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1 | e3aff4f6 | aliguori | /*
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2 | e3aff4f6 | aliguori | * Command line utility to exercise the QEMU I/O path.
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3 | e3aff4f6 | aliguori | *
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4 | e3aff4f6 | aliguori | * Copyright (C) 2009 Red Hat, Inc.
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5 | e3aff4f6 | aliguori | * Copyright (c) 2003-2005 Silicon Graphics, Inc.
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6 | e3aff4f6 | aliguori | *
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7 | e3aff4f6 | aliguori | * This work is licensed under the terms of the GNU GPL, version 2 or later.
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8 | e3aff4f6 | aliguori | * See the COPYING file in the top-level directory.
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9 | e3aff4f6 | aliguori | */
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10 | c32d766a | Stefan Weil | #include <sys/time.h> |
11 | e3aff4f6 | aliguori | #include <sys/types.h> |
12 | e3aff4f6 | aliguori | #include <stdarg.h> |
13 | e3aff4f6 | aliguori | #include <stdio.h> |
14 | e3aff4f6 | aliguori | #include <getopt.h> |
15 | c32d766a | Stefan Weil | #include <libgen.h> |
16 | e3aff4f6 | aliguori | |
17 | e3aff4f6 | aliguori | #include "qemu-common.h" |
18 | a5a5238e | Paolo Bonzini | #include "main-loop.h" |
19 | e3aff4f6 | aliguori | #include "block_int.h" |
20 | e3aff4f6 | aliguori | #include "cmd.h" |
21 | d7bb72c8 | Stefan Hajnoczi | #include "trace/control.h" |
22 | e3aff4f6 | aliguori | |
23 | e3aff4f6 | aliguori | #define VERSION "0.0.1" |
24 | e3aff4f6 | aliguori | |
25 | 43642b38 | Devin Nakamura | #define CMD_NOFILE_OK 0x01 |
26 | e3aff4f6 | aliguori | |
27 | e3aff4f6 | aliguori | char *progname;
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28 | e3aff4f6 | aliguori | static BlockDriverState *bs;
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29 | e3aff4f6 | aliguori | |
30 | e3aff4f6 | aliguori | static int misalign; |
31 | e3aff4f6 | aliguori | |
32 | e3aff4f6 | aliguori | /*
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33 | cf070d7e | Christoph Hellwig | * Parse the pattern argument to various sub-commands.
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34 | cf070d7e | Christoph Hellwig | *
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35 | cf070d7e | Christoph Hellwig | * Because the pattern is used as an argument to memset it must evaluate
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36 | cf070d7e | Christoph Hellwig | * to an unsigned integer that fits into a single byte.
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37 | cf070d7e | Christoph Hellwig | */
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38 | cf070d7e | Christoph Hellwig | static int parse_pattern(const char *arg) |
39 | cf070d7e | Christoph Hellwig | { |
40 | 43642b38 | Devin Nakamura | char *endptr = NULL; |
41 | 43642b38 | Devin Nakamura | long pattern;
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42 | cf070d7e | Christoph Hellwig | |
43 | 43642b38 | Devin Nakamura | pattern = strtol(arg, &endptr, 0);
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44 | 43642b38 | Devin Nakamura | if (pattern < 0 || pattern > UCHAR_MAX || *endptr != '\0') { |
45 | 43642b38 | Devin Nakamura | printf("%s is not a valid pattern byte\n", arg);
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46 | 43642b38 | Devin Nakamura | return -1; |
47 | 43642b38 | Devin Nakamura | } |
48 | cf070d7e | Christoph Hellwig | |
49 | 43642b38 | Devin Nakamura | return pattern;
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50 | cf070d7e | Christoph Hellwig | } |
51 | cf070d7e | Christoph Hellwig | |
52 | cf070d7e | Christoph Hellwig | /*
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53 | e3aff4f6 | aliguori | * Memory allocation helpers.
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54 | e3aff4f6 | aliguori | *
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55 | e3aff4f6 | aliguori | * Make sure memory is aligned by default, or purposefully misaligned if
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56 | e3aff4f6 | aliguori | * that is specified on the command line.
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57 | e3aff4f6 | aliguori | */
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58 | e3aff4f6 | aliguori | |
59 | 43642b38 | Devin Nakamura | #define MISALIGN_OFFSET 16 |
60 | e3aff4f6 | aliguori | static void *qemu_io_alloc(size_t len, int pattern) |
61 | e3aff4f6 | aliguori | { |
62 | 43642b38 | Devin Nakamura | void *buf;
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63 | 43642b38 | Devin Nakamura | |
64 | 43642b38 | Devin Nakamura | if (misalign) {
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65 | 43642b38 | Devin Nakamura | len += MISALIGN_OFFSET; |
66 | 43642b38 | Devin Nakamura | } |
67 | 43642b38 | Devin Nakamura | buf = qemu_blockalign(bs, len); |
68 | 43642b38 | Devin Nakamura | memset(buf, pattern, len); |
69 | 43642b38 | Devin Nakamura | if (misalign) {
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70 | 43642b38 | Devin Nakamura | buf += MISALIGN_OFFSET; |
71 | 43642b38 | Devin Nakamura | } |
72 | 43642b38 | Devin Nakamura | return buf;
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73 | e3aff4f6 | aliguori | } |
74 | e3aff4f6 | aliguori | |
75 | e3aff4f6 | aliguori | static void qemu_io_free(void *p) |
76 | e3aff4f6 | aliguori | { |
77 | 43642b38 | Devin Nakamura | if (misalign) {
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78 | 43642b38 | Devin Nakamura | p -= MISALIGN_OFFSET; |
79 | 43642b38 | Devin Nakamura | } |
80 | 43642b38 | Devin Nakamura | qemu_vfree(p); |
81 | e3aff4f6 | aliguori | } |
82 | e3aff4f6 | aliguori | |
83 | 43642b38 | Devin Nakamura | static void dump_buffer(const void *buffer, int64_t offset, int len) |
84 | e3aff4f6 | aliguori | { |
85 | 43642b38 | Devin Nakamura | int i, j;
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86 | 43642b38 | Devin Nakamura | const uint8_t *p;
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87 | 43642b38 | Devin Nakamura | |
88 | 43642b38 | Devin Nakamura | for (i = 0, p = buffer; i < len; i += 16) { |
89 | 43642b38 | Devin Nakamura | const uint8_t *s = p;
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90 | 43642b38 | Devin Nakamura | |
91 | 43642b38 | Devin Nakamura | printf("%08" PRIx64 ": ", offset + i); |
92 | 43642b38 | Devin Nakamura | for (j = 0; j < 16 && i + j < len; j++, p++) { |
93 | 43642b38 | Devin Nakamura | printf("%02x ", *p);
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94 | 43642b38 | Devin Nakamura | } |
95 | 43642b38 | Devin Nakamura | printf(" ");
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96 | 43642b38 | Devin Nakamura | for (j = 0; j < 16 && i + j < len; j++, s++) { |
97 | 43642b38 | Devin Nakamura | if (isalnum(*s)) {
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98 | 43642b38 | Devin Nakamura | printf("%c", *s);
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99 | 43642b38 | Devin Nakamura | } else {
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100 | 43642b38 | Devin Nakamura | printf(".");
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101 | 43642b38 | Devin Nakamura | } |
102 | 43642b38 | Devin Nakamura | } |
103 | 43642b38 | Devin Nakamura | printf("\n");
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104 | 43642b38 | Devin Nakamura | } |
105 | e3aff4f6 | aliguori | } |
106 | e3aff4f6 | aliguori | |
107 | 43642b38 | Devin Nakamura | static void print_report(const char *op, struct timeval *t, int64_t offset, |
108 | 43642b38 | Devin Nakamura | int count, int total, int cnt, int Cflag) |
109 | e3aff4f6 | aliguori | { |
110 | 43642b38 | Devin Nakamura | char s1[64], s2[64], ts[64]; |
111 | 43642b38 | Devin Nakamura | |
112 | 43642b38 | Devin Nakamura | timestr(t, ts, sizeof(ts), Cflag ? VERBOSE_FIXED_TIME : 0); |
113 | 43642b38 | Devin Nakamura | if (!Cflag) {
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114 | 43642b38 | Devin Nakamura | cvtstr((double)total, s1, sizeof(s1)); |
115 | 43642b38 | Devin Nakamura | cvtstr(tdiv((double)total, *t), s2, sizeof(s2)); |
116 | 43642b38 | Devin Nakamura | printf("%s %d/%d bytes at offset %" PRId64 "\n", |
117 | 43642b38 | Devin Nakamura | op, total, count, offset); |
118 | 43642b38 | Devin Nakamura | printf("%s, %d ops; %s (%s/sec and %.4f ops/sec)\n",
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119 | 43642b38 | Devin Nakamura | s1, cnt, ts, s2, tdiv((double)cnt, *t));
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120 | 43642b38 | Devin Nakamura | } else {/* bytes,ops,time,bytes/sec,ops/sec */ |
121 | 43642b38 | Devin Nakamura | printf("%d,%d,%s,%.3f,%.3f\n",
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122 | 43642b38 | Devin Nakamura | total, cnt, ts, |
123 | 43642b38 | Devin Nakamura | tdiv((double)total, *t),
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124 | 43642b38 | Devin Nakamura | tdiv((double)cnt, *t));
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125 | 43642b38 | Devin Nakamura | } |
126 | e3aff4f6 | aliguori | } |
127 | e3aff4f6 | aliguori | |
128 | cf57298a | Christoph Hellwig | /*
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129 | cf57298a | Christoph Hellwig | * Parse multiple length statements for vectored I/O, and construct an I/O
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130 | cf57298a | Christoph Hellwig | * vector matching it.
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131 | cf57298a | Christoph Hellwig | */
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132 | cf57298a | Christoph Hellwig | static void * |
133 | cf57298a | Christoph Hellwig | create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern) |
134 | cf57298a | Christoph Hellwig | { |
135 | 031380d8 | Stefan Hajnoczi | size_t *sizes = g_new0(size_t, nr_iov); |
136 | 43642b38 | Devin Nakamura | size_t count = 0;
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137 | 43642b38 | Devin Nakamura | void *buf = NULL; |
138 | 43642b38 | Devin Nakamura | void *p;
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139 | 43642b38 | Devin Nakamura | int i;
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140 | 43642b38 | Devin Nakamura | |
141 | 43642b38 | Devin Nakamura | for (i = 0; i < nr_iov; i++) { |
142 | 43642b38 | Devin Nakamura | char *arg = argv[i];
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143 | 43642b38 | Devin Nakamura | int64_t len; |
144 | 43642b38 | Devin Nakamura | |
145 | 43642b38 | Devin Nakamura | len = cvtnum(arg); |
146 | 43642b38 | Devin Nakamura | if (len < 0) { |
147 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", arg);
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148 | 43642b38 | Devin Nakamura | goto fail;
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149 | 43642b38 | Devin Nakamura | } |
150 | 43642b38 | Devin Nakamura | |
151 | 43642b38 | Devin Nakamura | /* should be SIZE_T_MAX, but that doesn't exist */
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152 | 43642b38 | Devin Nakamura | if (len > INT_MAX) {
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153 | 43642b38 | Devin Nakamura | printf("too large length argument -- %s\n", arg);
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154 | 43642b38 | Devin Nakamura | goto fail;
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155 | 43642b38 | Devin Nakamura | } |
156 | 43642b38 | Devin Nakamura | |
157 | 43642b38 | Devin Nakamura | if (len & 0x1ff) { |
158 | 43642b38 | Devin Nakamura | printf("length argument %" PRId64
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159 | 43642b38 | Devin Nakamura | " is not sector aligned\n", len);
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160 | 43642b38 | Devin Nakamura | goto fail;
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161 | 43642b38 | Devin Nakamura | } |
162 | 43642b38 | Devin Nakamura | |
163 | 43642b38 | Devin Nakamura | sizes[i] = len; |
164 | 43642b38 | Devin Nakamura | count += len; |
165 | 43642b38 | Devin Nakamura | } |
166 | 43642b38 | Devin Nakamura | |
167 | 43642b38 | Devin Nakamura | qemu_iovec_init(qiov, nr_iov); |
168 | 43642b38 | Devin Nakamura | |
169 | 43642b38 | Devin Nakamura | buf = p = qemu_io_alloc(count, pattern); |
170 | 43642b38 | Devin Nakamura | |
171 | 43642b38 | Devin Nakamura | for (i = 0; i < nr_iov; i++) { |
172 | 43642b38 | Devin Nakamura | qemu_iovec_add(qiov, p, sizes[i]); |
173 | 43642b38 | Devin Nakamura | p += sizes[i]; |
174 | 43642b38 | Devin Nakamura | } |
175 | cf57298a | Christoph Hellwig | |
176 | 40a0d7c3 | Kevin Wolf | fail:
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177 | 031380d8 | Stefan Hajnoczi | g_free(sizes); |
178 | 43642b38 | Devin Nakamura | return buf;
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179 | cf57298a | Christoph Hellwig | } |
180 | cf57298a | Christoph Hellwig | |
181 | e3aff4f6 | aliguori | static int do_read(char *buf, int64_t offset, int count, int *total) |
182 | e3aff4f6 | aliguori | { |
183 | 43642b38 | Devin Nakamura | int ret;
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184 | e3aff4f6 | aliguori | |
185 | 43642b38 | Devin Nakamura | ret = bdrv_read(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
186 | 43642b38 | Devin Nakamura | if (ret < 0) { |
187 | 43642b38 | Devin Nakamura | return ret;
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188 | 43642b38 | Devin Nakamura | } |
189 | 43642b38 | Devin Nakamura | *total = count; |
