From mboxrd@z Thu Jan  1 00:00:00 1970
From: julien.grall@arm.com (Julien Grall)
Date: Wed, 23 May 2018 10:23:20 +0100
Subject: [PATCH 02/14] arm64: Call ARCH_WORKAROUND_2 on transitions
 between EL0 and EL1
In-Reply-To: <20180522150648.28297-3-marc.zyngier@arm.com>
References: <20180522150648.28297-1-marc.zyngier@arm.com>
 <20180522150648.28297-3-marc.zyngier@arm.com>
Message-ID: <0b03ce12-510e-464b-63de-cd481d7cb1c5@arm.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hi Marc,

On 05/22/2018 04:06 PM, Marc Zyngier wrote:
> diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
> index ec2ee720e33e..f33e6aed3037 100644
> --- a/arch/arm64/kernel/entry.S
> +++ b/arch/arm64/kernel/entry.S
> @@ -18,6 +18,7 @@
>    * along with this program.  If not, see <http://www.gnu.org/licenses/>.
>    */
>   
> +#include <linux/arm-smccc.h>
>   #include <linux/init.h>
>   #include <linux/linkage.h>
>   
> @@ -137,6 +138,18 @@ alternative_else_nop_endif
>   	add	\dst, \dst, #(\sym - .entry.tramp.text)
>   	.endm
>   
> +	// This macro corrupts x0-x3. It is the caller's duty
> +	// to save/restore them if required.

NIT: Shouldn't you use /* ... */ for multi-line comments?

Regardless that:

Reviewed-by: Julien Grall <julien.grall@arm.com>

Cheers,

-- 
Julien Grall