 | Juan Quintela | */
|
1894 | 539de124 | Luiz Capitulino | int qemu_savevm_state_iterate(QEMUFile *f)
|
1895 | a672b469 | aliguori | { |
1896 | a672b469 | aliguori | SaveStateEntry *se; |
1897 | a672b469 | aliguori | int ret = 1; |
1898 | a672b469 | aliguori | |
1899 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1900 | 16310a3c | Juan Quintela | if (!se->ops || !se->ops->save_live_iterate) {
|
1901 | a672b469 | aliguori | continue;
|
1902 | 22ea40f4 | Juan Quintela | } |
1903 | 6bd68781 | Juan Quintela | if (se->ops && se->ops->is_active) {
|
1904 | 6bd68781 | Juan Quintela | if (!se->ops->is_active(se->opaque)) {
|
1905 | 6bd68781 | Juan Quintela | continue;
|
1906 | 6bd68781 | Juan Quintela | } |
1907 | 6bd68781 | Juan Quintela | } |
1908 | aac844ed | Juan Quintela | if (qemu_file_rate_limit(f)) {
|
1909 | aac844ed | Juan Quintela | return 0; |
1910 | aac844ed | Juan Quintela | } |
1911 | 517a13c9 | Juan Quintela | trace_savevm_section_start(); |
1912 | a672b469 | aliguori | /* Section type */
|
1913 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_SECTION_PART); |
1914 | a672b469 | aliguori | qemu_put_be32(f, se->section_id); |
1915 | a672b469 | aliguori | |
1916 | 16310a3c | Juan Quintela | ret = se->ops->save_live_iterate(f, se->opaque); |
1917 | 517a13c9 | Juan Quintela | trace_savevm_section_end(se->section_id); |
1918 | 517a13c9 | Juan Quintela | |
1919 | 47c8c17a | Paolo Bonzini | if (ret < 0) { |
1920 | 47c8c17a | Paolo Bonzini | qemu_file_set_error(f, ret); |
1921 | 47c8c17a | Paolo Bonzini | } |
1922 | 2975725f | Juan Quintela | if (ret <= 0) { |
1923 | 90697be8 | Jan Kiszka | /* Do not proceed to the next vmstate before this one reported
|
1924 | 90697be8 | Jan Kiszka | completion of the current stage. This serializes the migration
|
1925 | 90697be8 | Jan Kiszka | and reduces the probability that a faster changing state is
|
1926 | 90697be8 | Jan Kiszka | synchronized over and over again. */
|
1927 | 90697be8 | Jan Kiszka | break;
|
1928 | 90697be8 | Jan Kiszka | } |
1929 | a672b469 | aliguori | } |
1930 | 39346385 | Juan Quintela | return ret;
|
1931 | a672b469 | aliguori | } |
1932 | a672b469 | aliguori | |
1933 | 47c8c17a | Paolo Bonzini | void qemu_savevm_state_complete(QEMUFile *f)
|
1934 | a672b469 | aliguori | { |
1935 | a672b469 | aliguori | SaveStateEntry *se; |
1936 | 2975725f | Juan Quintela | int ret;
|
1937 | a672b469 | aliguori | |
1938 | ea375f9a | Jan Kiszka | cpu_synchronize_all_states(); |
1939 | ea375f9a | Jan Kiszka | |
1940 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1941 | 16310a3c | Juan Quintela | if (!se->ops || !se->ops->save_live_complete) {
|
1942 | a672b469 | aliguori | continue;
|
1943 | 22ea40f4 | Juan Quintela | } |
1944 | 6bd68781 | Juan Quintela | if (se->ops && se->ops->is_active) {
|
1945 | 6bd68781 | Juan Quintela | if (!se->ops->is_active(se->opaque)) {
|
1946 | 6bd68781 | Juan Quintela | continue;
|
1947 | 6bd68781 | Juan Quintela | } |
1948 | 6bd68781 | Juan Quintela | } |
1949 | 517a13c9 | Juan Quintela | trace_savevm_section_start(); |
1950 | a672b469 | aliguori | /* Section type */
|
1951 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_SECTION_END); |
1952 | a672b469 | aliguori | qemu_put_be32(f, se->section_id); |
1953 | a672b469 | aliguori | |
1954 | 16310a3c | Juan Quintela | ret = se->ops->save_live_complete(f, se->opaque); |
1955 | 517a13c9 | Juan Quintela | trace_savevm_section_end(se->section_id); |
1956 | 2975725f | Juan Quintela | if (ret < 0) { |
1957 | 47c8c17a | Paolo Bonzini | qemu_file_set_error(f, ret); |
1958 | 47c8c17a | Paolo Bonzini | return;
|
1959 | 2975725f | Juan Quintela | } |
1960 | a672b469 | aliguori | } |
1961 | a672b469 | aliguori | |
1962 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1963 | a672b469 | aliguori | int len;
|
1964 | a672b469 | aliguori | |
1965 | 22ea40f4 | Juan Quintela | if ((!se->ops || !se->ops->save_state) && !se->vmsd) {
|
1966 | a672b469 | aliguori | continue;
|
1967 | 22ea40f4 | Juan Quintela | } |
1968 | 517a13c9 | Juan Quintela | trace_savevm_section_start(); |
1969 | a672b469 | aliguori | /* Section type */
|
1970 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_SECTION_FULL); |
1971 | a672b469 | aliguori | qemu_put_be32(f, se->section_id); |
1972 | a672b469 | aliguori | |
1973 | a672b469 | aliguori | /* ID string */
|
1974 | a672b469 | aliguori | len = strlen(se->idstr); |
1975 | a672b469 | aliguori | qemu_put_byte(f, len); |
1976 | a672b469 | aliguori | qemu_put_buffer(f, (uint8_t *)se->idstr, len); |
1977 | a672b469 | aliguori | |
1978 | a672b469 | aliguori | qemu_put_be32(f, se->instance_id); |
1979 | a672b469 | aliguori | qemu_put_be32(f, se->version_id); |
1980 | a672b469 | aliguori | |
1981 | dc912121 | Alex Williamson | vmstate_save(f, se); |
1982 | 517a13c9 | Juan Quintela | trace_savevm_section_end(se->section_id); |
1983 | a672b469 | aliguori | } |
1984 | a672b469 | aliguori | |
1985 | a672b469 | aliguori | qemu_put_byte(f, QEMU_VM_EOF); |
1986 | edaae611 | Paolo Bonzini | qemu_fflush(f); |
1987 | a672b469 | aliguori | } |
1988 | a672b469 | aliguori | |
1989 | e4ed1541 | Juan Quintela | uint64_t qemu_savevm_state_pending(QEMUFile *f, uint64_t max_size) |
1990 | e4ed1541 | Juan Quintela | { |
1991 | e4ed1541 | Juan Quintela | SaveStateEntry *se; |
1992 | e4ed1541 | Juan Quintela | uint64_t ret = 0;
|
1993 | e4ed1541 | Juan Quintela | |
1994 | e4ed1541 | Juan Quintela | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
1995 | e4ed1541 | Juan Quintela | if (!se->ops || !se->ops->save_live_pending) {
|
1996 | e4ed1541 | Juan Quintela | continue;
|
1997 | e4ed1541 | Juan Quintela | } |
1998 | e4ed1541 | Juan Quintela | if (se->ops && se->ops->is_active) {
|
1999 | e4ed1541 | Juan Quintela | if (!se->ops->is_active(se->opaque)) {
|
2000 | e4ed1541 | Juan Quintela | continue;
|
