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[Xen-devel] [patch] pae: fix fixme ;)

from [Gerd Knorr]

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Subject:	[Xen-devel] [patch] pae: fix fixme ;)
From:	Gerd Knorr <kraxel@xxxxxxx>
Date:	Mon, 8 Aug 2005 16:55:09 +0200
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  Hi,

That one is obviously needed to make pae xen-linux work with
more than 4GB.

  Gerd

diff -urp 
xen-2005-08-08-vanilla/linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgtable-3level.h
 xen-2005-08-08/linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgtable-3level.h
--- 
xen-2005-08-08-vanilla/linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgtable-3level.h
       2005-07-13 15:06:39.000000000 +0200
+++ 
xen-2005-08-08/linux-2.6-xen-sparse/include/asm-xen/asm-i386/pgtable-3level.h   
    2005-08-08 15:03:05.000000000 +0200
@@ -132,7 +132,8 @@ static inline int pte_none(pte_t pte)
 
 #define INVALID_P2M_ENTRY (~0U)
 #define FOREIGN_FRAME(_m) ((_m) | (1UL<<((sizeof(unsigned long)*8)-1)))
-#define pte_mfn(_pte) ((_pte).pte_low >> PAGE_SHIFT) /* FIXME */
+#define pte_mfn(_pte) ( ((_pte).pte_low >> PAGE_SHIFT) |\
+                       (((_pte).pte_high & 0xfff) << (32-PAGE_SHIFT)) )
 #define pte_pfn(_pte)                                                  \
 ({                                                                     \
        unsigned long mfn = pte_mfn(_pte);                              \

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