190 | 43642b38 | Devin Nakamura | return 1; |
191 | e3aff4f6 | aliguori | } |
192 | e3aff4f6 | aliguori | |
193 | e3aff4f6 | aliguori | static int do_write(char *buf, int64_t offset, int count, int *total) |
194 | e3aff4f6 | aliguori | { |
195 | 43642b38 | Devin Nakamura | int ret;
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196 | e3aff4f6 | aliguori | |
197 | 43642b38 | Devin Nakamura | ret = bdrv_write(bs, offset >> 9, (uint8_t *)buf, count >> 9); |
198 | 43642b38 | Devin Nakamura | if (ret < 0) { |
199 | 43642b38 | Devin Nakamura | return ret;
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200 | 43642b38 | Devin Nakamura | } |
201 | 43642b38 | Devin Nakamura | *total = count; |
202 | 43642b38 | Devin Nakamura | return 1; |
203 | e3aff4f6 | aliguori | } |
204 | e3aff4f6 | aliguori | |
205 | e3aff4f6 | aliguori | static int do_pread(char *buf, int64_t offset, int count, int *total) |
206 | e3aff4f6 | aliguori | { |
207 | 43642b38 | Devin Nakamura | *total = bdrv_pread(bs, offset, (uint8_t *)buf, count); |
208 | 43642b38 | Devin Nakamura | if (*total < 0) { |
209 | 43642b38 | Devin Nakamura | return *total;
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210 | 43642b38 | Devin Nakamura | } |
211 | 43642b38 | Devin Nakamura | return 1; |
212 | e3aff4f6 | aliguori | } |
213 | e3aff4f6 | aliguori | |
214 | e3aff4f6 | aliguori | static int do_pwrite(char *buf, int64_t offset, int count, int *total) |
215 | e3aff4f6 | aliguori | { |
216 | 43642b38 | Devin Nakamura | *total = bdrv_pwrite(bs, offset, (uint8_t *)buf, count); |
217 | 43642b38 | Devin Nakamura | if (*total < 0) { |
218 | 43642b38 | Devin Nakamura | return *total;
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219 | 43642b38 | Devin Nakamura | } |
220 | 43642b38 | Devin Nakamura | return 1; |
221 | e3aff4f6 | aliguori | } |
222 | e3aff4f6 | aliguori | |
223 | 71b58b82 | Stefan Hajnoczi | typedef struct { |
224 | 71b58b82 | Stefan Hajnoczi | int64_t offset; |
225 | 71b58b82 | Stefan Hajnoczi | int count;
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226 | 71b58b82 | Stefan Hajnoczi | int *total;
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227 | 71b58b82 | Stefan Hajnoczi | int ret;
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228 | 71b58b82 | Stefan Hajnoczi | bool done;
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229 | 71b58b82 | Stefan Hajnoczi | } CoWriteZeroes; |
230 | 71b58b82 | Stefan Hajnoczi | |
231 | 71b58b82 | Stefan Hajnoczi | static void coroutine_fn co_write_zeroes_entry(void *opaque) |
232 | 71b58b82 | Stefan Hajnoczi | { |
233 | 71b58b82 | Stefan Hajnoczi | CoWriteZeroes *data = opaque; |
234 | 71b58b82 | Stefan Hajnoczi | |
235 | 71b58b82 | Stefan Hajnoczi | data->ret = bdrv_co_write_zeroes(bs, data->offset / BDRV_SECTOR_SIZE, |
236 | 71b58b82 | Stefan Hajnoczi | data->count / BDRV_SECTOR_SIZE); |
237 | 71b58b82 | Stefan Hajnoczi | data->done = true;
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238 | 71b58b82 | Stefan Hajnoczi | if (data->ret < 0) { |
239 | 71b58b82 | Stefan Hajnoczi | *data->total = data->ret; |
240 | 71b58b82 | Stefan Hajnoczi | return;
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241 | 71b58b82 | Stefan Hajnoczi | } |
242 | 71b58b82 | Stefan Hajnoczi | |
243 | 71b58b82 | Stefan Hajnoczi | *data->total = data->count; |
244 | 71b58b82 | Stefan Hajnoczi | } |
245 | 71b58b82 | Stefan Hajnoczi | |
246 | 71b58b82 | Stefan Hajnoczi | static int do_co_write_zeroes(int64_t offset, int count, int *total) |
247 | 71b58b82 | Stefan Hajnoczi | { |
248 | 71b58b82 | Stefan Hajnoczi | Coroutine *co; |
249 | 71b58b82 | Stefan Hajnoczi | CoWriteZeroes data = { |
250 | 71b58b82 | Stefan Hajnoczi | .offset = offset, |
251 | 71b58b82 | Stefan Hajnoczi | .count = count, |
252 | 71b58b82 | Stefan Hajnoczi | .total = total, |
253 | 71b58b82 | Stefan Hajnoczi | .done = false,
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254 | 71b58b82 | Stefan Hajnoczi | }; |
255 | 71b58b82 | Stefan Hajnoczi | |
256 | 71b58b82 | Stefan Hajnoczi | co = qemu_coroutine_create(co_write_zeroes_entry); |
257 | 71b58b82 | Stefan Hajnoczi | qemu_coroutine_enter(co, &data); |
258 | 71b58b82 | Stefan Hajnoczi | while (!data.done) {
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259 | 71b58b82 | Stefan Hajnoczi | qemu_aio_wait(); |
260 | 71b58b82 | Stefan Hajnoczi | } |
261 | 71b58b82 | Stefan Hajnoczi | if (data.ret < 0) { |
262 | 71b58b82 | Stefan Hajnoczi | return data.ret;
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263 | 71b58b82 | Stefan Hajnoczi | } else {
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264 | 71b58b82 | Stefan Hajnoczi | return 1; |
265 | 71b58b82 | Stefan Hajnoczi | } |
266 | 71b58b82 | Stefan Hajnoczi | } |
267 | 71b58b82 | Stefan Hajnoczi | |
268 | ca94dbc7 | Kevin Wolf | static int do_load_vmstate(char *buf, int64_t offset, int count, int *total) |
269 | ca94dbc7 | Kevin Wolf | { |
270 | 43642b38 | Devin Nakamura | *total = bdrv_load_vmstate(bs, (uint8_t *)buf, offset, count); |
271 | 43642b38 | Devin Nakamura | if (*total < 0) { |
272 | 43642b38 | Devin Nakamura | return *total;
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273 | 43642b38 | Devin Nakamura | } |
274 | 43642b38 | Devin Nakamura | return 1; |
275 | ca94dbc7 | Kevin Wolf | } |
276 | ca94dbc7 | Kevin Wolf | |
277 | ca94dbc7 | Kevin Wolf | static int do_save_vmstate(char *buf, int64_t offset, int count, int *total) |
278 | ca94dbc7 | Kevin Wolf | { |
279 | 43642b38 | Devin Nakamura | *total = bdrv_save_vmstate(bs, (uint8_t *)buf, offset, count); |
280 | 43642b38 | Devin Nakamura | if (*total < 0) { |
281 | 43642b38 | Devin Nakamura | return *total;
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282 | 43642b38 | Devin Nakamura | } |
283 | 43642b38 | Devin Nakamura | return 1; |
284 | ca94dbc7 | Kevin Wolf | } |
285 | ca94dbc7 | Kevin Wolf | |
286 | e3aff4f6 | aliguori | #define NOT_DONE 0x7fffffff |
287 | e3aff4f6 | aliguori | static void aio_rw_done(void *opaque, int ret) |
288 | e3aff4f6 | aliguori | { |
289 | 43642b38 | Devin Nakamura | *(int *)opaque = ret;
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290 | e3aff4f6 | aliguori | } |
291 | e3aff4f6 | aliguori | |
292 | e3aff4f6 | aliguori | static int do_aio_readv(QEMUIOVector *qiov, int64_t offset, int *total) |
293 | e3aff4f6 | aliguori | { |
294 | 43642b38 | Devin Nakamura | int async_ret = NOT_DONE;
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295 | e3aff4f6 | aliguori | |
296 | ad54ae80 | Paolo Bonzini | bdrv_aio_readv(bs, offset >> 9, qiov, qiov->size >> 9, |
297 | ad54ae80 | Paolo Bonzini | aio_rw_done, &async_ret); |
298 | 43642b38 | Devin Nakamura | while (async_ret == NOT_DONE) {
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299 | a5a5238e | Paolo Bonzini | main_loop_wait(false);
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300 | 43642b38 | Devin Nakamura | } |
301 | e3aff4f6 | aliguori | |
302 | 43642b38 | Devin Nakamura | *total = qiov->size; |
303 | 43642b38 | Devin Nakamura | return async_ret < 0 ? async_ret : 1; |
304 | e3aff4f6 | aliguori | } |
305 | e3aff4f6 | aliguori | |
306 | e3aff4f6 | aliguori | static int do_aio_writev(QEMUIOVector *qiov, int64_t offset, int *total) |
307 | e3aff4f6 | aliguori | { |
308 | 43642b38 | Devin Nakamura | int async_ret = NOT_DONE;
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309 | e3aff4f6 | aliguori | |
310 | ad54ae80 | Paolo Bonzini | bdrv_aio_writev(bs, offset >> 9, qiov, qiov->size >> 9, |
311 | ad54ae80 | Paolo Bonzini | aio_rw_done, &async_ret); |
312 | 43642b38 | Devin Nakamura | while (async_ret == NOT_DONE) {
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313 | a5a5238e | Paolo Bonzini | main_loop_wait(false);
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314 | 43642b38 | Devin Nakamura | } |
315 | e3aff4f6 | aliguori | |
316 | 43642b38 | Devin Nakamura | *total = qiov->size; |
317 | 43642b38 | Devin Nakamura | return async_ret < 0 ? async_ret : 1; |
318 | e3aff4f6 | aliguori | } |
319 | e3aff4f6 | aliguori | |
320 | 776cbbbd | Kevin Wolf | struct multiwrite_async_ret {
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321 | 43642b38 | Devin Nakamura | int num_done;
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322 | 43642b38 | Devin Nakamura | int error;
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323 | 776cbbbd | Kevin Wolf | }; |
324 | 776cbbbd | Kevin Wolf | |
325 | 776cbbbd | Kevin Wolf | static void multiwrite_cb(void *opaque, int ret) |
326 | 776cbbbd | Kevin Wolf | { |
327 | 43642b38 | Devin Nakamura | struct multiwrite_async_ret *async_ret = opaque;
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328 | 776cbbbd | Kevin Wolf | |
329 | 43642b38 | Devin Nakamura | async_ret->num_done++; |
330 | 43642b38 | Devin Nakamura | if (ret < 0) { |
331 | 43642b38 | Devin Nakamura | async_ret->error = ret; |
332 | 43642b38 | Devin Nakamura | } |
333 | 776cbbbd | Kevin Wolf | } |
334 | 776cbbbd | Kevin Wolf | |
335 | 776cbbbd | Kevin Wolf | static int do_aio_multiwrite(BlockRequest* reqs, int num_reqs, int *total) |
336 | 776cbbbd | Kevin Wolf | { |
337 | 43642b38 | Devin Nakamura | int i, ret;
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338 | 43642b38 | Devin Nakamura | struct multiwrite_async_ret async_ret = {
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339 | 43642b38 | Devin Nakamura | .num_done = 0,
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340 | 43642b38 | Devin Nakamura | .error = 0,
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341 | 43642b38 | Devin Nakamura | }; |
342 | 43642b38 | Devin Nakamura | |
343 | 43642b38 | Devin Nakamura | *total = 0;
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344 | 43642b38 | Devin Nakamura | for (i = 0; i < num_reqs; i++) { |
345 | 43642b38 | Devin Nakamura | reqs[i].cb = multiwrite_cb; |
346 | 43642b38 | Devin Nakamura | reqs[i].opaque = &async_ret; |
347 | 43642b38 | Devin Nakamura | *total += reqs[i].qiov->size; |
348 | 43642b38 | Devin Nakamura | } |
349 | 43642b38 | Devin Nakamura | |
350 | 43642b38 | Devin Nakamura | ret = bdrv_aio_multiwrite(bs, reqs, num_reqs); |
351 | 43642b38 | Devin Nakamura | if (ret < 0) { |
352 | 43642b38 | Devin Nakamura | return ret;
|
353 | 43642b38 | Devin Nakamura | } |
354 | 43642b38 | Devin Nakamura | |
355 | 43642b38 | Devin Nakamura | while (async_ret.num_done < num_reqs) {
|
356 | a5a5238e | Paolo Bonzini | main_loop_wait(false);
|
357 | 43642b38 | Devin Nakamura | } |
358 | 43642b38 | Devin Nakamura | |
359 | 43642b38 | Devin Nakamura | return async_ret.error < 0 ? async_ret.error : 1; |
360 | 776cbbbd | Kevin Wolf | } |
361 | e3aff4f6 | aliguori | |
362 | 43642b38 | Devin Nakamura | static void read_help(void) |
363 | e3aff4f6 | aliguori | { |
364 | 43642b38 | Devin Nakamura | printf( |
365 | e3aff4f6 | aliguori | "\n"
|
366 | e3aff4f6 | aliguori | " reads a range of bytes from the given offset\n"
|
367 | e3aff4f6 | aliguori | "\n"
|
368 | e3aff4f6 | aliguori | " Example:\n"
|
369 | e3aff4f6 | aliguori | " 'read -v 512 1k' - dumps 1 kilobyte read from 512 bytes into the file\n"
|
370 | e3aff4f6 | aliguori | "\n"
|
371 | e3aff4f6 | aliguori | " Reads a segment of the currently open file, optionally dumping it to the\n"
|
372 | e3aff4f6 | aliguori | " standard output stream (with -v option) for subsequent inspection.\n"
|
373 | ca94dbc7 | Kevin Wolf | " -b, -- read from the VM state rather than the virtual disk\n"
|
374 | d9654a58 | Kevin Wolf | " -C, -- report statistics in a machine parsable format\n"
|
375 | d9654a58 | Kevin Wolf | " -l, -- length for pattern verification (only with -P)\n"
|
376 | e3aff4f6 | aliguori | " -p, -- use bdrv_pread to read the file\n"
|
377 | c48101ae | aliguori | " -P, -- use a pattern to verify read data\n"
|
378 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
379 | d9654a58 | Kevin Wolf | " -s, -- start offset for pattern verification (only with -P)\n"
|
380 | d9654a58 | Kevin Wolf | " -v, -- dump buffer to standard output\n"
|
381 | e3aff4f6 | aliguori | "\n");
|
382 | e3aff4f6 | aliguori | } |
383 | e3aff4f6 | aliguori | |
384 | 22a2bdcb | Blue Swirl | static int read_f(int argc, char **argv); |
385 | 22a2bdcb | Blue Swirl | |
386 | 22a2bdcb | Blue Swirl | static const cmdinfo_t read_cmd = { |
387 | 43642b38 | Devin Nakamura | .name = "read",
|
388 | 43642b38 | Devin Nakamura | .altname = "r",
|
389 | 43642b38 | Devin Nakamura | .cfunc = read_f, |
390 | 43642b38 | Devin Nakamura | .argmin = 2,
|
391 | 43642b38 | Devin Nakamura | .argmax = -1,
|
392 | 43642b38 | Devin Nakamura | .args = "[-abCpqv] [-P pattern [-s off] [-l len]] off len",
|
393 | 43642b38 | Devin Nakamura | .oneline = "reads a number of bytes at a specified offset",
|
394 | 43642b38 | Devin Nakamura | .help = read_help, |
395 | 22a2bdcb | Blue Swirl | }; |
396 | 22a2bdcb | Blue Swirl | |
397 | 43642b38 | Devin Nakamura | static int read_f(int argc, char **argv) |
398 | e3aff4f6 | aliguori | { |
399 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
400 | 43642b38 | Devin Nakamura | int Cflag = 0, pflag = 0, qflag = 0, vflag = 0; |
401 | 43642b38 | Devin Nakamura | int Pflag = 0, sflag = 0, lflag = 0, bflag = 0; |
402 | 43642b38 | Devin Nakamura | int c, cnt;
|
403 | 43642b38 | Devin Nakamura | char *buf;
|
404 | 43642b38 | Devin Nakamura | int64_t offset; |
405 | 43642b38 | Devin Nakamura | int count;
|
406 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
407 | 43642b38 | Devin Nakamura | int total = 0; |
408 | 43642b38 | Devin Nakamura | int pattern = 0, pattern_offset = 0, pattern_count = 0; |
409 | 43642b38 | Devin Nakamura | |