2001 | e4ed1541 | Juan Quintela | } |
2002 | e4ed1541 | Juan Quintela | } |
2003 | e4ed1541 | Juan Quintela | ret += se->ops->save_live_pending(f, se->opaque, max_size); |
2004 | e4ed1541 | Juan Quintela | } |
2005 | e4ed1541 | Juan Quintela | return ret;
|
2006 | e4ed1541 | Juan Quintela | } |
2007 | e4ed1541 | Juan Quintela | |
2008 | 6522773f | Juan Quintela | void qemu_savevm_state_cancel(void) |
2009 | 4ec7fcc7 | Jan Kiszka | { |
2010 | 4ec7fcc7 | Jan Kiszka | SaveStateEntry *se; |
2011 | 4ec7fcc7 | Jan Kiszka | |
2012 | 4ec7fcc7 | Jan Kiszka | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
2013 | 9b5bfab0 | Juan Quintela | if (se->ops && se->ops->cancel) {
|
2014 | 9b5bfab0 | Juan Quintela | se->ops->cancel(se->opaque); |
2015 | 4ec7fcc7 | Jan Kiszka | } |
2016 | 4ec7fcc7 | Jan Kiszka | } |
2017 | 4ec7fcc7 | Jan Kiszka | } |
2018 | 4ec7fcc7 | Jan Kiszka | |
2019 | e1c37d0e | Luiz Capitulino | static int qemu_savevm_state(QEMUFile *f) |
2020 | a672b469 | aliguori | { |
2021 | a672b469 | aliguori | int ret;
|
2022 | 6607ae23 | Isaku Yamahata | MigrationParams params = { |
2023 | 6607ae23 | Isaku Yamahata | .blk = 0,
|
2024 | 6607ae23 | Isaku Yamahata | .shared = 0
|
2025 | 6607ae23 | Isaku Yamahata | }; |
2026 | a672b469 | aliguori | |
2027 | e1c37d0e | Luiz Capitulino | if (qemu_savevm_state_blocked(NULL)) { |
2028 | 04943eba | Paolo Bonzini | return -EINVAL;
|
2029 | dc912121 | Alex Williamson | } |
2030 | dc912121 | Alex Williamson | |
2031 | 9b095037 | Paolo Bonzini | qemu_mutex_unlock_iothread(); |
2032 | 47c8c17a | Paolo Bonzini | qemu_savevm_state_begin(f, ¶ms); |
2033 | 9b095037 | Paolo Bonzini | qemu_mutex_lock_iothread(); |
2034 | 9b095037 | Paolo Bonzini | |
2035 | 47c8c17a | Paolo Bonzini | while (qemu_file_get_error(f) == 0) { |
2036 | 47c8c17a | Paolo Bonzini | if (qemu_savevm_state_iterate(f) > 0) { |
2037 | 47c8c17a | Paolo Bonzini | break;
|
2038 | 47c8c17a | Paolo Bonzini | } |
2039 | 47c8c17a | Paolo Bonzini | } |
2040 | a672b469 | aliguori | |
2041 | 47c8c17a | Paolo Bonzini | ret = qemu_file_get_error(f); |
2042 | 39346385 | Juan Quintela | if (ret == 0) { |
2043 | 47c8c17a | Paolo Bonzini | qemu_savevm_state_complete(f); |
2044 | 624b9cc2 | Juan Quintela | ret = qemu_file_get_error(f); |
2045 | 39346385 | Juan Quintela | } |
2046 | 04943eba | Paolo Bonzini | if (ret != 0) { |
2047 | 04943eba | Paolo Bonzini | qemu_savevm_state_cancel(); |
2048 | 04943eba | Paolo Bonzini | } |
2049 | a672b469 | aliguori | return ret;
|
2050 | a672b469 | aliguori | } |
2051 | a672b469 | aliguori | |
2052 | a7ae8355 | Stefano Stabellini | static int qemu_save_device_state(QEMUFile *f) |
2053 | a7ae8355 | Stefano Stabellini | { |
2054 | a7ae8355 | Stefano Stabellini | SaveStateEntry *se; |
2055 | a7ae8355 | Stefano Stabellini | |
2056 | a7ae8355 | Stefano Stabellini | qemu_put_be32(f, QEMU_VM_FILE_MAGIC); |
2057 | a7ae8355 | Stefano Stabellini | qemu_put_be32(f, QEMU_VM_FILE_VERSION); |
2058 | a7ae8355 | Stefano Stabellini | |
2059 | a7ae8355 | Stefano Stabellini | cpu_synchronize_all_states(); |
2060 | a7ae8355 | Stefano Stabellini | |
2061 | a7ae8355 | Stefano Stabellini | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
2062 | a7ae8355 | Stefano Stabellini | int len;
|
2063 | a7ae8355 | Stefano Stabellini | |
2064 | a7ae8355 | Stefano Stabellini | if (se->is_ram) {
|
2065 | a7ae8355 | Stefano Stabellini | continue;
|
2066 | a7ae8355 | Stefano Stabellini | } |
2067 | 22ea40f4 | Juan Quintela | if ((!se->ops || !se->ops->save_state) && !se->vmsd) {
|
2068 | a7ae8355 | Stefano Stabellini | continue;
|
2069 | a7ae8355 | Stefano Stabellini | } |
2070 | a7ae8355 | Stefano Stabellini | |
2071 | a7ae8355 | Stefano Stabellini | /* Section type */
|
2072 | a7ae8355 | Stefano Stabellini | qemu_put_byte(f, QEMU_VM_SECTION_FULL); |
2073 | a7ae8355 | Stefano Stabellini | qemu_put_be32(f, se->section_id); |
2074 | a7ae8355 | Stefano Stabellini | |
2075 | a7ae8355 | Stefano Stabellini | /* ID string */
|
2076 | a7ae8355 | Stefano Stabellini | len = strlen(se->idstr); |
2077 | a7ae8355 | Stefano Stabellini | qemu_put_byte(f, len); |
2078 | a7ae8355 | Stefano Stabellini | qemu_put_buffer(f, (uint8_t *)se->idstr, len); |
2079 | a7ae8355 | Stefano Stabellini | |
2080 | a7ae8355 | Stefano Stabellini | qemu_put_be32(f, se->instance_id); |
2081 | a7ae8355 | Stefano Stabellini | qemu_put_be32(f, se->version_id); |
2082 | a7ae8355 | Stefano Stabellini | |
2083 | a7ae8355 | Stefano Stabellini | vmstate_save(f, se); |
2084 | a7ae8355 | Stefano Stabellini | } |
2085 | a7ae8355 | Stefano Stabellini | |
2086 | a7ae8355 | Stefano Stabellini | qemu_put_byte(f, QEMU_VM_EOF); |
2087 | a7ae8355 | Stefano Stabellini | |
2088 | a7ae8355 | Stefano Stabellini | return qemu_file_get_error(f);
|
2089 | a7ae8355 | Stefano Stabellini | } |
2090 | a7ae8355 | Stefano Stabellini | |
2091 | a672b469 | aliguori | static SaveStateEntry *find_se(const char *idstr, int instance_id) |
2092 | a672b469 | aliguori | { |
2093 | a672b469 | aliguori | SaveStateEntry *se; |
2094 | a672b469 | aliguori | |
2095 | 72cf2d4f | Blue Swirl | QTAILQ_FOREACH(se, &savevm_handlers, entry) { |
2096 | a672b469 | aliguori | if (!strcmp(se->idstr, idstr) &&
|
2097 | 4d2ffa08 | Jan Kiszka | (instance_id == se->instance_id || |
2098 | 4d2ffa08 | Jan Kiszka | instance_id == se->alias_id)) |
2099 | a672b469 | aliguori | return se;
|
2100 | 7685ee6a | Alex Williamson | /* Migrating from an older version? */
|
2101 | 7685ee6a | Alex Williamson | if (strstr(se->idstr, idstr) && se->compat) {
|
2102 | 7685ee6a | Alex Williamson | if (!strcmp(se->compat->idstr, idstr) &&
|
2103 | 7685ee6a | Alex Williamson | (instance_id == se->compat->instance_id || |
2104 | 7685ee6a | Alex Williamson | instance_id == se->alias_id)) |
2105 | 7685ee6a | Alex Williamson | return se;
|
2106 | 7685ee6a | Alex Williamson | } |
