From: Suresh Siddha Date: Tue, 23 Sep 2008 21:00:37 +0000 (-0700) Subject: x86, cpa: remove USER permission from the very early identity mapping attribute X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=3a85e770aa77e4f1a4096275c97b64c10cd7323e;p=openwrt%2Fstaging%2Fblogic.git x86, cpa: remove USER permission from the very early identity mapping attribute remove USER from the PTE/PDE attributes for the very early identity mapping. We overwrite these mappings with KERNEL attribute later in the boot. Just being paranoid here as there is no need for USER bit to be set. If this breaks something(don't know the history), then we can simply drop this change. Signed-off-by: Suresh Siddha Cc: Suresh Siddha Cc: arjan@linux.intel.com Cc: venkatesh.pallipadi@intel.com Cc: jeremy@goop.org Signed-off-by: Ingo Molnar --- diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h index 0ff73e7737ad..bbf0f591d1b8 100644 --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -138,8 +138,8 @@ #ifdef CONFIG_X86_64 #define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC #else -#define PTE_IDENT_ATTR 0x007 /* PRESENT+RW+USER */ -#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ +#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */ +#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */ #endif