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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 278F0C433DB for ; Tue, 23 Mar 2021 09:51:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DB439619C0 for ; Tue, 23 Mar 2021 09:51:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229893AbhCWJvG (ORCPT ); Tue, 23 Mar 2021 05:51:06 -0400 Received: from foss.arm.com ([217.140.110.172]:43098 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230071AbhCWJut (ORCPT ); Tue, 23 Mar 2021 05:50:49 -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 19BFF1042; Tue, 23 Mar 2021 02:50:49 -0700 (PDT) Received: from bogus (unknown [10.57.54.194]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A6A333F719; Tue, 23 Mar 2021 02:50:47 -0700 (PDT) Date: Tue, 23 Mar 2021 09:50:45 +0000 From: Sudeep Holla To: Jens Wiklander Cc: Linux ARM , Devicetree List , Trilok Soni , arve@android.com, Andrew Walbran , David Hartley , Achin Gupta , Arunachalam Ganapathy , Marc Bonnici Subject: Re: [PATCH v4 0/7] firmware: Add initial support for Arm FF-A Message-ID: <20210323095045.dklqhbee3fkflvk2@bogus> References: <20210212154614.38604-1-sudeep.holla@arm.com> <20210316143429.tdyyulkml4ypdixy@bogus> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20171215 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Fri, Mar 19, 2021 at 08:56:47AM +0100, Jens Wiklander wrote: > On Thu, Mar 18, 2021 at 3:09 PM Jens Wiklander > wrote: > > > > Hi Sudeep, > > > > On Tue, Mar 16, 2021 at 3:34 PM Sudeep Holla wrote: > > > > > > Hi Jens, > > > > > > On Fri, Feb 12, 2021 at 03:46:07PM +0000, 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) > > > > > > > > > > Since you reviewed the last version, it would be helpful if you provide > > > Reviewed-by or Tested-by if you happy with this version. I would like to > > > get this initial version merged for v5.13 > > > > I've tested this in a few of my setups and everything looks over all > > fine, so please apply: > > Tested-by: Jens Wiklander > > > > I'm also double checking the details of the patches for some further > > feedback. Stay tuned. > > I'm done reviewing this patchset. I had a comment about a TODO in > "arm64: smccc: Add support for SMCCCv1.2 input/output registers", I > suppose it isn't very urgent with a 32-bit implementation. > Thanks again, I will reply to that seperately. But yes, it is not urgent as of now. -- Regards, Sudeep