2107 | a672b469 | aliguori | } |
2108 | a672b469 | aliguori | return NULL; |
2109 | a672b469 | aliguori | } |
2110 | a672b469 | aliguori | |
2111 | 811814bd | Juan Quintela | static const VMStateDescription *vmstate_get_subsection(const VMStateSubsection *sub, char *idstr) |
2112 | 811814bd | Juan Quintela | { |
2113 | 811814bd | Juan Quintela | while(sub && sub->needed) {
|
2114 | 811814bd | Juan Quintela | if (strcmp(idstr, sub->vmsd->name) == 0) { |
2115 | 811814bd | Juan Quintela | return sub->vmsd;
|
2116 | 811814bd | Juan Quintela | } |
2117 | 811814bd | Juan Quintela | sub++; |
2118 | 811814bd | Juan Quintela | } |
2119 | 811814bd | Juan Quintela | return NULL; |
2120 | 811814bd | Juan Quintela | } |
2121 | 811814bd | Juan Quintela | |
2122 | 811814bd | Juan Quintela | static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd, |
2123 | 811814bd | Juan Quintela | void *opaque)
|
2124 | 811814bd | Juan Quintela | { |
2125 | c6380724 | Juan Quintela | while (qemu_peek_byte(f, 0) == QEMU_VM_SUBSECTION) { |
2126 | 811814bd | Juan Quintela | char idstr[256]; |
2127 | 811814bd | Juan Quintela | int ret;
|
2128 | c6380724 | Juan Quintela | uint8_t version_id, len, size; |
2129 | 811814bd | Juan Quintela | const VMStateDescription *sub_vmsd;
|
2130 | 811814bd | Juan Quintela | |
2131 | c6380724 | Juan Quintela | len = qemu_peek_byte(f, 1);
|
2132 | c6380724 | Juan Quintela | if (len < strlen(vmsd->name) + 1) { |
2133 | c6380724 | Juan Quintela | /* subsection name has be be "section_name/a" */
|
2134 | c6380724 | Juan Quintela | return 0; |
2135 | c6380724 | Juan Quintela | } |
2136 | c6380724 | Juan Quintela | size = qemu_peek_buffer(f, (uint8_t *)idstr, len, 2);
|
2137 | c6380724 | Juan Quintela | if (size != len) {
|
2138 | c6380724 | Juan Quintela | return 0; |
2139 | c6380724 | Juan Quintela | } |
2140 | c6380724 | Juan Quintela | idstr[size] = 0;
|
2141 | 811814bd | Juan Quintela | |
2142 | c6380724 | Juan Quintela | if (strncmp(vmsd->name, idstr, strlen(vmsd->name)) != 0) { |
2143 | c6380724 | Juan Quintela | /* it don't have a valid subsection name */
|
2144 | c6380724 | Juan Quintela | return 0; |
2145 | c6380724 | Juan Quintela | } |
2146 | 3da9eebd | Juan Quintela | sub_vmsd = vmstate_get_subsection(vmsd->subsections, idstr); |
2147 | 811814bd | Juan Quintela | if (sub_vmsd == NULL) { |
2148 | 811814bd | Juan Quintela | return -ENOENT;
|
2149 | 811814bd | Juan Quintela | } |
2150 | c6380724 | Juan Quintela | qemu_file_skip(f, 1); /* subsection */ |
2151 | c6380724 | Juan Quintela | qemu_file_skip(f, 1); /* len */ |
2152 | c6380724 | Juan Quintela | qemu_file_skip(f, len); /* idstr */
|
2153 | c6380724 | Juan Quintela | version_id = qemu_get_be32(f); |
2154 | c6380724 | Juan Quintela | |
2155 | 811814bd | Juan Quintela | ret = vmstate_load_state(f, sub_vmsd, opaque, version_id); |
2156 | 811814bd | Juan Quintela | if (ret) {
|
2157 | 811814bd | Juan Quintela | return ret;
|
2158 | 811814bd | Juan Quintela | } |
2159 | 811814bd | Juan Quintela | } |
2160 | 811814bd | Juan Quintela | return 0; |
2161 | 811814bd | Juan Quintela | } |
2162 | 811814bd | Juan Quintela | |
2163 | 811814bd | Juan Quintela | static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd, |
2164 | 811814bd | Juan Quintela | void *opaque)
|
2165 | 811814bd | Juan Quintela | { |
2166 | 811814bd | Juan Quintela | const VMStateSubsection *sub = vmsd->subsections;
|
2167 | 811814bd | Juan Quintela | |
2168 | 811814bd | Juan Quintela | while (sub && sub->needed) {
|
2169 | 811814bd | Juan Quintela | if (sub->needed(opaque)) {
|
2170 | 811814bd | Juan Quintela | const VMStateDescription *vmsd = sub->vmsd;
|
2171 | 811814bd | Juan Quintela | uint8_t len; |
2172 | 811814bd | Juan Quintela | |
2173 | 811814bd | Juan Quintela | qemu_put_byte(f, QEMU_VM_SUBSECTION); |
2174 | 811814bd | Juan Quintela | len = strlen(vmsd->name); |
2175 | 811814bd | Juan Quintela | qemu_put_byte(f, len); |
2176 | 811814bd | Juan Quintela | qemu_put_buffer(f, (uint8_t *)vmsd->name, len); |
2177 | 811814bd | Juan Quintela | qemu_put_be32(f, vmsd->version_id); |
2178 | 811814bd | Juan Quintela | vmstate_save_state(f, vmsd, opaque); |
2179 | 811814bd | Juan Quintela | } |
2180 | 811814bd | Juan Quintela | sub++; |
2181 | 811814bd | Juan Quintela | } |
2182 | 811814bd | Juan Quintela | } |
2183 | 811814bd | Juan Quintela | |
2184 | a672b469 | aliguori | typedef struct LoadStateEntry { |
2185 | 72cf2d4f | Blue Swirl | QLIST_ENTRY(LoadStateEntry) entry; |
2186 | a672b469 | aliguori | SaveStateEntry *se; |
2187 | a672b469 | aliguori | int section_id;
|
2188 | a672b469 | aliguori | int version_id;
|
2189 | a672b469 | aliguori | } LoadStateEntry; |
2190 | a672b469 | aliguori | |
2191 | a672b469 | aliguori | int qemu_loadvm_state(QEMUFile *f)
|
2192 | a672b469 | aliguori | { |
2193 | 72cf2d4f | Blue Swirl | QLIST_HEAD(, LoadStateEntry) loadvm_handlers = |
2194 | 72cf2d4f | Blue Swirl | QLIST_HEAD_INITIALIZER(loadvm_handlers); |
2195 | f4dbb8dd | Juan Quintela | LoadStateEntry *le, *new_le; |
2196 | a672b469 | aliguori | uint8_t section_type; |
2197 | a672b469 | aliguori | unsigned int v; |
2198 | a672b469 | aliguori | int ret;
|
2199 | a672b469 | aliguori | |
2200 | e1c37d0e | Luiz Capitulino | if (qemu_savevm_state_blocked(NULL)) { |
2201 | dc912121 | Alex Williamson | return -EINVAL;
|
2202 | dc912121 | Alex Williamson | } |
2203 | dc912121 | Alex Williamson | |
2204 | a672b469 | aliguori | v = qemu_get_be32(f); |
2205 | a672b469 | aliguori | if (v != QEMU_VM_FILE_MAGIC)
|
2206 | a672b469 | aliguori | return -EINVAL;
|
2207 | a672b469 | aliguori | |
2208 | a672b469 | aliguori | v = qemu_get_be32(f); |
2209 | bbfe1408 | Juan Quintela | if (v == QEMU_VM_FILE_VERSION_COMPAT) {
|
2210 | bbfe1408 | Juan Quintela | fprintf(stderr, "SaveVM v2 format is obsolete and don't work anymore\n");
|
2211 | bbfe1408 | Juan Quintela | return -ENOTSUP;
