trap signals for "-serial mon:stdio"
[qemu.git] / tests / hd-geo-test.c
1 /*
2 * Hard disk geometry test cases.
3 *
4 * Copyright (c) 2012 Red Hat Inc.
5 *
6 * Authors:
7 * Markus Armbruster <armbru@redhat.com>,
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
11 */
12
13 /*
14 * Covers only IDE and tests only CMOS contents. Better than nothing.
15 * Improvements welcome.
16 */
17
18 #include <glib.h>
19 #include <stdlib.h>
20 #include <string.h>
21 #include <unistd.h>
22 #include "qemu-common.h"
23 #include "libqtest.h"
24
25 static const char test_image[] = "/tmp/qtest.XXXXXX";
26
27 static char *create_test_img(int secs)
28 {
29 char *template = strdup("/tmp/qtest.XXXXXX");
30 int fd, ret;
31
32 fd = mkstemp(template);
33 g_assert(fd >= 0);
34 ret = ftruncate(fd, (off_t)secs * 512);
35 g_assert(ret == 0);
36 close(fd);
37 return template;
38 }
39
40 typedef struct {
41 int cyls, heads, secs, trans;
42 } CHST;
43
44 typedef enum {
45 mbr_blank, mbr_lba, mbr_chs,
46 mbr_last
47 } MBRcontents;
48
49 typedef enum {
50 /* order is relevant */
51 backend_small, backend_large, backend_empty,
52 backend_last
53 } Backend;
54
55 static const int img_secs[backend_last] = {
56 [backend_small] = 61440,
57 [backend_large] = 8388608,
58 [backend_empty] = -1,
59 };
60
61 static const CHST hd_chst[backend_last][mbr_last] = {
62 [backend_small] = {
63 [mbr_blank] = { 60, 16, 63, 0 },
64 [mbr_lba] = { 60, 16, 63, 2 },
65 [mbr_chs] = { 60, 16, 63, 0 }
66 },
67 [backend_large] = {
68 [mbr_blank] = { 8322, 16, 63, 1 },
69 [mbr_lba] = { 8322, 16, 63, 1 },
70 [mbr_chs] = { 8322, 16, 63, 0 }
71 },
72 };
73
74 static const char *img_file_name[backend_last];
75
76 static const CHST *cur_ide[4];
77
78 static bool is_hd(const CHST *expected_chst)
79 {
80 return expected_chst && expected_chst->cyls;
81 }
82
83 static void test_cmos_byte(int reg, int expected)
84 {
85 enum { cmos_base = 0x70 };
86 int actual;
87
88 outb(cmos_base + 0, reg);
89 actual = inb(cmos_base + 1);
90 g_assert(actual == expected);
91 }
92
93 static void test_cmos_bytes(int reg0, int n, uint8_t expected[])
94 {
95 int i;
96
97 for (i = 0; i < 9; i++) {
98 test_cmos_byte(reg0 + i, expected[i]);
99 }
100 }
101
102 static void test_cmos_disk_data(void)
103 {
104 test_cmos_byte(0x12,
105 (is_hd(cur_ide[0]) ? 0xf0 : 0) |
106 (is_hd(cur_ide[1]) ? 0x0f : 0));
107 }
108
109 static void test_cmos_drive_cyl(int reg0, const CHST *expected_chst)
110 {
111 if (is_hd(expected_chst)) {
112 int c = expected_chst->cyls;
113 int h = expected_chst->heads;
114 int s = expected_chst->secs;
115 uint8_t expected_bytes[9] = {
116 c & 0xff, c >> 8, h, 0xff, 0xff, 0xc0 | ((h > 8) << 3),
117 c & 0xff, c >> 8, s
118 };
119 test_cmos_bytes(reg0, 9, expected_bytes);
120 } else {
121 int i;
122
123 for (i = 0; i < 9; i++) {
124 test_cmos_byte(reg0 + i, 0);
125 }
126 }
127 }
128
129 static void test_cmos_drive1(void)
130 {
131 test_cmos_byte(0x19, is_hd(cur_ide[0]) ? 47 : 0);
132 test_cmos_drive_cyl(0x1b, cur_ide[0]);
133 }
134
135 static void test_cmos_drive2(void)
136 {
137 test_cmos_byte(0x1a, is_hd(cur_ide[1]) ? 47 : 0);
138 test_cmos_drive_cyl(0x24, cur_ide[1]);
139 }
140
141 static void test_cmos_disktransflag(void)
142 {
143 int val, i;
144
145 val = 0;
146 for (i = 0; i < ARRAY_SIZE(cur_ide); i++) {
147 if (is_hd(cur_ide[i])) {
148 val |= cur_ide[i]->trans << (2 * i);
149 }
150 }
151 test_cmos_byte(0x39, val);
152 }
153
154 static void test_cmos(void)
155 {
156 test_cmos_disk_data();
157 test_cmos_drive1();
158 test_cmos_drive2();
159 test_cmos_disktransflag();
160 }
161
162 static int append_arg(int argc, char *argv[], int argv_sz, char *arg)
