[Xen-changelog] [xen master] xen: arm64: disable alignment traps

[patchbot@xxxxxxx]

commit 58bbe7d71239db508c30099bf7b6db7c458f3336
Author:     Ian Campbell <ian.campbell@xxxxxxxxxx>
AuthorDate: Wed Mar 26 13:38:45 2014 +0000
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Thu Apr 3 17:15:43 2014 +0100

    xen: arm64: disable alignment traps
    
    The mem* primitives which I am about to import from Linux in a subsequent
    patch rely on the hardware handling misalignment.
    
    The benefits of an optimised memcpy etc outweigh the downsides.
    
    Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
    Acked-by: Julien Grall <julien.grall@xxxxxxxxxx>
    Acked-by: Tim Deegan <tim@xxxxxxx>
---
 xen/arch/arm/arm64/head.S |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/arm64/head.S b/xen/arch/arm/arm64/head.S
index 3077f1b..2a13527 100644
--- a/xen/arch/arm/arm64/head.S
+++ b/xen/arch/arm/arm64/head.S
@@ -239,9 +239,9 @@ skip_bss:
          * Write-implies-XN disabled (for now),
          * D-cache disabled (for now),
          * I-cache enabled,
-         * Alignment checking enabled,
+         * Alignment checking disabled,
          * MMU translation disabled (for now). */
-        ldr   x0, =(HSCTLR_BASE|SCTLR_A)
+        ldr   x0, =(HSCTLR_BASE)
         msr   SCTLR_EL2, x0
 
         /* Rebuild the boot pagetable's first-level entries. The structure
--
generated by git-patchbot for /home/xen/git/xen.git#master

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