|
2212 | bbfe1408 | Juan Quintela | } |
2213 | a672b469 | aliguori | if (v != QEMU_VM_FILE_VERSION)
|
2214 | a672b469 | aliguori | return -ENOTSUP;
|
2215 | a672b469 | aliguori | |
2216 | a672b469 | aliguori | while ((section_type = qemu_get_byte(f)) != QEMU_VM_EOF) {
|
2217 | a672b469 | aliguori | uint32_t instance_id, version_id, section_id; |
2218 | a672b469 | aliguori | SaveStateEntry *se; |
2219 | a672b469 | aliguori | char idstr[257]; |
2220 | a672b469 | aliguori | int len;
|
2221 | a672b469 | aliguori | |
2222 | a672b469 | aliguori | switch (section_type) {
|
2223 | a672b469 | aliguori | case QEMU_VM_SECTION_START:
|
2224 | a672b469 | aliguori | case QEMU_VM_SECTION_FULL:
|
2225 | a672b469 | aliguori | /* Read section start */
|
2226 | a672b469 | aliguori | section_id = qemu_get_be32(f); |
2227 | a672b469 | aliguori | len = qemu_get_byte(f); |
2228 | a672b469 | aliguori | qemu_get_buffer(f, (uint8_t *)idstr, len); |
2229 | a672b469 | aliguori | idstr[len] = 0;
|
2230 | a672b469 | aliguori | instance_id = qemu_get_be32(f); |
2231 | a672b469 | aliguori | version_id = qemu_get_be32(f); |
2232 | a672b469 | aliguori | |
2233 | a672b469 | aliguori | /* Find savevm section */
|
2234 | a672b469 | aliguori | se = find_se(idstr, instance_id); |
2235 | a672b469 | aliguori | if (se == NULL) { |
2236 | a672b469 | aliguori | fprintf(stderr, "Unknown savevm section or instance '%s' %d\n", idstr, instance_id);
|
2237 | a672b469 | aliguori | ret = -EINVAL; |
2238 | a672b469 | aliguori | goto out;
|
2239 | a672b469 | aliguori | } |
2240 | a672b469 | aliguori | |
2241 | a672b469 | aliguori | /* Validate version */
|
2242 | a672b469 | aliguori | if (version_id > se->version_id) {
|
2243 | a672b469 | aliguori | fprintf(stderr, "savevm: unsupported version %d for '%s' v%d\n",
|
2244 | a672b469 | aliguori | version_id, idstr, se->version_id); |
2245 | a672b469 | aliguori | ret = -EINVAL; |
2246 | a672b469 | aliguori | goto out;
|
2247 | a672b469 | aliguori | } |
2248 | a672b469 | aliguori | |
2249 | a672b469 | aliguori | /* Add entry */
|
2250 | 7267c094 | Anthony Liguori | le = g_malloc0(sizeof(*le));
|
2251 | a672b469 | aliguori | |
2252 | a672b469 | aliguori | le->se = se; |
2253 | a672b469 | aliguori | le->section_id = section_id; |
2254 | a672b469 | aliguori | le->version_id = version_id; |
2255 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&loadvm_handlers, le, entry); |
2256 | a672b469 | aliguori | |
2257 | 4082be4d | Juan Quintela | ret = vmstate_load(f, le->se, le->version_id); |
2258 | b5a22e4a | Juan Quintela | if (ret < 0) { |
2259 | b5a22e4a | Juan Quintela | fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
|
2260 | b5a22e4a | Juan Quintela | instance_id, idstr); |
2261 | b5a22e4a | Juan Quintela | goto out;
|
2262 | b5a22e4a | Juan Quintela | } |
2263 | a672b469 | aliguori | break;
|
2264 | a672b469 | aliguori | case QEMU_VM_SECTION_PART:
|
2265 | a672b469 | aliguori | case QEMU_VM_SECTION_END:
|
2266 | a672b469 | aliguori | section_id = qemu_get_be32(f); |
2267 | a672b469 | aliguori | |
2268 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(le, &loadvm_handlers, entry) { |
2269 | f4dbb8dd | Juan Quintela | if (le->section_id == section_id) {
|
2270 | f4dbb8dd | Juan Quintela | break;
|
2271 | f4dbb8dd | Juan Quintela | } |
2272 | f4dbb8dd | Juan Quintela | } |
2273 | a672b469 | aliguori | if (le == NULL) { |
2274 | a672b469 | aliguori | fprintf(stderr, "Unknown savevm section %d\n", section_id);
|
2275 | a672b469 | aliguori | ret = -EINVAL; |
2276 | a672b469 | aliguori | goto out;
|
2277 | a672b469 | aliguori | } |
2278 | a672b469 | aliguori | |
2279 | 4082be4d | Juan Quintela | ret = vmstate_load(f, le->se, le->version_id); |
2280 | b5a22e4a | Juan Quintela | if (ret < 0) { |
2281 | b5a22e4a | Juan Quintela | fprintf(stderr, "qemu: warning: error while loading state section id %d\n",
|
2282 | b5a22e4a | Juan Quintela | section_id); |
2283 | b5a22e4a | Juan Quintela | goto out;
|
2284 | b5a22e4a | Juan Quintela | } |
2285 | a672b469 | aliguori | break;
|
2286 | a672b469 | aliguori | default:
|
2287 | a672b469 | aliguori | fprintf(stderr, "Unknown savevm section type %d\n", section_type);
|
2288 | a672b469 | aliguori | ret = -EINVAL; |
2289 | a672b469 | aliguori | goto out;
|
2290 | a672b469 | aliguori | } |
2291 | a672b469 | aliguori | } |
2292 | a672b469 | aliguori | |
2293 | ea375f9a | Jan Kiszka | cpu_synchronize_all_post_init(); |
2294 | ea375f9a | Jan Kiszka | |
2295 | a672b469 | aliguori | ret = 0;
|
2296 | a672b469 | aliguori | |
2297 | a672b469 | aliguori | out:
|
2298 | 72cf2d4f | Blue Swirl | QLIST_FOREACH_SAFE(le, &loadvm_handlers, entry, new_le) { |
2299 | 72cf2d4f | Blue Swirl | QLIST_REMOVE(le, entry); |
2300 | 7267c094 | Anthony Liguori | g_free(le); |
2301 | a672b469 | aliguori | } |
2302 | a672b469 | aliguori | |
2303 | 42802d47 | Juan Quintela | if (ret == 0) { |
2304 | 42802d47 | Juan Quintela | ret = qemu_file_get_error(f); |
2305 | 624b9cc2 | Juan Quintela | } |
2306 | a672b469 | aliguori | |
2307 | a672b469 | aliguori | return ret;
|
2308 | a672b469 | aliguori | } |
2309 | a672b469 | aliguori | |
2310 | 29d78271 | Stefan Hajnoczi | static BlockDriverState *find_vmstate_bs(void) |
2311 | 29d78271 | Stefan Hajnoczi | { |
2312 | 29d78271 | Stefan Hajnoczi | BlockDriverState *bs = NULL;
|
2313 | 29d78271 | Stefan Hajnoczi | while ((bs = bdrv_next(bs))) {
|
2314 | 29d78271 | Stefan Hajnoczi | if (bdrv_can_snapshot(bs)) {
|
2315 | 29d78271 | Stefan Hajnoczi | return bs;
|
2316 | 29d78271 | Stefan Hajnoczi | } |
2317 | 29d78271 | Stefan Hajnoczi | } |
2318 | 29d78271 | Stefan Hajnoczi | return NULL; |
2319 | 29d78271 | Stefan Hajnoczi | } |
2320 | 29d78271 | Stefan Hajnoczi | |
2321 | cb499fb2 | Kevin Wolf | /*
|
2322 | cb499fb2 | Kevin Wolf | * Deletes snapshots of a given name in all opened images.
