xref: /openbmc/qemu/tests/qtest/hd-geo-test.c (revision 0ed93f4c)
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 "qemu/osdep.h"
19 #include "qemu-common.h"
20 #include "qemu/bswap.h"
21 #include "qapi/qmp/qlist.h"
22 #include "libqos/libqtest.h"
23 #include "libqos/fw_cfg.h"
24 #include "libqos/libqos.h"
25 #include "standard-headers/linux/qemu_fw_cfg.h"
26 
27 #define ARGV_SIZE 256
28 
29 static char *create_test_img(int secs)
30 {
31     char *template = strdup("/tmp/qtest.XXXXXX");
32     int fd, ret;
33 
34     fd = mkstemp(template);
35     g_assert(fd >= 0);
36     ret = ftruncate(fd, (off_t)secs * 512);
37     close(fd);
38 
39     if (ret) {
40         free(template);
41         template = NULL;
42     }
43 
44     return template;
45 }
46 
47 typedef struct {
48     int cyls, heads, secs, trans;
49 } CHST;
50 
51 typedef enum {
52     mbr_blank, mbr_lba, mbr_chs,
53     mbr_last
54 } MBRcontents;
55 
56 typedef enum {
57     /* order is relevant */
58     backend_small, backend_large, backend_empty,
59     backend_last
60 } Backend;
61 
62 static const int img_secs[backend_last] = {
63     [backend_small] = 61440,
64     [backend_large] = 8388608,
65     [backend_empty] = -1,
66 };
67 
68 static const CHST hd_chst[backend_last][mbr_last] = {
69     [backend_small] = {
70         [mbr_blank] = { 60, 16, 63, 0 },
71         [mbr_lba]   = { 60, 16, 63, 2 },
72         [mbr_chs]   = { 60, 16, 63, 0 }
73     },
74     [backend_large] = {
75         [mbr_blank] = { 8322, 16, 63, 1 },
76         [mbr_lba]   = { 8322, 16, 63, 1 },
77         [mbr_chs]   = { 8322, 16, 63, 0 }
78     },
79 };
80 
81 static char *img_file_name[backend_last];
82 
83 static const CHST *cur_ide[4];
84 
85 static bool is_hd(const CHST *expected_chst)
86 {
87     return expected_chst && expected_chst->cyls;
88 }
89 
90 static void test_cmos_byte(QTestState *qts, int reg, int expected)
91 {
92     enum { cmos_base = 0x70 };
93     int actual;
94 
95     qtest_outb(qts, cmos_base + 0, reg);
96     actual = qtest_inb(qts, cmos_base + 1);
97     g_assert(actual == expected);
98 }
99 
100 static void test_cmos_bytes(QTestState *qts, int reg0, int n,
101                             uint8_t expected[])
102 {
103     int i;
104 
105     for (i = 0; i < 9; i++) {
106         test_cmos_byte(qts, reg0 + i, expected[i]);
107     }
108 }
109 
110 static void test_cmos_disk_data(QTestState *qts)
111 {
112     test_cmos_byte(qts, 0x12,
113                    (is_hd(cur_ide[0]) ? 0xf0 : 0) |
114                    (is_hd(cur_ide[1]) ? 0x0f : 0));
115 }
116 
117 static void test_cmos_drive_cyl(QTestState *qts, int reg0,
118                                 const CHST *expected_chst)
119 {
120     if (is_hd(expected_chst)) {
121         int c = expected_chst->cyls;
122         int h = expected_chst->heads;
123         int s = expected_chst->secs;
124         uint8_t expected_bytes[9] = {
125             c & 0xff, c >> 8, h, 0xff, 0xff, 0xc0 | ((h > 8) << 3),
126             c & 0xff, c >> 8, s
127         };
128         test_cmos_bytes(qts, reg0, 9, expected_bytes);
129     } else {
130         int i;
131 
132         for (i = 0; i < 9; i++) {
133             test_cmos_byte(qts, reg0 + i, 0);
134         }
135     }
136 }
137 
138 static void test_cmos_drive1(QTestState *qts)
139 {
140     test_cmos_byte(qts, 0x19, is_hd(cur_ide[0]) ? 47 : 0);
141     test_cmos_drive_cyl(qts, 0x1b, cur_ide[0]);
142 }
143 
144 static void test_cmos_drive2(QTestState *qts)
145 {
146     test_cmos_byte(qts, 0x1a, is_hd(cur_ide[1]) ? 47 : 0);
147     test_cmos_drive_cyl(qts, 0x24, cur_ide[1]);
148 }
149 
150 static void test_cmos_disktransflag(QTestState *qts)
151 {
152     int val, i;
153 
154     val = 0;
155     for (i = 0; i < ARRAY_SIZE(cur_ide); i++) {
156         if (is_hd(cur_ide[i])) {
157             val |= cur_ide[i]->trans << (2 * i);
158         }
159     }
