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Fix for hard disk translation hints, by Volker Ruppert.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2297 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-01-05 18:58:34 +00:00
parent 6850dd945e
commit 4dbb0f5006
2 changed files with 17 additions and 5 deletions
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14
hw/ide.c
View File

@ -2069,7 +2069,7 @@ static void ide_init2(IDEState *ide_state,
{
IDEState *s;
static int drive_serial = 1;
int i, cylinders, heads, secs, translation;
int i, cylinders, heads, secs, translation, lba_detected = 0;
int64_t nb_sectors;
for(i = 0; i < 2; i++) {
@ -2083,6 +2083,7 @@ static void ide_init2(IDEState *ide_state,
s->nb_sectors = nb_sectors;
/* if a geometry hint is available, use it */
bdrv_get_geometry_hint(s->bs, &cylinders, &heads, &secs);
translation = bdrv_get_translation_hint(s->bs);
if (cylinders != 0) {
s->cylinders = cylinders;
s->heads = heads;
@ -2093,6 +2094,7 @@ static void ide_init2(IDEState *ide_state,
/* if heads > 16, it means that a BIOS LBA
translation was active, so the default
hardware geometry is OK */
lba_detected = 1;
goto default_geometry;
} else {
s->cylinders = cylinders;
@ -2100,7 +2102,6 @@ static void ide_init2(IDEState *ide_state,
s->sectors = secs;
/* disable any translation to be in sync with
the logical geometry */
translation = bdrv_get_translation_hint(s->bs);
if (translation == BIOS_ATA_TRANSLATION_AUTO) {
bdrv_set_translation_hint(s->bs,
BIOS_ATA_TRANSLATION_NONE);
@ -2117,6 +2118,15 @@ static void ide_init2(IDEState *ide_state,
s->cylinders = cylinders;
s->heads = 16;
s->sectors = 63;
if ((lba_detected == 1) && (translation == BIOS_ATA_TRANSLATION_AUTO)) {
if ((s->cylinders * s->heads) <= 131072) {
bdrv_set_translation_hint(s->bs,
BIOS_ATA_TRANSLATION_LARGE);
} else {
bdrv_set_translation_hint(s->bs,
BIOS_ATA_TRANSLATION_LBA);
}
}
}
bdrv_set_geometry_hint(s->bs, s->cylinders, s->heads, s->sectors);
}

8
vl.h
View File

@ -616,9 +616,11 @@ void bdrv_flush(BlockDriverState *bs);
#define BDRV_TYPE_HD 0
#define BDRV_TYPE_CDROM 1
#define BDRV_TYPE_FLOPPY 2
#define BIOS_ATA_TRANSLATION_AUTO 0
#define BIOS_ATA_TRANSLATION_NONE 1
#define BIOS_ATA_TRANSLATION_LBA 2
#define BIOS_ATA_TRANSLATION_AUTO 0
#define BIOS_ATA_TRANSLATION_NONE 1
#define BIOS_ATA_TRANSLATION_LBA 2
#define BIOS_ATA_TRANSLATION_LARGE 3
#define BIOS_ATA_TRANSLATION_RECHS 4
void bdrv_set_geometry_hint(BlockDriverState *bs,
int cyls, int heads, int secs);