From: Julien Grall <julien.grall@arm.com>
Date: Sat, 13 Apr 2019 16:00:06 +0000 (+0100)
Subject: xen/arm32: head: Don't set MAIR0 and MAIR1
X-Git-Tag: archive/raspbian/4.14.0+80-gd101b417b7-1+rpi1^2~63^2~2096
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=16af78ade112a275c03bfa8c2d9369baadf71d42;p=xen.git

xen/arm32: head: Don't set MAIR0 and MAIR1

The co-processor registers MAIR0 and MAIR1 are managed by EL1. So there
are no need to initialize them during Xen boot.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Andrii Anisov <andrii_anisov@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
---

diff --git a/xen/arch/arm/arm32/head.S b/xen/arch/arm/arm32/head.S
index db72438e1a..598806b706 100644
--- a/xen/arch/arm/arm32/head.S
+++ b/xen/arch/arm/arm32/head.S
@@ -212,8 +212,6 @@ cpu_init_done:
         /* Set up memory attribute type tables */
         ldr   r0, =MAIR0VAL
         ldr   r1, =MAIR1VAL
-        mcr   CP32(r0, MAIR0)
-        mcr   CP32(r1, MAIR1)
         mcr   CP32(r0, HMAIR0)
         mcr   CP32(r1, HMAIR1)