[PATCH v4 15/20] block/xen-blkfront: Make it running on 64KB page granularity

2015-09-07 Thread Julien Grall
The PV block protocol is using 4KB page granularity. The goal of this patch is to allow a Linux using 64KB page granularity using block device on a non-modified Xen. The block API is using segment which should at least be the size of a Linux page. Therefore, the driver will have to break the page

[PATCH v4 15/20] block/xen-blkfront: Make it running on 64KB page granularity

2015-09-07 Thread Julien Grall
The PV block protocol is using 4KB page granularity. The goal of this patch is to allow a Linux using 64KB page granularity using block device on a non-modified Xen. The block API is using segment which should at least be the size of a Linux page. Therefore, the driver will have to break the page