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