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Use PG_RO instead of a magic zero.

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This commit is contained in:
maxv 2016-08-02 13:29:35 +00:00
parent 417e1b99d5
commit d2a4f6b0ae
1 changed files with 5 additions and 5 deletions
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10
sys/arch/xen/x86/x86_xpmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: x86_xpmap.c,v 1.55 2016/08/02 13:25:56 maxv Exp $ */
/* $NetBSD: x86_xpmap.c,v 1.56 2016/08/02 13:29:35 maxv Exp $ */
/*
* Copyright (c) 2006 Mathieu Ropert <mro@adviseo.fr>
@ -69,7 +69,7 @@
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: x86_xpmap.c,v 1.55 2016/08/02 13:25:56 maxv Exp $");
__KERNEL_RCSID(0, "$NetBSD: x86_xpmap.c,v 1.56 2016/08/02 13:29:35 maxv Exp $");
#include "opt_xen.h"
#include "opt_ddb.h"
@ -910,15 +910,15 @@ xen_bootstrap_tables(vaddr_t old_pgd, vaddr_t new_pgd,
pte[pl1_pi(page)] |= PG_k | PG_V;
if (page < text_end) {
/* map kernel text RO */
pte[pl1_pi(page)] |= 0;
pte[pl1_pi(page)] |= PG_RO;
} else if (page >= old_pgd &&
page < old_pgd + (old_count * PAGE_SIZE)) {
/* map old page tables RO */
pte[pl1_pi(page)] |= 0;
pte[pl1_pi(page)] |= PG_RO;
} else if (page >= new_pgd &&
page < new_pgd + ((new_count + l2_4_count) * PAGE_SIZE)) {
/* map new page tables RO */
pte[pl1_pi(page)] |= 0;
pte[pl1_pi(page)] |= PG_RO;
#ifdef i386
} else if (page == (vaddr_t)tmpgdt) {
/*