163 {
164 g_assert(argc + 1 < argv_sz);
165 argv[argc++] = arg;
166 argv[argc] = NULL;
167 return argc;
168 }
169
170 static int setup_common(char *argv[], int argv_sz)
171 {
172 memset(cur_ide, 0, sizeof(cur_ide));
173 return append_arg(0, argv, argv_sz,
174 g_strdup("-nodefaults -display none"));
175 }
176
177 static void setup_mbr(int img_idx, MBRcontents mbr)
178 {
179 static const uint8_t part_lba[16] = {
180 /* chs 0,1,1 (lba 63) to chs 0,127,63 (8001 sectors) */
181 0x80, 1, 1, 0, 6, 127, 63, 0, 63, 0, 0, 0, 0x41, 0x1F, 0, 0,
182 };
183 static const uint8_t part_chs[16] = {
184 /* chs 0,1,1 (lba 63) to chs 7,15,63 (8001 sectors) */
185 0x80, 1, 1, 0, 6, 15, 63, 7, 63, 0, 0, 0, 0x41, 0x1F, 0, 0,
186 };
187 uint8_t buf[512];
188 int fd, ret;
189
190 memset(buf, 0, sizeof(buf));
191
192 if (mbr != mbr_blank) {
193 buf[0x1fe] = 0x55;
194 buf[0x1ff] = 0xAA;
195 memcpy(buf + 0x1BE, mbr == mbr_lba ? part_lba : part_chs, 16);
196 }
197
198 fd = open(img_file_name[img_idx], O_WRONLY);
199 g_assert(fd >= 0);
200 ret = write(fd, buf, sizeof(buf));
201 g_assert(ret == sizeof(buf));
202 close(fd);
203 }
204
205 static int setup_ide(int argc, char *argv[], int argv_sz,
206 int ide_idx, const char *dev, int img_idx,
207 MBRcontents mbr, const char *opts)
208 {
209 char *s1, *s2, *s3;
210
211 s1 = g_strdup_printf("-drive id=drive%d,if=%s",
212 ide_idx, dev ? "none" : "ide");
213 s2 = dev ? g_strdup("") : g_strdup_printf(",index=%d", ide_idx);
214
215 if (img_secs[img_idx] >= 0) {
216 setup_mbr(img_idx, mbr);
217 s3 = g_strdup_printf(",file=%s", img_file_name[img_idx]);
218 } else {
219 s3 = g_strdup(",media=cdrom");
220 }
221 argc = append_arg(argc, argv, argv_sz,
222 g_strdup_printf("%s%s%s%s", s1, s2, s3, opts));
223 g_free(s1);
224 g_free(s2);
225 g_free(s3);
226
227 if (dev) {
228 argc = append_arg(argc, argv, argv_sz,
229 g_strdup_printf("-device %s,drive=drive%d,"
230 "bus=ide.%d,unit=%d",
231 dev, ide_idx,
232 ide_idx / 2, ide_idx % 2));
233 }
234 return argc;
235 }
236
237 /*
238 * Test case: no IDE devices
239 */
240 static void test_ide_none(void)
241 {
242 char *argv[256];
243
244 setup_common(argv, ARRAY_SIZE(argv));
245 qtest_start(g_strjoinv(" ", argv));
246 test_cmos();
247 qtest_quit(global_qtest);
248 }
249
250 static void test_ide_mbr(bool use_device, MBRcontents mbr)
251 {
252 char *argv[256];
253 int argc;
254 Backend i;
255 const char *dev;
256
257 argc = setup_common(argv, ARRAY_SIZE(argv));
258 for (i = 0; i < backend_last; i++) {
259 cur_ide[i] = &hd_chst[i][mbr];
260 dev = use_device ? (is_hd(cur_ide[i]) ? "ide-hd" : "ide-cd") : NULL;
261 argc = setup_ide(argc, argv, ARRAY_SIZE(argv), i, dev, i, mbr, "");
262 }
263 qtest_start(g_strjoinv(" ", argv));
264 test_cmos();
265 qtest_quit(global_qtest);
266 }
267
268 /*
269 * Test case: IDE devices (if=ide) with blank MBRs
270 */
271 static void test_ide_drive_mbr_blank(void)
272 {
273 test_ide_mbr(false, mbr_blank);
274 }
275
276 /*
277 * Test case: IDE devices (if=ide) with MBRs indicating LBA is in use
278 */
279 static void test_ide_drive_mbr_lba(void)
280 {
281 test_ide_mbr(false, mbr_lba);
282 }
283
284 /*
285 * Test case: IDE devices (if=ide) with MBRs indicating CHS is in use
286 */
287 static void test_ide_drive_mbr_chs(void)
288 {
289 test_ide_mbr(false, mbr_chs);
290 }
291
292 /*
293 * Test case: IDE devices (if=none) with blank MBRs
294 */
295 static void test_ide_device_mbr_blank(void)
296 {
297 test_ide_mbr(true, mbr_blank);
298 }
299
300 /*
301 * Test case: IDE devices (if=none) with MBRs indicating LBA is in use
302 */
