xen: reserve Xen start_info rather than e820 reserving

Use reserve_early rather than e820 reservations for Xen start info and mfn->pfn
table, so that the memory use is a bit more self-documenting.

[ Impact: cleanup ]

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Xen-devel <xen-devel@lists.xensource.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <4A032EF1.6070708@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 15c6c68db6a25f4941d25e8fc35857a3d518dc5d..ad0047f47cd476004c99485877f6d62a7db20d86 100644 (file)
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -61,9 +61,9 @@ char * __init xen_memory_setup(void)
         *  - xen_start_info
         * See comment above "struct start_info" in <xen/interface/xen.h>
         */
-       e820_add_region(__pa(xen_start_info->mfn_list),
-                       xen_start_info->pt_base - xen_start_info->mfn_list,
-                       E820_RESERVED);
+       reserve_early(__pa(xen_start_info->mfn_list),
+                     __pa(xen_start_info->pt_base),
+                       "XEN START INFO");
 
        sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);