From mboxrd@z Thu Jan  1 00:00:00 1970
From: Albert ARIBAUD <albert.u.boot@aribaud.net>
Date: Mon, 9 Jun 2014 21:06:04 +0200
Subject: [U-Boot] [PATCH v4 06/10] ARM: HYP/non-sec: allow relocation to
 secure RAM
In-Reply-To: <1398514631-23956-7-git-send-email-marc.zyngier@arm.com>
References: <1398514631-23956-1-git-send-email-marc.zyngier@arm.com>
	<1398514631-23956-7-git-send-email-marc.zyngier@arm.com>
Message-ID: <E1Wu4tR-0008P9-FY@janus>
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To: u-boot@lists.denx.de

Hi Marc,

On Sat, 26 Apr 2014 13:17:07 +0100, Marc Zyngier <marc.zyngier@arm.com>
wrote:

> The current non-sec switching code suffers from one major issue:
> it cannot run in secure RAM, as a large part of u-boot still needs
> to be run while we're switched to non-secure.
> 
> This patch reworks the whole HYP/non-secure strategy by:
> - making sure the secure code is the *last* thing u-boot executes
>   before entering the payload
> - performing an exception return from secure mode directly into
>   the payload
> - allowing the code to be dynamically relocated to secure RAM
>   before switching to non-secure.
> 
> This involves quite a bit of horrible code, specially as u-boot
> relocation is quite primitive.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
> ---

This one causes a minor warning to appear when building aarch64 board
vexpress_aemv8a:

/home/albert.u.boot/src/u-boot-arm/arch/arm/lib/bootm.c:189:13: warning: 'do_nonsec_virt_switch' defined but not used [-Wunused-function] 
 static void do_nonsec_virt_switch(void) 
             ^ 

Can you look into removing this warning? Thanks in advance.

Amicalement,
-- 
Albert.