virtio-blk: Fix migration of queued requests
in_sg[].iovec and out_sg[].ioved are pointer to (source) host memory and therefore invalid after migration. When loading the device state we must create a new mapping on the destination host. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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@ -481,6 +481,11 @@ static int virtio_blk_load(QEMUFile *f, void *opaque, int version_id)
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qemu_get_buffer(f, (unsigned char*)&req->elem, sizeof(req->elem));
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req->next = s->rq;
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s->rq = req;
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virtqueue_map_sg(req->elem.in_sg, req->elem.in_addr,
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req->elem.in_num, 1);
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virtqueue_map_sg(req->elem.out_sg, req->elem.out_addr,
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req->elem.out_num, 0);
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}
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return 0;
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