xl: dm_restrict: Document that it does not work with PV

Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Reported-by: Roger Pau Monné <roger.pau@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>

diff --git a/docs/man/xl.cfg.pod.5.in b/docs/man/xl.cfg.pod.5.in
index 9b27233095e15316849acaa9054b041f2fb5d89a..b7b91d86274febce3508569c5a149851ecbe57f4 100644 (file)
--- a/docs/man/xl.cfg.pod.5.in
+++ b/docs/man/xl.cfg.pod.5.in
@@ -1270,7 +1270,7 @@ connectors=id0:1920x1080;id1:800x600;id2:640x480
 
 =item B<dm_restrict=BOOLEAN>
 
-Restrict the HVM device model after startup,
+Restrict the device model after startup,
 to limit the consequencese of security vulnerabilities in qemu.
 
 With this feature enabled,
@@ -1285,6 +1285,11 @@ There are some significant limitations:
 
 =item
 
+This is not likely to work at all for PV guests
+nor guests using qdisk backends for their block devices.
+
+=item
+
 You must have a new enough qemu.
 In particular,
 if your qemu does not have the commit