410 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != EOF) { |
411 | 43642b38 | Devin Nakamura | switch (c) {
|
412 | 43642b38 | Devin Nakamura | case 'b': |
413 | 43642b38 | Devin Nakamura | bflag = 1;
|
414 | 43642b38 | Devin Nakamura | break;
|
415 | 43642b38 | Devin Nakamura | case 'C': |
416 | 43642b38 | Devin Nakamura | Cflag = 1;
|
417 | 43642b38 | Devin Nakamura | break;
|
418 | 43642b38 | Devin Nakamura | case 'l': |
419 | 43642b38 | Devin Nakamura | lflag = 1;
|
420 | 43642b38 | Devin Nakamura | pattern_count = cvtnum(optarg); |
421 | 43642b38 | Devin Nakamura | if (pattern_count < 0) { |
422 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", optarg);
|
423 | 43642b38 | Devin Nakamura | return 0; |
424 | 43642b38 | Devin Nakamura | } |
425 | 43642b38 | Devin Nakamura | break;
|
426 | 43642b38 | Devin Nakamura | case 'p': |
427 | 43642b38 | Devin Nakamura | pflag = 1;
|
428 | 43642b38 | Devin Nakamura | break;
|
429 | 43642b38 | Devin Nakamura | case 'P': |
430 | 43642b38 | Devin Nakamura | Pflag = 1;
|
431 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
432 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
433 | 43642b38 | Devin Nakamura | return 0; |
434 | 43642b38 | Devin Nakamura | } |
435 | 43642b38 | Devin Nakamura | break;
|
436 | 43642b38 | Devin Nakamura | case 'q': |
437 | 43642b38 | Devin Nakamura | qflag = 1;
|
438 | 43642b38 | Devin Nakamura | break;
|
439 | 43642b38 | Devin Nakamura | case 's': |
440 | 43642b38 | Devin Nakamura | sflag = 1;
|
441 | 43642b38 | Devin Nakamura | pattern_offset = cvtnum(optarg); |
442 | 43642b38 | Devin Nakamura | if (pattern_offset < 0) { |
443 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", optarg);
|
444 | 43642b38 | Devin Nakamura | return 0; |
445 | 43642b38 | Devin Nakamura | } |
446 | 43642b38 | Devin Nakamura | break;
|
447 | 43642b38 | Devin Nakamura | case 'v': |
448 | 43642b38 | Devin Nakamura | vflag = 1;
|
449 | 43642b38 | Devin Nakamura | break;
|
450 | 43642b38 | Devin Nakamura | default:
|
451 | 43642b38 | Devin Nakamura | return command_usage(&read_cmd);
|
452 | 43642b38 | Devin Nakamura | } |
453 | 43642b38 | Devin Nakamura | } |
454 | 43642b38 | Devin Nakamura | |
455 | 43642b38 | Devin Nakamura | if (optind != argc - 2) { |
456 | 43642b38 | Devin Nakamura | return command_usage(&read_cmd);
|
457 | 43642b38 | Devin Nakamura | } |
458 | 43642b38 | Devin Nakamura | |
459 | 43642b38 | Devin Nakamura | if (bflag && pflag) {
|
460 | 43642b38 | Devin Nakamura | printf("-b and -p cannot be specified at the same time\n");
|
461 | 43642b38 | Devin Nakamura | return 0; |
462 | 43642b38 | Devin Nakamura | } |
463 | 43642b38 | Devin Nakamura | |
464 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
465 | 43642b38 | Devin Nakamura | if (offset < 0) { |
466 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
467 | 43642b38 | Devin Nakamura | return 0; |
468 | 43642b38 | Devin Nakamura | } |
469 | 43642b38 | Devin Nakamura | |
470 | 43642b38 | Devin Nakamura | optind++; |
471 | 43642b38 | Devin Nakamura | count = cvtnum(argv[optind]); |
472 | 43642b38 | Devin Nakamura | if (count < 0) { |
473 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
474 | 43642b38 | Devin Nakamura | return 0; |
475 | 43642b38 | Devin Nakamura | } |
476 | e3aff4f6 | aliguori | |
477 | d9654a58 | Kevin Wolf | if (!Pflag && (lflag || sflag)) {
|
478 | d9654a58 | Kevin Wolf | return command_usage(&read_cmd);
|
479 | d9654a58 | Kevin Wolf | } |
480 | d9654a58 | Kevin Wolf | |
481 | d9654a58 | Kevin Wolf | if (!lflag) {
|
482 | d9654a58 | Kevin Wolf | pattern_count = count - pattern_offset; |
483 | d9654a58 | Kevin Wolf | } |
484 | d9654a58 | Kevin Wolf | |
485 | d9654a58 | Kevin Wolf | if ((pattern_count < 0) || (pattern_count + pattern_offset > count)) { |
486 | 07f35073 | Dong Xu Wang | printf("pattern verification range exceeds end of read data\n");
|
487 | d9654a58 | Kevin Wolf | return 0; |
488 | d9654a58 | Kevin Wolf | } |
489 | d9654a58 | Kevin Wolf | |
490 | 5afc8b3d | Devin Nakamura | if (!pflag) {
|
491 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
492 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
493 | 43642b38 | Devin Nakamura | offset); |
494 | 43642b38 | Devin Nakamura | return 0; |
495 | 43642b38 | Devin Nakamura | } |
496 | 43642b38 | Devin Nakamura | if (count & 0x1ff) { |
497 | 43642b38 | Devin Nakamura | printf("count %d is not sector aligned\n",
|
498 | 43642b38 | Devin Nakamura | count); |
499 | 43642b38 | Devin Nakamura | return 0; |
500 | 43642b38 | Devin Nakamura | } |
501 | 5afc8b3d | Devin Nakamura | } |
502 | 43642b38 | Devin Nakamura | |
503 | 43642b38 | Devin Nakamura | buf = qemu_io_alloc(count, 0xab);
|
504 | 43642b38 | Devin Nakamura | |
505 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
506 | 43642b38 | Devin Nakamura | if (pflag) {
|
507 | 43642b38 | Devin Nakamura | cnt = do_pread(buf, offset, count, &total); |
508 | 43642b38 | Devin Nakamura | } else if (bflag) { |
509 | 43642b38 | Devin Nakamura | cnt = do_load_vmstate(buf, offset, count, &total); |
510 | 43642b38 | Devin Nakamura | } else {
|
511 | 43642b38 | Devin Nakamura | cnt = do_read(buf, offset, count, &total); |
512 | 43642b38 | Devin Nakamura | } |
513 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
514 | 43642b38 | Devin Nakamura | |
515 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
516 | 43642b38 | Devin Nakamura | printf("read failed: %s\n", strerror(-cnt));
|
517 | 43642b38 | Devin Nakamura | goto out;
|
518 | 43642b38 | Devin Nakamura | } |
519 | 43642b38 | Devin Nakamura | |
520 | 43642b38 | Devin Nakamura | if (Pflag) {
|
521 | 031380d8 | Stefan Hajnoczi | void *cmp_buf = g_malloc(pattern_count);
|
522 | 43642b38 | Devin Nakamura | memset(cmp_buf, pattern, pattern_count); |
523 | 43642b38 | Devin Nakamura | if (memcmp(buf + pattern_offset, cmp_buf, pattern_count)) {
|
524 | 43642b38 | Devin Nakamura | printf("Pattern verification failed at offset %"
|
525 | 43642b38 | Devin Nakamura | PRId64 ", %d bytes\n",
|
526 | 43642b38 | Devin Nakamura | offset + pattern_offset, pattern_count); |
527 | 43642b38 | Devin Nakamura | } |
528 | 031380d8 | Stefan Hajnoczi | g_free(cmp_buf); |
529 | 43642b38 | Devin Nakamura | } |
530 | 43642b38 | Devin Nakamura | |
531 | 43642b38 | Devin Nakamura | if (qflag) {
|
532 | 43642b38 | Devin Nakamura | goto out;
|
533 | 43642b38 | Devin Nakamura | } |
534 | 43642b38 | Devin Nakamura | |
535 | 43642b38 | Devin Nakamura | if (vflag) {
|
536 | 43642b38 | Devin Nakamura | dump_buffer(buf, offset, count); |
537 | 43642b38 | Devin Nakamura | } |
538 | 43642b38 | Devin Nakamura | |
539 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
540 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
541 | 43642b38 | Devin Nakamura | print_report("read", &t2, offset, count, total, cnt, Cflag);
|
542 | e3aff4f6 | aliguori | |
543 | 7d8abfcb | Kevin Wolf | out:
|
544 | 43642b38 | Devin Nakamura | qemu_io_free(buf); |
545 | e3aff4f6 | aliguori | |
546 | 43642b38 | Devin Nakamura | return 0; |
547 | e3aff4f6 | aliguori | } |
548 | e3aff4f6 | aliguori | |
549 | 43642b38 | Devin Nakamura | static void readv_help(void) |
550 | e3aff4f6 | aliguori | { |
551 | 43642b38 | Devin Nakamura | printf( |
552 | e3aff4f6 | aliguori | "\n"
|
553 | e3aff4f6 | aliguori | " reads a range of bytes from the given offset into multiple buffers\n"
|
554 | e3aff4f6 | aliguori | "\n"
|
555 | e3aff4f6 | aliguori | " Example:\n"
|
556 | e3aff4f6 | aliguori | " 'readv -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
|
557 | e3aff4f6 | aliguori | "\n"
|
558 | e3aff4f6 | aliguori | " Reads a segment of the currently open file, optionally dumping it to the\n"
|
559 | e3aff4f6 | aliguori | " standard output stream (with -v option) for subsequent inspection.\n"
|
560 | e3aff4f6 | aliguori | " Uses multiple iovec buffers if more than one byte range is specified.\n"
|
561 | e3aff4f6 | aliguori | " -C, -- report statistics in a machine parsable format\n"
|
562 | c48101ae | aliguori | " -P, -- use a pattern to verify read data\n"
|
563 | e3aff4f6 | aliguori | " -v, -- dump buffer to standard output\n"
|
564 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
565 | e3aff4f6 | aliguori | "\n");
|
566 | e3aff4f6 | aliguori | } |
567 | e3aff4f6 | aliguori | |
568 | 22a2bdcb | Blue Swirl | static int readv_f(int argc, char **argv); |
569 | 22a2bdcb | Blue Swirl | |
570 | 22a2bdcb | Blue Swirl | static const cmdinfo_t readv_cmd = { |
571 | 43642b38 | Devin Nakamura | .name = "readv",
|
572 | 43642b38 | Devin Nakamura | .cfunc = readv_f, |
573 | 43642b38 | Devin Nakamura | .argmin = 2,
|
574 | 43642b38 | Devin Nakamura | .argmax = -1,
|
575 | 43642b38 | Devin Nakamura | .args = "[-Cqv] [-P pattern ] off len [len..]",
|
576 | 43642b38 | Devin Nakamura | .oneline = "reads a number of bytes at a specified offset",
|
577 | 43642b38 | Devin Nakamura | .help = readv_help, |
578 | 22a2bdcb | Blue Swirl | }; |
579 | 22a2bdcb | Blue Swirl | |
580 | 43642b38 | Devin Nakamura | static int readv_f(int argc, char **argv) |
581 | e3aff4f6 | aliguori | { |
582 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
583 | 43642b38 | Devin Nakamura | int Cflag = 0, qflag = 0, vflag = 0; |
584 | 43642b38 | Devin Nakamura | int c, cnt;
|
585 | 43642b38 | Devin Nakamura | char *buf;
|
586 | 43642b38 | Devin Nakamura | int64_t offset; |
587 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
588 | 43642b38 | Devin Nakamura | int total = 0; |
589 | 43642b38 | Devin Nakamura | int nr_iov;
|
590 | 43642b38 | Devin Nakamura | QEMUIOVector qiov; |
591 | 43642b38 | Devin Nakamura | int pattern = 0; |
592 | 43642b38 | Devin Nakamura | int Pflag = 0; |
593 | 43642b38 | Devin Nakamura | |
594 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
595 | 43642b38 | Devin Nakamura | switch (c) {
|
596 | 43642b38 | Devin Nakamura | case 'C': |
597 | 43642b38 | Devin Nakamura | Cflag = 1;
|
598 | 43642b38 | Devin Nakamura | break;
|
599 | 43642b38 | Devin Nakamura | case 'P': |
600 | 43642b38 | Devin Nakamura | Pflag = 1;
|
601 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
602 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
603 | 43642b38 | Devin Nakamura | return 0; |
604 | 43642b38 | Devin Nakamura | } |
605 | 43642b38 | Devin Nakamura | break;
|
606 | 43642b38 | Devin Nakamura | case 'q': |
607 | 43642b38 | Devin Nakamura | qflag = 1;
|
608 | 43642b38 | Devin Nakamura | break;
|
609 | 43642b38 | Devin Nakamura | case 'v': |
610 | 43642b38 | Devin Nakamura | vflag = 1;
|
611 | 43642b38 | Devin Nakamura | break;
|
612 | 43642b38 | Devin Nakamura | default:
|
613 | 43642b38 | Devin Nakamura | return command_usage(&readv_cmd);
|
614 | 43642b38 | Devin Nakamura | } |
615 | 43642b38 | Devin Nakamura | } |
616 | 43642b38 | Devin Nakamura | |
617 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
618 | 43642b38 | Devin Nakamura | return command_usage(&readv_cmd);
|
619 | 43642b38 | Devin Nakamura | } |
620 | 43642b38 | Devin Nakamura | |
621 | 43642b38 | Devin Nakamura | |
622 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
623 | 43642b38 | Devin Nakamura | if (offset < 0) { |
624 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
625 | 43642b38 | Devin Nakamura | return 0; |
626 | 43642b38 | Devin Nakamura | } |
627 | 43642b38 | Devin Nakamura | optind++; |
628 | 43642b38 | Devin Nakamura | |
629 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
630 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
631 | 43642b38 | Devin Nakamura | offset); |
632 | 43642b38 | Devin Nakamura | return 0; |
633 | 43642b38 | Devin Nakamura | } |
634 | 43642b38 | Devin Nakamura | |
635 | 43642b38 | Devin Nakamura | nr_iov = argc - optind; |
636 | 43642b38 | Devin Nakamura | buf = create_iovec(&qiov, &argv[optind], nr_iov, 0xab);
|
637 | f2360620 | Kevin Wolf | if (buf == NULL) { |
638 | f2360620 | Kevin Wolf | return 0; |
639 | f2360620 | Kevin Wolf | } |
640 | 43642b38 | Devin Nakamura | |
641 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
642 | 43642b38 | Devin Nakamura | cnt = do_aio_readv(&qiov, offset, &total); |
643 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
644 | 43642b38 | Devin Nakamura | |
645 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
646 | 43642b38 | Devin Nakamura | printf("readv failed: %s\n", strerror(-cnt));
|
647 | 43642b38 | Devin Nakamura | goto out;
|
648 | 43642b38 | Devin Nakamura | } |
649 | 43642b38 | Devin Nakamura | |
650 | 43642b38 | Devin Nakamura | if (Pflag) {
|
651 | 031380d8 | Stefan Hajnoczi | void *cmp_buf = g_malloc(qiov.size);
|
652 | 43642b38 | Devin Nakamura | memset(cmp_buf, pattern, qiov.size); |
653 | 43642b38 | Devin Nakamura | if (memcmp(buf, cmp_buf, qiov.size)) {
|
654 | 43642b38 | Devin Nakamura | printf("Pattern verification failed at offset %"
|
655 | 43642b38 | Devin Nakamura | PRId64 ", %zd bytes\n", offset, qiov.size);
|
656 | 43642b38 | Devin Nakamura | } |
657 | 031380d8 | Stefan Hajnoczi | g_free(cmp_buf); |
658 | 43642b38 | Devin Nakamura | } |
659 | 43642b38 | Devin Nakamura | |
660 | 43642b38 | Devin Nakamura | if (qflag) {
|
661 | 43642b38 | Devin Nakamura | goto out;
|
662 | 43642b38 | Devin Nakamura | } |
663 | 43642b38 | Devin Nakamura | |
664 | 43642b38 | Devin Nakamura | if (vflag) {
|
665 | 43642b38 | Devin Nakamura | dump_buffer(buf, offset, qiov.size); |
666 | 43642b38 | Devin Nakamura | } |
667 | 43642b38 | Devin Nakamura | |
668 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
669 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
670 | 43642b38 | Devin Nakamura | print_report("read", &t2, offset, qiov.size, total, cnt, Cflag);
|
671 | e3aff4f6 | aliguori | |
672 | 7d8abfcb | Kevin Wolf | out:
|
