[src/trunk]: src/sys/arch/arm/arm Change to the KVA stack address straight af...

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f5794aee033a
branches:  trunk
changeset: 975404:f5794aee033a
user:      skrll <skrll%NetBSD.org@localhost>
date:      Fri Aug 28 13:00:29 2020 +0000

description:
Change to the KVA stack address straight after the MMU is turned on

diffstat:

 sys/arch/arm/arm/armv6_start.S |  10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diffs (38 lines):

diff -r b15b1e41ead0 -r f5794aee033a sys/arch/arm/arm/armv6_start.S
--- a/sys/arch/arm/arm/armv6_start.S    Fri Aug 28 12:59:36 2020 +0000
+++ b/sys/arch/arm/arm/armv6_start.S    Fri Aug 28 13:00:29 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: armv6_start.S,v 1.24 2020/08/28 12:56:19 skrll Exp $   */
+/*     $NetBSD: armv6_start.S,v 1.25 2020/08/28 13:00:29 skrll Exp $   */
 
 /*-
  * Copyright (c) 2012, 2017, 2018 The NetBSD Foundation, Inc.
@@ -467,6 +467,9 @@
        b       armv7_mmuinit
 
 generic_vstartv7:
+       // Stack to KVA address
+       add     sp, sp, R_VTOPDIFF
+
        VPRINTF("virtual\n\r")
 
 #if defined(KASAN)
@@ -521,6 +524,9 @@
        b       armv6_mmuinit
 
 generic_vstartv6:
+       // Stack to KVA address
+       add     sp, sp, R_VTOPDIFF
+
        VPRINTF("virtual\n\r")
 
 #if defined(KASAN)
@@ -882,7 +888,7 @@
  * Now running with real kernel VA via bootstrap tables
  */
 armv7_mpcontinuation:
-       // Adjust stack back to KVA address
+       // Stack to KVA address
        add     sp, sp, R_VTOPDIFF
 
        VPRINTF("virtual\n\r")