Messages in this thread | | | Date | Fri, 6 Sep 2013 18:48:15 +0200 | Subject | Re: [PATCH v5 1/5] ARM: add basic Trusted Foundations support | From | Linus Walleij <> |
| |
On Thu, Sep 5, 2013 at 5:27 AM, Alexandre Courbot <acourbot@nvidia.com> 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 <acourbot@nvidia.com> > Reviewed-by: Tomasz Figa <t.figa@samsung.com> > Reviewed-by: Stephen Warren <swarren@nvidia.com>
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
| |