Re: [PATCH v5 13/16] powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX
From: Andreas Schwab <hidden>
Date: 2019-06-15 12:28:55
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On Feb 21 2019, Christophe Leroy [off-list ref] wrote:
quoted hunk
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index a000768a5cc9..6e56a6240bfa 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c@@ -353,7 +353,10 @@ void mark_initmem_nx(void) unsigned long numpages = PFN_UP((unsigned long)_einittext) - PFN_DOWN((unsigned long)_sinittext); - change_page_attr(page, numpages, PAGE_KERNEL); + if (v_block_mapped((unsigned long)_stext) + 1)
That is always true. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."