haraldwolff/qemu-patch-raspberry4
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Check that asynchronous (DMA) submission succeeds (Ian Jackson).

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If it does not, abort the command immediately rather than dropping
it on the floor.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5369 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog 2008-10-01 01:43:16 +00:00
parent e162cfb07b
commit 5604e090cb
1 changed files with 10 additions and 0 deletions
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10
hw/ide.c
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@ -738,6 +738,14 @@ static inline void ide_abort_command(IDEState *s)
s->error = ABRT_ERR;
}
static inline void ide_dma_submit_check(IDEState *s,
BlockDriverCompletionFunc *dma_cb, BMDMAState *bm)
{
if (bm->aiocb)
return;
dma_cb(bm, -1);
}
static inline void ide_set_irq(IDEState *s)
{
BMDMAState *bm = s->bmdma;
@ -954,6 +962,7 @@ static void ide_read_dma_cb(void *opaque, int ret)
#endif
bm->aiocb = bdrv_aio_read(s->bs, sector_num, s->io_buffer, n,
ide_read_dma_cb, bm);
ide_dma_submit_check(s, ide_read_dma_cb, bm);
}
static void ide_sector_read_dma(IDEState *s)
@ -1065,6 +1074,7 @@ static void ide_write_dma_cb(void *opaque, int ret)
#endif
bm->aiocb = bdrv_aio_write(s->bs, sector_num, s->io_buffer, n,
ide_write_dma_cb, bm);
ide_dma_submit_check(s, ide_write_dma_cb, bm);
}
static void ide_sector_write_dma(IDEState *s)