[Xen-devel] [PATCH] linux/i386: widen physical address range

["Jan Beulich" <jbeulich@xxxxxxxxxx>]

32on64 supports 168Gb for 32-bit guests, hence at least 38 bits must be
specified here. The foreign frame bit is MFN bit 31, so the maximum
valid value here would be 43.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

Index: sle10sp1-2007-01-22/include/asm-i386/mach-xen/asm/page.h
===================================================================
--- sle10sp1-2007-01-22.orig/include/asm-i386/mach-xen/asm/page.h       
2007-01-22 09:42:04.000000000 +0100
+++ sle10sp1-2007-01-22/include/asm-i386/mach-xen/asm/page.h    2007-01-22 
09:55:48.000000000 +0100
@@ -7,7 +7,7 @@
 #define PAGE_MASK      (~(PAGE_SIZE-1))
 
 #ifdef CONFIG_X86_PAE
-#define __PHYSICAL_MASK_SHIFT  36
+#define __PHYSICAL_MASK_SHIFT  40
 #define __PHYSICAL_MASK                ((1ULL << __PHYSICAL_MASK_SHIFT) - 1)
 #define PHYSICAL_PAGE_MASK     (~((1ULL << PAGE_SHIFT) - 1) & __PHYSICAL_MASK)
 #else


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel