Commit 0816b2ea authored by Huacai Chen's avatar Huacai Chen
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LoongArch: Add pgprot_nx() implementation 



Commit cca98e9f ("mm: enforce that vmap can't map pages
executable") enforces the W^X protection by not allowing remapping
existing pages as executable. Add LoongArch bits so that LoongArch
can benefit the same protection.

Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 613d4164

arch/loongarch/include/asm/pgtable-bits.h

+7 −0
Original line number Diff line number Diff line
@@ -96,6 +96,13 @@ 


#define _PAGE_IOREMAP		pgprot_val(PAGE_KERNEL_SUC)



#define pgprot_nx pgprot_nx



static inline pgprot_t pgprot_nx(pgprot_t _prot)

{

	return __pgprot(pgprot_val(_prot) | _PAGE_NO_EXEC);

}



#define pgprot_noncached pgprot_noncached



static inline pgprot_t pgprot_noncached(pgprot_t _prot)