Revision 40b6ecc6 hw/pc.c
| b/hw/pc.c | ||
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| 215 | 215 |
cmos_init_hd(0x1a, 0x24, hd_table[1]); |
| 216 | 216 |
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val = 0; |
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for (i = 0; i < 4; i++) |
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for (i = 0; i < 4; i++) {
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if (hd_table[i]) {
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int cylinders, heads, sectors; |
| 221 | 221 |
uint8_t translation; |
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/* NOTE: bdrv_get_geometry_hint() returns the geometry |
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that the hard disk returns. It is always such that: 1 <= |
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sects <= 63, 1 <= heads <= 16, 1 <= cylinders <= |
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16383. The BIOS geometry can be different. */ |
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| 223 | 226 |
bdrv_get_geometry_hint(hd_table[i], &cylinders, &heads, §ors); |
| 224 | 227 |
if (cylinders <= 1024 && heads <= 16 && sectors <= 63) {
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| 225 | 228 |
/* No translation. */ |
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translation = 0; |
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} else if (cylinders * heads > 131072) {
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} else {
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/* LBA translation. */ |
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translation = 1; |
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} else {
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/* LARGE translation. */ |
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translation = 2; |
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} |
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val |= translation << (i * 2); |
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} |
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} |
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rtc_set_memory(s, 0x39, val); |
| 238 | 238 |
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| 239 | 239 |
/* Disable check of 0x55AA signature on the last two bytes of |
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