Commit 414ebf14 authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Dave Hansen
Browse files

x86/mm: Do verify W^X at boot up 



Straight up revert of commit:

  a970174d ("x86/mm: Do not verify W^X at boot up")

now that the root cause has been fixed.

Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221025201058.011279208@infradead.org
parent eb7d389d

arch/x86/mm/pat/set_memory.c

+0 −4
Original line number Diff line number Diff line
@@ -587,10 +587,6 @@ static inline pgprot_t verify_rwx(pgprot_t old, pgprot_t new, unsigned long star 
{

	unsigned long end;



	/* Kernel text is rw at boot up */

	if (system_state == SYSTEM_BOOTING)

		return new;



	/*

	 * 32-bit has some unfixable W+X issues, like EFI code

	 * and writeable data being in the same page.  Disable