From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A88CC433B4 for ; Thu, 20 May 2021 13:34:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E3D2610A2 for ; Thu, 20 May 2021 13:34:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231748AbhETNgT (ORCPT ); Thu, 20 May 2021 09:36:19 -0400 Received: from foss.arm.com ([217.140.110.172]:51538 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231634AbhETNgT (ORCPT ); Thu, 20 May 2021 09:36:19 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AC4F611D4; Thu, 20 May 2021 06:34:57 -0700 (PDT) Received: from bogus (unknown [10.57.72.88]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C84A63F73B; Thu, 20 May 2021 06:34:55 -0700 (PDT) Date: Thu, 20 May 2021 14:34:48 +0100 From: Sudeep Holla To: Jens Wiklander Cc: Linux ARM , Devicetree List , arve@google.com, Sudeep Holla , Andrew Walbran , David Hartley , Achin Gupta , Arunachalam Ganapathy , Marc Bonnici Subject: Re: [PATCH v6 0/6] firmware: Add initial support for Arm FF-A Message-ID: <20210520133448.GA919377@bogus> References: <20210505093843.3308691-1-sudeep.holla@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Thu, May 20, 2021 at 03:20:46PM +0200, Jens Wiklander wrote: > On Wed, May 5, 2021 at 11:38 AM Sudeep Holla wrote: > > > > Hi all, > > > > This is very basic implementation for in-kernel support for Arm FF-A > > specification. > > > > Arm Firmware Framework for Armv8-A specification[1] describes a software > > architecture that provides mechanism to utilise the virtualization > > extension to isolate software images and describes interfaces that > > standardize communication between the various software images. This > > includes communication between images in the Secure and Normal world. > > > > The main idea here is to create FFA device to establish any communication > > with a secure partition. This is currently tested with OPTEE(with changes > > to OPTEE driver adding FFA as transport) > > > > The series can be fetched from [2] > > > > -- > > Regards, > > Sudeep > > > > [1] https://developer.arm.com/documentation/den0077/latest > > [2] git://git.kerniel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git v5.13/ffa > > Tested OK with my OP-TEE driver patches on top of 755e78187c4e > ("firmware: arm_ffa: Add support for MEM_* interfaces"), which is the > latest on the v5.13/ffa branch above. > > Tested-by: Jens Wiklander > Thanks Jens for testing, much appreciated! -- Regards, Sudeep