From mboxrd@z Thu Jan 1 00:00:00 1970 From: linus.walleij@linaro.org (Linus Walleij) Date: Fri, 6 Sep 2013 18:48:15 +0200 Subject: [PATCH v5 1/5] ARM: add basic Trusted Foundations support In-Reply-To: <1378351680-14696-2-git-send-email-acourbot@nvidia.com> References: <1378351680-14696-1-git-send-email-acourbot@nvidia.com> <1378351680-14696-2-git-send-email-acourbot@nvidia.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Sep 5, 2013 at 5:27 AM, Alexandre Courbot wrote: > Trusted Foundations is a TrustZone-based secure monitor for ARM that > can be invoked using a consistent SMC-based API on all supported > platforms. This patch adds initial basic support for Trusted > Foundations using the ARM firmware API. Current features are limited > to the ability to boot secondary processors. > > Signed-off-by: Alexandre Courbot > Reviewed-by: Tomasz Figa > Reviewed-by: Stephen Warren I take it that this means that it is a set of standard routines living in the secure world that can be called by way of this API, correct? The commit message is written a bit like everybody knows what this is about but I don't :-) Some more background here would be nice, like where did this thing come from, and are there other platforms in existance that use trusted foundations or is it a Tegra-only thing? Does a specification of this thing listing available services exist for example? How does it relate to the (arch-neutral) trusted execution environment and such things that other vendors are pushing for? Can the trusted foundations be used "underneath" such frameworks for trusted applications, or is it a parallell thing altogether? Simple things like that... I tried googling it, is this a relevant URL? http://www.arm.com/community/partners/display_product/rw/ProductId/5393/ Thanks, Linus Walleij