From: David Brown <davidb@codeaurora.org>
To: sen wang <wangchendu@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: questions about arm trustzone
Date: Mon, 24 Jan 2011 23:49:21 -0800 [thread overview]
Message-ID: <8yad3nlh18e.fsf@huya.qualcomm.com> (raw)
In-Reply-To: <AANLkTi=eCOiP7MrUSG4WRMN0kj_+ZWvZ=z7VYDfkshU_@mail.gmail.com> (sen wang's message of "Tue, 25 Jan 2011 10:15:14 +0800")
On Mon, Jan 24 2011, sen wang wrote:
> we need to build a little os in the secure mode,and run linux in the
> normal world.but, can I use gcc to compile the special instructions like 'smc'.
> which gcc version can work? and where can i find the example code
> switching between the secure and normal worlds?
In the 2.6.38-rc2 kernel, arch/arm/mach-msm/scm.c does this. I don't
think there is any other code in the kernel, yet.
David
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
WARNING: multiple messages have this Message-ID (diff)
From: davidb@codeaurora.org (David Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: questions about arm trustzone
Date: Mon, 24 Jan 2011 23:49:21 -0800 [thread overview]
Message-ID: <8yad3nlh18e.fsf@huya.qualcomm.com> (raw)
In-Reply-To: <AANLkTi=eCOiP7MrUSG4WRMN0kj_+ZWvZ=z7VYDfkshU_@mail.gmail.com> (sen wang's message of "Tue, 25 Jan 2011 10:15:14 +0800")
On Mon, Jan 24 2011, sen wang wrote:
> we need to build a little os in the secure mode,and run linux in the
> normal world.but, can I use gcc to compile the special instructions like 'smc'.
> which gcc version can work? and where can i find the example code
> switching between the secure and normal worlds?
In the 2.6.38-rc2 kernel, arch/arm/mach-msm/scm.c does this. I don't
think there is any other code in the kernel, yet.
David
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
next prev parent reply other threads:[~2011-01-25 7:49 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 [this message]
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
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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