[Qemu-devel] [PATCH 0/3] virtio-blk: Suppress error action on r/w beyond end

[Markus Armbruster <armbru@redhat.com>]

When a device model's I/O operation fails, we execute the error
action.  This lets layers above QEMU implement thin provisioning, or
attempt to correct errors before they reach the guest.  But when the
I/O operation fails because its invalid, reporting the error to the
guest is the only sensible action.

This short series does exactly that for virtio-blk.  I intend to do
the same for IDE and SCSI.

Markus Armbruster (3):
  virtio-blk: Factor common checks out of virtio_blk_handle_read/write()
  virtio-blk: Bypass error action and I/O accounting on invalid r/w
  virtio-blk: Treat read/write beyond end as invalid

 hw/block/virtio-blk.c | 45 +++++++++++++++++++++++++++++----------------
 1 file changed, 29 insertions(+), 16 deletions(-)

-- 
1.9.3