qemu-e2k/hw/block/dataplane
Paolo Bonzini 2a6cdd6d35 virtio-blk: correctly dirty guest memory
After qemu_iovec_destroy, the QEMUIOVector's size is zeroed and
the zero size ultimately is used to compute virtqueue_push's len
argument.  Therefore, reads from virtio-blk devices did not
migrate their results correctly.  (Writes were okay).

Save the size in virtio_blk_handle_request, and use it when the request
is completed.

Based on a patch by Wen Congyang.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Message-id: 1427997044-392-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-04-08 10:39:18 +01:00
..
Makefile.objs dataplane: delete IOQueue since it is no longer used 2014-06-04 09:56:12 +02:00
virtio-blk.c virtio-blk: correctly dirty guest memory 2015-04-08 10:39:18 +01:00
virtio-blk.h virtio-blk: Rename VirtIOBlkConf variables to conf 2014-10-20 14:02:21 +02:00