From: Julien Grall <julien.grall@arm.com>
Date: Tue, 12 Sep 2017 10:03:13 +0000 (+0100)
Subject: xen/arm: arm32: Don't define FAR_EL1
X-Git-Tag: 4.10.0-rc1~295
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=4f6673926b44f6b1ad2c1339641ad89e9aff0b48;p=xen.git

xen/arm: arm32: Don't define FAR_EL1

Aliasing FAR_EL1 to IFAR is wrong because on ARMv8 FAR_EL1[31:0] is
architecturally mapped to DFAR and FAR_EL1[63:32] to IFAR.

As FAR_EL1 is not currently used in ARM32 code, remove it.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
---

diff --git a/xen/include/asm-arm/cpregs.h b/xen/include/asm-arm/cpregs.h
index 1889d7cbfb..9e138489f0 100644
--- a/xen/include/asm-arm/cpregs.h
+++ b/xen/include/asm-arm/cpregs.h
@@ -306,7 +306,6 @@
 #define DACR32_EL2              DACR
 #define ESR_EL1                 DFSR
 #define ESR_EL2                 HSR
-#define FAR_EL1                 HIFAR
 #define HCR_EL2                 HCR
 #define HPFAR_EL2               HPFAR
 #define HSTR_EL2                HSTR