From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: sen wang <wangchendu@gmail.com>
Cc: David Brown <davidb@codeaurora.org>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: questions about arm trustzone
Date: Tue, 25 Jan 2011 10:26:52 +0000 [thread overview]
Message-ID: <20110125102652.GB11507@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <AANLkTin9fSw5DdqdgCEvtdtc83LFOeA7t0OAUugVmRFD@mail.gmail.com>
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.
WARNING: multiple messages have this Message-ID (diff)
From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: questions about arm trustzone
Date: Tue, 25 Jan 2011 10:26:52 +0000 [thread overview]
Message-ID: <20110125102652.GB11507@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <AANLkTin9fSw5DdqdgCEvtdtc83LFOeA7t0OAUugVmRFD@mail.gmail.com>
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.
next prev parent reply other threads:[~2011-01-25 10:27 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-25 2:15 questions about arm trustzone sen wang
2011-01-25 2:15 ` sen wang
2011-01-25 7:49 ` David Brown
2011-01-25 7:49 ` David Brown
2011-01-25 9:19 ` sen wang
2011-01-25 9:19 ` sen wang
2011-01-25 10:26 ` Russell King - ARM Linux [this message]
2011-01-25 10:26 ` Russell King - ARM Linux
2011-01-25 11:46 ` Santosh Shilimkar
2011-01-25 11:46 ` Santosh Shilimkar
2011-01-25 12:00 ` Russell King - ARM Linux
2011-01-25 12:00 ` Russell King - ARM Linux
2011-01-25 12:24 ` Dave Martin
2011-01-25 12:24 ` Dave Martin
2011-01-25 12:45 ` Russell King - ARM Linux
2011-01-25 12:45 ` Russell King - ARM Linux
2011-01-25 13:25 ` Dave Martin
2011-01-25 13:25 ` Dave Martin
2011-03-11 13:02 ` shiraz hashim
2011-03-11 13:02 ` shiraz hashim
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