|
2323 | cb499fb2 | Kevin Wolf | */
|
2324 | cb499fb2 | Kevin Wolf | static int del_existing_snapshots(Monitor *mon, const char *name) |
2325 | cb499fb2 | Kevin Wolf | { |
2326 | cb499fb2 | Kevin Wolf | BlockDriverState *bs; |
2327 | cb499fb2 | Kevin Wolf | QEMUSnapshotInfo sn1, *snapshot = &sn1; |
2328 | cb499fb2 | Kevin Wolf | int ret;
|
2329 | cb499fb2 | Kevin Wolf | |
2330 | dbc13590 | Markus Armbruster | bs = NULL;
|
2331 | dbc13590 | Markus Armbruster | while ((bs = bdrv_next(bs))) {
|
2332 | cb499fb2 | Kevin Wolf | if (bdrv_can_snapshot(bs) &&
|
2333 | cb499fb2 | Kevin Wolf | bdrv_snapshot_find(bs, snapshot, name) >= 0)
|
2334 | cb499fb2 | Kevin Wolf | { |
2335 | cb499fb2 | Kevin Wolf | ret = bdrv_snapshot_delete(bs, name); |
2336 | cb499fb2 | Kevin Wolf | if (ret < 0) { |
2337 | cb499fb2 | Kevin Wolf | monitor_printf(mon, |
2338 | cb499fb2 | Kevin Wolf | "Error while deleting snapshot on '%s'\n",
|
2339 | cb499fb2 | Kevin Wolf | bdrv_get_device_name(bs)); |
2340 | cb499fb2 | Kevin Wolf | return -1; |
2341 | cb499fb2 | Kevin Wolf | } |
2342 | cb499fb2 | Kevin Wolf | } |
2343 | cb499fb2 | Kevin Wolf | } |
2344 | cb499fb2 | Kevin Wolf | |
2345 | cb499fb2 | Kevin Wolf | return 0; |
2346 | cb499fb2 | Kevin Wolf | } |
2347 | cb499fb2 | Kevin Wolf | |
2348 | d54908a5 | Luiz Capitulino | void do_savevm(Monitor *mon, const QDict *qdict) |
2349 | a672b469 | aliguori | { |
2350 | a672b469 | aliguori | BlockDriverState *bs, *bs1; |
2351 | a672b469 | aliguori | QEMUSnapshotInfo sn1, *sn = &sn1, old_sn1, *old_sn = &old_sn1; |
2352 | cb499fb2 | Kevin Wolf | int ret;
|
2353 | a672b469 | aliguori | QEMUFile *f; |
2354 | a672b469 | aliguori | int saved_vm_running;
|
2355 | c2c9a466 | Kevin Wolf | uint64_t vm_state_size; |
2356 | 68b891ec | Stefan Weil | qemu_timeval tv; |
2357 | 7d631a11 | Miguel Di Ciurcio Filho | struct tm tm;
|
2358 | d54908a5 | Luiz Capitulino | const char *name = qdict_get_try_str(qdict, "name"); |
2359 | a672b469 | aliguori | |
2360 | feeee5ac | Miguel Di Ciurcio Filho | /* Verify if there is a device that doesn't support snapshots and is writable */
|
2361 | dbc13590 | Markus Armbruster | bs = NULL;
|
2362 | dbc13590 | Markus Armbruster | while ((bs = bdrv_next(bs))) {
|
2363 | feeee5ac | Miguel Di Ciurcio Filho | |
2364 | 07b70bfb | Markus Armbruster | if (!bdrv_is_inserted(bs) || bdrv_is_read_only(bs)) {
|
2365 | feeee5ac | Miguel Di Ciurcio Filho | continue;
|
2366 | feeee5ac | Miguel Di Ciurcio Filho | } |
2367 | feeee5ac | Miguel Di Ciurcio Filho | |
2368 | feeee5ac | Miguel Di Ciurcio Filho | if (!bdrv_can_snapshot(bs)) {
|
2369 | feeee5ac | Miguel Di Ciurcio Filho | monitor_printf(mon, "Device '%s' is writable but does not support snapshots.\n",
|
2370 | feeee5ac | Miguel Di Ciurcio Filho | bdrv_get_device_name(bs)); |
2371 | feeee5ac | Miguel Di Ciurcio Filho | return;
|
2372 | feeee5ac | Miguel Di Ciurcio Filho | } |
2373 | feeee5ac | Miguel Di Ciurcio Filho | } |
2374 | feeee5ac | Miguel Di Ciurcio Filho | |
2375 | 29d78271 | Stefan Hajnoczi | bs = find_vmstate_bs(); |
2376 | a672b469 | aliguori | if (!bs) {
|
2377 | 376253ec | aliguori | monitor_printf(mon, "No block device can accept snapshots\n");
|
2378 | a672b469 | aliguori | return;
|
2379 | a672b469 | aliguori | } |
2380 | a672b469 | aliguori | |
2381 | 1354869c | Luiz Capitulino | saved_vm_running = runstate_is_running(); |
2382 | 0461d5a6 | Luiz Capitulino | vm_stop(RUN_STATE_SAVE_VM); |
2383 | a672b469 | aliguori | |
2384 | cb499fb2 | Kevin Wolf | memset(sn, 0, sizeof(*sn)); |
2385 | a672b469 | aliguori | |
2386 | a672b469 | aliguori | /* fill auxiliary fields */
|
2387 | 68b891ec | Stefan Weil | qemu_gettimeofday(&tv); |
2388 | a672b469 | aliguori | sn->date_sec = tv.tv_sec; |
2389 | a672b469 | aliguori | sn->date_nsec = tv.tv_usec * 1000;
|
2390 | bc72ad67 | Alex Bligh | sn->vm_clock_nsec = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
2391 | a672b469 | aliguori | |
2392 | 7d631a11 | Miguel Di Ciurcio Filho | if (name) {
|
2393 | 7d631a11 | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_find(bs, old_sn, name); |
2394 | 7d631a11 | Miguel Di Ciurcio Filho | if (ret >= 0) { |
2395 | 7d631a11 | Miguel Di Ciurcio Filho | pstrcpy(sn->name, sizeof(sn->name), old_sn->name);
|
2396 | 7d631a11 | Miguel Di Ciurcio Filho | pstrcpy(sn->id_str, sizeof(sn->id_str), old_sn->id_str);
|
2397 | 7d631a11 | Miguel Di Ciurcio Filho | } else {
|
2398 | 7d631a11 | Miguel Di Ciurcio Filho | pstrcpy(sn->name, sizeof(sn->name), name);
|
2399 | 7d631a11 | Miguel Di Ciurcio Filho | } |
2400 | 7d631a11 | Miguel Di Ciurcio Filho | } else {
|
2401 | d7d9b528 | Blue Swirl | /* cast below needed for OpenBSD where tv_sec is still 'long' */
|
2402 | d7d9b528 | Blue Swirl | localtime_r((const time_t *)&tv.tv_sec, &tm);
|
2403 | 7d631a11 | Miguel Di Ciurcio Filho | strftime(sn->name, sizeof(sn->name), "vm-%Y%m%d%H%M%S", &tm); |
2404 | 7d631a11 | Miguel Di Ciurcio Filho | } |
2405 | 7d631a11 | Miguel Di Ciurcio Filho | |
