From a77eb86f44e52c5aea7f0ba7023600c043a9cdcd Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Mon, 14 Oct 2013 10:25:39 +0200 Subject: 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 Acked-by: Ian Campbell Acked-by: Keir Fraser --- tools/libxl/libxl.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'tools/libxl/libxl.h') diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h index c9d9535b32..1c6675d0da 100644 --- a/tools/libxl/libxl.h +++ b/tools/libxl/libxl.h @@ -89,6 +89,11 @@ */ #define LIBXL_HAVE_BUILDINFO_HVM_VENDOR_DEVICE 1 +/* + * The libxl_domain_build_info has the event_channels field. + */ +#define LIBXL_HAVE_BUILDINFO_EVENT_CHANNELS 1 + /* * libxl ABI compatibility * -- cgit v1.2.3