303 static void test_ide_device_mbr_lba(void)
304 {
305 test_ide_mbr(true, mbr_lba);
306 }
307
308 /*
309 * Test case: IDE devices (if=none) with MBRs indicating CHS is in use
310 */
311 static void test_ide_device_mbr_chs(void)
312 {
313 test_ide_mbr(true, mbr_chs);
314 }
315
316 static void test_ide_drive_user(const char *dev, bool trans)
317 {
318 char *argv[256], *opts;
319 int argc;
320 int secs = img_secs[backend_small];
321 const CHST expected_chst = { secs / (4 * 32) , 4, 32, trans };
322
323 argc = setup_common(argv, ARRAY_SIZE(argv));
324 opts = g_strdup_printf("%s,%s%scyls=%d,heads=%d,secs=%d",
325 dev ?: "",
326 trans && dev ? "bios-chs-" : "",
327 trans ? "trans=lba," : "",
328 expected_chst.cyls, expected_chst.heads,
329 expected_chst.secs);
330 cur_ide[0] = &expected_chst;
331 argc = setup_ide(argc, argv, ARRAY_SIZE(argv),
332 0, dev ? opts : NULL, backend_small, mbr_chs,
333 dev ? "" : opts);
334 g_free(opts);
335 qtest_start(g_strjoinv(" ", argv));
336 test_cmos();
337 qtest_quit(global_qtest);
338 }
339
340 /*
341 * Test case: IDE device (if=ide) with explicit CHS
342 */
343 static void test_ide_drive_user_chs(void)
344 {
345 test_ide_drive_user(NULL, false);
346 }
347
348 /*
349 * Test case: IDE device (if=ide) with explicit CHS and translation
350 */
351 static void test_ide_drive_user_chst(void)
352 {
353 test_ide_drive_user(NULL, true);
354 }
355
356 /*
357 * Test case: IDE device (if=none) with explicit CHS
358 */
359 static void test_ide_device_user_chs(void)
360 {
361 test_ide_drive_user("ide-hd", false);
362 }
363
364 /*
365 * Test case: IDE device (if=none) with explicit CHS and translation
366 */
367 static void test_ide_device_user_chst(void)
368 {
369 test_ide_drive_user("ide-hd", true);
370 }
371
372 /*
373 * Test case: IDE devices (if=ide), but use index=0 for CD-ROM
374 */
375 static void test_ide_drive_cd_0(void)
376 {
377 char *argv[256];
378 int argc, ide_idx;
379 Backend i;
380
381 argc = setup_common(argv, ARRAY_SIZE(argv));
382 for (i = 0; i <= backend_empty; i++) {
383 ide_idx = backend_empty - i;
384 cur_ide[ide_idx] = &hd_chst[i][mbr_blank];
385 argc = setup_ide(argc, argv, ARRAY_SIZE(argv),
386 ide_idx, NULL, i, mbr_blank, "");
387 }
388 qtest_start(g_strjoinv(" ", argv));
389 test_cmos();
390 qtest_quit(global_qtest);
391 }
392
393 int main(int argc, char **argv)
394 {
395 Backend i;
396 int ret;
397
398 g_test_init(&argc, &argv, NULL);
399
400 for (i = 0; i < backend_last; i++) {
401 if (img_secs[i] >= 0) {
402 img_file_name[i] = create_test_img(img_secs[i]);
403 } else {
404 img_file_name[i] = NULL;
405 }
406 }
407
408 qtest_add_func("hd-geo/ide/none", test_ide_none);
409 qtest_add_func("hd-geo/ide/drive/mbr/blank", test_ide_drive_mbr_blank);
410 qtest_add_func("hd-geo/ide/drive/mbr/lba", test_ide_drive_mbr_lba);
411 qtest_add_func("hd-geo/ide/drive/mbr/chs", test_ide_drive_mbr_chs);
412 qtest_add_func("hd-geo/ide/drive/user/chs", test_ide_drive_user_chs);
413 qtest_add_func("hd-geo/ide/drive/user/chst", test_ide_drive_user_chst);
414 qtest_add_func("hd-geo/ide/drive/cd_0", test_ide_drive_cd_0);
415 qtest_add_func("hd-geo/ide/device/mbr/blank", test_ide_device_mbr_blank);
416 qtest_add_func("hd-geo/ide/device/mbr/lba", test_ide_device_mbr_lba);
417 qtest_add_func("hd-geo/ide/device/mbr/chs", test_ide_device_mbr_chs);
418 qtest_add_func("hd-geo/ide/device/user/chs", test_ide_device_user_chs);
419 qtest_add_func("hd-geo/ide/device/user/chst", test_ide_device_user_chst);
420
421 ret = g_test_run();
422
423 for (i = 0; i < backend_last; i++) {
424 unlink(img_file_name[i]);
425 }
426
427 return ret;
428 }