tests/hd-geo-test.c - qemu - Git at Google

 /*
  * Hard disk geometry test cases.
  *
  * Copyright (c) 2012 Red Hat Inc.
  *
  * Authors:
  *  Markus Armbruster <armbru@redhat.com>,
  *
  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  * See the COPYING file in the top-level directory.
  */

 /*
  * Covers only IDE and tests only CMOS contents.  Better than nothing.
  * Improvements welcome.
  */

 #include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "libqtest.h"

 #define ARGV_SIZE 256

 static char *create_test_img(int secs)
 {
     char *template = strdup("/tmp/qtest.XXXXXX");
     int fd, ret;

     fd = mkstemp(template);
     g_assert(fd >= 0);
     ret = ftruncate(fd, (off_t)secs * 512);
     g_assert(ret == 0);
     close(fd);
     return template;
 }

 typedef struct {
     int cyls, heads, secs, trans;
 } CHST;

 typedef enum {
     mbr_blank, mbr_lba, mbr_chs,
     mbr_last
 } MBRcontents;

 typedef enum {
     /* order is relevant */
     backend_small, backend_large, backend_empty,
     backend_last
 } Backend;

 static const int img_secs[backend_last] = {
     [backend_small] = 61440,
     [backend_large] = 8388608,
     [backend_empty] = -1,
 };

 static const CHST hd_chst[backend_last][mbr_last] = {
     [backend_small] = {
         [mbr_blank] = { 60, 16, 63, 0 },
         [mbr_lba]   = { 60, 16, 63, 2 },
         [mbr_chs]   = { 60, 16, 63, 0 }
     },
     [backend_large] = {
         [mbr_blank] = { 8322, 16, 63, 1 },
         [mbr_lba]   = { 8322, 16, 63, 1 },
         [mbr_chs]   = { 8322, 16, 63, 0 }
     },
 };

 static char *img_file_name[backend_last];

 static const CHST *cur_ide[4];

 static bool is_hd(const CHST *expected_chst)
 {
     return expected_chst && expected_chst->cyls;
 }

 static void test_cmos_byte(int reg, int expected)
 {
     enum { cmos_base = 0x70 };
     int actual;

     outb(cmos_base + 0, reg);
     actual = inb(cmos_base + 1);
     g_assert(actual == expected);
 }

 static void test_cmos_bytes(int reg0, int n, uint8_t expected[])
 {
     int i;

     for (i = 0; i < 9; i++) {
         test_cmos_byte(reg0 + i, expected[i]);
     }
 }

 static void test_cmos_disk_data(void)
 {
     test_cmos_byte(0x12,
                    (is_hd(cur_ide[0]) ? 0xf0 : 0) |
                    (is_hd(cur_ide[1]) ? 0x0f : 0));
 }

 static void test_cmos_drive_cyl(int reg0, const CHST *expected_chst)
 {
     if (is_hd(expected_chst)) {
         int c = expected_chst->cyls;
         int h = expected_chst->heads;
         int s = expected_chst->secs;
         uint8_t expected_bytes[9] = {
             c & 0xff, c >> 8, h, 0xff, 0xff, 0xc0 | ((h > 8) << 3),
             c & 0xff, c >> 8, s
         };
         test_cmos_bytes(reg0, 9, expected_bytes);
     } else {
         int i;

         for (i = 0; i < 9; i++) {
             test_cmos_byte(reg0 + i, 0);
         }
     }
 }

 static void test_cmos_drive1(void)
 {
     test_cmos_byte(0x19, is_hd(cur_ide[0]) ? 47 : 0);
     test_cmos_drive_cyl(0x1b, cur_ide[0]);
 }

 static void test_cmos_drive2(void)
 {
     test_cmos_byte(0x1a, is_hd(cur_ide[1]) ? 47 : 0);
     test_cmos_drive_cyl(0x24, cur_ide[1]);
 }

 static void test_cmos_disktransflag(void)
 {
     int val, i;