673 | 43642b38 | Devin Nakamura | qemu_io_free(buf); |
674 | 43642b38 | Devin Nakamura | return 0; |
675 | e3aff4f6 | aliguori | } |
676 | e3aff4f6 | aliguori | |
677 | 43642b38 | Devin Nakamura | static void write_help(void) |
678 | e3aff4f6 | aliguori | { |
679 | 43642b38 | Devin Nakamura | printf( |
680 | e3aff4f6 | aliguori | "\n"
|
681 | e3aff4f6 | aliguori | " writes a range of bytes from the given offset\n"
|
682 | e3aff4f6 | aliguori | "\n"
|
683 | e3aff4f6 | aliguori | " Example:\n"
|
684 | e3aff4f6 | aliguori | " 'write 512 1k' - writes 1 kilobyte at 512 bytes into the open file\n"
|
685 | e3aff4f6 | aliguori | "\n"
|
686 | e3aff4f6 | aliguori | " Writes into a segment of the currently open file, using a buffer\n"
|
687 | e3aff4f6 | aliguori | " filled with a set pattern (0xcdcdcdcd).\n"
|
688 | ca94dbc7 | Kevin Wolf | " -b, -- write to the VM state rather than the virtual disk\n"
|
689 | e3aff4f6 | aliguori | " -p, -- use bdrv_pwrite to write the file\n"
|
690 | e3aff4f6 | aliguori | " -P, -- use different pattern to fill file\n"
|
691 | e3aff4f6 | aliguori | " -C, -- report statistics in a machine parsable format\n"
|
692 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
693 | 71b58b82 | Stefan Hajnoczi | " -z, -- write zeroes using bdrv_co_write_zeroes\n"
|
694 | e3aff4f6 | aliguori | "\n");
|
695 | e3aff4f6 | aliguori | } |
696 | e3aff4f6 | aliguori | |
697 | 22a2bdcb | Blue Swirl | static int write_f(int argc, char **argv); |
698 | 22a2bdcb | Blue Swirl | |
699 | 22a2bdcb | Blue Swirl | static const cmdinfo_t write_cmd = { |
700 | 43642b38 | Devin Nakamura | .name = "write",
|
701 | 43642b38 | Devin Nakamura | .altname = "w",
|
702 | 43642b38 | Devin Nakamura | .cfunc = write_f, |
703 | 43642b38 | Devin Nakamura | .argmin = 2,
|
704 | 43642b38 | Devin Nakamura | .argmax = -1,
|
705 | 71b58b82 | Stefan Hajnoczi | .args = "[-bCpqz] [-P pattern ] off len",
|
706 | 43642b38 | Devin Nakamura | .oneline = "writes a number of bytes at a specified offset",
|
707 | 43642b38 | Devin Nakamura | .help = write_help, |
708 | 22a2bdcb | Blue Swirl | }; |
709 | 22a2bdcb | Blue Swirl | |
710 | 43642b38 | Devin Nakamura | static int write_f(int argc, char **argv) |
711 | e3aff4f6 | aliguori | { |
712 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
713 | 71b58b82 | Stefan Hajnoczi | int Cflag = 0, pflag = 0, qflag = 0, bflag = 0, Pflag = 0, zflag = 0; |
714 | 43642b38 | Devin Nakamura | int c, cnt;
|
715 | 71b58b82 | Stefan Hajnoczi | char *buf = NULL; |
716 | 43642b38 | Devin Nakamura | int64_t offset; |
717 | 43642b38 | Devin Nakamura | int count;
|
718 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
719 | 43642b38 | Devin Nakamura | int total = 0; |
720 | 43642b38 | Devin Nakamura | int pattern = 0xcd; |
721 | 43642b38 | Devin Nakamura | |
722 | 71b58b82 | Stefan Hajnoczi | while ((c = getopt(argc, argv, "bCpP:qz")) != EOF) { |
723 | 43642b38 | Devin Nakamura | switch (c) {
|
724 | 43642b38 | Devin Nakamura | case 'b': |
725 | 43642b38 | Devin Nakamura | bflag = 1;
|
726 | 43642b38 | Devin Nakamura | break;
|
727 | 43642b38 | Devin Nakamura | case 'C': |
728 | 43642b38 | Devin Nakamura | Cflag = 1;
|
729 | 43642b38 | Devin Nakamura | break;
|
730 | 43642b38 | Devin Nakamura | case 'p': |
731 | 43642b38 | Devin Nakamura | pflag = 1;
|
732 | 43642b38 | Devin Nakamura | break;
|
733 | 43642b38 | Devin Nakamura | case 'P': |
734 | 71b58b82 | Stefan Hajnoczi | Pflag = 1;
|
735 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
736 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
737 | 43642b38 | Devin Nakamura | return 0; |
738 | 43642b38 | Devin Nakamura | } |
739 | 43642b38 | Devin Nakamura | break;
|
740 | 43642b38 | Devin Nakamura | case 'q': |
741 | 43642b38 | Devin Nakamura | qflag = 1;
|
742 | 43642b38 | Devin Nakamura | break;
|
743 | 71b58b82 | Stefan Hajnoczi | case 'z': |
744 | 71b58b82 | Stefan Hajnoczi | zflag = 1;
|
745 | 71b58b82 | Stefan Hajnoczi | break;
|
746 | 43642b38 | Devin Nakamura | default:
|
747 | 43642b38 | Devin Nakamura | return command_usage(&write_cmd);
|
748 | 43642b38 | Devin Nakamura | } |
749 | 43642b38 | Devin Nakamura | } |
750 | 43642b38 | Devin Nakamura | |
751 | 43642b38 | Devin Nakamura | if (optind != argc - 2) { |
752 | 43642b38 | Devin Nakamura | return command_usage(&write_cmd);
|
753 | 43642b38 | Devin Nakamura | } |
754 | 43642b38 | Devin Nakamura | |
755 | 71b58b82 | Stefan Hajnoczi | if (bflag + pflag + zflag > 1) { |
756 | 71b58b82 | Stefan Hajnoczi | printf("-b, -p, or -z cannot be specified at the same time\n");
|
757 | 71b58b82 | Stefan Hajnoczi | return 0; |
758 | 71b58b82 | Stefan Hajnoczi | } |
759 | 71b58b82 | Stefan Hajnoczi | |
760 | 71b58b82 | Stefan Hajnoczi | if (zflag && Pflag) {
|
761 | 71b58b82 | Stefan Hajnoczi | printf("-z and -P cannot be specified at the same time\n");
|
762 | 43642b38 | Devin Nakamura | return 0; |
763 | 43642b38 | Devin Nakamura | } |
764 | 43642b38 | Devin Nakamura | |
765 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
766 | 43642b38 | Devin Nakamura | if (offset < 0) { |
767 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
768 | 43642b38 | Devin Nakamura | return 0; |
769 | 43642b38 | Devin Nakamura | } |
770 | 43642b38 | Devin Nakamura | |
771 | 43642b38 | Devin Nakamura | optind++; |
772 | 43642b38 | Devin Nakamura | count = cvtnum(argv[optind]); |
773 | 43642b38 | Devin Nakamura | if (count < 0) { |
774 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
775 | 43642b38 | Devin Nakamura | return 0; |
776 | 43642b38 | Devin Nakamura | } |
777 | 43642b38 | Devin Nakamura | |
778 | 43642b38 | Devin Nakamura | if (!pflag) {
|
779 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
780 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
781 | 43642b38 | Devin Nakamura | offset); |
782 | 43642b38 | Devin Nakamura | return 0; |
783 | 43642b38 | Devin Nakamura | } |
784 | 43642b38 | Devin Nakamura | |
785 | 43642b38 | Devin Nakamura | if (count & 0x1ff) { |
786 | 43642b38 | Devin Nakamura | printf("count %d is not sector aligned\n",
|
787 | 43642b38 | Devin Nakamura | count); |
788 | 43642b38 | Devin Nakamura | return 0; |
789 | 43642b38 | Devin Nakamura | } |
790 | 43642b38 | Devin Nakamura | } |
791 | 43642b38 | Devin Nakamura | |
792 | 71b58b82 | Stefan Hajnoczi | if (!zflag) {
|
793 | 71b58b82 | Stefan Hajnoczi | buf = qemu_io_alloc(count, pattern); |
794 | 71b58b82 | Stefan Hajnoczi | } |
795 | 43642b38 | Devin Nakamura | |
796 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
797 | 43642b38 | Devin Nakamura | if (pflag) {
|
798 | 43642b38 | Devin Nakamura | cnt = do_pwrite(buf, offset, count, &total); |
799 | 43642b38 | Devin Nakamura | } else if (bflag) { |
800 | 43642b38 | Devin Nakamura | cnt = do_save_vmstate(buf, offset, count, &total); |
801 | 71b58b82 | Stefan Hajnoczi | } else if (zflag) { |
802 | 71b58b82 | Stefan Hajnoczi | cnt = do_co_write_zeroes(offset, count, &total); |
803 | 43642b38 | Devin Nakamura | } else {
|
804 | 43642b38 | Devin Nakamura | cnt = do_write(buf, offset, count, &total); |
805 | 43642b38 | Devin Nakamura | } |
806 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
807 | 43642b38 | Devin Nakamura | |
808 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
809 | 43642b38 | Devin Nakamura | printf("write failed: %s\n", strerror(-cnt));
|
810 | 43642b38 | Devin Nakamura | goto out;
|
811 | 43642b38 | Devin Nakamura | } |
812 | 43642b38 | Devin Nakamura | |
813 | 43642b38 | Devin Nakamura | if (qflag) {
|
814 | 43642b38 | Devin Nakamura | goto out;
|
815 | 43642b38 | Devin Nakamura | } |
816 | 43642b38 | Devin Nakamura | |
817 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
818 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
819 | 43642b38 | Devin Nakamura | print_report("wrote", &t2, offset, count, total, cnt, Cflag);
|
820 | e3aff4f6 | aliguori | |
821 | 7d8abfcb | Kevin Wolf | out:
|
822 | 71b58b82 | Stefan Hajnoczi | if (!zflag) {
|
823 | 71b58b82 | Stefan Hajnoczi | qemu_io_free(buf); |
824 | 71b58b82 | Stefan Hajnoczi | } |
825 | e3aff4f6 | aliguori | |
826 | 43642b38 | Devin Nakamura | return 0; |
827 | e3aff4f6 | aliguori | } |
828 | e3aff4f6 | aliguori | |
829 | e3aff4f6 | aliguori | static void |
830 | e3aff4f6 | aliguori | writev_help(void)
|
831 | e3aff4f6 | aliguori | { |
832 | 43642b38 | Devin Nakamura | printf( |
833 | e3aff4f6 | aliguori | "\n"
|
834 | e3aff4f6 | aliguori | " writes a range of bytes from the given offset source from multiple buffers\n"
|
835 | e3aff4f6 | aliguori | "\n"
|
836 | e3aff4f6 | aliguori | " Example:\n"
|
837 | e3aff4f6 | aliguori | " 'write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
|
838 | e3aff4f6 | aliguori | "\n"
|
839 | e3aff4f6 | aliguori | " Writes into a segment of the currently open file, using a buffer\n"
|
840 | e3aff4f6 | aliguori | " filled with a set pattern (0xcdcdcdcd).\n"
|
841 | e3aff4f6 | aliguori | " -P, -- use different pattern to fill file\n"
|
842 | e3aff4f6 | aliguori | " -C, -- report statistics in a machine parsable format\n"
|
843 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
844 | e3aff4f6 | aliguori | "\n");
|
845 | e3aff4f6 | aliguori | } |
846 | e3aff4f6 | aliguori | |
847 | 22a2bdcb | Blue Swirl | static int writev_f(int argc, char **argv); |
848 | 22a2bdcb | Blue Swirl | |
849 | 22a2bdcb | Blue Swirl | static const cmdinfo_t writev_cmd = { |
850 | 43642b38 | Devin Nakamura | .name = "writev",
|
851 | 43642b38 | Devin Nakamura | .cfunc = writev_f, |
852 | 43642b38 | Devin Nakamura | .argmin = 2,
|
853 | 43642b38 | Devin Nakamura | .argmax = -1,
|
854 | 43642b38 | Devin Nakamura | .args = "[-Cq] [-P pattern ] off len [len..]",
|
855 | 43642b38 | Devin Nakamura | .oneline = "writes a number of bytes at a specified offset",
|
856 | 43642b38 | Devin Nakamura | .help = writev_help, |
857 | 22a2bdcb | Blue Swirl | }; |
858 | 22a2bdcb | Blue Swirl | |
859 | 43642b38 | Devin Nakamura | static int writev_f(int argc, char **argv) |
860 | e3aff4f6 | aliguori | { |
861 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
862 | 43642b38 | Devin Nakamura | int Cflag = 0, qflag = 0; |
863 | 43642b38 | Devin Nakamura | int c, cnt;
|
864 | 43642b38 | Devin Nakamura | char *buf;
|
865 | 43642b38 | Devin Nakamura | int64_t offset; |
866 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
867 | 43642b38 | Devin Nakamura | int total = 0; |
868 | 43642b38 | Devin Nakamura | int nr_iov;
|
869 | 43642b38 | Devin Nakamura | int pattern = 0xcd; |
870 | 43642b38 | Devin Nakamura | QEMUIOVector qiov; |
871 | 43642b38 | Devin Nakamura | |
872 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
873 | 43642b38 | Devin Nakamura | switch (c) {
|
874 | 43642b38 | Devin Nakamura | case 'C': |
875 | 43642b38 | Devin Nakamura | Cflag = 1;
|
876 | 43642b38 | Devin Nakamura | break;
|
877 | 43642b38 | Devin Nakamura | case 'q': |
878 | 43642b38 | Devin Nakamura | qflag = 1;
|
879 | 43642b38 | Devin Nakamura | break;
|
880 | 43642b38 | Devin Nakamura | case 'P': |
881 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
882 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
883 | 43642b38 | Devin Nakamura | return 0; |
884 | 43642b38 | Devin Nakamura | } |
885 | 43642b38 | Devin Nakamura | break;
|
886 | 43642b38 | Devin Nakamura | default:
|
887 | 43642b38 | Devin Nakamura | return command_usage(&writev_cmd);
|
888 | 43642b38 | Devin Nakamura | } |
889 | 43642b38 | Devin Nakamura | } |
890 | 43642b38 | Devin Nakamura | |
891 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
892 | 43642b38 | Devin Nakamura | return command_usage(&writev_cmd);
|
893 | 43642b38 | Devin Nakamura | } |
894 | 43642b38 | Devin Nakamura | |
895 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
896 | 43642b38 | Devin Nakamura | if (offset < 0) { |
897 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
898 | 43642b38 | Devin Nakamura | return 0; |
899 | 43642b38 | Devin Nakamura | } |
900 | 43642b38 | Devin Nakamura | optind++; |
901 | 43642b38 | Devin Nakamura | |
902 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
903 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
904 | 43642b38 | Devin Nakamura | offset); |
905 | 43642b38 | Devin Nakamura | return 0; |
906 | 43642b38 | Devin Nakamura | } |
907 | 43642b38 | Devin Nakamura | |
908 | 43642b38 | Devin Nakamura | nr_iov = argc - optind; |
909 | 43642b38 | Devin Nakamura | buf = create_iovec(&qiov, &argv[optind], nr_iov, pattern); |
910 | f2360620 | Kevin Wolf | if (buf == NULL) { |
911 | f2360620 | Kevin Wolf | return 0; |
912 | f2360620 | Kevin Wolf | } |
913 | 43642b38 | Devin Nakamura | |
914 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
915 | 43642b38 | Devin Nakamura | cnt = do_aio_writev(&qiov, offset, &total); |
916 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
917 | 43642b38 | Devin Nakamura | |
918 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
919 | 43642b38 | Devin Nakamura | printf("writev failed: %s\n", strerror(-cnt));
|
920 | 43642b38 | Devin Nakamura | goto out;
|
921 | 43642b38 | Devin Nakamura | } |
922 | 43642b38 | Devin Nakamura | |
923 | 43642b38 | Devin Nakamura | if (qflag) {
|
924 | 43642b38 | Devin Nakamura | goto out;
|
925 | 43642b38 | Devin Nakamura | } |
926 | 43642b38 | Devin Nakamura | |
927 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
928 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
929 | 43642b38 | Devin Nakamura | print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag);
|
930 | 7d8abfcb | Kevin Wolf | out:
|
931 | 43642b38 | Devin Nakamura | qemu_io_free(buf); |
932 | 43642b38 | Devin Nakamura | return 0; |
933 | e3aff4f6 | aliguori | } |
934 | e3aff4f6 | aliguori | |
