[virtio-dev] [PATCH v4 0/2] virtio-fs: add virtio file system device

[Stefan Hajnoczi <stefanha@redhat.com>]

v4:
 * Clarify that there are no request ordering guarantees between requests in a
   single queue [vgoyal]
 * Add explanation of FUSE session endianness detection [dgilbert]

v3:
 * Remove notifications virtqueue, it's unimplemented and can be added when
   needed [Miklos]
 * Add Security Considerations and Live Migration Considerations sections
   [Michael]
v2:
 * Clean up core virtio file system device spec
 * Add DAX window

These patches add the virtio file system device, which is based on Linux FUSE
but includes the DAX window extension.  Similar to virtio-scsi, which
transports SCSI commands, virtio-fs transports FUSE requests and the protocol
documentation is not duplicated here.

The DAX window allows file contents to be accessed directly from shared memory.
This eliminates copying of data, reduces the number of vmexits, and reduces the
guest's memory footprint.  It also allows coherent mmap MAP_SHARED semantics
between guests on the same host.

Stefan Hajnoczi (2):
  content: add virtio file system device
  virtio-fs: add DAX window

 content.tex      |   3 +
 introduction.tex |   3 +
 virtio-fs.tex    | 226 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 232 insertions(+)
 create mode 100644 virtio-fs.tex

-- 
2.20.1


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