2406 | cb499fb2 | Kevin Wolf | /* Delete old snapshots of the same name */
|
2407 | f139a412 | Marcelo Tosatti | if (name && del_existing_snapshots(mon, name) < 0) { |
2408 | cb499fb2 | Kevin Wolf | goto the_end;
|
2409 | cb499fb2 | Kevin Wolf | } |
2410 | cb499fb2 | Kevin Wolf | |
2411 | a672b469 | aliguori | /* save the VM state */
|
2412 | 45566e9c | Christoph Hellwig | f = qemu_fopen_bdrv(bs, 1);
|
2413 | a672b469 | aliguori | if (!f) {
|
2414 | 376253ec | aliguori | monitor_printf(mon, "Could not open VM state file\n");
|
2415 | a672b469 | aliguori | goto the_end;
|
2416 | a672b469 | aliguori | } |
2417 | e1c37d0e | Luiz Capitulino | ret = qemu_savevm_state(f); |
2418 | 2d22b18f | aliguori | vm_state_size = qemu_ftell(f); |
2419 | a672b469 | aliguori | qemu_fclose(f); |
2420 | a672b469 | aliguori | if (ret < 0) { |
2421 | 376253ec | aliguori | monitor_printf(mon, "Error %d while writing VM\n", ret);
|
2422 | a672b469 | aliguori | goto the_end;
|
2423 | a672b469 | aliguori | } |
2424 | a672b469 | aliguori | |
2425 | a672b469 | aliguori | /* create the snapshots */
|
2426 | a672b469 | aliguori | |
2427 | dbc13590 | Markus Armbruster | bs1 = NULL;
|
2428 | dbc13590 | Markus Armbruster | while ((bs1 = bdrv_next(bs1))) {
|
2429 | feeee5ac | Miguel Di Ciurcio Filho | if (bdrv_can_snapshot(bs1)) {
|
2430 | 2d22b18f | aliguori | /* Write VM state size only to the image that contains the state */
|
2431 | 2d22b18f | aliguori | sn->vm_state_size = (bs == bs1 ? vm_state_size : 0);
|
2432 | a672b469 | aliguori | ret = bdrv_snapshot_create(bs1, sn); |
2433 | a672b469 | aliguori | if (ret < 0) { |
2434 | 376253ec | aliguori | monitor_printf(mon, "Error while creating snapshot on '%s'\n",
|
2435 | 376253ec | aliguori | bdrv_get_device_name(bs1)); |
2436 | a672b469 | aliguori | } |
2437 | a672b469 | aliguori | } |
2438 | a672b469 | aliguori | } |
2439 | a672b469 | aliguori | |
2440 | a672b469 | aliguori | the_end:
|
2441 | a672b469 | aliguori | if (saved_vm_running)
|
2442 | a672b469 | aliguori | vm_start(); |
2443 | a672b469 | aliguori | } |
2444 | a672b469 | aliguori | |
2445 | a7ae8355 | Stefano Stabellini | void qmp_xen_save_devices_state(const char *filename, Error **errp) |
2446 | a7ae8355 | Stefano Stabellini | { |
2447 | a7ae8355 | Stefano Stabellini | QEMUFile *f; |
2448 | a7ae8355 | Stefano Stabellini | int saved_vm_running;
|
2449 | a7ae8355 | Stefano Stabellini | int ret;
|
2450 | a7ae8355 | Stefano Stabellini | |
2451 | a7ae8355 | Stefano Stabellini | saved_vm_running = runstate_is_running(); |
2452 | a7ae8355 | Stefano Stabellini | vm_stop(RUN_STATE_SAVE_VM); |
2453 | a7ae8355 | Stefano Stabellini | |
2454 | a7ae8355 | Stefano Stabellini | f = qemu_fopen(filename, "wb");
|
2455 | a7ae8355 | Stefano Stabellini | if (!f) {
|
2456 | 1befce96 | Luiz Capitulino | error_setg_file_open(errp, errno, filename); |
2457 | a7ae8355 | Stefano Stabellini | goto the_end;
|
2458 | a7ae8355 | Stefano Stabellini | } |
2459 | a7ae8355 | Stefano Stabellini | ret = qemu_save_device_state(f); |
2460 | a7ae8355 | Stefano Stabellini | qemu_fclose(f); |
2461 | a7ae8355 | Stefano Stabellini | if (ret < 0) { |
2462 | a7ae8355 | Stefano Stabellini | error_set(errp, QERR_IO_ERROR); |
2463 | a7ae8355 | Stefano Stabellini | } |
2464 | a7ae8355 | Stefano Stabellini | |
2465 | a7ae8355 | Stefano Stabellini | the_end:
|
2466 | a7ae8355 | Stefano Stabellini | if (saved_vm_running)
|
2467 | a7ae8355 | Stefano Stabellini | vm_start(); |
2468 | a7ae8355 | Stefano Stabellini | } |
2469 | a7ae8355 | Stefano Stabellini | |
2470 | 03cd4655 | Markus Armbruster | int load_vmstate(const char *name) |
2471 | a672b469 | aliguori | { |
2472 | f0aa7a8b | Miguel Di Ciurcio Filho | BlockDriverState *bs, *bs_vm_state; |
2473 | 2d22b18f | aliguori | QEMUSnapshotInfo sn; |
2474 | a672b469 | aliguori | QEMUFile *f; |
2475 | 751c6a17 | Gerd Hoffmann | int ret;
|
2476 | a672b469 | aliguori | |
2477 | 29d78271 | Stefan Hajnoczi | bs_vm_state = find_vmstate_bs(); |
2478 | f0aa7a8b | Miguel Di Ciurcio Filho | if (!bs_vm_state) {
|
2479 | f0aa7a8b | Miguel Di Ciurcio Filho | error_report("No block device supports snapshots");
|
2480 | f0aa7a8b | Miguel Di Ciurcio Filho | return -ENOTSUP;
|
2481 | f0aa7a8b | Miguel Di Ciurcio Filho | } |
2482 | f0aa7a8b | Miguel Di Ciurcio Filho | |
2483 | f0aa7a8b | Miguel Di Ciurcio Filho | /* Don't even try to load empty VM states */
|
2484 | f0aa7a8b | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_find(bs_vm_state, &sn, name); |
2485 | f0aa7a8b | Miguel Di Ciurcio Filho | if (ret < 0) { |
2486 | f0aa7a8b | Miguel Di Ciurcio Filho | return ret;
|
2487 | f0aa7a8b | Miguel Di Ciurcio Filho | } else if (sn.vm_state_size == 0) { |
2488 | e11480db | Kevin Wolf | error_report("This is a disk-only snapshot. Revert to it offline "
|
2489 | e11480db | Kevin Wolf | "using qemu-img.");
|
2490 | f0aa7a8b | Miguel Di Ciurcio Filho | return -EINVAL;
|
2491 | f0aa7a8b | Miguel Di Ciurcio Filho | } |
