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 E32A8CF6495 for ; Sat, 28 Sep 2024 13:03:58 +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:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=O/mxjT2nLNSPsPxYEGFi5gpeu0wbcraLO7W++CK8ou8=; b=mW9SnLBR+AgyBz 4KVDbCk9t1cvvxl082tq26mkhs9CET35U2/nA+MHrcJ6DNIo7UsGO7wRfXz26Yn4ku39hHD3fjqPi 08OGqSVzcNkThvhW70VpFp02ilCCgEheC5MS+y7FjidC9080Vswua9Vt8itGzbSPkObaXMP8P5fTQ HH2l0z3zfBPGtiyLeRmuRTMR0nHeNWENZ7ptR/n6f6e2yu3NsFYaOM1xMshsWe7OwQ8djYq3WwFrT CLYlxsz0So6InUHxwKuDiv9MCNGVRJzrfATM3oPm+VCP09IFwhHHt9XGv1/va9H6okAVNQDai2Lxm VrjRpTSKP8rTfaH9khRQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1suX73-0000000D5mg-2z9w; Sat, 28 Sep 2024 13:03:53 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1suX66-0000000D5ha-1KuJ for linux-mtd@lists.infradead.org; Sat, 28 Sep 2024 13:02:55 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 7F5DF5C553E; Sat, 28 Sep 2024 13:02:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 38213C4CEC3; Sat, 28 Sep 2024 13:02:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727528573; bh=urz7cW1OH9XkyT5GAilgziDYPmw013WbO3RQCNixOsc=; h=Date:Subject:To:References:From:In-Reply-To:From; b=VX1wH/Aw3LgHIRk8asB6TLmzWoWD6+i8+ctwZL7EWlZocXZTKTyhQHlqeTVHCAMU7 Vp+ZjwUS1YvDPps1shoV2dwis0FpzshNDthcE8AmKA7Ex05TtQj/P2JiKBMdJAvoEH bGywmBCHDj/MW48VLi9fOz8MND0wPHMVzj7EvP4z/hMSp69P/kcDOnSxQGT8SPEldv s0K8uVk50WrYUO6AkSddibLBpJp7bmT8FwYGXcRBCqDctQNLGAN+3hCYAGoI85WJls 9L/UhOfM24Aod9ZNmRRgiENEBzQ2D2mOqDNFU8C8ABpOY62chPtVfmHiiVZ7wlV5Nk 2ynOkpdFQcEHw== Message-ID: <7a2e8819-ac70-4070-a731-53994c72cd79@kernel.org> Date: Sat, 28 Sep 2024 15:02:47 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC 1/2] dt-bindings: mtd: ubi-volume: add 'volume-is-critical' property To: Daniel Golle , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Zhihao Cheng , John Crispin , linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On 28/09/2024 14:47, Daniel Golle wrote: > Add the 'volume-is-critical' boolean property which marks a UBI volume > as critical for the device to boot. If set it prevents the user from > all kinds of write access to the volume as well as from renaming it or > detaching the UBI device it is located on. > > Signed-off-by: Daniel Golle > --- > .../devicetree/bindings/mtd/partitions/ubi-volume.yaml | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml b/Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml > index 19736b26056b..2bd751bb7f9e 100644 > --- a/Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml > +++ b/Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml > @@ -29,6 +29,15 @@ properties: > description: > This container may reference an NVMEM layout parser. > > + volume-is-critical: > + description: This parameter, if present, indicates that the UBI volume > + contains early-boot firmware images or data which should not be clobbered. > + If set, it prevents the user from renaming the volume, writing to it or > + making any changes affecting it, as well as detaching the UBI device it is > + located on, so direct access to the underlying MTD device is prevented as > + well. > + type: boolean UBI volumes are mapping to partitions 1-to-1, right? So rather I would propose to use partition.yaml - we already have read-only there with very similar description. Best regards, Krzysztof ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/