[U-Boot] [PATCH v2 07/13] ARM: HYP/non-sec: allow relocation to secure RAM

[Albert ARIBAUD]

Hi Marc,

On Sat,  7 Dec 2013 11:19:12 +0000, Marc Zyngier <marc.zyngier at 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 at arm.com>
> ---
>  arch/arm/cpu/armv7/nonsec_virt.S | 161 +++++++++++++++++++--------------------
>  arch/arm/cpu/armv7/virt-v7.c     |  59 +++++---------
>  arch/arm/include/asm/armv7.h     |  10 ++-
>  arch/arm/include/asm/secure.h    |  26 +++++++
>  arch/arm/lib/bootm.c             |  21 ++---
>  5 files changed, 136 insertions(+), 141 deletions(-)
>  create mode 100644 arch/arm/include/asm/secure.h

It seems like patch 07/13 does not apply properly on top of current ARM.
Can you have a look? If a rebased V3 is needed, you can remove patch 01
from the list (or if it is simpler to you, keep it in and I'll just
ignore it when applying). 

Amicalement,
-- 
Albert.