2492 | f0aa7a8b | Miguel Di Ciurcio Filho | |
2493 | f0aa7a8b | Miguel Di Ciurcio Filho | /* Verify if there is any device that doesn't support snapshots and is
|
2494 | f0aa7a8b | Miguel Di Ciurcio Filho | writable and check if the requested snapshot is available too. */
|
2495 | dbc13590 | Markus Armbruster | bs = NULL;
|
2496 | dbc13590 | Markus Armbruster | while ((bs = bdrv_next(bs))) {
|
2497 | feeee5ac | Miguel Di Ciurcio Filho | |
2498 | 07b70bfb | Markus Armbruster | if (!bdrv_is_inserted(bs) || bdrv_is_read_only(bs)) {
|
2499 | feeee5ac | Miguel Di Ciurcio Filho | continue;
|
2500 | feeee5ac | Miguel Di Ciurcio Filho | } |
2501 | feeee5ac | Miguel Di Ciurcio Filho | |
2502 | feeee5ac | Miguel Di Ciurcio Filho | if (!bdrv_can_snapshot(bs)) {
|
2503 | feeee5ac | Miguel Di Ciurcio Filho | error_report("Device '%s' is writable but does not support snapshots.",
|
2504 | feeee5ac | Miguel Di Ciurcio Filho | bdrv_get_device_name(bs)); |
2505 | feeee5ac | Miguel Di Ciurcio Filho | return -ENOTSUP;
|
2506 | feeee5ac | Miguel Di Ciurcio Filho | } |
2507 | feeee5ac | Miguel Di Ciurcio Filho | |
2508 | f0aa7a8b | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_find(bs, &sn, name); |
2509 | f0aa7a8b | Miguel Di Ciurcio Filho | if (ret < 0) { |
2510 | f0aa7a8b | Miguel Di Ciurcio Filho | error_report("Device '%s' does not have the requested snapshot '%s'",
|
2511 | f0aa7a8b | Miguel Di Ciurcio Filho | bdrv_get_device_name(bs), name); |
2512 | f0aa7a8b | Miguel Di Ciurcio Filho | return ret;
|
2513 | f0aa7a8b | Miguel Di Ciurcio Filho | } |
2514 | a672b469 | aliguori | } |
2515 | a672b469 | aliguori | |
2516 | a672b469 | aliguori | /* Flush all IO requests so they don't interfere with the new state. */
|
2517 | 922453bc | Stefan Hajnoczi | bdrv_drain_all(); |
2518 | a672b469 | aliguori | |
2519 | f0aa7a8b | Miguel Di Ciurcio Filho | bs = NULL;
|
2520 | f0aa7a8b | Miguel Di Ciurcio Filho | while ((bs = bdrv_next(bs))) {
|
2521 | f0aa7a8b | Miguel Di Ciurcio Filho | if (bdrv_can_snapshot(bs)) {
|
2522 | f0aa7a8b | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_goto(bs, name); |
2523 | a672b469 | aliguori | if (ret < 0) { |
2524 | f0aa7a8b | Miguel Di Ciurcio Filho | error_report("Error %d while activating snapshot '%s' on '%s'",
|
2525 | f0aa7a8b | Miguel Di Ciurcio Filho | ret, name, bdrv_get_device_name(bs)); |
2526 | f0aa7a8b | Miguel Di Ciurcio Filho | return ret;
|
2527 | a672b469 | aliguori | } |
2528 | a672b469 | aliguori | } |
2529 | a672b469 | aliguori | } |
2530 | a672b469 | aliguori | |
2531 | a672b469 | aliguori | /* restore the VM state */
|
2532 | f0aa7a8b | Miguel Di Ciurcio Filho | f = qemu_fopen_bdrv(bs_vm_state, 0);
|
2533 | a672b469 | aliguori | if (!f) {
|
2534 | 1ecda02b | Markus Armbruster | error_report("Could not open VM state file");
|
2535 | 05f2401e | Juan Quintela | return -EINVAL;
|
2536 | a672b469 | aliguori | } |
2537 | f0aa7a8b | Miguel Di Ciurcio Filho | |
2538 | 5a8a49d7 | Jan Kiszka | qemu_system_reset(VMRESET_SILENT); |
2539 | a672b469 | aliguori | ret = qemu_loadvm_state(f); |
2540 | f0aa7a8b | Miguel Di Ciurcio Filho | |
2541 | a672b469 | aliguori | qemu_fclose(f); |
2542 | a672b469 | aliguori | if (ret < 0) { |
2543 | 1ecda02b | Markus Armbruster | error_report("Error %d while loading VM state", ret);
|
2544 | 05f2401e | Juan Quintela | return ret;
|
2545 | a672b469 | aliguori | } |
2546 | f0aa7a8b | Miguel Di Ciurcio Filho | |
2547 | 05f2401e | Juan Quintela | return 0; |
2548 | 7b630349 | Juan Quintela | } |
2549 | 7b630349 | Juan Quintela | |
2550 | d54908a5 | Luiz Capitulino | void do_delvm(Monitor *mon, const QDict *qdict) |
2551 | a672b469 | aliguori | { |
2552 | a672b469 | aliguori | BlockDriverState *bs, *bs1; |
2553 | 751c6a17 | Gerd Hoffmann | int ret;
|
2554 | d54908a5 | Luiz Capitulino | const char *name = qdict_get_str(qdict, "name"); |
2555 | a672b469 | aliguori | |
2556 | 29d78271 | Stefan Hajnoczi | bs = find_vmstate_bs(); |
2557 | a672b469 | aliguori | if (!bs) {
|
2558 | 376253ec | aliguori | monitor_printf(mon, "No block device supports snapshots\n");
|
2559 | a672b469 | aliguori | return;
|
2560 | a672b469 | aliguori | } |
2561 | a672b469 | aliguori | |
2562 | dbc13590 | Markus Armbruster | bs1 = NULL;
|
2563 | dbc13590 | Markus Armbruster | while ((bs1 = bdrv_next(bs1))) {
|
2564 | feeee5ac | Miguel Di Ciurcio Filho | if (bdrv_can_snapshot(bs1)) {
|
2565 | a672b469 | aliguori | ret = bdrv_snapshot_delete(bs1, name); |
2566 | a672b469 | aliguori | if (ret < 0) { |
2567 | a672b469 | aliguori | if (ret == -ENOTSUP)
|
2568 | 376253ec | aliguori | monitor_printf(mon, |
2569 | 376253ec | aliguori | "Snapshots not supported on device '%s'\n",
|
2570 | 376253ec | aliguori | bdrv_get_device_name(bs1)); |
2571 | a672b469 | aliguori | else
|
2572 | 376253ec | aliguori | monitor_printf(mon, "Error %d while deleting snapshot on "
|
2573 | 376253ec | aliguori | "'%s'\n", ret, bdrv_get_device_name(bs1));
|
2574 | a672b469 | aliguori | } |
