From: cov@codeaurora.org (Christopher Covington)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC] arm: Handle starting up in secure mode
Date: Tue, 16 Sep 2014 17:24:16 -0400 [thread overview]
Message-ID: <5418AA80.4090102@codeaurora.org> (raw)
In-Reply-To: <1410901756-20694-1-git-send-email-cov@codeaurora.org>
On 09/16/2014 05:09 PM, Christopher Covington wrote:
> ARM Linux currently has the most features available to it in hypervisor
> (HYP) mode, so switch to it when possible. This can also ensure proper
> reset of newer registers such as CNTVOFF.
>
> The permissions on the Non-Secure Access Control Register (NSACR) are
> used to probe what the security setting currently is when in supervisor
> (SVC) mode.
Sorry, this doesn't work yet. I was misinterpreting my test results. For what
it's worth, my testing and development methodology is to run it after hacked
up versions of the semihosting bootwrapper on the simulator that corresponds
to rtsm_ve-aemv8a.dtb (AEM VE FVP these days?) and examine the instruction traces.
Christopher
--
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by the Linux Foundation.
next prev parent reply other threads:[~2014-09-16 21:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-16 21:09 [RFC] arm: Handle starting up in secure mode Christopher Covington
2014-09-16 21:24 ` Christopher Covington [this message]
2014-09-17 13:25 ` Christopher Covington
2014-09-17 20:55 ` Sonny Rao
2014-09-19 5:56 ` Peter Maydell
2014-09-19 13:22 ` Christopher Covington
2014-09-19 13:30 ` Catalin Marinas
2014-09-19 13:58 ` Christopher Covington
2014-09-19 16:52 ` Sonny Rao
2014-09-18 17:23 ` Catalin Marinas
2014-09-19 14:02 ` Christopher Covington
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