935 | 43642b38 | Devin Nakamura | static void multiwrite_help(void) |
936 | 776cbbbd | Kevin Wolf | { |
937 | 43642b38 | Devin Nakamura | printf( |
938 | 776cbbbd | Kevin Wolf | "\n"
|
939 | 776cbbbd | Kevin Wolf | " writes a range of bytes from the given offset source from multiple buffers,\n"
|
940 | 776cbbbd | Kevin Wolf | " in a batch of requests that may be merged by qemu\n"
|
941 | 776cbbbd | Kevin Wolf | "\n"
|
942 | 776cbbbd | Kevin Wolf | " Example:\n"
|
943 | b2bedb21 | Stefan Weil | " 'multiwrite 512 1k 1k ; 4k 1k'\n"
|
944 | 776cbbbd | Kevin Wolf | " writes 2 kB at 512 bytes and 1 kB at 4 kB into the open file\n"
|
945 | 776cbbbd | Kevin Wolf | "\n"
|
946 | 776cbbbd | Kevin Wolf | " Writes into a segment of the currently open file, using a buffer\n"
|
947 | 776cbbbd | Kevin Wolf | " filled with a set pattern (0xcdcdcdcd). The pattern byte is increased\n"
|
948 | 776cbbbd | Kevin Wolf | " by one for each request contained in the multiwrite command.\n"
|
949 | 776cbbbd | Kevin Wolf | " -P, -- use different pattern to fill file\n"
|
950 | 776cbbbd | Kevin Wolf | " -C, -- report statistics in a machine parsable format\n"
|
951 | 776cbbbd | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
952 | 776cbbbd | Kevin Wolf | "\n");
|
953 | 776cbbbd | Kevin Wolf | } |
954 | 776cbbbd | Kevin Wolf | |
955 | 776cbbbd | Kevin Wolf | static int multiwrite_f(int argc, char **argv); |
956 | 776cbbbd | Kevin Wolf | |
957 | 776cbbbd | Kevin Wolf | static const cmdinfo_t multiwrite_cmd = { |
958 | 43642b38 | Devin Nakamura | .name = "multiwrite",
|
959 | 43642b38 | Devin Nakamura | .cfunc = multiwrite_f, |
960 | 43642b38 | Devin Nakamura | .argmin = 2,
|
961 | 43642b38 | Devin Nakamura | .argmax = -1,
|
962 | 43642b38 | Devin Nakamura | .args = "[-Cq] [-P pattern ] off len [len..] [; off len [len..]..]",
|
963 | 43642b38 | Devin Nakamura | .oneline = "issues multiple write requests at once",
|
964 | 43642b38 | Devin Nakamura | .help = multiwrite_help, |
965 | 776cbbbd | Kevin Wolf | }; |
966 | 776cbbbd | Kevin Wolf | |
967 | 43642b38 | Devin Nakamura | static int multiwrite_f(int argc, char **argv) |
968 | 776cbbbd | Kevin Wolf | { |
969 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
970 | 43642b38 | Devin Nakamura | int Cflag = 0, qflag = 0; |
971 | 43642b38 | Devin Nakamura | int c, cnt;
|
972 | 43642b38 | Devin Nakamura | char **buf;
|
973 | 43642b38 | Devin Nakamura | int64_t offset, first_offset = 0;
|
974 | 43642b38 | Devin Nakamura | /* Some compilers get confused and warn if this is not initialized. */
|
975 | 43642b38 | Devin Nakamura | int total = 0; |
976 | 43642b38 | Devin Nakamura | int nr_iov;
|
977 | 43642b38 | Devin Nakamura | int nr_reqs;
|
978 | 43642b38 | Devin Nakamura | int pattern = 0xcd; |
979 | 43642b38 | Devin Nakamura | QEMUIOVector *qiovs; |
980 | 43642b38 | Devin Nakamura | int i;
|
981 | 43642b38 | Devin Nakamura | BlockRequest *reqs; |
982 | 43642b38 | Devin Nakamura | |
983 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
984 | 43642b38 | Devin Nakamura | switch (c) {
|
985 | 43642b38 | Devin Nakamura | case 'C': |
986 | 43642b38 | Devin Nakamura | Cflag = 1;
|
987 | 43642b38 | Devin Nakamura | break;
|
988 | 43642b38 | Devin Nakamura | case 'q': |
989 | 43642b38 | Devin Nakamura | qflag = 1;
|
990 | 43642b38 | Devin Nakamura | break;
|
991 | 43642b38 | Devin Nakamura | case 'P': |
992 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
993 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
994 | 43642b38 | Devin Nakamura | return 0; |
995 | 43642b38 | Devin Nakamura | } |
996 | 43642b38 | Devin Nakamura | break;
|
997 | 43642b38 | Devin Nakamura | default:
|
998 | 43642b38 | Devin Nakamura | return command_usage(&writev_cmd);
|
999 | 43642b38 | Devin Nakamura | } |
1000 | 43642b38 | Devin Nakamura | } |
1001 | 43642b38 | Devin Nakamura | |
1002 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
1003 | 43642b38 | Devin Nakamura | return command_usage(&writev_cmd);
|
1004 | 43642b38 | Devin Nakamura | } |
1005 | 43642b38 | Devin Nakamura | |
1006 | 43642b38 | Devin Nakamura | nr_reqs = 1;
|
1007 | 43642b38 | Devin Nakamura | for (i = optind; i < argc; i++) {
|
1008 | 43642b38 | Devin Nakamura | if (!strcmp(argv[i], ";")) { |
1009 | 43642b38 | Devin Nakamura | nr_reqs++; |
1010 | 43642b38 | Devin Nakamura | } |
1011 | 43642b38 | Devin Nakamura | } |
1012 | 43642b38 | Devin Nakamura | |
1013 | f2360620 | Kevin Wolf | reqs = g_malloc0(nr_reqs * sizeof(*reqs));
|
1014 | f2360620 | Kevin Wolf | buf = g_malloc0(nr_reqs * sizeof(*buf));
|
1015 | 7267c094 | Anthony Liguori | qiovs = g_malloc(nr_reqs * sizeof(*qiovs));
|
1016 | 43642b38 | Devin Nakamura | |
1017 | 67403dbb | Kevin Wolf | for (i = 0; i < nr_reqs && optind < argc; i++) { |
1018 | 43642b38 | Devin Nakamura | int j;
|
1019 | 43642b38 | Devin Nakamura | |
1020 | 43642b38 | Devin Nakamura | /* Read the offset of the request */
|
1021 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
1022 | 43642b38 | Devin Nakamura | if (offset < 0) { |
1023 | 43642b38 | Devin Nakamura | printf("non-numeric offset argument -- %s\n", argv[optind]);
|
1024 | 67403dbb | Kevin Wolf | goto out;
|
1025 | 43642b38 | Devin Nakamura | } |
1026 | 43642b38 | Devin Nakamura | optind++; |
1027 | 43642b38 | Devin Nakamura | |
1028 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
1029 | 43642b38 | Devin Nakamura | printf("offset %lld is not sector aligned\n",
|
1030 | 43642b38 | Devin Nakamura | (long long)offset); |
1031 | 67403dbb | Kevin Wolf | goto out;
|
1032 | 43642b38 | Devin Nakamura | } |
1033 | 776cbbbd | Kevin Wolf | |
1034 | 776cbbbd | Kevin Wolf | if (i == 0) { |
1035 | 776cbbbd | Kevin Wolf | first_offset = offset; |
1036 | 776cbbbd | Kevin Wolf | } |
1037 | 776cbbbd | Kevin Wolf | |
1038 | 43642b38 | Devin Nakamura | /* Read lengths for qiov entries */
|
1039 | 43642b38 | Devin Nakamura | for (j = optind; j < argc; j++) {
|
1040 | 43642b38 | Devin Nakamura | if (!strcmp(argv[j], ";")) { |
1041 | 43642b38 | Devin Nakamura | break;
|
1042 | 43642b38 | Devin Nakamura | } |
1043 | 43642b38 | Devin Nakamura | } |
1044 | 776cbbbd | Kevin Wolf | |
1045 | 43642b38 | Devin Nakamura | nr_iov = j - optind; |
1046 | 776cbbbd | Kevin Wolf | |
1047 | 43642b38 | Devin Nakamura | /* Build request */
|
1048 | f2360620 | Kevin Wolf | buf[i] = create_iovec(&qiovs[i], &argv[optind], nr_iov, pattern); |
1049 | f2360620 | Kevin Wolf | if (buf[i] == NULL) { |
1050 | f2360620 | Kevin Wolf | goto out;
|
1051 | f2360620 | Kevin Wolf | } |
1052 | f2360620 | Kevin Wolf | |
1053 | 43642b38 | Devin Nakamura | reqs[i].qiov = &qiovs[i]; |
1054 | 43642b38 | Devin Nakamura | reqs[i].sector = offset >> 9;
|
1055 | 43642b38 | Devin Nakamura | reqs[i].nb_sectors = reqs[i].qiov->size >> 9;
|
1056 | 776cbbbd | Kevin Wolf | |
1057 | 43642b38 | Devin Nakamura | optind = j + 1;
|
1058 | 776cbbbd | Kevin Wolf | |
1059 | 43642b38 | Devin Nakamura | pattern++; |
1060 | 43642b38 | Devin Nakamura | } |
1061 | 776cbbbd | Kevin Wolf | |
1062 | 67403dbb | Kevin Wolf | /* If there were empty requests at the end, ignore them */
|
1063 | 67403dbb | Kevin Wolf | nr_reqs = i; |
1064 | 67403dbb | Kevin Wolf | |
1065 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
1066 | 43642b38 | Devin Nakamura | cnt = do_aio_multiwrite(reqs, nr_reqs, &total); |
1067 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
1068 | 776cbbbd | Kevin Wolf | |
1069 | 43642b38 | Devin Nakamura | if (cnt < 0) { |
1070 | 43642b38 | Devin Nakamura | printf("aio_multiwrite failed: %s\n", strerror(-cnt));
|
1071 | 43642b38 | Devin Nakamura | goto out;
|
1072 | 43642b38 | Devin Nakamura | } |
1073 | 776cbbbd | Kevin Wolf | |
1074 | 43642b38 | Devin Nakamura | if (qflag) {
|
1075 | 43642b38 | Devin Nakamura | goto out;
|
1076 | 43642b38 | Devin Nakamura | } |
1077 | 776cbbbd | Kevin Wolf | |
1078 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
1079 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
1080 | 43642b38 | Devin Nakamura | print_report("wrote", &t2, first_offset, total, total, cnt, Cflag);
|
1081 | 776cbbbd | Kevin Wolf | out:
|
1082 | 43642b38 | Devin Nakamura | for (i = 0; i < nr_reqs; i++) { |
1083 | 43642b38 | Devin Nakamura | qemu_io_free(buf[i]); |
1084 | f2360620 | Kevin Wolf | if (reqs[i].qiov != NULL) { |
1085 | f2360620 | Kevin Wolf | qemu_iovec_destroy(&qiovs[i]); |
1086 | f2360620 | Kevin Wolf | } |
1087 | 43642b38 | Devin Nakamura | } |
1088 | 7267c094 | Anthony Liguori | g_free(buf); |
1089 | 7267c094 | Anthony Liguori | g_free(reqs); |
1090 | 7267c094 | Anthony Liguori | g_free(qiovs); |
1091 | 43642b38 | Devin Nakamura | return 0; |
1092 | 776cbbbd | Kevin Wolf | } |
1093 | 776cbbbd | Kevin Wolf | |
1094 | 95533d5f | Christoph Hellwig | struct aio_ctx {
|
1095 | 43642b38 | Devin Nakamura | QEMUIOVector qiov; |
1096 | 43642b38 | Devin Nakamura | int64_t offset; |
1097 | 43642b38 | Devin Nakamura | char *buf;
|
1098 | 43642b38 | Devin Nakamura | int qflag;
|
1099 | 43642b38 | Devin Nakamura | int vflag;
|
1100 | 43642b38 | Devin Nakamura | int Cflag;
|
1101 | 43642b38 | Devin Nakamura | int Pflag;
|
1102 | 43642b38 | Devin Nakamura | int pattern;
|
1103 | 43642b38 | Devin Nakamura | struct timeval t1;
|
1104 | 95533d5f | Christoph Hellwig | }; |
1105 | 95533d5f | Christoph Hellwig | |
1106 | 43642b38 | Devin Nakamura | static void aio_write_done(void *opaque, int ret) |
1107 | 95533d5f | Christoph Hellwig | { |
1108 | 43642b38 | Devin Nakamura | struct aio_ctx *ctx = opaque;
|
1109 | 43642b38 | Devin Nakamura | struct timeval t2;
|
1110 | 95533d5f | Christoph Hellwig | |
1111 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
1112 | 95533d5f | Christoph Hellwig | |
1113 | 95533d5f | Christoph Hellwig | |
1114 | 43642b38 | Devin Nakamura | if (ret < 0) { |
1115 | 43642b38 | Devin Nakamura | printf("aio_write failed: %s\n", strerror(-ret));
|
1116 | 43642b38 | Devin Nakamura | goto out;
|
1117 | 43642b38 | Devin Nakamura | } |
1118 | 95533d5f | Christoph Hellwig | |
1119 | 43642b38 | Devin Nakamura | if (ctx->qflag) {
|
1120 | 43642b38 | Devin Nakamura | goto out;
|
1121 | 43642b38 | Devin Nakamura | } |
1122 | 95533d5f | Christoph Hellwig | |
1123 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
1124 | 43642b38 | Devin Nakamura | t2 = tsub(t2, ctx->t1); |
1125 | 43642b38 | Devin Nakamura | print_report("wrote", &t2, ctx->offset, ctx->qiov.size,
|
1126 | 43642b38 | Devin Nakamura | ctx->qiov.size, 1, ctx->Cflag);
|
1127 | 7d8abfcb | Kevin Wolf | out:
|
1128 | 43642b38 | Devin Nakamura | qemu_io_free(ctx->buf); |
1129 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1130 | 95533d5f | Christoph Hellwig | } |
1131 | 95533d5f | Christoph Hellwig | |
1132 | 43642b38 | Devin Nakamura | static void aio_read_done(void *opaque, int ret) |
1133 | 95533d5f | Christoph Hellwig | { |
1134 | 43642b38 | Devin Nakamura | struct aio_ctx *ctx = opaque;
|
1135 | 43642b38 | Devin Nakamura | struct timeval t2;
|
1136 | 43642b38 | Devin Nakamura | |
1137 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
1138 | 43642b38 | Devin Nakamura | |
1139 | 43642b38 | Devin Nakamura | if (ret < 0) { |
1140 | 43642b38 | Devin Nakamura | printf("readv failed: %s\n", strerror(-ret));
|
1141 | 43642b38 | Devin Nakamura | goto out;
|
1142 | 43642b38 | Devin Nakamura | } |
1143 | 43642b38 | Devin Nakamura | |
1144 | 43642b38 | Devin Nakamura | if (ctx->Pflag) {
|
1145 | 031380d8 | Stefan Hajnoczi | void *cmp_buf = g_malloc(ctx->qiov.size);
|
1146 | 43642b38 | Devin Nakamura | |
1147 | 43642b38 | Devin Nakamura | memset(cmp_buf, ctx->pattern, ctx->qiov.size); |
1148 | 43642b38 | Devin Nakamura | if (memcmp(ctx->buf, cmp_buf, ctx->qiov.size)) {
|
1149 | 43642b38 | Devin Nakamura | printf("Pattern verification failed at offset %"
|
1150 | 43642b38 | Devin Nakamura | PRId64 ", %zd bytes\n", ctx->offset, ctx->qiov.size);
|
1151 | 43642b38 | Devin Nakamura | } |
1152 | 031380d8 | Stefan Hajnoczi | g_free(cmp_buf); |
1153 | 43642b38 | Devin Nakamura | } |
1154 | 43642b38 | Devin Nakamura | |
1155 | 43642b38 | Devin Nakamura | if (ctx->qflag) {
|
1156 | 43642b38 | Devin Nakamura | goto out;
|
1157 | 43642b38 | Devin Nakamura | } |
1158 | 43642b38 | Devin Nakamura | |
1159 | 43642b38 | Devin Nakamura | if (ctx->vflag) {
|
1160 | 43642b38 | Devin Nakamura | dump_buffer(ctx->buf, ctx->offset, ctx->qiov.size); |
1161 | 43642b38 | Devin Nakamura | } |
1162 | 43642b38 | Devin Nakamura | |
1163 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
1164 | 43642b38 | Devin Nakamura | t2 = tsub(t2, ctx->t1); |
1165 | 43642b38 | Devin Nakamura | print_report("read", &t2, ctx->offset, ctx->qiov.size,
|
1166 | 43642b38 | Devin Nakamura | ctx->qiov.size, 1, ctx->Cflag);
|
1167 | 7d8abfcb | Kevin Wolf | out:
|
1168 | 43642b38 | Devin Nakamura | qemu_io_free(ctx->buf); |
1169 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1170 | 95533d5f | Christoph Hellwig | } |
1171 | 95533d5f | Christoph Hellwig | |
1172 | 43642b38 | Devin Nakamura | static void aio_read_help(void) |
1173 | 95533d5f | Christoph Hellwig | { |
1174 | 43642b38 | Devin Nakamura | printf( |
1175 | 95533d5f | Christoph Hellwig | "\n"
|
1176 | 95533d5f | Christoph Hellwig | " asynchronously reads a range of bytes from the given offset\n"
|
1177 | 95533d5f | Christoph Hellwig | "\n"
|
1178 | 95533d5f | Christoph Hellwig | " Example:\n"
|
1179 | 95533d5f | Christoph Hellwig | " 'aio_read -v 512 1k 1k ' - dumps 2 kilobytes read from 512 bytes into the file\n"
|
1180 | 95533d5f | Christoph Hellwig | "\n"
|
1181 | 95533d5f | Christoph Hellwig | " Reads a segment of the currently open file, optionally dumping it to the\n"
|