160     test_cmos_byte(qts, 0x39, val);
161 }
162 
163 static void test_cmos(QTestState *qts)
164 {
165     test_cmos_disk_data(qts);
166     test_cmos_drive1(qts);
167     test_cmos_drive2(qts);
168     test_cmos_disktransflag(qts);
169 }
170 
171 static int append_arg(int argc, char *argv[], int argv_sz, char *arg)
172 {
173     g_assert(argc + 1 < argv_sz);
174     argv[argc++] = arg;
175     argv[argc] = NULL;
176     return argc;
177 }
178 
179 static int setup_common(char *argv[], int argv_sz)
180 {
181     memset(cur_ide, 0, sizeof(cur_ide));
182     return append_arg(0, argv, argv_sz,
183                       g_strdup("-nodefaults"));
184 }
185 
186 static void setup_mbr(int img_idx, MBRcontents mbr)
187 {
188     static const uint8_t part_lba[16] = {
189         /* chs 0,1,1 (lba 63) to chs 0,127,63 (8001 sectors) */
190         0x80, 1, 1, 0, 6, 127, 63, 0, 63, 0, 0, 0, 0x41, 0x1F, 0, 0,
191     };
192     static const uint8_t part_chs[16] = {
193         /* chs 0,1,1 (lba 63) to chs 7,15,63 (8001 sectors) */
194         0x80, 1, 1, 0, 6,  15, 63, 7, 63, 0, 0, 0, 0x41, 0x1F, 0, 0,
195     };
196     uint8_t buf[512];
197     int fd, ret;
198 
199     memset(buf, 0, sizeof(buf));
200 
201     if (mbr != mbr_blank) {
202         buf[0x1fe] = 0x55;
203         buf[0x1ff] = 0xAA;
204         memcpy(buf + 0x1BE, mbr == mbr_lba ? part_lba : part_chs, 16);
205     }
206 
207     fd = open(img_file_name[img_idx], O_WRONLY);
208     g_assert(fd >= 0);
209     ret = write(fd, buf, sizeof(buf));
210     g_assert(ret == sizeof(buf));
211     close(fd);
212 }
213 
214 static int setup_ide(int argc, char *argv[], int argv_sz,
215                      int ide_idx, const char *dev, int img_idx,
216                      MBRcontents mbr)
217 {
218     char *s1, *s2, *s3;
219 
220     s1 = g_strdup_printf("-drive id=drive%d,if=%s",
221                          ide_idx, dev ? "none" : "ide");
222     s2 = dev ? g_strdup("") : g_strdup_printf(",index=%d", ide_idx);
223 
224     if (img_secs[img_idx] >= 0) {
225         setup_mbr(img_idx, mbr);
226         s3 = g_strdup_printf(",format=raw,file=%s", img_file_name[img_idx]);
227     } else {
228         s3 = g_strdup(",media=cdrom");
229     }
230     argc = append_arg(argc, argv, argv_sz,
231                       g_strdup_printf("%s%s%s", s1, s2, s3));
232     g_free(s1);
233     g_free(s2);
234     g_free(s3);
235 
236     if (dev) {
237         argc = append_arg(argc, argv, argv_sz,
238                           g_strdup_printf("-device %s,drive=drive%d,"
239                                           "bus=ide.%d,unit=%d",
240                                           dev, ide_idx,
241                                           ide_idx / 2, ide_idx % 2));
242     }
243     return argc;
244 }
245 
246 /*
247  * Test case: no IDE devices
248  */
249 static void test_ide_none(void)
250 {
251     char **argv = g_new0(char *, ARGV_SIZE);
252     char *args;
253     QTestState *qts;
254 
255     setup_common(argv, ARGV_SIZE);
256     args = g_strjoinv(" ", argv);
257     qts = qtest_init(args);
258     g_strfreev(argv);
259     g_free(args);
260     test_cmos(qts);
261     qtest_quit(qts);
262 }
263 
264 static void test_ide_mbr(bool use_device, MBRcontents mbr)
265 {
266     char **argv = g_new0(char *, ARGV_SIZE);
267     char *args;
268     int argc;
269     Backend i;
270     const char *dev;
271     QTestState *qts;
272 
273     argc = setup_common(argv, ARGV_SIZE);
274     for (i = 0; i < backend_last; i++) {
275         cur_ide[i] = &hd_chst[i][mbr];
276         dev = use_device ? (is_hd(cur_ide[i]) ? "ide-hd" : "ide-cd") : NULL;
277         argc = setup_ide(argc, argv, ARGV_SIZE, i, dev, i, mbr);
278     }
279     args = g_strjoinv(" ", argv);
280     qts = qtest_init(args);
281     g_strfreev(argv);
282     g_free(args);
283     test_cmos(qts);
284     qtest_quit(qts);
285 }
286 
287 /*
