[PATCH v2] libxl: add LIBXL_HAVE_<foo> for outstanding_pages and outstanding_memkb

[Dario Faggioli <dario.faggioli@citrix.com>]

Commits d0782481  ("xl: export 'outstanding_pages' value from xcinfo")
and bec8f17e ("xen: Remove the XENMEM_get_oustanding_pages and provide
the data via xc_phys_info") added these two fields in libxl_physinfo
and in libxl_dominfo, respectively, but did not include the needed
LIBXL_HAVE_<foo> runes. Adding them.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: George Dunlap <george.dunlap@eu.citrix.com>
---
Changes from v1:
 * updated changelog with the summary of the referenced commits
 * updated the code comments as requested during review
---
 tools/libxl/libxl.h |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
index 0bc005e..37e4d82 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -318,6 +318,24 @@
 #define LIBXL_HAVE_NONCONST_EVENT_OCCURS_EVENT_ARG 1
 #endif
 
+/*
+ * LIBXL_HAVE_PHYSINFO_OUTSTANDING_PAGES
+ *
+ * If this is defined, libxl_physinfo structure will contain an uint64 field
+ * called outstanding_pages, containing the number of pages claimed but not
+ * yet allocated for all domains.
+ */
+#define LIBXL_HAVE_PHYSINFO_OUTSTANDING_PAGES 1
+
+/*
+ * LIBXL_HAVE_DOMINFO_OUTSTANDING_MEMKB 1
+ *
+ * If this is defined, libxl_dominfo will contain a MemKB type field called
+ * outstanding_memkb, containing the amount of claimed but not yet allocated
+ * memory for a specific domain.
+ */
+#define LIBXL_HAVE_DOMINFO_OUTSTANDING_MEMKB 1
+
 /* Functions annotated with LIBXL_EXTERNAL_CALLERS_ONLY may not be
  * called from within libxl itself. Callers outside libxl, who
  * do not #include libxl_internal.h, are fine. */