Revision c87c0672 hw/ide.c

b/hw/ide.c
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    IDEState *ide_if;
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    BlockDriverCompletionFunc *dma_cb;
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    BlockDriverAIOCB *aiocb;
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    struct iovec iov;
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    QEMUIOVector qiov;
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    int64_t sector_num;
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    uint32_t nsector;
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} BMDMAState;
......
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#ifdef DEBUG_AIO
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    printf("aio_read_cd: lba=%u n=%d\n", s->lba, n);
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#endif
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    bm->aiocb = bdrv_aio_read(s->bs, (int64_t)s->lba << 2,
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                              s->io_buffer + data_offset, n * 4,
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                              ide_atapi_cmd_read_dma_cb, bm);
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    bm->iov.iov_base = s->io_buffer + data_offset;
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    bm->iov.iov_len = n * 4 * 512;
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    qemu_iovec_init_external(&bm->qiov, &bm->iov, 1);
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    bm->aiocb = bdrv_aio_readv(s->bs, (int64_t)s->lba << 2, &bm->qiov,
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                               n * 4, ide_atapi_cmd_read_dma_cb, bm);
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    if (!bm->aiocb) {
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        /* Note: media not present is the most likely case */
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        ide_atapi_cmd_error(s, SENSE_NOT_READY,

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