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[Xen-devel] [PATCH] Increasing E820MAX


  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Nakajima, Jun" <jun.nakajima@xxxxxxxxx>
  • Date: Wed, 17 Aug 2005 10:21:02 -0700
  • Delivery-date: Wed, 17 Aug 2005 17:19:17 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcWjUAqwGOyUU2P7QwSYVF5NzvJefg==
  • Thread-topic: [PATCH] Increasing E820MAX

We found machines with >32 E820 memory map entries, where Xen fails to
boot (but Linux does boot fine). The native Linux (both x86 and x86_86)
already has:

#define E820MAX 128             /* number of entries in E820MAP */

Signed-off-by: Jun Nakajima <jun.nakajima@xxxxxxxxx>

Jun
---
Intel Open Source Technology Center 

--
diff -r 3bb1857981e6 -r 51e9c0c806b2 xen/include/asm-x86/e820.h
--- a/xen/include/asm-x86/e820.h        Tue Aug 16 19:38:22 2005
+++ b/xen/include/asm-x86/e820.h        Wed Aug 17 17:00:29 2005
@@ -3,7 +3,7 @@
 
 #include <asm/page.h>
 
-#define E820MAX        32
+#define E820MAX        128
 
 #define E820_RAM          1
 #define E820_RESERVED     2

Attachment: e820_h.patch
Description: e820_h.patch

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