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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6723ACA5FA2 for ; Mon, 28 Sep 2026 11:33:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=am/5WgNGWGnHcaWjxQOvPgIBgwID9TT4Nk3XO43PQS4=; b=Nkep3QfRp+ipdq R6moSVcOw1cEVS406GWnTW93v/zSvaGfm0ed11jRtLxuE7QZ5CN0vq0szBhNQoQHtTHEIqYbdOpe2 N7i5ypfBmGQk5OuIT8Nk4IPhcZr6s/0IRAfrgmgg+9kfIGZPIPXs1S1qTayac2qdM6k3hsucabHfw ZABk3WbSJNT566hLK2i6LOFhc+CcFVnsg0h3Inc2vSHZfrhF9jPE3+7uAWRHQfd0eFgA9Sl8TP3Ik o+C0hb1n6Hn5DA3huSg1EmYWsg2668V0qTg5OEyEptECZjX7TOcXj5KBb53usTzKXu4tvLCcrFVNo 9QAlbTY15YBrb0d9IVMw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xB9br-00000000TBC-14hC; Mon, 28 Sep 2026 11:33:27 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xB9bp-00000000TAq-1b5u for opensbi@lists.infradead.org; Mon, 28 Sep 2026 11:33:25 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id C2DCF43FEB; Mon, 28 Sep 2026 11:33:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 49FE61F00898; Mon, 28 Sep 2026 11:33:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790595204; bh=jclS1jFDUX0qpCMM6Z9M+WzpmiihJBvztxI3ixXVSAs=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=GVDjVGbA6fLi61rMj5MXqJXW7ZQNVxJvsLuPebaJSMtSY7ukswwTyZLYfDKEXzOU5 PmDRRYvmydr4fUupOfq43QMsBWp6QLF3dVphVVdRqfDQ8eCR2UEt+yzBxnzzxJe9Ak cDD/oQGFEAoquGjcG7WGQhWSL4O53Nw0Rl5a90sYuq/pKtVTCn/iSWw8qlTvHUJJh6 R/ozApjgQKQN0n9OTlT5pwssX1SvJKtkWM6o9hPpElOGNMLKQr7yDWA76vlMUOiAjU mMDxJoT8mmBEtIyRyzQ34+UrPR0oJyZVuWIdiqP5pPHSIr27B6dQ8icej+wciAp1wZ GCoA/LS1ZyHfA== Message-ID: <43ee673a-8df0-4b6f-9e8d-eeda05eb32b9@kernel.org> Date: Mon, 28 Sep 2026 13:33:17 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/9] Add RISC-V Worlds ISA support to OpenSBI To: Yu-Chien Peter Lin , opensbi@lists.infradead.org Cc: zong.li@sifive.com, greentime.hu@sifive.com, anup@brainfault.org, scott@riscstar.com, conor@kernel.org, dave.patel@riscstar.com, raymond.mao@riscstar.com, robin.randhawa@sifive.com, samuel.holland@sifive.com, pawandeep.oza@oss.qualcomm.com References: <20260817090503.2104998-1-peter.lin@sifive.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "opensbi" Errors-To: opensbi-bounces+opensbi=archiver.kernel.org@lists.infradead.org On 17/08/2026 11:04, Yu-Chien Peter Lin wrote: > This patch series adds support for RISC-V Worlds ISA extensions, > enabling hardware-enforced isolation boundaries based on World IDs > by extending the OpenSBI domain framework. > > Trust Model and Boot-time Roles > -------------------------------- > > The implementation follows the two-phase M-mode trust model: > > - RoT M-mode phase: Prior boot stage (ROM/SPL) that may program mwid and > mlwidlist and lock mwid before handing off to OpenSBI. > > - Regular M-mode phase (OpenSBI): Treats pmwid/pmwidlist/pmlwidlist as > input policy from hardware/RoT. Locks mwid to prevent later M-mode code > from changing its own WID. Programs per-domain mlwid/mwiddeleg based on > DT configuration. > > Device Tree Bindings > --------------------- > > Per-hart properties defined in linux kernel DT bindings v3 [1]: > - riscv,pmwid: M-mode World ID > - riscv,pmwidlist: M-mode permitted WID bitmap > - riscv,pmlwidlist: S/U-mode permitted WID bitmap> > Per-domain properties (see domain_support.md): > - wid: S-mode WID for this domain > - widdeleg: WID delegation bitmap for this domain I don't understand why I am cc-ed here, why DT is described here but not in the bindings and why do you reference some RFC (which means: not READY for review) patchset in a different patchset which is ready for review. Best regards, Krzysztof -- opensbi mailing list opensbi@lists.infradead.org http://lists.infradead.org/mailman/listinfo/opensbi