     val = 0;
     for (i = 0; i < ARRAY_SIZE(cur_ide); i++) {
         if (is_hd(cur_ide[i])) {
             val |= cur_ide[i]->trans << (2 * i);
         }
     }
     test_cmos_byte(0x39, val);
 }

 static void test_cmos(void)
 {
     test_cmos_disk_data();
     test_cmos_drive1();
     test_cmos_drive2();
     test_cmos_disktransflag();
 }

 static int append_arg(int argc, char *argv[], int argv_sz, char *arg)
 {
     g_assert(argc + 1 < argv_sz);
     argv[argc++] = arg;
     argv[argc] = NULL;
     return argc;
 }

 static int setup_common(char *argv[], int argv_sz)
 {
     memset(cur_ide, 0, sizeof(cur_ide));
     return append_arg(0, argv, argv_sz,
                       g_strdup("-nodefaults"));
 }

 static void setup_mbr(int img_idx, MBRcontents mbr)
 {
     static const uint8_t part_lba[16] = {
         /* chs 0,1,1 (lba 63) to chs 0,127,63 (8001 sectors) */
         0x80, 1, 1, 0, 6, 127, 63, 0, 63, 0, 0, 0, 0x41, 0x1F, 0, 0,
     };
     static const uint8_t part_chs[16] = {
         /* chs 0,1,1 (lba 63) to chs 7,15,63 (8001 sectors) */
         0x80, 1, 1, 0, 6,  15, 63, 7, 63, 0, 0, 0, 0x41, 0x1F, 0, 0,
     };
     uint8_t buf[512];
     int fd, ret;

     memset(buf, 0, sizeof(buf));

     if (mbr != mbr_blank) {
         buf[0x1fe] = 0x55;
         buf[0x1ff] = 0xAA;
         memcpy(buf + 0x1BE, mbr == mbr_lba ? part_lba : part_chs, 16);
     }

     fd = open(img_file_name[img_idx], O_WRONLY);
     g_assert(fd >= 0);
     ret = write(fd, buf, sizeof(buf));
     g_assert(ret == sizeof(buf));
     close(fd);
 }

 static int setup_ide(int argc, char *argv[], int argv_sz,
                      int ide_idx, const char *dev, int img_idx,
                      MBRcontents mbr, const char *opts)
 {
     char *s1, *s2, *s3;

     s1 = g_strdup_printf("-drive id=drive%d,if=%s",
                          ide_idx, dev ? "none" : "ide");
     s2 = dev ? g_strdup("") : g_strdup_printf(",index=%d", ide_idx);

     if (img_secs[img_idx] >= 0) {
         setup_mbr(img_idx, mbr);
         s3 = g_strdup_printf(",format=raw,file=%s", img_file_name[img_idx]);
     } else {
         s3 = g_strdup(",media=cdrom");
     }
     argc = append_arg(argc, argv, argv_sz,
                       g_strdup_printf("%s%s%s%s", s1, s2, s3, opts));
     g_free(s1);
     g_free(s2);
     g_free(s3);

     if (dev) {
         argc = append_arg(argc, argv, argv_sz,
                           g_strdup_printf("-device %s,drive=drive%d,"
                                           "bus=ide.%d,unit=%d",
                                           dev, ide_idx,
                                           ide_idx / 2, ide_idx % 2));
     }
     return argc;
 }

 /*
  * Test case: no IDE devices
  */
 static void test_ide_none(void)
 {
     char **argv = g_new0(char *, ARGV_SIZE);
     char *args;

     setup_common(argv, ARGV_SIZE);
     args = g_strjoinv(" ", argv);
     qtest_start(args);
     g_strfreev(argv);
     g_free(args);
     test_cmos();
     qtest_end();
 }

 static void test_ide_mbr(bool use_device, MBRcontents mbr)
 {
     char **argv = g_new0(char *, ARGV_SIZE);
     char *args;
     int argc;
     Backend i;
     const char *dev;

     argc = setup_common(argv, ARGV_SIZE);
     for (i = 0; i < backend_last; i++) {
         cur_ide[i] = &hd_chst[i][mbr];
         dev = use_device ? (is_hd(cur_ide[i]) ? "ide-hd" : "ide-cd") : NULL;
         argc = setup_ide(argc, argv, ARGV_SIZE, i, dev, i, mbr, "");
     }
     args = g_strjoinv(" ", argv);
     qtest_start(args);
     g_strfreev(argv);
     g_free(args);
     test_cmos();
     qtest_end();
 }