288  * Test case: IDE devices (if=ide) with blank MBRs
289  */
290 static void test_ide_drive_mbr_blank(void)
291 {
292     test_ide_mbr(false, mbr_blank);
293 }
294 
295 /*
296  * Test case: IDE devices (if=ide) with MBRs indicating LBA is in use
297  */
298 static void test_ide_drive_mbr_lba(void)
299 {
300     test_ide_mbr(false, mbr_lba);
301 }
302 
303 /*
304  * Test case: IDE devices (if=ide) with MBRs indicating CHS is in use
305  */
306 static void test_ide_drive_mbr_chs(void)
307 {
308     test_ide_mbr(false, mbr_chs);
309 }
310 
311 /*
312  * Test case: IDE devices (if=none) with blank MBRs
313  */
314 static void test_ide_device_mbr_blank(void)
315 {
316     test_ide_mbr(true, mbr_blank);
317 }
318 
319 /*
320  * Test case: IDE devices (if=none) with MBRs indicating LBA is in use
321  */
322 static void test_ide_device_mbr_lba(void)
323 {
324     test_ide_mbr(true, mbr_lba);
325 }
326 
327 /*
328  * Test case: IDE devices (if=none) with MBRs indicating CHS is in use
329  */
330 static void test_ide_device_mbr_chs(void)
331 {
332     test_ide_mbr(true, mbr_chs);
333 }
334 
335 static void test_ide_drive_user(const char *dev, bool trans)
336 {
337     char **argv = g_new0(char *, ARGV_SIZE);
338     char *args, *opts;
339     int argc;
340     int secs = img_secs[backend_small];
341     const CHST expected_chst = { secs / (4 * 32) , 4, 32, trans };
342     QTestState *qts;
343 
344     argc = setup_common(argv, ARGV_SIZE);
345     opts = g_strdup_printf("%s,%scyls=%d,heads=%d,secs=%d",
346                            dev, trans ? "bios-chs-trans=lba," : "",
347                            expected_chst.cyls, expected_chst.heads,
348                            expected_chst.secs);
349     cur_ide[0] = &expected_chst;
350     argc = setup_ide(argc, argv, ARGV_SIZE, 0, opts, backend_small, mbr_chs);
351     g_free(opts);
352     args = g_strjoinv(" ", argv);
353     qts = qtest_init(args);
354     g_strfreev(argv);
355     g_free(args);
356     test_cmos(qts);
357     qtest_quit(qts);
358 }
359 
360 /*
361  * Test case: IDE device (if=none) with explicit CHS
362  */
363 static void test_ide_device_user_chs(void)
364 {
365     test_ide_drive_user("ide-hd", false);
366 }
367 
368 /*
369  * Test case: IDE device (if=none) with explicit CHS and translation
370  */
371 static void test_ide_device_user_chst(void)
372 {
373     test_ide_drive_user("ide-hd", true);
374 }
375 
376 /*
377  * Test case: IDE devices (if=ide), but use index=0 for CD-ROM
378  */
379 static void test_ide_drive_cd_0(void)
380 {
381     char **argv = g_new0(char *, ARGV_SIZE);
382     char *args;
383     int argc, ide_idx;
384     Backend i;
385     QTestState *qts;
386 
387     argc = setup_common(argv, ARGV_SIZE);
388     for (i = 0; i <= backend_empty; i++) {
389         ide_idx = backend_empty - i;
390         cur_ide[ide_idx] = &hd_chst[i][mbr_blank];
391         argc = setup_ide(argc, argv, ARGV_SIZE, ide_idx, NULL, i, mbr_blank);
392     }
393     args = g_strjoinv(" ", argv);
394     qts = qtest_init(args);
395     g_strfreev(argv);
396     g_free(args);
397     test_cmos(qts);
398     qtest_quit(qts);
399 }
400 
401 typedef struct {
402     bool active;
403     uint32_t head;
404     uint32_t sector;
405     uint32_t cyl;
406     uint32_t end_head;
407     uint32_t end_sector;
408     uint32_t end_cyl;
409     uint32_t start_sect;
410     uint32_t nr_sects;
411 } MBRpartitions[4];
412 
413 static MBRpartitions empty_mbr = { {false, 0, 0, 0, 0, 0, 0, 0, 0},
414                                    {false, 0, 0, 0, 0, 0, 0, 0, 0},
415                                    {false, 0, 0, 0, 0, 0, 0, 0, 0},
416                                    {false, 0, 0, 0, 0, 0, 0, 0, 0} };
417 
418 static char *create_qcow2_with_mbr(MBRpartitions mbr, uint64_t sectors)
419 {
420     const char *template = "/tmp/qtest.XXXXXX";
421     char *raw_path = strdup(template);
