RE: [virtio-comment] [PATCH] virtio-blk: add secure discard feature to specification

["Qi, Yadong" <yadong.qi@intel.com>]

> > +\item[VIRTIO_BLK_F_SECDISCARD (16)] Device can support secure discard
> command,
> > +    share the same maximum discard sectors size and discard segment number
> with
> > +    VIRTIO_BLK_F_DISCARD. Maximum discard sectors size in
> > +    \field{max_discard_sectors} and maximum discard segment number in
> > +    \field{max_discard_seg}.
> 
> Christoph suggested separate queue limits for secdiscard. Please include this in
> the spec from the start.
> 
> If the guest operating system does not support that and the secdiscard queue
> limits reported by the device are different from the discard limits, then the driver
> can disable secdiscard.
> 
> This way virtio-blk is future-proof and can also act as the first Linux driver to use
> secdiscard queue limits.
> 
Hi, Hajnoczi and Hellwig
Do you mean to define a new field like {max_secdiscard_sectors} which differ
with {max_discard_sectors}?