Module Name: src
Committed By: ryo
Date: Sun May 20 06:45:00 UTC 2018
Modified Files:
src/sys/arch/aarch64/aarch64: pmap.c
Log Message:
pmap_enter() must update modified/referenced flags by 'flags' not 'prot'.
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/aarch64/aarch64/pmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/aarch64/aarch64/pmap.c
diff -u src/sys/arch/aarch64/aarch64/pmap.c:1.6 src/sys/arch/aarch64/aarch64/pmap.c:1.7
--- src/sys/arch/aarch64/aarch64/pmap.c:1.6 Wed May 16 08:32:07 2018
+++ src/sys/arch/aarch64/aarch64/pmap.c Sun May 20 06:45:00 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.6 2018/05/16 08:32:07 ryo Exp $ */
+/* $NetBSD: pmap.c,v 1.7 2018/05/20 06:45:00 ryo Exp $ */
/*
* Copyright (c) 2017 Ryo Shimizu <r...@nerv.org>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.6 2018/05/16 08:32:07 ryo Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.7 2018/05/20 06:45:00 ryo Exp $");
#include "opt_arm_debug.h"
#include "opt_ddb.h"
@@ -1436,17 +1436,10 @@ _pmap_enter(struct pmap *pm, vaddr_t va,
"pmap_enter: failed to allocate pv_entry");
}
- if (flags & PMAP_WIRED) {
- /*
- * initial value of ref/mod are equal to prot,
- * and pte RW are same as prot.
- */
- VM_PAGE_TO_MD(pg)->mdpg_flags |=
- (prot & mdattr);
- } else {
- /* pte RW will be masked by ref/mod for ref/mod emul */
- mdattr &= VM_PAGE_TO_MD(pg)->mdpg_flags;
- }
+ /* update referenced/modified flags */
+ VM_PAGE_TO_MD(pg)->mdpg_flags |=
+ (flags & (VM_PROT_READ | VM_PROT_WRITE));
+ mdattr &= VM_PAGE_TO_MD(pg)->mdpg_flags;
}
#ifdef PMAPCOUNTERS
