> * A filesystem in Guest that is integrity-aware can prepare I/Os with > metadata attached. > * Filesystems in Guest are capable of transferring metadata from user space. > Those metadata get lost if we don't pass them through in blkfront. > > You may have a look at: > [1] http://lwn.net/Articles/280023/ > [2] https://www.kernel.org/doc/Documentation/block/data-integrity.txt
And Google for SCSI DIF/DIX which can give you some ideas. There is also this slide-deck: https://oss.oracle.com/~mkp/docs/ols2008-slides.pdf Also note that some devices (like NVMe) also implement some of this: http://www.flashmemorysummit.com/English/Collaterals/Proceedings/2014/20140804_Seminar_F_Busch.pdf _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
