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,