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| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-06-03 14:17:19 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-07-04 17:42:30 +0200 |
| commit | f487b677c2dc15786dbe7c61326cc49e7c64daea (patch) | |
| tree | fedfbfc9a8476c8d76b8723a22e6dc0e4430bda3 /hw/scsi | |
| parent | cac3c384bb986f06a308e551641284586924813c (diff) | |
| download | qemu-f487b677c2dc15786dbe7c61326cc49e7c64daea.zip qemu-f487b677c2dc15786dbe7c61326cc49e7c64daea.tar.gz qemu-f487b677c2dc15786dbe7c61326cc49e7c64daea.tar.bz2 | |
dma: keep a device alive while it has SGLists
Reviewed-by: Anthony Liguori <aliguori@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/scsi')
| -rw-r--r-- | hw/scsi/virtio-scsi.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index b8a0abf..712f0ad 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -77,10 +77,12 @@ static void virtio_scsi_bad_req(void) exit(1); } -static void qemu_sgl_init_external(QEMUSGList *qsgl, struct iovec *sg, +static void qemu_sgl_init_external(VirtIOSCSIReq *req, struct iovec *sg, hwaddr *addr, int num) { - qemu_sglist_init(qsgl, num, &address_space_memory); + QEMUSGList *qsgl = &req->qsgl; + + qemu_sglist_init(qsgl, DEVICE(req->dev), num, &address_space_memory); while (num--) { qemu_sglist_add(qsgl, *(addr++), (sg++)->iov_len); } @@ -99,11 +101,11 @@ static void virtio_scsi_parse_req(VirtIOSCSI *s, VirtQueue *vq, req->resp.buf = req->elem.in_sg[0].iov_base; if (req->elem.out_num > 1) { - qemu_sgl_init_external(&req->qsgl, &req->elem.out_sg[1], + qemu_sgl_init_external(req, &req->elem.out_sg[1], &req->elem.out_addr[1], req->elem.out_num - 1); } else { - qemu_sgl_init_external(&req->qsgl, &req->elem.in_sg[1], + qemu_sgl_init_external(req, &req->elem.in_sg[1], &req->elem.in_addr[1], req->elem.in_num - 1); } |