Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752605Ab3IFQsS (ORCPT ); Fri, 6 Sep 2013 12:48:18 -0400 Received: from mail-ie0-f170.google.com ([209.85.223.170]:46248 "EHLO mail-ie0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751488Ab3IFQsQ (ORCPT ); Fri, 6 Sep 2013 12:48:16 -0400 MIME-Version: 1.0 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> Date: Fri, 6 Sep 2013 18:48:15 +0200 Message-ID: Subject: Re: [PATCH v5 1/5] ARM: add basic Trusted Foundations support From: Linus Walleij To: Alexandre Courbot Cc: Russell King , Stephen Warren , Tomasz Figa , Dave Martin , Olof Johansson , Arnd Bergmann , Kevin Hilman , Alexandre Courbot , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-tegra@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1720 Lines: 41 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/