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[Xen-devel] [PATCH 5/5] xen: reserve Xen start_info rather than e820 res

To: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] [PATCH 5/5] xen: reserve Xen start_info rather than e820 reserving
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Thu, 07 May 2009 11:56:49 -0700
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
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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.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
---
arch/x86/xen/setup.c |    6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 15c6c68..ad0047f 100644
--- 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);

--
1.6.0.6




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