1182 | 95533d5f | Christoph Hellwig | " standard output stream (with -v option) for subsequent inspection.\n"
|
1183 | e432cef9 | Christoph Hellwig | " The read is performed asynchronously and the aio_flush command must be\n"
|
1184 | 96bab41d | Laszlo Ersek | " used to ensure all outstanding aio requests have been completed.\n"
|
1185 | 95533d5f | Christoph Hellwig | " -C, -- report statistics in a machine parsable format\n"
|
1186 | 95533d5f | Christoph Hellwig | " -P, -- use a pattern to verify read data\n"
|
1187 | 95533d5f | Christoph Hellwig | " -v, -- dump buffer to standard output\n"
|
1188 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
1189 | 95533d5f | Christoph Hellwig | "\n");
|
1190 | 95533d5f | Christoph Hellwig | } |
1191 | 95533d5f | Christoph Hellwig | |
1192 | 22a2bdcb | Blue Swirl | static int aio_read_f(int argc, char **argv); |
1193 | 22a2bdcb | Blue Swirl | |
1194 | 22a2bdcb | Blue Swirl | static const cmdinfo_t aio_read_cmd = { |
1195 | 43642b38 | Devin Nakamura | .name = "aio_read",
|
1196 | 43642b38 | Devin Nakamura | .cfunc = aio_read_f, |
1197 | 43642b38 | Devin Nakamura | .argmin = 2,
|
1198 | 43642b38 | Devin Nakamura | .argmax = -1,
|
1199 | 43642b38 | Devin Nakamura | .args = "[-Cqv] [-P pattern ] off len [len..]",
|
1200 | 43642b38 | Devin Nakamura | .oneline = "asynchronously reads a number of bytes",
|
1201 | 43642b38 | Devin Nakamura | .help = aio_read_help, |
1202 | 22a2bdcb | Blue Swirl | }; |
1203 | 22a2bdcb | Blue Swirl | |
1204 | 43642b38 | Devin Nakamura | static int aio_read_f(int argc, char **argv) |
1205 | 95533d5f | Christoph Hellwig | { |
1206 | 43642b38 | Devin Nakamura | int nr_iov, c;
|
1207 | 031380d8 | Stefan Hajnoczi | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); |
1208 | 43642b38 | Devin Nakamura | |
1209 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CP:qv")) != EOF) { |
1210 | 43642b38 | Devin Nakamura | switch (c) {
|
1211 | 43642b38 | Devin Nakamura | case 'C': |
1212 | 43642b38 | Devin Nakamura | ctx->Cflag = 1;
|
1213 | 43642b38 | Devin Nakamura | break;
|
1214 | 43642b38 | Devin Nakamura | case 'P': |
1215 | 43642b38 | Devin Nakamura | ctx->Pflag = 1;
|
1216 | 43642b38 | Devin Nakamura | ctx->pattern = parse_pattern(optarg); |
1217 | 43642b38 | Devin Nakamura | if (ctx->pattern < 0) { |
1218 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1219 | 43642b38 | Devin Nakamura | return 0; |
1220 | 43642b38 | Devin Nakamura | } |
1221 | 43642b38 | Devin Nakamura | break;
|
1222 | 43642b38 | Devin Nakamura | case 'q': |
1223 | 43642b38 | Devin Nakamura | ctx->qflag = 1;
|
1224 | 43642b38 | Devin Nakamura | break;
|
1225 | 43642b38 | Devin Nakamura | case 'v': |
1226 | 43642b38 | Devin Nakamura | ctx->vflag = 1;
|
1227 | 43642b38 | Devin Nakamura | break;
|
1228 | 43642b38 | Devin Nakamura | default:
|
1229 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1230 | 43642b38 | Devin Nakamura | return command_usage(&aio_read_cmd);
|
1231 | 43642b38 | Devin Nakamura | } |
1232 | 43642b38 | Devin Nakamura | } |
1233 | 43642b38 | Devin Nakamura | |
1234 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
1235 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1236 | 43642b38 | Devin Nakamura | return command_usage(&aio_read_cmd);
|
1237 | 43642b38 | Devin Nakamura | } |
1238 | 43642b38 | Devin Nakamura | |
1239 | 43642b38 | Devin Nakamura | ctx->offset = cvtnum(argv[optind]); |
1240 | 43642b38 | Devin Nakamura | if (ctx->offset < 0) { |
1241 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
1242 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1243 | 43642b38 | Devin Nakamura | return 0; |
1244 | 43642b38 | Devin Nakamura | } |
1245 | 43642b38 | Devin Nakamura | optind++; |
1246 | 43642b38 | Devin Nakamura | |
1247 | 43642b38 | Devin Nakamura | if (ctx->offset & 0x1ff) { |
1248 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
1249 | 43642b38 | Devin Nakamura | ctx->offset); |
1250 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1251 | 43642b38 | Devin Nakamura | return 0; |
1252 | 43642b38 | Devin Nakamura | } |
1253 | 43642b38 | Devin Nakamura | |
1254 | 43642b38 | Devin Nakamura | nr_iov = argc - optind; |
1255 | 43642b38 | Devin Nakamura | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, 0xab);
|
1256 | f2360620 | Kevin Wolf | if (ctx->buf == NULL) { |
1257 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1258 | f2360620 | Kevin Wolf | return 0; |
1259 | f2360620 | Kevin Wolf | } |
1260 | 43642b38 | Devin Nakamura | |
1261 | 43642b38 | Devin Nakamura | gettimeofday(&ctx->t1, NULL);
|
1262 | ad54ae80 | Paolo Bonzini | bdrv_aio_readv(bs, ctx->offset >> 9, &ctx->qiov,
|
1263 | ad54ae80 | Paolo Bonzini | ctx->qiov.size >> 9, aio_read_done, ctx);
|
1264 | 43642b38 | Devin Nakamura | return 0; |
1265 | 95533d5f | Christoph Hellwig | } |
1266 | 95533d5f | Christoph Hellwig | |
1267 | 43642b38 | Devin Nakamura | static void aio_write_help(void) |
1268 | 95533d5f | Christoph Hellwig | { |
1269 | 43642b38 | Devin Nakamura | printf( |
1270 | 95533d5f | Christoph Hellwig | "\n"
|
1271 | 43642b38 | Devin Nakamura | " asynchronously writes a range of bytes from the given offset source\n"
|
1272 | 95533d5f | Christoph Hellwig | " from multiple buffers\n"
|
1273 | 95533d5f | Christoph Hellwig | "\n"
|
1274 | 95533d5f | Christoph Hellwig | " Example:\n"
|
1275 | 95533d5f | Christoph Hellwig | " 'aio_write 512 1k 1k' - writes 2 kilobytes at 512 bytes into the open file\n"
|
1276 | 95533d5f | Christoph Hellwig | "\n"
|
1277 | 95533d5f | Christoph Hellwig | " Writes into a segment of the currently open file, using a buffer\n"
|
1278 | 95533d5f | Christoph Hellwig | " filled with a set pattern (0xcdcdcdcd).\n"
|
1279 | e432cef9 | Christoph Hellwig | " The write is performed asynchronously and the aio_flush command must be\n"
|
1280 | 96bab41d | Laszlo Ersek | " used to ensure all outstanding aio requests have been completed.\n"
|
1281 | 95533d5f | Christoph Hellwig | " -P, -- use different pattern to fill file\n"
|
1282 | 95533d5f | Christoph Hellwig | " -C, -- report statistics in a machine parsable format\n"
|
1283 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
1284 | 95533d5f | Christoph Hellwig | "\n");
|
1285 | 95533d5f | Christoph Hellwig | } |
1286 | 95533d5f | Christoph Hellwig | |
1287 | 22a2bdcb | Blue Swirl | static int aio_write_f(int argc, char **argv); |
1288 | 22a2bdcb | Blue Swirl | |
1289 | 22a2bdcb | Blue Swirl | static const cmdinfo_t aio_write_cmd = { |
1290 | 43642b38 | Devin Nakamura | .name = "aio_write",
|
1291 | 43642b38 | Devin Nakamura | .cfunc = aio_write_f, |
1292 | 43642b38 | Devin Nakamura | .argmin = 2,
|
1293 | 43642b38 | Devin Nakamura | .argmax = -1,
|
1294 | 43642b38 | Devin Nakamura | .args = "[-Cq] [-P pattern ] off len [len..]",
|
1295 | 43642b38 | Devin Nakamura | .oneline = "asynchronously writes a number of bytes",
|
1296 | 43642b38 | Devin Nakamura | .help = aio_write_help, |
1297 | 22a2bdcb | Blue Swirl | }; |
1298 | 95533d5f | Christoph Hellwig | |
1299 | 43642b38 | Devin Nakamura | static int aio_write_f(int argc, char **argv) |
1300 | 95533d5f | Christoph Hellwig | { |
1301 | 43642b38 | Devin Nakamura | int nr_iov, c;
|
1302 | 43642b38 | Devin Nakamura | int pattern = 0xcd; |
1303 | 031380d8 | Stefan Hajnoczi | struct aio_ctx *ctx = g_new0(struct aio_ctx, 1); |
1304 | 43642b38 | Devin Nakamura | |
1305 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "CqP:")) != EOF) { |
1306 | 43642b38 | Devin Nakamura | switch (c) {
|
1307 | 43642b38 | Devin Nakamura | case 'C': |
1308 | 43642b38 | Devin Nakamura | ctx->Cflag = 1;
|
1309 | 43642b38 | Devin Nakamura | break;
|
1310 | 43642b38 | Devin Nakamura | case 'q': |
1311 | 43642b38 | Devin Nakamura | ctx->qflag = 1;
|
1312 | 43642b38 | Devin Nakamura | break;
|
1313 | 43642b38 | Devin Nakamura | case 'P': |
1314 | 43642b38 | Devin Nakamura | pattern = parse_pattern(optarg); |
1315 | 43642b38 | Devin Nakamura | if (pattern < 0) { |
1316 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1317 | 43642b38 | Devin Nakamura | return 0; |
1318 | 43642b38 | Devin Nakamura | } |
1319 | 43642b38 | Devin Nakamura | break;
|
1320 | 43642b38 | Devin Nakamura | default:
|
1321 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1322 | 43642b38 | Devin Nakamura | return command_usage(&aio_write_cmd);
|
1323 | 43642b38 | Devin Nakamura | } |
1324 | 43642b38 | Devin Nakamura | } |
1325 | 43642b38 | Devin Nakamura | |
1326 | 43642b38 | Devin Nakamura | if (optind > argc - 2) { |
1327 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1328 | 43642b38 | Devin Nakamura | return command_usage(&aio_write_cmd);
|
1329 | 43642b38 | Devin Nakamura | } |
1330 | 43642b38 | Devin Nakamura | |
1331 | 43642b38 | Devin Nakamura | ctx->offset = cvtnum(argv[optind]); |
1332 | 43642b38 | Devin Nakamura | if (ctx->offset < 0) { |
1333 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
1334 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1335 | 43642b38 | Devin Nakamura | return 0; |
1336 | 43642b38 | Devin Nakamura | } |
1337 | 43642b38 | Devin Nakamura | optind++; |
1338 | 43642b38 | Devin Nakamura | |
1339 | 43642b38 | Devin Nakamura | if (ctx->offset & 0x1ff) { |
1340 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
1341 | 43642b38 | Devin Nakamura | ctx->offset); |
1342 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1343 | 43642b38 | Devin Nakamura | return 0; |
1344 | 43642b38 | Devin Nakamura | } |
1345 | 43642b38 | Devin Nakamura | |
1346 | 43642b38 | Devin Nakamura | nr_iov = argc - optind; |
1347 | 43642b38 | Devin Nakamura | ctx->buf = create_iovec(&ctx->qiov, &argv[optind], nr_iov, pattern); |
1348 | f2360620 | Kevin Wolf | if (ctx->buf == NULL) { |
1349 | 031380d8 | Stefan Hajnoczi | g_free(ctx); |
1350 | f2360620 | Kevin Wolf | return 0; |
1351 | f2360620 | Kevin Wolf | } |
1352 | 43642b38 | Devin Nakamura | |
1353 | 43642b38 | Devin Nakamura | gettimeofday(&ctx->t1, NULL);
|
1354 | ad54ae80 | Paolo Bonzini | bdrv_aio_writev(bs, ctx->offset >> 9, &ctx->qiov,
|
1355 | ad54ae80 | Paolo Bonzini | ctx->qiov.size >> 9, aio_write_done, ctx);
|
1356 | 43642b38 | Devin Nakamura | return 0; |
1357 | 95533d5f | Christoph Hellwig | } |
1358 | 95533d5f | Christoph Hellwig | |
1359 | 43642b38 | Devin Nakamura | static int aio_flush_f(int argc, char **argv) |
1360 | 95533d5f | Christoph Hellwig | { |
1361 | 43642b38 | Devin Nakamura | qemu_aio_flush(); |
1362 | 43642b38 | Devin Nakamura | return 0; |
1363 | 95533d5f | Christoph Hellwig | } |
1364 | 95533d5f | Christoph Hellwig | |
1365 | 95533d5f | Christoph Hellwig | static const cmdinfo_t aio_flush_cmd = { |
1366 | 43642b38 | Devin Nakamura | .name = "aio_flush",
|
1367 | 43642b38 | Devin Nakamura | .cfunc = aio_flush_f, |
1368 | 43642b38 | Devin Nakamura | .oneline = "completes all outstanding aio requests"
|
1369 | 95533d5f | Christoph Hellwig | }; |
1370 | 95533d5f | Christoph Hellwig | |
1371 | 43642b38 | Devin Nakamura | static int flush_f(int argc, char **argv) |
1372 | e3aff4f6 | aliguori | { |
1373 | 43642b38 | Devin Nakamura | bdrv_flush(bs); |
1374 | 43642b38 | Devin Nakamura | return 0; |
1375 | e3aff4f6 | aliguori | } |
1376 | e3aff4f6 | aliguori | |
1377 | e3aff4f6 | aliguori | static const cmdinfo_t flush_cmd = { |
1378 | 43642b38 | Devin Nakamura | .name = "flush",
|
1379 | 43642b38 | Devin Nakamura | .altname = "f",
|
1380 | 43642b38 | Devin Nakamura | .cfunc = flush_f, |
1381 | 43642b38 | Devin Nakamura | .oneline = "flush all in-core file state to disk",
|
1382 | e3aff4f6 | aliguori | }; |
1383 | e3aff4f6 | aliguori | |
1384 | 43642b38 | Devin Nakamura | static int truncate_f(int argc, char **argv) |
1385 | e3aff4f6 | aliguori | { |
1386 | 43642b38 | Devin Nakamura | int64_t offset; |
1387 | 43642b38 | Devin Nakamura | int ret;
|
1388 | 43642b38 | Devin Nakamura | |
1389 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[1]);
|
1390 | 43642b38 | Devin Nakamura | if (offset < 0) { |
1391 | 43642b38 | Devin Nakamura | printf("non-numeric truncate argument -- %s\n", argv[1]); |
1392 | 43642b38 | Devin Nakamura | return 0; |
1393 | 43642b38 | Devin Nakamura | } |
1394 | 43642b38 | Devin Nakamura | |
1395 | 43642b38 | Devin Nakamura | ret = bdrv_truncate(bs, offset); |
1396 | 43642b38 | Devin Nakamura | if (ret < 0) { |
1397 | 43642b38 | Devin Nakamura | printf("truncate: %s\n", strerror(-ret));
|
1398 | 43642b38 | Devin Nakamura | return 0; |
1399 | 43642b38 | Devin Nakamura | } |
1400 | 43642b38 | Devin Nakamura | |
1401 | 43642b38 | Devin Nakamura | return 0; |
1402 | e3aff4f6 | aliguori | } |
1403 | e3aff4f6 | aliguori | |
1404 | e3aff4f6 | aliguori | static const cmdinfo_t truncate_cmd = { |
1405 | 43642b38 | Devin Nakamura | .name = "truncate",
|
1406 | 43642b38 | Devin Nakamura | .altname = "t",
|
1407 | 43642b38 | Devin Nakamura | .cfunc = truncate_f, |
1408 | 43642b38 | Devin Nakamura | .argmin = 1,
|
1409 | 43642b38 | Devin Nakamura | .argmax = 1,
|
1410 | 43642b38 | Devin Nakamura | .args = "off",
|
1411 | 43642b38 | Devin Nakamura | .oneline = "truncates the current file at the given offset",
|
1412 | e3aff4f6 | aliguori | }; |
1413 | e3aff4f6 | aliguori | |
1414 | 43642b38 | Devin Nakamura | static int length_f(int argc, char **argv) |
1415 | e3aff4f6 | aliguori | { |
1416 | 43642b38 | Devin Nakamura | int64_t size; |
1417 | 43642b38 | Devin Nakamura | char s1[64]; |
1418 | 43642b38 | Devin Nakamura | |
1419 | 43642b38 | Devin Nakamura | size = bdrv_getlength(bs); |
1420 | 43642b38 | Devin Nakamura | if (size < 0) { |
1421 | 43642b38 | Devin Nakamura | printf("getlength: %s\n", strerror(-size));
|
1422 | 43642b38 | Devin Nakamura | return 0; |
1423 | 43642b38 | Devin Nakamura | } |
1424 | 43642b38 | Devin Nakamura | |