 /*
  * Test case: IDE devices (if=ide) with blank MBRs
  */
 static void test_ide_drive_mbr_blank(void)
 {
     test_ide_mbr(false, mbr_blank);
 }

 /*
  * Test case: IDE devices (if=ide) with MBRs indicating LBA is in use
  */
 static void test_ide_drive_mbr_lba(void)
 {
     test_ide_mbr(false, mbr_lba);
 }

 /*
  * Test case: IDE devices (if=ide) with MBRs indicating CHS is in use
  */
 static void test_ide_drive_mbr_chs(void)
 {
     test_ide_mbr(false, mbr_chs);
 }

 /*
  * Test case: IDE devices (if=none) with blank MBRs
  */
 static void test_ide_device_mbr_blank(void)
 {
     test_ide_mbr(true, mbr_blank);
 }

 /*
  * Test case: IDE devices (if=none) with MBRs indicating LBA is in use
  */
 static void test_ide_device_mbr_lba(void)
 {
     test_ide_mbr(true, mbr_lba);
 }

 /*
  * Test case: IDE devices (if=none) with MBRs indicating CHS is in use
  */
 static void test_ide_device_mbr_chs(void)
 {
     test_ide_mbr(true, mbr_chs);
 }

 static void test_ide_drive_user(const char *dev, bool trans)
 {
     char **argv = g_new0(char *, ARGV_SIZE);
     char *args, *opts;
     int argc;
     int secs = img_secs[backend_small];
     const CHST expected_chst = { secs / (4 * 32) , 4, 32, trans };

     argc = setup_common(argv, ARGV_SIZE);
     opts = g_strdup_printf("%s,%s%scyls=%d,heads=%d,secs=%d",
                            dev ?: "",
                            trans && dev ? "bios-chs-" : "",
                            trans ? "trans=lba," : "",
                            expected_chst.cyls, expected_chst.heads,
                            expected_chst.secs);
     cur_ide[0] = &expected_chst;
     argc = setup_ide(argc, argv, ARGV_SIZE,
                      0, dev ? opts : NULL, backend_small, mbr_chs,
                      dev ? "" : opts);
     g_free(opts);
     args = g_strjoinv(" ", argv);
     qtest_start(args);
     g_strfreev(argv);
     g_free(args);
     test_cmos();
     qtest_end();
 }

 /*
  * Test case: IDE device (if=ide) with explicit CHS
  */
 static void test_ide_drive_user_chs(void)
 {
     test_ide_drive_user(NULL, false);
 }

 /*
  * Test case: IDE device (if=ide) with explicit CHS and translation
  */
 static void test_ide_drive_user_chst(void)
 {
     test_ide_drive_user(NULL, true);
 }

 /*
  * Test case: IDE device (if=none) with explicit CHS
  */
 static void test_ide_device_user_chs(void)
 {
     test_ide_drive_user("ide-hd", false);
 }

 /*
  * Test case: IDE device (if=none) with explicit CHS and translation
  */
 static void test_ide_device_user_chst(void)
 {
     test_ide_drive_user("ide-hd", true);
 }

