[XEN] Update comments in elfnote.h interface header.

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>

diff --git a/xen/include/public/elfnote.h b/xen/include/public/elfnote.h
index 4924767d30ee90eaf6c4ebca4812edfd35738343..3d9b988dcaff1826f24e01a8875362bf3edacbdd 100644 (file)
--- a/xen/include/public/elfnote.h
+++ b/xen/include/public/elfnote.h
@@ -40,8 +40,6 @@
 
 /*
  * NAME=VALUE pair (string).
- *
- * LEGACY: FEATURES and PAE
  */
 #define XEN_ELFNOTE_INFO           0
 
@@ -108,7 +106,12 @@
 #define XEN_ELFNOTE_LOADER         8
 
 /*
- * The kernel supports PAE (x86/32 only, string = "yes" or "no").
+ * The kernel supports PAE (x86/32 only, string = "yes", "no" or
+ * "bimodal").
+ *
+ * For compatibility with Xen 3.0.3 and earlier the "bimodal" setting
+ * may be given as "yes,bimodal" which will cause older Xen to treat
+ * this kernel as PAE.
  *
  * LEGACY: PAE (n.b. The legacy interface included a provision to
  * indicate 'extended-cr3' support allowing L3 page tables to be