[Xen-devel] [PATCH] docs: document ~/control/sysrq

[Wei Liu <wei.liu2@xxxxxxxxxx>]

Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
---
 docs/misc/xenstore-paths.markdown | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/docs/misc/xenstore-paths.markdown 
b/docs/misc/xenstore-paths.markdown
index 60c8b3fbe5..33d281915c 100644
--- a/docs/misc/xenstore-paths.markdown
+++ b/docs/misc/xenstore-paths.markdown
@@ -410,6 +410,14 @@ by udev ("0") or will be run by the toolstack directly 
("1").
 
 ### Platform Feature and Control Paths
 
+#### ~/control/sysrq = (""|COMMAND) [w]
+
+This is the PV SysRq control node. A toolstack can write a single character
+representing a magic SysRq key understood by the Linux kernel.  The guest
+acknowledges a request by writing the empty string back to the command node.
+
+This protocol is Linux only.
+
 #### ~/control/shutdown = (""|COMMAND) [w]
 
 This is the PV shutdown control node. A toolstack can write various
-- 
2.11.0


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