PR/57240 CVS commit: src/sys/arch/aarch64/aarch64

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

The following reply was made to PR kern/57240; it has been noted by GNATS.

From: "Taylor R Campbell" <riastradh%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/57240 CVS commit: src/sys/arch/aarch64/aarch64
Date: Thu, 23 Feb 2023 14:54:57 +0000

 Module Name:	src
 Committed By:	riastradh
 Date:		Thu Feb 23 14:54:57 UTC 2023
 
 Modified Files:
 	src/sys/arch/aarch64/aarch64: cpuswitch.S locore.S
 
 Log Message:
 aarch64: Add missing barriers in cpu_switchto.
 
 Details in comments.
 
 Note: This is a conservative change that inserts a barrier where
 there was a comment saying none is needed, which is probably correct.
 The goal of this change is to systematically add barriers to be
 confident in correctness; subsequent changes may remove some bariers,
 as an optimization, with an explanation of why each barrier is not
 needed.
 
 PR kern/57240
 
 XXX pullup-9
 XXX pullup-10
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.39 -r1.40 src/sys/arch/aarch64/aarch64/cpuswitch.S
 cvs rdiff -u -r1.90 -r1.91 src/sys/arch/aarch64/aarch64/locore.S
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.