[Xen-devel] [PATCH 3/3] tools: add config parameter for maximum memory of xenstore domain

[Juergen Gross <jgross@xxxxxxxx>]

Add a parameter to xencommons configuration file for specifying the
maximum memory size of the xenstore domain.

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
 tools/hotplug/Linux/init.d/sysconfig.xencommons.in | 11 +++++++++++
 tools/hotplug/Linux/launch-xenstore.in             |  1 +
 2 files changed, 12 insertions(+)

diff --git a/tools/hotplug/Linux/init.d/sysconfig.xencommons.in 
b/tools/hotplug/Linux/init.d/sysconfig.xencommons.in
index cc8185c..92569cd 100644
--- a/tools/hotplug/Linux/init.d/sysconfig.xencommons.in
+++ b/tools/hotplug/Linux/init.d/sysconfig.xencommons.in
@@ -70,6 +70,17 @@ XENSTORED_ARGS=
 #XENSTORE_DOMAIN_SIZE=8
 
 ## Type: string
+## Default: not set, no autoballooning of xenstore domain
+#
+# Maximum xenstore domain memory size. Can be specified as:
+# - plain integer value for max size in MiB
+# - fraction of host memory, e.g. 1/100
+# - combination of both in form of <val>:<frac> (e.g. 8:1/100), resulting
+#   value will be the higher of both specifications
+# Only evaluated if XENSTORETYPE is "domain".
+#XENSTORE_MAX_DOMAIN_SIZE=
+
+## Type: string
 ## Default: ""
 #
 # Additional arguments for starting the xenstore domain.
diff --git a/tools/hotplug/Linux/launch-xenstore.in 
b/tools/hotplug/Linux/launch-xenstore.in
index 46defd6..01193be 100644
--- a/tools/hotplug/Linux/launch-xenstore.in
+++ b/tools/hotplug/Linux/launch-xenstore.in
@@ -75,6 +75,7 @@ test -f @CONFIG_DIR@/@CONFIG_LEAF_DIR@/xencommons && . 
@CONFIG_DIR@/@CONFIG_LEAF
        XENSTORE_DOMAIN_ARGS="$XENSTORE_DOMAIN_ARGS --kernel 
$XENSTORE_DOMAIN_KERNEL"
        [ -z "$XENSTORE_DOMAIN_SIZE" ] && XENSTORE_DOMAIN_SIZE=8
        XENSTORE_DOMAIN_ARGS="$XENSTORE_DOMAIN_ARGS --memory 
$XENSTORE_DOMAIN_SIZE"
+       [ -z "$XENSTORE_MAX_DOMAIN_SIZE" ] || 
XENSTORE_DOMAIN_ARGS="$XENSTORE_DOMAIN_ARGS --maxmem $XENSTORE_MAX_DOMAIN_SIZE"
 
        echo -n Starting $XENSTORE_DOMAIN_KERNEL...
        ${LIBEXEC_BIN}/init-xenstore-domain $XENSTORE_DOMAIN_ARGS || exit 1
-- 
2.6.6


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