linux-kernel - Re: questions about arm trustzone

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Date:	Tue, 25 Jan 2011 10:26:52 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	sen wang <wangchendu@...il.com>
Cc:	David Brown <davidb@...eaurora.org>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: questions about arm trustzone

On Tue, Jan 25, 2011 at 05:19:16PM +0800, sen wang wrote:
> It seems linux run in the normal world, and the "scm.c"  is the path
> to the monitor mode.
> where can I find the example code for monitor and secure world?

OMAP also uses smc: arch/arm/mach-omap2/omap44xx-smc.S

There's no interface defined for smc because it's highly vendor and
implementation specific.  It's just like a SWI (or svc) where it
causes entry via a vector into a priviledged mode, which can be
thought of being similar to a branch to a vector with a mode switch.
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