422     char *qcow2_path = strdup(template);
423     char cmd[100 + 2 * PATH_MAX];
424     uint8_t buf[512] = {};
425     int i, ret, fd, offset;
426     uint64_t qcow2_size = sectors * 512;
427     uint8_t status, parttype, head, sector, cyl;
428     char *qemu_img_path;
429     char *qemu_img_abs_path;
430 
431     offset = 0xbe;
432 
433     for (i = 0; i < 4; i++) {
434         status = mbr[i].active ? 0x80 : 0x00;
435         g_assert(mbr[i].head < 256);
436         g_assert(mbr[i].sector < 64);
437         g_assert(mbr[i].cyl < 1024);
438         head = mbr[i].head;
439         sector = mbr[i].sector + ((mbr[i].cyl & 0x300) >> 2);
440         cyl = mbr[i].cyl & 0xff;
441 
442         buf[offset + 0x0] = status;
443         buf[offset + 0x1] = head;
444         buf[offset + 0x2] = sector;
445         buf[offset + 0x3] = cyl;
446 
447         parttype = 0;
448         g_assert(mbr[i].end_head < 256);
449         g_assert(mbr[i].end_sector < 64);
450         g_assert(mbr[i].end_cyl < 1024);
451         head = mbr[i].end_head;
452         sector = mbr[i].end_sector + ((mbr[i].end_cyl & 0x300) >> 2);
453         cyl = mbr[i].end_cyl & 0xff;
454 
455         buf[offset + 0x4] = parttype;
456         buf[offset + 0x5] = head;
457         buf[offset + 0x6] = sector;
458         buf[offset + 0x7] = cyl;
459 
460         stl_le_p(&buf[offset + 0x8], mbr[i].start_sect);
461         stl_le_p(&buf[offset + 0xc], mbr[i].nr_sects);
462 
463         offset += 0x10;
464     }
465 
466     fd = mkstemp(raw_path);
467     g_assert(fd);
468     close(fd);
469 
470     fd = open(raw_path, O_WRONLY);
471     g_assert(fd >= 0);
472     ret = write(fd, buf, sizeof(buf));
473     g_assert(ret == sizeof(buf));
474     close(fd);
475 
476     fd = mkstemp(qcow2_path);
477     g_assert(fd);
478     close(fd);
479 
480     qemu_img_path = getenv("QTEST_QEMU_IMG");
481     g_assert(qemu_img_path);
482     qemu_img_abs_path = realpath(qemu_img_path, NULL);
483     g_assert(qemu_img_abs_path);
484 
485     ret = snprintf(cmd, sizeof(cmd),
486                    "%s convert -f raw -O qcow2 %s %s > /dev/null",
487                    qemu_img_abs_path,
488                    raw_path, qcow2_path);
489     g_assert((0 < ret) && (ret <= sizeof(cmd)));
490     ret = system(cmd);
491     g_assert(ret == 0);
492 
493     ret = snprintf(cmd, sizeof(cmd),
494                    "%s resize %s %" PRIu64 " > /dev/null",
495                    qemu_img_abs_path,
496                    qcow2_path, qcow2_size);
497     g_assert((0 < ret) && (ret <= sizeof(cmd)));
498     ret = system(cmd);
499     g_assert(ret == 0);
500 
501     free(qemu_img_abs_path);
502 
503     unlink(raw_path);
504     free(raw_path);
505 
506     return qcow2_path;
507 }
508 
509 #define BIOS_GEOMETRY_MAX_SIZE 10000
510 
511 typedef struct {
512     uint32_t c;
513     uint32_t h;
514     uint32_t s;
515 } CHS;
516 
517 typedef struct {
518     const char *dev_path;
519     CHS chs;
520 } CHSResult;
521 
522 static void read_bootdevices(QFWCFG *fw_cfg, CHSResult expected[])
523 {
524     char *buf = g_malloc0(BIOS_GEOMETRY_MAX_SIZE);
525     char *cur;
526     GList *results = NULL, *cur_result;
527     CHSResult *r;
528     int i;
529     int res;
530     bool found;
531 
532     qfw_cfg_get_file(fw_cfg, "bios-geometry", buf, BIOS_GEOMETRY_MAX_SIZE);
533 
534     for (cur = buf; *cur; cur++) {
535         if (*cur == '\n') {
536             *cur = '\0';
537         }
538     }
539     cur = buf;
540 
541     while (strlen(cur)) {
542 
543         r = g_malloc0(sizeof(*r));
544         r->dev_path = g_malloc0(strlen(cur) + 1);
545         res = sscanf(cur, "%s %" PRIu32 " %" PRIu32 " %" PRIu32,
546                      (char *)r->dev_path,
547                      &(r->chs.c), &(r->chs.h), &(r->chs.s));
548 
549         g_assert(res == 4);
550 
551         results = g_list_prepend(results, r);