1425 | 43642b38 | Devin Nakamura | cvtstr(size, s1, sizeof(s1));
|
1426 | 43642b38 | Devin Nakamura | printf("%s\n", s1);
|
1427 | 43642b38 | Devin Nakamura | return 0; |
1428 | e3aff4f6 | aliguori | } |
1429 | e3aff4f6 | aliguori | |
1430 | e3aff4f6 | aliguori | |
1431 | e3aff4f6 | aliguori | static const cmdinfo_t length_cmd = { |
1432 | 43642b38 | Devin Nakamura | .name = "length",
|
1433 | 43642b38 | Devin Nakamura | .altname = "l",
|
1434 | 43642b38 | Devin Nakamura | .cfunc = length_f, |
1435 | 43642b38 | Devin Nakamura | .oneline = "gets the length of the current file",
|
1436 | e3aff4f6 | aliguori | }; |
1437 | e3aff4f6 | aliguori | |
1438 | e3aff4f6 | aliguori | |
1439 | 43642b38 | Devin Nakamura | static int info_f(int argc, char **argv) |
1440 | e3aff4f6 | aliguori | { |
1441 | 43642b38 | Devin Nakamura | BlockDriverInfo bdi; |
1442 | 43642b38 | Devin Nakamura | char s1[64], s2[64]; |
1443 | 43642b38 | Devin Nakamura | int ret;
|
1444 | e3aff4f6 | aliguori | |
1445 | 43642b38 | Devin Nakamura | if (bs->drv && bs->drv->format_name) {
|
1446 | 43642b38 | Devin Nakamura | printf("format name: %s\n", bs->drv->format_name);
|
1447 | 43642b38 | Devin Nakamura | } |
1448 | 43642b38 | Devin Nakamura | if (bs->drv && bs->drv->protocol_name) {
|
1449 | 43642b38 | Devin Nakamura | printf("format name: %s\n", bs->drv->protocol_name);
|
1450 | 43642b38 | Devin Nakamura | } |
1451 | e3aff4f6 | aliguori | |
1452 | 43642b38 | Devin Nakamura | ret = bdrv_get_info(bs, &bdi); |
1453 | 43642b38 | Devin Nakamura | if (ret) {
|
1454 | 43642b38 | Devin Nakamura | return 0; |
1455 | 43642b38 | Devin Nakamura | } |
1456 | e3aff4f6 | aliguori | |
1457 | 43642b38 | Devin Nakamura | cvtstr(bdi.cluster_size, s1, sizeof(s1));
|
1458 | 43642b38 | Devin Nakamura | cvtstr(bdi.vm_state_offset, s2, sizeof(s2));
|
1459 | e3aff4f6 | aliguori | |
1460 | 43642b38 | Devin Nakamura | printf("cluster size: %s\n", s1);
|
1461 | 43642b38 | Devin Nakamura | printf("vm state offset: %s\n", s2);
|
1462 | e3aff4f6 | aliguori | |
1463 | 43642b38 | Devin Nakamura | return 0; |
1464 | e3aff4f6 | aliguori | } |
1465 | e3aff4f6 | aliguori | |
1466 | e3aff4f6 | aliguori | |
1467 | e3aff4f6 | aliguori | |
1468 | e3aff4f6 | aliguori | static const cmdinfo_t info_cmd = { |
1469 | 43642b38 | Devin Nakamura | .name = "info",
|
1470 | 43642b38 | Devin Nakamura | .altname = "i",
|
1471 | 43642b38 | Devin Nakamura | .cfunc = info_f, |
1472 | 43642b38 | Devin Nakamura | .oneline = "prints information about the current file",
|
1473 | e3aff4f6 | aliguori | }; |
1474 | e3aff4f6 | aliguori | |
1475 | 43642b38 | Devin Nakamura | static void discard_help(void) |
1476 | edff5db1 | Stefan Hajnoczi | { |
1477 | 43642b38 | Devin Nakamura | printf( |
1478 | edff5db1 | Stefan Hajnoczi | "\n"
|
1479 | edff5db1 | Stefan Hajnoczi | " discards a range of bytes from the given offset\n"
|
1480 | edff5db1 | Stefan Hajnoczi | "\n"
|
1481 | edff5db1 | Stefan Hajnoczi | " Example:\n"
|
1482 | edff5db1 | Stefan Hajnoczi | " 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file\n"
|
1483 | edff5db1 | Stefan Hajnoczi | "\n"
|
1484 | edff5db1 | Stefan Hajnoczi | " Discards a segment of the currently open file.\n"
|
1485 | edff5db1 | Stefan Hajnoczi | " -C, -- report statistics in a machine parsable format\n"
|
1486 | 095343ad | Kevin Wolf | " -q, -- quiet mode, do not show I/O statistics\n"
|
1487 | edff5db1 | Stefan Hajnoczi | "\n");
|
1488 | edff5db1 | Stefan Hajnoczi | } |
1489 | edff5db1 | Stefan Hajnoczi | |
1490 | edff5db1 | Stefan Hajnoczi | static int discard_f(int argc, char **argv); |
1491 | edff5db1 | Stefan Hajnoczi | |
1492 | edff5db1 | Stefan Hajnoczi | static const cmdinfo_t discard_cmd = { |
1493 | 43642b38 | Devin Nakamura | .name = "discard",
|
1494 | 43642b38 | Devin Nakamura | .altname = "d",
|
1495 | 43642b38 | Devin Nakamura | .cfunc = discard_f, |
1496 | 43642b38 | Devin Nakamura | .argmin = 2,
|
1497 | 43642b38 | Devin Nakamura | .argmax = -1,
|
1498 | 43642b38 | Devin Nakamura | .args = "[-Cq] off len",
|
1499 | 43642b38 | Devin Nakamura | .oneline = "discards a number of bytes at a specified offset",
|
1500 | 43642b38 | Devin Nakamura | .help = discard_help, |
1501 | edff5db1 | Stefan Hajnoczi | }; |
1502 | edff5db1 | Stefan Hajnoczi | |
1503 | 43642b38 | Devin Nakamura | static int discard_f(int argc, char **argv) |
1504 | edff5db1 | Stefan Hajnoczi | { |
1505 | 43642b38 | Devin Nakamura | struct timeval t1, t2;
|
1506 | 43642b38 | Devin Nakamura | int Cflag = 0, qflag = 0; |
1507 | 43642b38 | Devin Nakamura | int c, ret;
|
1508 | 43642b38 | Devin Nakamura | int64_t offset; |
1509 | 43642b38 | Devin Nakamura | int count;
|
1510 | 43642b38 | Devin Nakamura | |
1511 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "Cq")) != EOF) { |
1512 | 43642b38 | Devin Nakamura | switch (c) {
|
1513 | 43642b38 | Devin Nakamura | case 'C': |
1514 | 43642b38 | Devin Nakamura | Cflag = 1;
|
1515 | 43642b38 | Devin Nakamura | break;
|
1516 | 43642b38 | Devin Nakamura | case 'q': |
1517 | 43642b38 | Devin Nakamura | qflag = 1;
|
1518 | 43642b38 | Devin Nakamura | break;
|
1519 | 43642b38 | Devin Nakamura | default:
|
1520 | 43642b38 | Devin Nakamura | return command_usage(&discard_cmd);
|
1521 | 43642b38 | Devin Nakamura | } |
1522 | 43642b38 | Devin Nakamura | } |
1523 | 43642b38 | Devin Nakamura | |
1524 | 43642b38 | Devin Nakamura | if (optind != argc - 2) { |
1525 | 43642b38 | Devin Nakamura | return command_usage(&discard_cmd);
|
1526 | 43642b38 | Devin Nakamura | } |
1527 | 43642b38 | Devin Nakamura | |
1528 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[optind]); |
1529 | 43642b38 | Devin Nakamura | if (offset < 0) { |
1530 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
1531 | 43642b38 | Devin Nakamura | return 0; |
1532 | 43642b38 | Devin Nakamura | } |
1533 | 43642b38 | Devin Nakamura | |
1534 | 43642b38 | Devin Nakamura | optind++; |
1535 | 43642b38 | Devin Nakamura | count = cvtnum(argv[optind]); |
1536 | 43642b38 | Devin Nakamura | if (count < 0) { |
1537 | 43642b38 | Devin Nakamura | printf("non-numeric length argument -- %s\n", argv[optind]);
|
1538 | 43642b38 | Devin Nakamura | return 0; |
1539 | 43642b38 | Devin Nakamura | } |
1540 | 43642b38 | Devin Nakamura | |
1541 | 43642b38 | Devin Nakamura | gettimeofday(&t1, NULL);
|
1542 | 43642b38 | Devin Nakamura | ret = bdrv_discard(bs, offset >> BDRV_SECTOR_BITS, |
1543 | 43642b38 | Devin Nakamura | count >> BDRV_SECTOR_BITS); |
1544 | 43642b38 | Devin Nakamura | gettimeofday(&t2, NULL);
|
1545 | 43642b38 | Devin Nakamura | |
1546 | 43642b38 | Devin Nakamura | if (ret < 0) { |
1547 | 43642b38 | Devin Nakamura | printf("discard failed: %s\n", strerror(-ret));
|
1548 | 43642b38 | Devin Nakamura | goto out;
|
1549 | 43642b38 | Devin Nakamura | } |
1550 | 43642b38 | Devin Nakamura | |
1551 | 43642b38 | Devin Nakamura | /* Finally, report back -- -C gives a parsable format */
|
1552 | 43642b38 | Devin Nakamura | if (!qflag) {
|
1553 | 43642b38 | Devin Nakamura | t2 = tsub(t2, t1); |
1554 | 43642b38 | Devin Nakamura | print_report("discard", &t2, offset, count, count, 1, Cflag); |
1555 | 43642b38 | Devin Nakamura | } |
1556 | edff5db1 | Stefan Hajnoczi | |
1557 | edff5db1 | Stefan Hajnoczi | out:
|
1558 | 43642b38 | Devin Nakamura | return 0; |
1559 | edff5db1 | Stefan Hajnoczi | } |
1560 | edff5db1 | Stefan Hajnoczi | |
1561 | 43642b38 | Devin Nakamura | static int alloc_f(int argc, char **argv) |
1562 | e3aff4f6 | aliguori | { |
1563 | cc785c34 | Paolo Bonzini | int64_t offset, sector_num; |
1564 | 43642b38 | Devin Nakamura | int nb_sectors, remaining;
|
1565 | 43642b38 | Devin Nakamura | char s1[64]; |
1566 | 43642b38 | Devin Nakamura | int num, sum_alloc;
|
1567 | 43642b38 | Devin Nakamura | int ret;
|
1568 | 43642b38 | Devin Nakamura | |
1569 | 43642b38 | Devin Nakamura | offset = cvtnum(argv[1]);
|
1570 | 43642b38 | Devin Nakamura | if (offset & 0x1ff) { |
1571 | 43642b38 | Devin Nakamura | printf("offset %" PRId64 " is not sector aligned\n", |
1572 | 43642b38 | Devin Nakamura | offset); |
1573 | 43642b38 | Devin Nakamura | return 0; |
1574 | 43642b38 | Devin Nakamura | } |
1575 | 43642b38 | Devin Nakamura | |
1576 | 43642b38 | Devin Nakamura | if (argc == 3) { |
1577 | 43642b38 | Devin Nakamura | nb_sectors = cvtnum(argv[2]);
|
1578 | 43642b38 | Devin Nakamura | } else {
|
1579 | 43642b38 | Devin Nakamura | nb_sectors = 1;
|
1580 | 43642b38 | Devin Nakamura | } |
1581 | 43642b38 | Devin Nakamura | |
1582 | 43642b38 | Devin Nakamura | remaining = nb_sectors; |
1583 | 43642b38 | Devin Nakamura | sum_alloc = 0;
|
1584 | cc785c34 | Paolo Bonzini | sector_num = offset >> 9;
|
1585 | 43642b38 | Devin Nakamura | while (remaining) {
|
1586 | cc785c34 | Paolo Bonzini | ret = bdrv_is_allocated(bs, sector_num, remaining, &num); |
1587 | cc785c34 | Paolo Bonzini | sector_num += num; |
1588 | 43642b38 | Devin Nakamura | remaining -= num; |
1589 | 43642b38 | Devin Nakamura | if (ret) {
|
1590 | 43642b38 | Devin Nakamura | sum_alloc += num; |
1591 | 43642b38 | Devin Nakamura | } |
1592 | cc785c34 | Paolo Bonzini | if (num == 0) { |
1593 | cc785c34 | Paolo Bonzini | nb_sectors -= remaining; |
1594 | cc785c34 | Paolo Bonzini | remaining = 0;
|
1595 | cc785c34 | Paolo Bonzini | } |
1596 | 43642b38 | Devin Nakamura | } |
1597 | 43642b38 | Devin Nakamura | |
1598 | 43642b38 | Devin Nakamura | cvtstr(offset, s1, sizeof(s1));
|
1599 | 43642b38 | Devin Nakamura | |
1600 | 43642b38 | Devin Nakamura | printf("%d/%d sectors allocated at offset %s\n",
|
1601 | 43642b38 | Devin Nakamura | sum_alloc, nb_sectors, s1); |
1602 | 43642b38 | Devin Nakamura | return 0; |
1603 | e3aff4f6 | aliguori | } |
1604 | e3aff4f6 | aliguori | |
1605 | e3aff4f6 | aliguori | static const cmdinfo_t alloc_cmd = { |
1606 | 43642b38 | Devin Nakamura | .name = "alloc",
|
1607 | 43642b38 | Devin Nakamura | .altname = "a",
|
1608 | 43642b38 | Devin Nakamura | .argmin = 1,
|
1609 | 43642b38 | Devin Nakamura | .argmax = 2,
|
1610 | 43642b38 | Devin Nakamura | .cfunc = alloc_f, |
1611 | 43642b38 | Devin Nakamura | .args = "off [sectors]",
|
1612 | 43642b38 | Devin Nakamura | .oneline = "checks if a sector is present in the file",
|
1613 | e3aff4f6 | aliguori | }; |
1614 | e3aff4f6 | aliguori | |
1615 | 43642b38 | Devin Nakamura | static int map_f(int argc, char **argv) |
1616 | 191c2890 | Kevin Wolf | { |
1617 | 43642b38 | Devin Nakamura | int64_t offset; |
1618 | 43642b38 | Devin Nakamura | int64_t nb_sectors; |
1619 | 43642b38 | Devin Nakamura | char s1[64]; |
1620 | 43642b38 | Devin Nakamura | int num, num_checked;
|
1621 | 43642b38 | Devin Nakamura | int ret;
|
1622 | 43642b38 | Devin Nakamura | const char *retstr; |
1623 | 43642b38 | Devin Nakamura | |
1624 | 43642b38 | Devin Nakamura | offset = 0;
|
1625 | 43642b38 | Devin Nakamura | nb_sectors = bs->total_sectors; |
1626 | 43642b38 | Devin Nakamura | |
1627 | 43642b38 | Devin Nakamura | do {
|
1628 | 43642b38 | Devin Nakamura | num_checked = MIN(nb_sectors, INT_MAX); |
1629 | 43642b38 | Devin Nakamura | ret = bdrv_is_allocated(bs, offset, num_checked, &num); |
1630 | 43642b38 | Devin Nakamura | retstr = ret ? " allocated" : "not allocated"; |
1631 | 43642b38 | Devin Nakamura | cvtstr(offset << 9ULL, s1, sizeof(s1)); |
1632 | 43642b38 | Devin Nakamura | printf("[% 24" PRId64 "] % 8d/% 8d sectors %s at offset %s (%d)\n", |
1633 | 43642b38 | Devin Nakamura | offset << 9ULL, num, num_checked, retstr, s1, ret);
|
1634 | 43642b38 | Devin Nakamura | |
1635 | 43642b38 | Devin Nakamura | offset += num; |
1636 | 43642b38 | Devin Nakamura | nb_sectors -= num; |
1637 | 43642b38 | Devin Nakamura | } while (offset < bs->total_sectors);
|
1638 | 43642b38 | Devin Nakamura | |
1639 | 43642b38 | Devin Nakamura | return 0; |
1640 | 191c2890 | Kevin Wolf | } |
1641 | 191c2890 | Kevin Wolf | |
1642 | 191c2890 | Kevin Wolf | static const cmdinfo_t map_cmd = { |
1643 | 191c2890 | Kevin Wolf | .name = "map",
|
1644 | 191c2890 | Kevin Wolf | .argmin = 0,
|
1645 | 191c2890 | Kevin Wolf | .argmax = 0,
|
1646 | 191c2890 | Kevin Wolf | .cfunc = map_f, |
1647 | 191c2890 | Kevin Wolf | .args = "",
|
1648 | 191c2890 | Kevin Wolf | .oneline = "prints the allocated areas of a file",
|
1649 | 191c2890 | Kevin Wolf | }; |
1650 | 191c2890 | Kevin Wolf | |
1651 | 191c2890 | Kevin Wolf | |
1652 | 43642b38 | Devin Nakamura | static int close_f(int argc, char **argv) |
1653 | e3aff4f6 | aliguori | { |
1654 | b4657855 | Stefan Hajnoczi | bdrv_delete(bs); |
1655 | 43642b38 | Devin Nakamura | bs = NULL;
|
1656 | 43642b38 | Devin Nakamura | return 0; |
1657 | e3aff4f6 | aliguori | } |
1658 | e3aff4f6 | aliguori | |
1659 | e3aff4f6 | aliguori | static const cmdinfo_t close_cmd = { |
1660 | 43642b38 | Devin Nakamura | .name = "close",
|
1661 | 43642b38 | Devin Nakamura | .altname = "c",
|
1662 | 43642b38 | Devin Nakamura | .cfunc = close_f, |
1663 | 43642b38 | Devin Nakamura | .oneline = "close the current open file",
|
1664 | e3aff4f6 | aliguori | }; |
1665 | e3aff4f6 | aliguori | |
1666 | 9c4bab26 | Christoph Hellwig | static int openfile(char *name, int flags, int growable) |
1667 | e3aff4f6 | aliguori | { |
1668 | 43642b38 | Devin Nakamura | if (bs) {
|
1669 | 43642b38 | Devin Nakamura | fprintf(stderr, "file open already, try 'help close'\n");
|
1670 | 43642b38 | Devin Nakamura | return 1; |
1671 | 43642b38 | Devin Nakamura | } |
1672 | 43642b38 | Devin Nakamura | |
1673 | 43642b38 | Devin Nakamura | if (growable) {
|
1674 | 43642b38 | Devin Nakamura | if (bdrv_file_open(&bs, name, flags)) {
|
1675 | 43642b38 | Devin Nakamura | fprintf(stderr, "%s: can't open device %s\n", progname, name);
|
1676 | 43642b38 | Devin Nakamura | return 1; |
1677 | 43642b38 | Devin Nakamura | } |
