428 lines
10 KiB
C
428 lines
10 KiB
C
/*
|
|
* 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(QTestState *qts, int reg, int expected)
|
|
{
|
|
enum { cmos_base = 0x70 };
|
|
int actual;
|
|
|
|
qtest_outb(qts, cmos_base + 0, reg);
|
|
actual = qtest_inb(qts, cmos_base + 1);
|
|
g_assert(actual == expected);
|
|
}
|
|
|
|
static void test_cmos_bytes(QTestState *qts, int reg0, int n,
|
|
uint8_t expected[])
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 9; i++) {
|
|
test_cmos_byte(qts, reg0 + i, expected[i]);
|
|
}
|
|
}
|
|
|
|
static void test_cmos_disk_data(QTestState *qts)
|
|
{
|
|
test_cmos_byte(qts, 0x12,
|
|
(is_hd(cur_ide[0]) ? 0xf0 : 0) |
|
|
(is_hd(cur_ide[1]) ? 0x0f : 0));
|
|
}
|
|
|
|
static void test_cmos_drive_cyl(QTestState *qts, 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(qts, reg0, 9, expected_bytes);
|
|
} else {
|
|
int i;
|
|
|
|
for (i = 0; i < 9; i++) {
|
|
test_cmos_byte(qts, reg0 + i, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void test_cmos_drive1(QTestState *qts)
|
|
{
|
|
test_cmos_byte(qts, 0x19, is_hd(cur_ide[0]) ? 47 : 0);
|
|
test_cmos_drive_cyl(qts, 0x1b, cur_ide[0]);
|
|
}
|
|
|
|
static void test_cmos_drive2(QTestState *qts)
|
|
{
|
|
test_cmos_byte(qts, 0x1a, is_hd(cur_ide[1]) ? 47 : 0);
|
|
test_cmos_drive_cyl(qts, 0x24, cur_ide[1]);
|
|
}
|
|
|
|
static void test_cmos_disktransflag(QTestState *qts)
|
|
{
|
|
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(qts, 0x39, val);
|
|
}
|
|
|
|
static void test_cmos(QTestState *qts)
|
|
{
|
|
test_cmos_disk_data(qts);
|
|
test_cmos_drive1(qts);
|
|
test_cmos_drive2(qts);
|
|
test_cmos_disktransflag(qts);
|
|
}
|
|
|
|
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)
|
|
{
|
|
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", s1, s2, s3));
|
|
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;
|
|
QTestState *qts;
|
|
|
|
setup_common(argv, ARGV_SIZE);
|
|
args = g_strjoinv(" ", argv);
|
|
qts = qtest_init(args);
|
|
g_strfreev(argv);
|
|
g_free(args);
|
|
test_cmos(qts);
|
|
qtest_quit(qts);
|
|
}
|
|
|
|
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;
|
|
QTestState *qts;
|
|
|
|
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);
|
|
qts = qtest_init(args);
|
|
g_strfreev(argv);
|
|
g_free(args);
|
|
test_cmos(qts);
|
|
qtest_quit(qts);
|
|
}
|
|
|
|
/*
|
|
* 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 };
|
|
QTestState *qts;
|
|
|
|
argc = setup_common(argv, ARGV_SIZE);
|
|
opts = g_strdup_printf("%s,%scyls=%d,heads=%d,secs=%d",
|
|
dev, trans ? "bios-chs-trans=lba," : "",
|
|
expected_chst.cyls, expected_chst.heads,
|
|
expected_chst.secs);
|
|
cur_ide[0] = &expected_chst;
|
|
argc = setup_ide(argc, argv, ARGV_SIZE, 0, opts, backend_small, mbr_chs);
|
|
g_free(opts);
|
|
args = g_strjoinv(" ", argv);
|
|
qts = qtest_init(args);
|
|
g_strfreev(argv);
|
|
g_free(args);
|
|
test_cmos(qts);
|
|
qtest_quit(qts);
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
QTestState *qts;
|
|
|
|
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);
|
|
qts = qtest_init(args);
|
|
g_strfreev(argv);
|
|
g_free(args);
|
|
test_cmos(qts);
|
|
qtest_quit(qts);
|
|
}
|
|
|
|
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/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;
|
|
}
|