552 
553         cur += strlen(cur) + 1;
554     }
555 
556     i = 0;
557 
558     while (expected[i].dev_path) {
559         found = false;
560         cur_result = results;
561         while (cur_result) {
562             r = cur_result->data;
563             if (!strcmp(r->dev_path, expected[i].dev_path) &&
564                 !memcmp(&(r->chs), &(expected[i].chs), sizeof(r->chs))) {
565                 found = true;
566                 break;
567             }
568             cur_result = g_list_next(cur_result);
569         }
570         g_assert(found);
571         g_free((char *)((CHSResult *)cur_result->data)->dev_path);
572         g_free(cur_result->data);
573         results = g_list_delete_link(results, cur_result);
574         i++;
575     }
576 
577     g_assert(results == NULL);
578 
579     g_free(buf);
580 }
581 
582 #define MAX_DRIVES 30
583 
584 typedef struct {
585     char **argv;
586     int argc;
587     char **drives;
588     int n_drives;
589     int n_scsi_disks;
590     int n_scsi_controllers;
591     int n_virtio_disks;
592 } TestArgs;
593 
594 static TestArgs *create_args(void)
595 {
596     TestArgs *args = g_malloc0(sizeof(*args));
597     args->argv = g_new0(char *, ARGV_SIZE);
598     args->argc = append_arg(args->argc, args->argv,
599                             ARGV_SIZE, g_strdup("-nodefaults"));
600     args->drives = g_new0(char *, MAX_DRIVES);
601     return args;
602 }
603 
604 static void add_drive_with_mbr(TestArgs *args,
605                                MBRpartitions mbr, uint64_t sectors)
606 {
607     char *img_file_name;
608     char part[300];
609     int ret;
610 
611     g_assert(args->n_drives < MAX_DRIVES);
612 
613     img_file_name = create_qcow2_with_mbr(mbr, sectors);
614 
615     args->drives[args->n_drives] = img_file_name;
616     ret = snprintf(part, sizeof(part),
617                    "-drive file=%s,if=none,format=qcow2,id=disk%d",
618                    img_file_name, args->n_drives);
619     g_assert((0 < ret) && (ret <= sizeof(part)));
620     args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
621     args->n_drives++;
622 }
623 
624 static void add_ide_disk(TestArgs *args,
625                          int drive_idx, int bus, int unit, int c, int h, int s)
626 {
627     char part[300];
628     int ret;
629 
630     ret = snprintf(part, sizeof(part),
631                    "-device ide-hd,drive=disk%d,bus=ide.%d,unit=%d,"
632                    "lcyls=%d,lheads=%d,lsecs=%d",
633                    drive_idx, bus, unit, c, h, s);
634     g_assert((0 < ret) && (ret <= sizeof(part)));
635     args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
636 }
637 
638 static void add_scsi_controller(TestArgs *args,
639                                 const char *type,
640                                 const char *bus,
641                                 int addr)
642 {
643     char part[300];
644     int ret;
645 
646     ret = snprintf(part, sizeof(part),
647                    "-device %s,id=scsi%d,bus=%s,addr=%d",
648                    type, args->n_scsi_controllers, bus, addr);
649     g_assert((0 < ret) && (ret <= sizeof(part)));
650     args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
651     args->n_scsi_controllers++;
652 }
653 
654 static void add_scsi_disk(TestArgs *args,
655                           int drive_idx, int bus,
656                           int channel, int scsi_id, int lun,
657                           int c, int h, int s)
658 {
659     char part[300];
660     int ret;
661 
662     ret = snprintf(part, sizeof(part),
663                    "-device scsi-hd,id=scsi-disk%d,drive=disk%d,"
664                    "bus=scsi%d.0,"
665                    "channel=%d,scsi-id=%d,lun=%d,"
666                    "lcyls=%d,lheads=%d,lsecs=%d",
667                    args->n_scsi_disks, drive_idx, bus, channel, scsi_id, lun,