 /*
  * Test case: IDE devices (if=ide), but use index=0 for CD-ROM
  */
 static void test_ide_drive_cd_0(void)
 {
     char **argv = g_new0(char *, ARGV_SIZE);
     char *args;
     int argc, ide_idx;
     Backend i;

     argc = setup_common(argv, ARGV_SIZE);
     for (i = 0; i <= backend_empty; i++) {
         ide_idx = backend_empty - i;
         cur_ide[ide_idx] = &hd_chst[i][mbr_blank];
         argc = setup_ide(argc, argv, ARGV_SIZE,
                          ide_idx, NULL, i, mbr_blank, "");
     }
     args = g_strjoinv(" ", argv);
     qtest_start(args);
     g_strfreev(argv);
     g_free(args);
     test_cmos();
     qtest_end();
 }

 int main(int argc, char **argv)
 {
     Backend i;
     int ret;

     g_test_init(&argc, &argv, NULL);

     for (i = 0; i < backend_last; i++) {
         if (img_secs[i] >= 0) {
             img_file_name[i] = create_test_img(img_secs[i]);
         } else {
             img_file_name[i] = NULL;
         }
     }

     qtest_add_func("hd-geo/ide/none", test_ide_none);
     qtest_add_func("hd-geo/ide/drive/mbr/blank", test_ide_drive_mbr_blank);
     qtest_add_func("hd-geo/ide/drive/mbr/lba", test_ide_drive_mbr_lba);
     qtest_add_func("hd-geo/ide/drive/mbr/chs", test_ide_drive_mbr_chs);
     qtest_add_func("hd-geo/ide/drive/user/chs", test_ide_drive_user_chs);
     qtest_add_func("hd-geo/ide/drive/user/chst", test_ide_drive_user_chst);
     qtest_add_func("hd-geo/ide/drive/cd_0", test_ide_drive_cd_0);
     qtest_add_func("hd-geo/ide/device/mbr/blank", test_ide_device_mbr_blank);
     qtest_add_func("hd-geo/ide/device/mbr/lba", test_ide_device_mbr_lba);
     qtest_add_func("hd-geo/ide/device/mbr/chs", test_ide_device_mbr_chs);
     qtest_add_func("hd-geo/ide/device/user/chs", test_ide_device_user_chs);
     qtest_add_func("hd-geo/ide/device/user/chst", test_ide_device_user_chst);

     ret = g_test_run();

     for (i = 0; i < backend_last; i++) {
         if (img_file_name[i]) {
             unlink(img_file_name[i]);
             free(img_file_name[i]);
         }
     }

     return ret;
 }
	/*
	* Hard disk geometry test cases.
	*
	* Copyright (c) 2012 Red Hat Inc.
	*
	* Authors:
	* Markus Armbruster <armbru@redhat.com>,
	*
	* This work is licensed under the terms of the GNU GPL, version 2 or later.
	* See the COPYING file in the top-level directory.
	*/

	/*
	* Covers only IDE and tests only CMOS contents. Better than nothing.
	* Improvements welcome.
	*/

	#include "qemu/osdep.h"
	#include "qemu-common.h"
	#include "libqtest.h"

	#define ARGV_SIZE 256

	static char *create_test_img(int secs)
	{
	char *template = strdup("/tmp/qtest.XXXXXX");
	int fd, ret;

	fd = mkstemp(template);
	g_assert(fd >= 0);
	ret = ftruncate(fd, (off_t)secs * 512);
	g_assert(ret == 0);
	close(fd);
	return template;
	}

	typedef struct {
	int cyls, heads, secs, trans;
	} CHST;

	typedef enum {
	mbr_blank, mbr_lba, mbr_chs,
	mbr_last
	} MBRcontents;

	typedef enum {
	/* order is relevant */
	backend_small, backend_large, backend_empty,
	backend_last
	} Backend;

	static const int img_secs[backend_last] = {
	[backend_small] = 61440,
	[backend_large] = 8388608,
	[backend_empty] = -1,
	};

	static const CHST hd_chst[backend_last][mbr_last] = {
	[backend_small] = {
	[mbr_blank] = { 60, 16, 63, 0 },
	[mbr_lba] = { 60, 16, 63, 2 },
	[mbr_chs] = { 60, 16, 63, 0 }
	},
	[backend_large] = {
	[mbr_blank] = { 8322, 16, 63, 1 },
	[mbr_lba] = { 8322, 16, 63, 1 },
	[mbr_chs] = { 8322, 16, 63, 0 }
	},
	};

	static char *img_file_name[backend_last];

	static const CHST *cur_ide[4];

