Revision c717d8bf hw/ide.c
| b/hw/ide.c | ||
|---|---|---|
| 2474 | 2474 |
static int guess_disk_lchs(IDEState *s, |
| 2475 | 2475 |
int *pcylinders, int *pheads, int *psectors) |
| 2476 | 2476 |
{
|
| 2477 |
uint8_t *buf; |
|
| 2477 |
uint8_t *buf = s->io_buffer;
|
|
| 2478 | 2478 |
int ret, i, heads, sectors, cylinders; |
| 2479 | 2479 |
struct partition *p; |
| 2480 | 2480 |
uint32_t nr_sects; |
| 2481 | 2481 |
|
| 2482 |
buf = qemu_memalign(512, 512); |
|
| 2483 |
if (buf == NULL) |
|
| 2484 |
return -1; |
|
| 2485 | 2482 |
ret = bdrv_read(s->bs, 0, buf, 1); |
| 2486 | 2483 |
if (ret < 0) {
|
| 2487 |
qemu_free(buf); |
|
| 2488 | 2484 |
return -1; |
| 2489 | 2485 |
} |
| 2490 | 2486 |
/* test msdos magic */ |
| 2491 | 2487 |
if (buf[510] != 0x55 || buf[511] != 0xaa) {
|
| 2492 |
qemu_free(buf); |
|
| 2493 | 2488 |
return -1; |
| 2494 | 2489 |
} |
| 2495 | 2490 |
for(i = 0; i < 4; i++) {
|
| ... | ... | |
| 2512 | 2507 |
printf("guessed geometry: LCHS=%d %d %d\n",
|
| 2513 | 2508 |
cylinders, heads, sectors); |
| 2514 | 2509 |
#endif |
| 2515 |
qemu_free(buf); |
|
| 2516 | 2510 |
return 0; |
| 2517 | 2511 |
} |
| 2518 | 2512 |
} |
| 2519 |
qemu_free(buf); |
|
| 2520 | 2513 |
return -1; |
| 2521 | 2514 |
} |
| 2522 | 2515 |
|
Also available in: Unified diff