668                    c, h, s);
669     g_assert((0 < ret) && (ret <= sizeof(part)));
670     args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
671     args->n_scsi_disks++;
672 }
673 
674 static void add_virtio_disk(TestArgs *args,
675                             int drive_idx, const char *bus, int addr,
676                             int c, int h, int s)
677 {
678     char part[300];
679     int ret;
680 
681     ret = snprintf(part, sizeof(part),
682                    "-device virtio-blk-pci,id=virtio-disk%d,"
683                    "drive=disk%d,bus=%s,addr=%d,"
684                    "lcyls=%d,lheads=%d,lsecs=%d",
685                    args->n_virtio_disks, drive_idx, bus, addr, c, h, s);
686     g_assert((0 < ret) && (ret <= sizeof(part)));
687     args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, g_strdup(part));
688     args->n_virtio_disks++;
689 }
690 
691 static void test_override(TestArgs *args, CHSResult expected[])
692 {
693     QTestState *qts;
694     char *joined_args;
695     QFWCFG *fw_cfg;
696     int i;
697 
698     joined_args = g_strjoinv(" ", args->argv);
699 
700     qts = qtest_init(joined_args);
701     fw_cfg = pc_fw_cfg_init(qts);
702 
703     read_bootdevices(fw_cfg, expected);
704 
705     g_free(joined_args);
706     qtest_quit(qts);
707 
708     g_free(fw_cfg);
709 
710     for (i = 0; i < args->n_drives; i++) {
711         unlink(args->drives[i]);
712         free(args->drives[i]);
713     }
714     g_free(args->drives);
715     g_strfreev(args->argv);
716     g_free(args);
717 }
718 
719 static void test_override_ide(void)
720 {
721     TestArgs *args = create_args();
722     CHSResult expected[] = {
723         {"/pci@i0cf8/ide@1,1/drive@0/disk@0", {10000, 120, 30} },
724         {"/pci@i0cf8/ide@1,1/drive@0/disk@1", {9000, 120, 30} },
725         {"/pci@i0cf8/ide@1,1/drive@1/disk@0", {0, 1, 1} },
726         {"/pci@i0cf8/ide@1,1/drive@1/disk@1", {1, 0, 0} },
727         {NULL, {0, 0, 0} }
728     };
729     add_drive_with_mbr(args, empty_mbr, 1);
730     add_drive_with_mbr(args, empty_mbr, 1);
731     add_drive_with_mbr(args, empty_mbr, 1);
732     add_drive_with_mbr(args, empty_mbr, 1);
733     add_ide_disk(args, 0, 0, 0, 10000, 120, 30);
734     add_ide_disk(args, 1, 0, 1, 9000, 120, 30);
735     add_ide_disk(args, 2, 1, 0, 0, 1, 1);
736     add_ide_disk(args, 3, 1, 1, 1, 0, 0);
737     test_override(args, expected);
738 }
739 
740 static void test_override_scsi(void)
741 {
742     TestArgs *args = create_args();
743     CHSResult expected[] = {
744         {"/pci@i0cf8/scsi@3/channel@0/disk@0,0", {10000, 120, 30} },
745         {"/pci@i0cf8/scsi@3/channel@0/disk@1,0", {9000, 120, 30} },
746         {"/pci@i0cf8/scsi@3/channel@0/disk@2,0", {1, 0, 0} },
747         {"/pci@i0cf8/scsi@3/channel@0/disk@3,0", {0, 1, 0} },
748         {NULL, {0, 0, 0} }
749     };
750     add_drive_with_mbr(args, empty_mbr, 1);
751     add_drive_with_mbr(args, empty_mbr, 1);
752     add_drive_with_mbr(args, empty_mbr, 1);
753     add_drive_with_mbr(args, empty_mbr, 1);
754     add_scsi_controller(args, "lsi53c895a", "pci.0", 3);
755     add_scsi_disk(args, 0, 0, 0, 0, 0, 10000, 120, 30);
756     add_scsi_disk(args, 1, 0, 0, 1, 0, 9000, 120, 30);
757     add_scsi_disk(args, 2, 0, 0, 2, 0, 1, 0, 0);
758     add_scsi_disk(args, 3, 0, 0, 3, 0, 0, 1, 0);
759     test_override(args, expected);
760 }
761 
762 static void test_override_scsi_2_controllers(void)
763 {
764     TestArgs *args = create_args();
765     CHSResult expected[] = {
766         {"/pci@i0cf8/scsi@3/channel@0/disk@0,0", {10000, 120, 30} },
767         {"/pci@i0cf8/scsi@3/channel@0/disk@1,0", {9000, 120, 30} },
768         {"/pci@i0cf8/scsi@4/channel@0/disk@0,1", {1, 0, 0} },
769         {"/pci@i0cf8/scsi@4/channel@0/disk@1,2", {0, 1, 0} },
770         {NULL, {0, 0, 0} }
771     };
772     add_drive_with_mbr(args, empty_mbr, 1);
