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x86: split NX setup into separate file to limit unstack-protected code

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Move the NX setup into a separate file so that it can be compiled
without stack-protection while leaving the rest of the mm/init code
protected.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge
2009-09-21 13:40:42 -07:00
parent b75fe4e5b8
commit c44c9ec0f3
4 changed files with 72 additions and 65 deletions
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arch/x86/include/asm/pgtable_types.h
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@@ -277,6 +277,7 @@ static inline pteval_t pte_flags(pte_t pte)
typedef struct page *pgtable_t;
extern pteval_t __supported_pte_mask;
extern void set_nx(void);
extern int nx_enabled;
#define pgprot_writecombine pgprot_writecombine