	static bool is_hd(const CHST *expected_chst)
	{
	return expected_chst && expected_chst->cyls;
	}

	static void test_cmos_byte(int reg, int expected)
	{
	enum { cmos_base = 0x70 };
	int actual;

	outb(cmos_base + 0, reg);
	actual = inb(cmos_base + 1);
	g_assert(actual == expected);
	}

	static void test_cmos_bytes(int reg0, int n, uint8_t expected[])
	{
	int i;

	for (i = 0; i < 9; i++) {
	test_cmos_byte(reg0 + i, expected[i]);
	}
	}

	static void test_cmos_disk_data(void)
	{
	test_cmos_byte(0x12,
	(is_hd(cur_ide[0]) ? 0xf0 : 0) \|
	(is_hd(cur_ide[1]) ? 0x0f : 0));
	}

	static void test_cmos_drive_cyl(int reg0, const CHST *expected_chst)
	{
	if (is_hd(expected_chst)) {
	int c = expected_chst->cyls;
	int h = expected_chst->heads;
	int s = expected_chst->secs;
	uint8_t expected_bytes[9] = {
	c & 0xff, c >> 8, h, 0xff, 0xff, 0xc0 \| ((h > 8) << 3),
	c & 0xff, c >> 8, s
	};
	test_cmos_bytes(reg0, 9, expected_bytes);
	} else {
	int i;

	for (i = 0; i < 9; i++) {
	test_cmos_byte(reg0 + i, 0);
	}
	}
	}

	static void test_cmos_drive1(void)
	{
	test_cmos_byte(0x19, is_hd(cur_ide[0]) ? 47 : 0);
	test_cmos_drive_cyl(0x1b, cur_ide[0]);
	}

	static void test_cmos_drive2(void)
	{
	test_cmos_byte(0x1a, is_hd(cur_ide[1]) ? 47 : 0);
	test_cmos_drive_cyl(0x24, cur_ide[1]);
	}

	static void test_cmos_disktransflag(void)
	{
	int val, i;

	val = 0;
	for (i = 0; i < ARRAY_SIZE(cur_ide); i++) {
	if (is_hd(cur_ide[i])) {
	val \|= cur_ide[i]->trans << (2 * i);
	}
	}
	test_cmos_byte(0x39, val);
	}

	static void test_cmos(void)
	{
	test_cmos_disk_data();
	test_cmos_drive1();
	test_cmos_drive2();
	test_cmos_disktransflag();
	}

	static int append_arg(int argc, char argv[], int argv_sz, char arg)
	{
	g_assert(argc + 1 < argv_sz);
	argv[argc++] = arg;
	argv[argc] = NULL;
	return argc;
	}

	static int setup_common(char *argv[], int argv_sz)
	{
	memset(cur_ide, 0, sizeof(cur_ide));
	return append_arg(0, argv, argv_sz,
	g_strdup("-nodefaults"));
	}

	static void setup_mbr(int img_idx, MBRcontents mbr)
	{
	static const uint8_t part_lba[16] = {
	/* chs 0,1,1 (lba 63) to chs 0,127,63 (8001 sectors) */
	0x80, 1, 1, 0, 6, 127, 63, 0, 63, 0, 0, 0, 0x41, 0x1F, 0, 0,
	};
	static const uint8_t part_chs[16] = {
	/* chs 0,1,1 (lba 63) to chs 7,15,63 (8001 sectors) */
	0x80, 1, 1, 0, 6, 15, 63, 7, 63, 0, 0, 0, 0x41, 0x1F, 0, 0,
	};
	uint8_t buf[512];
	int fd, ret;

	memset(buf, 0, sizeof(buf));

	if (mbr != mbr_blank) {
	buf[0x1fe] = 0x55;
	buf[0x1ff] = 0xAA;
	memcpy(buf + 0x1BE, mbr == mbr_lba ? part_lba : part_chs, 16);
	}

	fd = open(img_file_name[img_idx], O_WRONLY);
	g_assert(fd >= 0);
	ret = write(fd, buf, sizeof(buf));
	g_assert(ret == sizeof(buf));
	close(fd);
	}