2575 | a672b469 | aliguori | } |
2576 | a672b469 | aliguori | } |
2577 | a672b469 | aliguori | } |
2578 | a672b469 | aliguori | |
2579 | 84f2d0ea | Wenchao Xia | void do_info_snapshots(Monitor *mon, const QDict *qdict) |
2580 | a672b469 | aliguori | { |
2581 | a672b469 | aliguori | BlockDriverState *bs, *bs1; |
2582 | f9209915 | Miguel Di Ciurcio Filho | QEMUSnapshotInfo *sn_tab, *sn, s, *sn_info = &s; |
2583 | f9209915 | Miguel Di Ciurcio Filho | int nb_sns, i, ret, available;
|
2584 | f9209915 | Miguel Di Ciurcio Filho | int total;
|
2585 | f9209915 | Miguel Di Ciurcio Filho | int *available_snapshots;
|
2586 | a672b469 | aliguori | |
2587 | 29d78271 | Stefan Hajnoczi | bs = find_vmstate_bs(); |
2588 | a672b469 | aliguori | if (!bs) {
|
2589 | 376253ec | aliguori | monitor_printf(mon, "No available block device supports snapshots\n");
|
2590 | a672b469 | aliguori | return;
|
2591 | a672b469 | aliguori | } |
2592 | a672b469 | aliguori | |
2593 | a672b469 | aliguori | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
2594 | a672b469 | aliguori | if (nb_sns < 0) { |
2595 | 376253ec | aliguori | monitor_printf(mon, "bdrv_snapshot_list: error %d\n", nb_sns);
|
2596 | a672b469 | aliguori | return;
|
2597 | a672b469 | aliguori | } |
2598 | f9209915 | Miguel Di Ciurcio Filho | |
2599 | f9209915 | Miguel Di Ciurcio Filho | if (nb_sns == 0) { |
2600 | f9209915 | Miguel Di Ciurcio Filho | monitor_printf(mon, "There is no snapshot available.\n");
|
2601 | f9209915 | Miguel Di Ciurcio Filho | return;
|
2602 | f9209915 | Miguel Di Ciurcio Filho | } |
2603 | f9209915 | Miguel Di Ciurcio Filho | |
2604 | 7267c094 | Anthony Liguori | available_snapshots = g_malloc0(sizeof(int) * nb_sns); |
2605 | f9209915 | Miguel Di Ciurcio Filho | total = 0;
|
2606 | f9209915 | Miguel Di Ciurcio Filho | for (i = 0; i < nb_sns; i++) { |
2607 | a672b469 | aliguori | sn = &sn_tab[i]; |
2608 | f9209915 | Miguel Di Ciurcio Filho | available = 1;
|
2609 | f9209915 | Miguel Di Ciurcio Filho | bs1 = NULL;
|
2610 | f9209915 | Miguel Di Ciurcio Filho | |
2611 | f9209915 | Miguel Di Ciurcio Filho | while ((bs1 = bdrv_next(bs1))) {
|
2612 | f9209915 | Miguel Di Ciurcio Filho | if (bdrv_can_snapshot(bs1) && bs1 != bs) {
|
2613 | f9209915 | Miguel Di Ciurcio Filho | ret = bdrv_snapshot_find(bs1, sn_info, sn->id_str); |
2614 | f9209915 | Miguel Di Ciurcio Filho | if (ret < 0) { |
2615 | f9209915 | Miguel Di Ciurcio Filho | available = 0;
|
2616 | f9209915 | Miguel Di Ciurcio Filho | break;
|
2617 | f9209915 | Miguel Di Ciurcio Filho | } |
2618 | f9209915 | Miguel Di Ciurcio Filho | } |
2619 | f9209915 | Miguel Di Ciurcio Filho | } |
2620 | f9209915 | Miguel Di Ciurcio Filho | |
2621 | f9209915 | Miguel Di Ciurcio Filho | if (available) {
|
2622 | f9209915 | Miguel Di Ciurcio Filho | available_snapshots[total] = i; |
2623 | f9209915 | Miguel Di Ciurcio Filho | total++; |
2624 | f9209915 | Miguel Di Ciurcio Filho | } |
2625 | a672b469 | aliguori | } |
2626 | f9209915 | Miguel Di Ciurcio Filho | |
2627 | f9209915 | Miguel Di Ciurcio Filho | if (total > 0) { |
2628 | 5b917044 | Wenchao Xia | bdrv_snapshot_dump((fprintf_function)monitor_printf, mon, NULL);
|
2629 | 5b917044 | Wenchao Xia | monitor_printf(mon, "\n");
|
2630 | f9209915 | Miguel Di Ciurcio Filho | for (i = 0; i < total; i++) { |
2631 | f9209915 | Miguel Di Ciurcio Filho | sn = &sn_tab[available_snapshots[i]]; |
2632 | 5b917044 | Wenchao Xia | bdrv_snapshot_dump((fprintf_function)monitor_printf, mon, sn); |
2633 | 5b917044 | Wenchao Xia | monitor_printf(mon, "\n");
|
2634 | f9209915 | Miguel Di Ciurcio Filho | } |
2635 | f9209915 | Miguel Di Ciurcio Filho | } else {
|
2636 | f9209915 | Miguel Di Ciurcio Filho | monitor_printf(mon, "There is no suitable snapshot available\n");
|
2637 | f9209915 | Miguel Di Ciurcio Filho | } |
2638 | f9209915 | Miguel Di Ciurcio Filho | |
2639 | 7267c094 | Anthony Liguori | g_free(sn_tab); |
2640 | 7267c094 | Anthony Liguori | g_free(available_snapshots); |
2641 | f9209915 | Miguel Di Ciurcio Filho | |
2642 | a672b469 | aliguori | } |
2643 | c5705a77 | Avi Kivity | |
2644 | c5705a77 | Avi Kivity | void vmstate_register_ram(MemoryRegion *mr, DeviceState *dev)
|
2645 | c5705a77 | Avi Kivity | { |
2646 | 1ddde087 | Avi Kivity | qemu_ram_set_idstr(memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK, |
2647 | c5705a77 | Avi Kivity | memory_region_name(mr), dev); |
2648 | c5705a77 | Avi Kivity | } |
2649 | c5705a77 | Avi Kivity | |
2650 | c5705a77 | Avi Kivity | void vmstate_unregister_ram(MemoryRegion *mr, DeviceState *dev)
|
2651 | c5705a77 | Avi Kivity | { |
2652 | c5705a77 | Avi Kivity | /* Nothing do to while the implementation is in RAMBlock */
|
2653 | c5705a77 | Avi Kivity | } |
2654 | c5705a77 | Avi Kivity | |
2655 | c5705a77 | Avi Kivity | void vmstate_register_ram_global(MemoryRegion *mr)
|
2656 | c5705a77 | Avi Kivity | { |
2657 | c5705a77 | Avi Kivity | vmstate_register_ram(mr, NULL);
|
2658 | c5705a77 | Avi Kivity | } |