773     add_drive_with_mbr(args, empty_mbr, 1);
774     add_drive_with_mbr(args, empty_mbr, 1);
775     add_drive_with_mbr(args, empty_mbr, 1);
776     add_scsi_controller(args, "lsi53c895a", "pci.0", 3);
777     add_scsi_controller(args, "virtio-scsi-pci", "pci.0", 4);
778     add_scsi_disk(args, 0, 0, 0, 0, 0, 10000, 120, 30);
779     add_scsi_disk(args, 1, 0, 0, 1, 0, 9000, 120, 30);
780     add_scsi_disk(args, 2, 1, 0, 0, 1, 1, 0, 0);
781     add_scsi_disk(args, 3, 1, 0, 1, 2, 0, 1, 0);
782     test_override(args, expected);
783 }
784 
785 static void test_override_virtio_blk(void)
786 {
787     TestArgs *args = create_args();
788     CHSResult expected[] = {
789         {"/pci@i0cf8/scsi@3/disk@0,0", {10000, 120, 30} },
790         {"/pci@i0cf8/scsi@4/disk@0,0", {9000, 120, 30} },
791         {NULL, {0, 0, 0} }
792     };
793     add_drive_with_mbr(args, empty_mbr, 1);
794     add_drive_with_mbr(args, empty_mbr, 1);
795     add_virtio_disk(args, 0, "pci.0", 3, 10000, 120, 30);
796     add_virtio_disk(args, 1, "pci.0", 4, 9000, 120, 30);
797     test_override(args, expected);
798 }
799 
800 static void test_override_zero_chs(void)
801 {
802     TestArgs *args = create_args();
803     CHSResult expected[] = {
804         {NULL, {0, 0, 0} }
805     };
806     add_drive_with_mbr(args, empty_mbr, 1);
807     add_ide_disk(args, 0, 1, 1, 0, 0, 0);
808     test_override(args, expected);
809 }
810 
811 static void test_override_scsi_hot_unplug(void)
812 {
813     QTestState *qts;
814     char *joined_args;
815     QFWCFG *fw_cfg;
816     QDict *response;
817     int i;
818     TestArgs *args = create_args();
819     CHSResult expected[] = {
820         {"/pci@i0cf8/scsi@2/channel@0/disk@0,0", {10000, 120, 30} },
821         {"/pci@i0cf8/scsi@2/channel@0/disk@1,0", {20, 20, 20} },
822         {NULL, {0, 0, 0} }
823     };
824     CHSResult expected2[] = {
825         {"/pci@i0cf8/scsi@2/channel@0/disk@1,0", {20, 20, 20} },
826         {NULL, {0, 0, 0} }
827     };
828     add_drive_with_mbr(args, empty_mbr, 1);
829     add_drive_with_mbr(args, empty_mbr, 1);
830     add_scsi_controller(args, "virtio-scsi-pci", "pci.0", 2);
831     add_scsi_disk(args, 0, 0, 0, 0, 0, 10000, 120, 30);
832     add_scsi_disk(args, 1, 0, 0, 1, 0, 20, 20, 20);
833 
834     joined_args = g_strjoinv(" ", args->argv);
835 
836     qts = qtest_init(joined_args);
837     fw_cfg = pc_fw_cfg_init(qts);
838 
839     read_bootdevices(fw_cfg, expected);
840 
841     /* unplug device an restart */
842     response = qtest_qmp(qts,
843                          "{ 'execute': 'device_del',"
844                          "  'arguments': {'id': 'scsi-disk0' }}");
845     g_assert(response);
846     g_assert(!qdict_haskey(response, "error"));
847     qobject_unref(response);
848     response = qtest_qmp(qts,
849                          "{ 'execute': 'system_reset', 'arguments': { }}");
850     g_assert(response);
851     g_assert(!qdict_haskey(response, "error"));
852     qobject_unref(response);
853 
854     qtest_qmp_eventwait(qts, "RESET");
855 
856     read_bootdevices(fw_cfg, expected2);
857 
858     g_free(joined_args);
859     qtest_quit(qts);
860 
861     g_free(fw_cfg);
862 
863     for (i = 0; i < args->n_drives; i++) {
864         unlink(args->drives[i]);
865         free(args->drives[i]);
866     }
867     g_free(args->drives);
868     g_strfreev(args->argv);
869     g_free(args);
870 }
871 
872 static void test_override_virtio_hot_unplug(void)
873 {
874     QTestState *qts;
875     char *joined_args;
876     QFWCFG *fw_cfg;
877     QDict *response;
878     int i;
879     TestArgs *args = create_args();
880     CHSResult expected[] = {
881         {"/pci@i0cf8/scsi@2/disk@0,0", {10000, 120, 30} },
882         {"/pci@i0cf8/scsi@3/disk@0,0", {20, 20, 20} },
883         {NULL, {0, 0, 0} }
884     };
885     CHSResult expected2[] = {
