diff options
| -rw-r--r-- | hw/ide.c | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -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) |