Revision f0c596cb hw/ide.c
b/hw/ide.c | ||
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864 | 864 |
ide_set_irq(s); |
865 | 865 |
} |
866 | 866 |
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static void ide_sector_write_aio_cb(void *opaque, int ret) |
|
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{ |
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BMDMAState *bm = opaque; |
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IDEState *s = bm->ide_if; |
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|
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#ifdef TARGET_I386 |
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if (win2k_install_hack && ((++s->irq_count % 16) == 0)) { |
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/* It seems there is a bug in the Windows 2000 installer HDD |
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IDE driver which fills the disk with empty logs when the |
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IDE write IRQ comes too early. This hack tries to correct |
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that at the expense of slower write performances. Use this |
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option _only_ to install Windows 2000. You must disable it |
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for normal use. */ |
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qemu_mod_timer(s->sector_write_timer, |
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qemu_get_clock(vm_clock) + (ticks_per_sec / 1000)); |
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} else |
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#endif |
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{ |
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ide_set_irq(s); |
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} |
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bm->aiocb = NULL; |
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} |
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|
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867 | 890 |
static void ide_sector_write(IDEState *s) |
868 | 891 |
{ |
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BMDMAState *bm; |
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869 | 893 |
int64_t sector_num; |
870 |
int ret, n, n1; |
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int n, n1; |
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|
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s->io_buffer_index = 0; |
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s->io_buffer_size = 0; |
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bm = s->bmdma; |
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if(bm == NULL) { |
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bm = qemu_mallocz(sizeof(BMDMAState)); |
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s->bmdma = bm; |
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} |
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bm->ide_if = s; |
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bm->dma_cb = ide_sector_write_aio_cb; |
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871 | 905 |
|
872 | 906 |
s->status = READY_STAT | SEEK_STAT; |
873 | 907 |
sector_num = ide_get_sector(s); |
... | ... | |
877 | 911 |
n = s->nsector; |
878 | 912 |
if (n > s->req_nb_sectors) |
879 | 913 |
n = s->req_nb_sectors; |
880 |
ret = bdrv_write(s->bs, sector_num, s->io_buffer, n); |
|
881 | 914 |
s->nsector -= n; |
882 | 915 |
if (s->nsector == 0) { |
883 | 916 |
/* no more sectors to write */ |
... | ... | |
890 | 923 |
} |
891 | 924 |
ide_set_sector(s, sector_num + n); |
892 | 925 |
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#ifdef TARGET_I386 |
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if (win2k_install_hack && ((++s->irq_count % 16) == 0)) { |
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895 |
/* It seems there is a bug in the Windows 2000 installer HDD |
|
896 |
IDE driver which fills the disk with empty logs when the |
|
897 |
IDE write IRQ comes too early. This hack tries to correct |
|
898 |
that at the expense of slower write performances. Use this |
|
899 |
option _only_ to install Windows 2000. You must disable it |
|
900 |
for normal use. */ |
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901 |
qemu_mod_timer(s->sector_write_timer, |
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qemu_get_clock(vm_clock) + (ticks_per_sec / 1000)); |
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} else |
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#endif |
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{ |
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ide_set_irq(s); |
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} |
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bm->aiocb = bdrv_aio_write(s->bs, sector_num, s->io_buffer, n, |
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ide_sector_write_aio_cb, bm); |
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908 | 928 |
} |
909 | 929 |
|
910 | 930 |
/* XXX: handle errors */ |
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