This series adds XEN pvSCSI support. With pvSCSI it is possible to use physical SCSI devices from a XEN domain. The support consists of a backend in the privileged Domain-0 doing the real I/O and a frontend in the unprivileged domU passing I/O-requests to the backend. The code is taken (and adapted) from the original pvSCSI implementation done for Linux 2.6 in 2008 by Fujitsu. [PATCH V2 1/4] Add XEN pvSCSI protocol description [PATCH V2 2/4] Introduce xen-scsifront module [PATCH V2 3/4] Introduce XEN scsiback module [PATCH V2 4/4] add xen pvscsi maintainer Changes in V4: - Re-add define for VSCSIIF_ACT_SCSI_SG_PRESET to vscsiif.h to indicate this action value should not be used in future enhancements Changes in V3: - added some comments to the protocol header file - removed the CDB emulation from xen-scsiback, handled by core target infrastructure - several changes in xen-scsifront after comments from Christoph Hellwig Changes in V2: - use core target infrastructure by backend instead of pure SCSI passthrough - add support for larger SG lists by putting them in grant page(s) - add command abort capability -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html