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[PATCH] x86-64: x86_64 add NX mask for PTE entry
authorbibo,mao <bibo.mao@intel.com>
Sat, 21 Oct 2006 16:37:02 +0000 (18:37 +0200)
committerAndi Kleen <andi@basil.nowhere.org>
Sat, 21 Oct 2006 16:37:02 +0000 (18:37 +0200)
commit7a71cef780404e8c90d23b1131142e158d94354b
tree7e961918153726f031fabd40f2bf695c24cd8c90tree | snapshot
parent690a973f48b6ba2954465992c08e65059c8374fecommit | diff
[PATCH] x86-64: x86_64 add NX mask for PTE entry

    If function change_page_attr_addr calls revert_page to revert
to original pte value, mk_pte_phys does not mask NX bit. If NX bit
is set on no NX hardware supported x86_64 machine, there is will
be RSVD type page fault and system will crash. This patch adds NX
mask bit for PTE entry.

Signed-off-by: bibo,mao <bibo.mao@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
include/asm-x86_64/pgtable.h diff | blob | history
Domain: System / Uncategorized;