1678 | 43642b38 | Devin Nakamura | } else {
|
1679 | 43642b38 | Devin Nakamura | bs = bdrv_new("hda");
|
1680 | 43642b38 | Devin Nakamura | |
1681 | 43642b38 | Devin Nakamura | if (bdrv_open(bs, name, flags, NULL) < 0) { |
1682 | 43642b38 | Devin Nakamura | fprintf(stderr, "%s: can't open device %s\n", progname, name);
|
1683 | b4657855 | Stefan Hajnoczi | bdrv_delete(bs); |
1684 | 43642b38 | Devin Nakamura | bs = NULL;
|
1685 | 43642b38 | Devin Nakamura | return 1; |
1686 | 43642b38 | Devin Nakamura | } |
1687 | 43642b38 | Devin Nakamura | } |
1688 | 43642b38 | Devin Nakamura | |
1689 | 43642b38 | Devin Nakamura | return 0; |
1690 | e3aff4f6 | aliguori | } |
1691 | e3aff4f6 | aliguori | |
1692 | 43642b38 | Devin Nakamura | static void open_help(void) |
1693 | e3aff4f6 | aliguori | { |
1694 | 43642b38 | Devin Nakamura | printf( |
1695 | e3aff4f6 | aliguori | "\n"
|
1696 | e3aff4f6 | aliguori | " opens a new file in the requested mode\n"
|
1697 | e3aff4f6 | aliguori | "\n"
|
1698 | e3aff4f6 | aliguori | " Example:\n"
|
1699 | e3aff4f6 | aliguori | " 'open -Cn /tmp/data' - creates/opens data file read-write and uncached\n"
|
1700 | e3aff4f6 | aliguori | "\n"
|
1701 | e3aff4f6 | aliguori | " Opens a file for subsequent use by all of the other qemu-io commands.\n"
|
1702 | e3aff4f6 | aliguori | " -r, -- open file read-only\n"
|
1703 | e3aff4f6 | aliguori | " -s, -- use snapshot file\n"
|
1704 | e3aff4f6 | aliguori | " -n, -- disable host cache\n"
|
1705 | 9c4bab26 | Christoph Hellwig | " -g, -- allow file to grow (only applies to protocols)"
|
1706 | e3aff4f6 | aliguori | "\n");
|
1707 | e3aff4f6 | aliguori | } |
1708 | e3aff4f6 | aliguori | |
1709 | 22a2bdcb | Blue Swirl | static int open_f(int argc, char **argv); |
1710 | 22a2bdcb | Blue Swirl | |
1711 | 22a2bdcb | Blue Swirl | static const cmdinfo_t open_cmd = { |
1712 | 43642b38 | Devin Nakamura | .name = "open",
|
1713 | 43642b38 | Devin Nakamura | .altname = "o",
|
1714 | 43642b38 | Devin Nakamura | .cfunc = open_f, |
1715 | 43642b38 | Devin Nakamura | .argmin = 1,
|
1716 | 43642b38 | Devin Nakamura | .argmax = -1,
|
1717 | 43642b38 | Devin Nakamura | .flags = CMD_NOFILE_OK, |
1718 | 43642b38 | Devin Nakamura | .args = "[-Crsn] [path]",
|
1719 | 43642b38 | Devin Nakamura | .oneline = "open the file specified by path",
|
1720 | 43642b38 | Devin Nakamura | .help = open_help, |
1721 | 22a2bdcb | Blue Swirl | }; |
1722 | e3aff4f6 | aliguori | |
1723 | 43642b38 | Devin Nakamura | static int open_f(int argc, char **argv) |
1724 | e3aff4f6 | aliguori | { |
1725 | 43642b38 | Devin Nakamura | int flags = 0; |
1726 | 43642b38 | Devin Nakamura | int readonly = 0; |
1727 | 43642b38 | Devin Nakamura | int growable = 0; |
1728 | 43642b38 | Devin Nakamura | int c;
|
1729 | 43642b38 | Devin Nakamura | |
1730 | 43642b38 | Devin Nakamura | while ((c = getopt(argc, argv, "snrg")) != EOF) { |
1731 | 43642b38 | Devin Nakamura | switch (c) {
|
1732 | 43642b38 | Devin Nakamura | case 's': |
1733 | 43642b38 | Devin Nakamura | flags |= BDRV_O_SNAPSHOT; |
1734 | 43642b38 | Devin Nakamura | break;
|
1735 | 43642b38 | Devin Nakamura | case 'n': |
1736 | 43642b38 | Devin Nakamura | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; |
1737 | 43642b38 | Devin Nakamura | break;
|
1738 | 43642b38 | Devin Nakamura | case 'r': |
1739 | 43642b38 | Devin Nakamura | readonly = 1;
|
1740 | 43642b38 | Devin Nakamura | break;
|
1741 | 43642b38 | Devin Nakamura | case 'g': |
1742 | 43642b38 | Devin Nakamura | growable = 1;
|
1743 | 43642b38 | Devin Nakamura | break;
|
1744 | 43642b38 | Devin Nakamura | default:
|
1745 | 43642b38 | Devin Nakamura | return command_usage(&open_cmd);
|
1746 | f5edb014 | Naphtali Sprei | } |
1747 | 43642b38 | Devin Nakamura | } |
1748 | 43642b38 | Devin Nakamura | |
1749 | 43642b38 | Devin Nakamura | if (!readonly) {
|
1750 | 43642b38 | Devin Nakamura | flags |= BDRV_O_RDWR; |
1751 | 43642b38 | Devin Nakamura | } |
1752 | e3aff4f6 | aliguori | |
1753 | 43642b38 | Devin Nakamura | if (optind != argc - 1) { |
1754 | 43642b38 | Devin Nakamura | return command_usage(&open_cmd);
|
1755 | 43642b38 | Devin Nakamura | } |
1756 | e3aff4f6 | aliguori | |
1757 | 43642b38 | Devin Nakamura | return openfile(argv[optind], flags, growable);
|
1758 | e3aff4f6 | aliguori | } |
1759 | e3aff4f6 | aliguori | |
1760 | 43642b38 | Devin Nakamura | static int init_args_command(int index) |
1761 | e3aff4f6 | aliguori | { |
1762 | 43642b38 | Devin Nakamura | /* only one device allowed so far */
|
1763 | 43642b38 | Devin Nakamura | if (index >= 1) { |
1764 | 43642b38 | Devin Nakamura | return 0; |
1765 | 43642b38 | Devin Nakamura | } |
1766 | 43642b38 | Devin Nakamura | return ++index;
|
1767 | e3aff4f6 | aliguori | } |
1768 | e3aff4f6 | aliguori | |
1769 | 43642b38 | Devin Nakamura | static int init_check_command(const cmdinfo_t *ct) |
1770 | e3aff4f6 | aliguori | { |
1771 | 43642b38 | Devin Nakamura | if (ct->flags & CMD_FLAG_GLOBAL) {
|
1772 | 43642b38 | Devin Nakamura | return 1; |
1773 | 43642b38 | Devin Nakamura | } |
1774 | 43642b38 | Devin Nakamura | if (!(ct->flags & CMD_NOFILE_OK) && !bs) {
|
1775 | 43642b38 | Devin Nakamura | fprintf(stderr, "no file open, try 'help open'\n");
|
1776 | 43642b38 | Devin Nakamura | return 0; |
1777 | 43642b38 | Devin Nakamura | } |
1778 | 43642b38 | Devin Nakamura | return 1; |
1779 | e3aff4f6 | aliguori | } |
1780 | e3aff4f6 | aliguori | |
1781 | e3aff4f6 | aliguori | static void usage(const char *name) |
1782 | e3aff4f6 | aliguori | { |
1783 | 43642b38 | Devin Nakamura | printf( |
1784 | 9a2d77ad | Christoph Hellwig | "Usage: %s [-h] [-V] [-rsnm] [-c cmd] ... [file]\n"
|
1785 | 84844a20 | Stefan Weil | "QEMU Disk exerciser\n"
|
1786 | e3aff4f6 | aliguori | "\n"
|
1787 | e3aff4f6 | aliguori | " -c, --cmd command to execute\n"
|
1788 | e3aff4f6 | aliguori | " -r, --read-only export read-only\n"
|
1789 | e3aff4f6 | aliguori | " -s, --snapshot use snapshot file\n"
|
1790 | e3aff4f6 | aliguori | " -n, --nocache disable host cache\n"
|
1791 | 1db6947d | Christoph Hellwig | " -g, --growable allow file to grow (only applies to protocols)\n"
|
1792 | e3aff4f6 | aliguori | " -m, --misalign misalign allocations for O_DIRECT\n"
|
1793 | 5c6c3a6c | Christoph Hellwig | " -k, --native-aio use kernel AIO implementation (on Linux only)\n"
|
1794 | 592fa070 | Kevin Wolf | " -t, --cache=MODE use the given cache mode for the image\n"
|
1795 | d7bb72c8 | Stefan Hajnoczi | " -T, --trace FILE enable trace events listed in the given file\n"
|
1796 | e3aff4f6 | aliguori | " -h, --help display this help and exit\n"
|
1797 | e3aff4f6 | aliguori | " -V, --version output version information and exit\n"
|
1798 | e3aff4f6 | aliguori | "\n",
|
1799 | 43642b38 | Devin Nakamura | name); |
1800 | e3aff4f6 | aliguori | } |
1801 | e3aff4f6 | aliguori | |
1802 | e3aff4f6 | aliguori | |
1803 | e3aff4f6 | aliguori | int main(int argc, char **argv) |
1804 | e3aff4f6 | aliguori | { |
1805 | 43642b38 | Devin Nakamura | int readonly = 0; |
1806 | 43642b38 | Devin Nakamura | int growable = 0; |
1807 | 592fa070 | Kevin Wolf | const char *sopt = "hVc:rsnmgkt:T:"; |
1808 | 43642b38 | Devin Nakamura | const struct option lopt[] = { |
1809 | 43642b38 | Devin Nakamura | { "help", 0, NULL, 'h' }, |
1810 | 43642b38 | Devin Nakamura | { "version", 0, NULL, 'V' }, |
1811 | 43642b38 | Devin Nakamura | { "offset", 1, NULL, 'o' }, |
1812 | 43642b38 | Devin Nakamura | { "cmd", 1, NULL, 'c' }, |
1813 | 43642b38 | Devin Nakamura | { "read-only", 0, NULL, 'r' }, |
1814 | 43642b38 | Devin Nakamura | { "snapshot", 0, NULL, 's' }, |
1815 | 43642b38 | Devin Nakamura | { "nocache", 0, NULL, 'n' }, |
1816 | 43642b38 | Devin Nakamura | { "misalign", 0, NULL, 'm' }, |
1817 | 43642b38 | Devin Nakamura | { "growable", 0, NULL, 'g' }, |
1818 | 43642b38 | Devin Nakamura | { "native-aio", 0, NULL, 'k' }, |
1819 | 592fa070 | Kevin Wolf | { "cache", 1, NULL, 't' }, |
1820 | d7bb72c8 | Stefan Hajnoczi | { "trace", 1, NULL, 'T' }, |
1821 | 43642b38 | Devin Nakamura | { NULL, 0, NULL, 0 } |
1822 | 43642b38 | Devin Nakamura | }; |
1823 | 43642b38 | Devin Nakamura | int c;
|
1824 | 43642b38 | Devin Nakamura | int opt_index = 0; |
1825 | 43642b38 | Devin Nakamura | int flags = 0; |
1826 | 43642b38 | Devin Nakamura | |
1827 | 43642b38 | Devin Nakamura | progname = basename(argv[0]);
|
1828 | 43642b38 | Devin Nakamura | |
1829 | 43642b38 | Devin Nakamura | while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) { |
1830 | 43642b38 | Devin Nakamura | switch (c) {
|
1831 | 43642b38 | Devin Nakamura | case 's': |
1832 | 43642b38 | Devin Nakamura | flags |= BDRV_O_SNAPSHOT; |
1833 | 43642b38 | Devin Nakamura | break;
|
1834 | 43642b38 | Devin Nakamura | case 'n': |
1835 | 43642b38 | Devin Nakamura | flags |= BDRV_O_NOCACHE | BDRV_O_CACHE_WB; |
1836 | 43642b38 | Devin Nakamura | break;
|
1837 | 43642b38 | Devin Nakamura | case 'c': |
1838 | 43642b38 | Devin Nakamura | add_user_command(optarg); |
1839 | 43642b38 | Devin Nakamura | break;
|
1840 | 43642b38 | Devin Nakamura | case 'r': |
1841 | 43642b38 | Devin Nakamura | readonly = 1;
|
1842 | 43642b38 | Devin Nakamura | break;
|
1843 | 43642b38 | Devin Nakamura | case 'm': |
1844 | 43642b38 | Devin Nakamura | misalign = 1;
|
1845 | 43642b38 | Devin Nakamura | break;
|
1846 | 43642b38 | Devin Nakamura | case 'g': |
1847 | 43642b38 | Devin Nakamura | growable = 1;
|
1848 | 43642b38 | Devin Nakamura | break;
|
1849 | 43642b38 | Devin Nakamura | case 'k': |
1850 | 43642b38 | Devin Nakamura | flags |= BDRV_O_NATIVE_AIO; |
1851 | 43642b38 | Devin Nakamura | break;
|
1852 | 592fa070 | Kevin Wolf | case 't': |
1853 | 592fa070 | Kevin Wolf | if (bdrv_parse_cache_flags(optarg, &flags) < 0) { |
1854 | 592fa070 | Kevin Wolf | error_report("Invalid cache option: %s", optarg);
|
1855 | 592fa070 | Kevin Wolf | exit(1);
|
1856 | 592fa070 | Kevin Wolf | } |
1857 | 592fa070 | Kevin Wolf | break;
|
1858 | d7bb72c8 | Stefan Hajnoczi | case 'T': |
1859 | d7bb72c8 | Stefan Hajnoczi | if (!trace_backend_init(optarg, NULL)) { |
1860 | d7bb72c8 | Stefan Hajnoczi | exit(1); /* error message will have been printed */ |
1861 | d7bb72c8 | Stefan Hajnoczi | } |
1862 | d7bb72c8 | Stefan Hajnoczi | break;
|
1863 | 43642b38 | Devin Nakamura | case 'V': |
1864 | 43642b38 | Devin Nakamura | printf("%s version %s\n", progname, VERSION);
|
1865 | 43642b38 | Devin Nakamura | exit(0);
|
1866 | 43642b38 | Devin Nakamura | case 'h': |
1867 | 43642b38 | Devin Nakamura | usage(progname); |
1868 | 43642b38 | Devin Nakamura | exit(0);
|
1869 | 43642b38 | Devin Nakamura | default:
|
1870 | 43642b38 | Devin Nakamura | usage(progname); |
1871 | 43642b38 | Devin Nakamura | exit(1);
|
1872 | f5edb014 | Naphtali Sprei | } |
1873 | 43642b38 | Devin Nakamura | } |
1874 | 43642b38 | Devin Nakamura | |
1875 | 43642b38 | Devin Nakamura | if ((argc - optind) > 1) { |
1876 | 43642b38 | Devin Nakamura | usage(progname); |
1877 | 43642b38 | Devin Nakamura | exit(1);
|
1878 | 43642b38 | Devin Nakamura | } |
1879 | e3aff4f6 | aliguori | |
1880 | 43642b38 | Devin Nakamura | bdrv_init(); |
1881 | 43642b38 | Devin Nakamura | |
1882 | a57d1143 | Zhi Yong Wu | qemu_init_main_loop(); |
1883 | a57d1143 | Zhi Yong Wu | |
1884 | 43642b38 | Devin Nakamura | /* initialize commands */
|
1885 | 43642b38 | Devin Nakamura | quit_init(); |
1886 | 43642b38 | Devin Nakamura | help_init(); |
1887 | 43642b38 | Devin Nakamura | add_command(&open_cmd); |
1888 | 43642b38 | Devin Nakamura | add_command(&close_cmd); |
1889 | 43642b38 | Devin Nakamura | add_command(&read_cmd); |
1890 | 43642b38 | Devin Nakamura | add_command(&readv_cmd); |
1891 | 43642b38 | Devin Nakamura | add_command(&write_cmd); |
1892 | 43642b38 | Devin Nakamura | add_command(&writev_cmd); |
1893 | 43642b38 | Devin Nakamura | add_command(&multiwrite_cmd); |
1894 | 43642b38 | Devin Nakamura | add_command(&aio_read_cmd); |
1895 | 43642b38 | Devin Nakamura | add_command(&aio_write_cmd); |
1896 | 43642b38 | Devin Nakamura | add_command(&aio_flush_cmd); |
1897 | 43642b38 | Devin Nakamura | add_command(&flush_cmd); |
1898 | 43642b38 | Devin Nakamura | add_command(&truncate_cmd); |
1899 | 43642b38 | Devin Nakamura | add_command(&length_cmd); |
1900 | 43642b38 | Devin Nakamura | add_command(&info_cmd); |
1901 | 43642b38 | Devin Nakamura | add_command(&discard_cmd); |
1902 | 43642b38 | Devin Nakamura | add_command(&alloc_cmd); |
1903 | 43642b38 | Devin Nakamura | add_command(&map_cmd); |
1904 | 43642b38 | Devin Nakamura | |
1905 | 43642b38 | Devin Nakamura | add_args_command(init_args_command); |
1906 | 43642b38 | Devin Nakamura | add_check_command(init_check_command); |
1907 | 43642b38 | Devin Nakamura | |
1908 | 43642b38 | Devin Nakamura | /* open the device */
|
1909 | 43642b38 | Devin Nakamura | if (!readonly) {
|
1910 | 43642b38 | Devin Nakamura | flags |= BDRV_O_RDWR; |
1911 | 43642b38 | Devin Nakamura | } |
1912 | 43642b38 | Devin Nakamura | |
1913 | 43642b38 | Devin Nakamura | if ((argc - optind) == 1) { |
1914 | 43642b38 | Devin Nakamura | openfile(argv[optind], flags, growable); |
1915 | 43642b38 | Devin Nakamura | } |
1916 | 43642b38 | Devin Nakamura | command_loop(); |
1917 | e3aff4f6 | aliguori | |
1918 | 43642b38 | Devin Nakamura | /*
|
1919 | 922453bc | Stefan Hajnoczi | * Make sure all outstanding requests complete before the program exits.
|
1920 | 43642b38 | Devin Nakamura | */
|
1921 | 922453bc | Stefan Hajnoczi | bdrv_drain_all(); |
1922 | 95533d5f | Christoph Hellwig | |
1923 | 43642b38 | Devin Nakamura | if (bs) {
|
1924 | b4657855 | Stefan Hajnoczi | bdrv_delete(bs); |
1925 | 43642b38 | Devin Nakamura | } |
1926 | 43642b38 | Devin Nakamura | return 0; |
1927 | e3aff4f6 | aliguori | } |