	static int setup_ide(int argc, char *argv[], int argv_sz,
	int ide_idx, const char *dev, int img_idx,
	MBRcontents mbr, const char *opts)
	{
	char s1, s2, *s3;

	s1 = g_strdup_printf("-drive id=drive%d,if=%s",
	ide_idx, dev ? "none" : "ide");
	s2 = dev ? g_strdup("") : g_strdup_printf(",index=%d", ide_idx);

	if (img_secs[img_idx] >= 0) {
	setup_mbr(img_idx, mbr);
	s3 = g_strdup_printf(",format=raw,file=%s", img_file_name[img_idx]);
	} else {
	s3 = g_strdup(",media=cdrom");
	}
	argc = append_arg(argc, argv, argv_sz,
	g_strdup_printf("%s%s%s%s", s1, s2, s3, opts));
	g_free(s1);
	g_free(s2);
	g_free(s3);

	if (dev) {
	argc = append_arg(argc, argv, argv_sz,
	g_strdup_printf("-device %s,drive=drive%d,"
	"bus=ide.%d,unit=%d",
	dev, ide_idx,
	ide_idx / 2, ide_idx % 2));
	}
	return argc;
	}

	/*
	* Test case: no IDE devices
	*/
	static void test_ide_none(void)
	{
	char *argv = g_new0(char , ARGV_SIZE);
	char *args;

	setup_common(argv, ARGV_SIZE);
	args = g_strjoinv(" ", argv);
	qtest_start(args);
	g_strfreev(argv);
	g_free(args);
	test_cmos();
	qtest_end();
	}

	static void test_ide_mbr(bool use_device, MBRcontents mbr)
	{
	char *argv = g_new0(char , ARGV_SIZE);
	char *args;
	int argc;
	Backend i;
	const char *dev;

	argc = setup_common(argv, ARGV_SIZE);
	for (i = 0; i < backend_last; i++) {
	cur_ide[i] = &hd_chst[i][mbr];
	dev = use_device ? (is_hd(cur_ide[i]) ? "ide-hd" : "ide-cd") : NULL;
	argc = setup_ide(argc, argv, ARGV_SIZE, i, dev, i, mbr, "");
	}
	args = g_strjoinv(" ", argv);
	qtest_start(args);
	g_strfreev(argv);
	g_free(args);
	test_cmos();
	qtest_end();
	}

	/*
	* Test case: IDE devices (if=ide) with blank MBRs
	*/
	static void test_ide_drive_mbr_blank(void)
	{
	test_ide_mbr(false, mbr_blank);
	}

	/*
	* Test case: IDE devices (if=ide) with MBRs indicating LBA is in use
	*/
	static void test_ide_drive_mbr_lba(void)
	{
	test_ide_mbr(false, mbr_lba);
	}

	/*
	* Test case: IDE devices (if=ide) with MBRs indicating CHS is in use
	*/
	static void test_ide_drive_mbr_chs(void)
	{
	test_ide_mbr(false, mbr_chs);
	}

	/*
	* Test case: IDE devices (if=none) with blank MBRs
	*/
	static void test_ide_device_mbr_blank(void)
	{
	test_ide_mbr(true, mbr_blank);
	}

	/*
	* Test case: IDE devices (if=none) with MBRs indicating LBA is in use
	*/
	static void test_ide_device_mbr_lba(void)
	{
	test_ide_mbr(true, mbr_lba);
	}

