From: Wei Liu <wei.liu2@citrix.com>
Date: Tue, 7 Jul 2015 15:48:52 +0000 (+0100)
Subject: blkif.h: document physical-device node
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~2669
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=3e791ccb1d1d036ed25e880b1ef72ea8dcabe43a;p=xen.git

blkif.h: document physical-device node

This node is used by toolstack (libxl, hotplug script) and blkback.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
---

diff --git a/xen/include/public/io/blkif.h b/xen/include/public/io/blkif.h
index 6baf7fb519..8f0f9a604e 100644
--- a/xen/include/public/io/blkif.h
+++ b/xen/include/public/io/blkif.h
@@ -92,6 +92,12 @@
  *      backend driver to open the backing device.  (e.g. the path to the
  *      file or block device representing the backing store.)
  *
+ * physical-device
+ *      Values:         "MAJOR:MINOR"
+ *
+ *      MAJOR and MINOR are the major number and minor number of the
+ *      backing device respectively.
+ *
  * type
  *      Values:         "file", "phy", "tap"
  *