[Xen-devel] [PATCH V5 0/5] Add XEN pvSCSI support

[jgross@xxxxxxxx]

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 V5 1/5] xen/events: support threaded irqs for interdomain event channels
[PATCH V5 2/5] Add XEN pvSCSI protocol description
[PATCH V5 3/5] Introduce xen-scsifront module
[PATCH V5 4/5] Introduce XEN scsiback module
[PATCH V5 5/5] add xen pvscsi maintainer

Changes in V5:
- Added patch to support threaded irqs for interdomain event channels
- several changes in xen-scsifront after comments from Christoph Hellwig
- several changes in xen-scsiback after comments from Christoph Hellwig
- several changes in xen-scsiback after comments from James Bottomley

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


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