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 Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7056C7619A for ; Wed, 5 Apr 2023 23:45:01 +0000 (UTC) Received: from mailout4.zoneedit.com (mailout4.zoneedit.com [64.68.198.64]) by mx.groups.io with SMTP id smtpd.web11.146486.1680738297946347713 for ; Wed, 05 Apr 2023 16:44:58 -0700 Authentication-Results: mx.groups.io; dkim=missing; spf=none, err=permanent DNS error (domain: denix.org, ip: 64.68.198.64, mailfrom: denis@denix.org) Received: from localhost (localhost [127.0.0.1]) by mailout4.zoneedit.com (Postfix) with ESMTP id 4867C40AC9; Wed, 5 Apr 2023 23:44:57 +0000 (UTC) Received: from mailout4.zoneedit.com ([127.0.0.1]) by localhost (zmo14-pco.easydns.vpn [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ty-3lQVLtccY; Wed, 5 Apr 2023 23:44:57 +0000 (UTC) Received: from mail.denix.org (pool-100-15-88-116.washdc.fios.verizon.net [100.15.88.116]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mailout4.zoneedit.com (Postfix) with ESMTPSA id EE545406B5; Wed, 5 Apr 2023 23:44:50 +0000 (UTC) Received: by mail.denix.org (Postfix, from userid 1000) id B75961637F9; Wed, 5 Apr 2023 19:44:14 -0400 (EDT) Date: Wed, 5 Apr 2023 19:44:14 -0400 From: Denys Dmytriyenko To: Ross Burton Cc: Jon Mason , Adam Johnston , "meta-arm@lists.yoctoproject.org" , nd , Jon Mason , Yocto TSC Subject: Re: [meta-arm] [PATCH 1/1] arm-bsp/optee: Update OP-TEE TA devkit to 3.20 for N1SDP Message-ID: <20230405234414.GJ9226@denix.org> References: <20230403154306.3422-1-adam.johnston@arm.com> <20230403154306.3422-2-adam.johnston@arm.com> <20230404000559.GA9226@denix.org> <20230404161414.GC9226@denix.org> <20230405150847.GD9226@denix.org> <4C217F66-AD65-48CF-8850-78CC7034F21F@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <4C217F66-AD65-48CF-8850-78CC7034F21F@arm.com> User-Agent: Mutt/1.5.20 (2009-06-14) Content-Transfer-Encoding: quoted-printable List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 05 Apr 2023 23:45:01 -0000 X-Groupsio-URL: https://lists.yoctoproject.org/g/meta-arm/message/4557 On Wed, Apr 05, 2023 at 07:20:20PM +0000, Ross Burton wrote: > On 5 Apr 2023, at 20:13, Jon Mason wrote: > >=20 > >> At the TSC meetings recently we've discussed the possibility of migr= ating=20 > >> Trusted Firmware and OP-TEE components from meta-arm to oe-core in o= rder to=20 > >> reduce dependencies on these core components by other BSPs. >=20 > My opinion here is that in the ideal world a generic-arm64 BSP wouldn=E2= =80=99t need=20 > anything extra in oe-core to work: assume working firmware (SystemReady= ),=20 > mainline kernel, mainline U-Boot, etc and it will work. It may not be = as=20 > fully functional as you=E2=80=99d get by adding custom optee/tf pieces = but that=E2=80=99s=20 > where meta-arm steps in, which was designed explicitly to be BSP-agnost= ic. Understood and agree. I'm not yet that much familiar with SystemReady fir= mware=20 specifics - does that include Trusted Firmware? Not so sure about OP-TEE,= but=20 what does the spec say about it? --=20 Denys