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authorDavid Vrabel <david.vrabel@citrix.com>2013-10-14 10:25:39 +0200
committerJan Beulich <jbeulich@suse.com>2013-10-14 10:25:39 +0200
commita77eb86f44e52c5aea7f0ba7023600c043a9cdcd (patch)
treef999a21db3c0a9f170ce107b5a609ba2c74c1e6e /tools/libxl/xl_cmdimpl.c
parent783b9e67f963bbb068b68fea4426131858145b0f (diff)
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libxl,xl: add max_event_channels option to xl configuration file
Add the 'max_event_channels' option to the xl configuration file to limit the number of event channels that domain may use. Plumb this option through to libxl via a new libxl_build_info field and call xc_domain_set_max_evtchn() in the post build stage of domain creation. A new LIBXL_HAVE_BUILDINFO_EVENT_CHANNELS #define indicates that this new field is available. The default value of 1023 limits the domain to using the minimum amount of global mapping pages and at most 5 xenheap pages. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'tools/libxl/xl_cmdimpl.c')
-rw-r--r--tools/libxl/xl_cmdimpl.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index 14bb385f1a..a8261be048 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -845,6 +845,9 @@ static void parse_config_data(const char *config_source,
if (!xlu_cfg_get_long (config, "videoram", &l, 0))
b_info->video_memkb = l * 1024;
+ if (!xlu_cfg_get_long(config, "max_event_channels", &l, 0))
+ b_info->event_channels = l;
+
switch(b_info->type) {
case LIBXL_DOMAIN_TYPE_HVM:
if (!xlu_cfg_get_string (config, "kernel", &buf, 0))