886         {"/pci@i0cf8/scsi@3/disk@0,0", {20, 20, 20} },
887         {NULL, {0, 0, 0} }
888     };
889     add_drive_with_mbr(args, empty_mbr, 1);
890     add_drive_with_mbr(args, empty_mbr, 1);
891     add_virtio_disk(args, 0, "pci.0", 2, 10000, 120, 30);
892     add_virtio_disk(args, 1, "pci.0", 3, 20, 20, 20);
893 
894     joined_args = g_strjoinv(" ", args->argv);
895 
896     qts = qtest_init(joined_args);
897     fw_cfg = pc_fw_cfg_init(qts);
898 
899     read_bootdevices(fw_cfg, expected);
900 
901     /* unplug device an restart */
902     response = qtest_qmp(qts,
903                          "{ 'execute': 'device_del',"
904                          "  'arguments': {'id': 'virtio-disk0' }}");
905     g_assert(response);
906     g_assert(!qdict_haskey(response, "error"));
907     qobject_unref(response);
908     response = qtest_qmp(qts,
909                          "{ 'execute': 'system_reset', 'arguments': { }}");
910     g_assert(response);
911     g_assert(!qdict_haskey(response, "error"));
912     qobject_unref(response);
913 
914     qtest_qmp_eventwait(qts, "RESET");
915 
916     read_bootdevices(fw_cfg, expected2);
917 
918     g_free(joined_args);
919     qtest_quit(qts);
920 
921     g_free(fw_cfg);
922 
923     for (i = 0; i < args->n_drives; i++) {
924         unlink(args->drives[i]);
925         free(args->drives[i]);
926     }
927     g_free(args->drives);
928     g_strfreev(args->argv);
929     g_free(args);
930 }
931 
932 int main(int argc, char **argv)
933 {
934     Backend i;
935     int ret;
936 
937     g_test_init(&argc, &argv, NULL);
938 
939     for (i = 0; i < backend_last; i++) {
940         if (img_secs[i] >= 0) {
941             img_file_name[i] = create_test_img(img_secs[i]);
942             if (!img_file_name[i]) {
943                 g_test_message("Could not create test images.");
944                 goto test_add_done;
945             }
946         } else {
947             img_file_name[i] = NULL;
948         }
949     }
950 
951     qtest_add_func("hd-geo/ide/none", test_ide_none);
952     qtest_add_func("hd-geo/ide/drive/mbr/blank", test_ide_drive_mbr_blank);
953     qtest_add_func("hd-geo/ide/drive/mbr/lba", test_ide_drive_mbr_lba);
954     qtest_add_func("hd-geo/ide/drive/mbr/chs", test_ide_drive_mbr_chs);
955     qtest_add_func("hd-geo/ide/drive/cd_0", test_ide_drive_cd_0);
956     qtest_add_func("hd-geo/ide/device/mbr/blank", test_ide_device_mbr_blank);
957     qtest_add_func("hd-geo/ide/device/mbr/lba", test_ide_device_mbr_lba);
958     qtest_add_func("hd-geo/ide/device/mbr/chs", test_ide_device_mbr_chs);
959     qtest_add_func("hd-geo/ide/device/user/chs", test_ide_device_user_chs);
960     qtest_add_func("hd-geo/ide/device/user/chst", test_ide_device_user_chst);
961     if (have_qemu_img()) {
962         qtest_add_func("hd-geo/override/ide", test_override_ide);
963         qtest_add_func("hd-geo/override/scsi", test_override_scsi);
964         qtest_add_func("hd-geo/override/scsi_2_controllers",
965                        test_override_scsi_2_controllers);
966         qtest_add_func("hd-geo/override/virtio_blk", test_override_virtio_blk);
967         qtest_add_func("hd-geo/override/zero_chs", test_override_zero_chs);
968         qtest_add_func("hd-geo/override/scsi_hot_unplug",
969                        test_override_scsi_hot_unplug);
970         qtest_add_func("hd-geo/override/virtio_hot_unplug",
971                        test_override_virtio_hot_unplug);
972     } else {
973         g_test_message("QTEST_QEMU_IMG not set or qemu-img missing; "
974                        "skipping hd-geo/override/* tests");
975     }
976 
977 test_add_done:
978     ret = g_test_run();
979 
980     for (i = 0; i < backend_last; i++) {
981         if (img_file_name[i]) {
982             unlink(img_file_name[i]);
983             free(img_file_name[i]);
984         }
985     }
986 
987     return ret;
988 }
989