	/*
	* Test case: IDE devices (if=none) with MBRs indicating CHS is in use
	*/
	static void test_ide_device_mbr_chs(void)
	{
	test_ide_mbr(true, mbr_chs);
	}

	static void test_ide_drive_user(const char *dev, bool trans)
	{
	char *argv = g_new0(char , ARGV_SIZE);
	char args, opts;
	int argc;
	int secs = img_secs[backend_small];
	const CHST expected_chst = { secs / (4 * 32) , 4, 32, trans };

	argc = setup_common(argv, ARGV_SIZE);
	opts = g_strdup_printf("%s,%s%scyls=%d,heads=%d,secs=%d",
	dev ?: "",
	trans && dev ? "bios-chs-" : "",
	trans ? "trans=lba," : "",
	expected_chst.cyls, expected_chst.heads,
	expected_chst.secs);
	cur_ide[0] = &expected_chst;
	argc = setup_ide(argc, argv, ARGV_SIZE,
	0, dev ? opts : NULL, backend_small, mbr_chs,
	dev ? "" : opts);
	g_free(opts);
	args = g_strjoinv(" ", argv);
	qtest_start(args);
	g_strfreev(argv);
	g_free(args);
	test_cmos();
	qtest_end();
	}

	/*
	* Test case: IDE device (if=ide) with explicit CHS
	*/
	static void test_ide_drive_user_chs(void)
	{
	test_ide_drive_user(NULL, false);
	}

	/*
	* Test case: IDE device (if=ide) with explicit CHS and translation
	*/
	static void test_ide_drive_user_chst(void)
	{
	test_ide_drive_user(NULL, true);
	}

	/*
	* Test case: IDE device (if=none) with explicit CHS
	*/
	static void test_ide_device_user_chs(void)
	{
	test_ide_drive_user("ide-hd", false);
	}

	/*
	* Test case: IDE device (if=none) with explicit CHS and translation
	*/
	static void test_ide_device_user_chst(void)
	{
	test_ide_drive_user("ide-hd", true);
	}

	/*
	* Test case: IDE devices (if=ide), but use index=0 for CD-ROM
	*/
	static void test_ide_drive_cd_0(void)
	{
	char *argv = g_new0(char , ARGV_SIZE);
	char *args;
	int argc, ide_idx;
	Backend i;

	argc = setup_common(argv, ARGV_SIZE);
	for (i = 0; i <= backend_empty; i++) {
	ide_idx = backend_empty - i;
	cur_ide[ide_idx] = &hd_chst[i][mbr_blank];
	argc = setup_ide(argc, argv, ARGV_SIZE,
	ide_idx, NULL, i, mbr_blank, "");
	}
	args = g_strjoinv(" ", argv);
	qtest_start(args);
	g_strfreev(argv);
	g_free(args);
	test_cmos();
	qtest_end();
	}

	int main(int argc, char **argv)
	{
	Backend i;
	int ret;

	g_test_init(&argc, &argv, NULL);

	for (i = 0; i < backend_last; i++) {
	if (img_secs[i] >= 0) {
	img_file_name[i] = create_test_img(img_secs[i]);
	} else {
	img_file_name[i] = NULL;
	}
	}

	qtest_add_func("hd-geo/ide/none", test_ide_none);
	qtest_add_func("hd-geo/ide/drive/mbr/blank", test_ide_drive_mbr_blank);
	qtest_add_func("hd-geo/ide/drive/mbr/lba", test_ide_drive_mbr_lba);
	qtest_add_func("hd-geo/ide/drive/mbr/chs", test_ide_drive_mbr_chs);
	qtest_add_func("hd-geo/ide/drive/user/chs", test_ide_drive_user_chs);
	qtest_add_func("hd-geo/ide/drive/user/chst", test_ide_drive_user_chst);
	qtest_add_func("hd-geo/ide/drive/cd_0", test_ide_drive_cd_0);
	qtest_add_func("hd-geo/ide/device/mbr/blank", test_ide_device_mbr_blank);
	qtest_add_func("hd-geo/ide/device/mbr/lba", test_ide_device_mbr_lba);
	qtest_add_func("hd-geo/ide/device/mbr/chs", test_ide_device_mbr_chs);
	qtest_add_func("hd-geo/ide/device/user/chs", test_ide_device_user_chs);
	qtest_add_func("hd-geo/ide/device/user/chst", test_ide_device_user_chst);

	ret = g_test_run();

	for (i = 0; i < backend_last; i++) {
	if (img_file_name[i]) {
	unlink(img_file_name[i]);
	free(img_file_name[i]);
	}
	}

	return ret;
	}