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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D48BC7EE30 for ; Tue, 28 Feb 2023 20:50:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229854AbjB1Uuu (ORCPT ); Tue, 28 Feb 2023 15:50:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229524AbjB1Uuu (ORCPT ); Tue, 28 Feb 2023 15:50:50 -0500 Received: from bird.elm.relay.mailchannels.net (bird.elm.relay.mailchannels.net [23.83.212.17]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 005844680 for ; Tue, 28 Feb 2023 12:50:48 -0800 (PST) X-Sender-Id: dreamhost|x-authsender|dave@stgolabs.net Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id 3F6077611C5; Tue, 28 Feb 2023 20:50:48 +0000 (UTC) Received: from pdx1-sub0-mail-a231.dreamhost.com (unknown [127.0.0.6]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id C35427612CE; Tue, 28 Feb 2023 20:50:47 +0000 (UTC) ARC-Seal: i=1; s=arc-2022; d=mailchannels.net; t=1677617447; a=rsa-sha256; cv=none; b=OnG0r6w8YtxnIfQhAsR9gQVbK01yhyi/29WISAmhJ/Z5TaOJr8qYIv+t3DjKNN8kJbyBi4 h/KiSma2fTTstKh/fAl5j7K6+yu+1yIqhLT02E3NxSYz9OHJaf4XuQ1cKEQmscUvGsVKbR 2foP1ws2I4ve+uz7zyjNmHYaQH0l019ZEurzIBUxHWURGx0m7X6EF0ePq26O9zCCc2vQCn fGZhW3Qd3yP8uOdjC5tB7i/ZQVt3noDsg24xvyzjgH6oV8woYulv1WTGXIHnmp2GViAeLa X7FZNUR2p/OPAFKvc/dGLydFPfh4jq75ssZtzO8qm7EYGF8Ae/0T3dhE8VkpGQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=mailchannels.net; s=arc-2022; t=1677617447; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references:dkim-signature; bh=zTGFhyIcRc3oF28Liejqsyf39cIJCQygKCRMhjLNIWo=; b=cXHd8CIPs7TrHR4IqKeWUvpEKj+Khp/J0E+Tg4ZAPopQk1sLr0DAgUISLe5wtfjG413ZAg NkYLgBLdmaHLBujhfAHw0he1mQ69STQCA+YI2tapczjGIsEDjfXVz0Jxnp6Hhm4EaGihaK XlQAW8JeD9G6d4X68zgCnqDCHAajOlxSJ9cflya5knGMDSCH+0L+zCc4u8cOj0HA/ZHBbp aKlJlBiGc0mp2AAHSkj2lS7E518K9hzW8k2yFRwkWhdX6SnbdzYTdTfJgkdP2BuzlN4/0L IYbQi+v1fZpQTF7oshfT6AforJoYUFAu+XZ4yuSsK312Y+Joa6QOdaeDuoBa2w== ARC-Authentication-Results: i=1; rspamd-fd4f5fb8c-lqvb9; auth=pass smtp.auth=dreamhost smtp.mailfrom=dave@stgolabs.net X-Sender-Id: dreamhost|x-authsender|dave@stgolabs.net X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|dave@stgolabs.net X-MailChannels-Auth-Id: dreamhost X-Shoe-Desert: 36e622082742d736_1677617448075_323462457 X-MC-Loop-Signature: 1677617448075:2788358357 X-MC-Ingress-Time: 1677617448075 Received: from pdx1-sub0-mail-a231.dreamhost.com (pop.dreamhost.com [64.90.62.162]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384) by 100.107.134.65 (trex/6.7.2); Tue, 28 Feb 2023 20:50:48 +0000 Received: from offworld (ip72-199-50-187.sd.sd.cox.net [72.199.50.187]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dave@stgolabs.net) by pdx1-sub0-mail-a231.dreamhost.com (Postfix) with ESMTPSA id 4PR8dz1123z59; Tue, 28 Feb 2023 12:50:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=stgolabs.net; s=dreamhost; t=1677617447; bh=zTGFhyIcRc3oF28Liejqsyf39cIJCQygKCRMhjLNIWo=; h=Date:From:To:Cc:Subject:Content-Type; b=djt7KLYGGkDkfK7yexL3nyft9DAOYHtDcvN6qwhVEef/R/CDYM/SqtMK0TDAy8xu8 AKq8Cm4s+UeSF2ZsD3qwvghecSP4HjKRpZ/jHBHvx8elu+tUieuFtS2znkHW10Z5jD 7aKsE/uLXsTWjTc+uVgLtXreBW5iqfdT8sUTNjNzPD9Nc4+Oq4kpZIqe4hy9eBbcMB b3AQKqEtePja6xYEg4kkRKlpUnyAHcHQRvLKJc4UvHp99N7dWRu6o7kyThaASNbw4w CxpmLCmnLK3jg+qCWshEzygivQwkgju2Gd4Xobahw2YN+B50uA10G1kCkO8ts0xz9h jqQ64P+xp153g== Date: Tue, 28 Feb 2023 12:22:05 -0800 From: Davidlohr Bueso To: Dave Jiang Cc: dan.j.williams@intel.com, jonathan.cameron@huawei.com, ira.weiny@intel.com, fan.ni@samsung.com, a.manzanares@samsung.com, linux-cxl@vger.kernel.org Subject: Re: [PATCH 4/7] cxl/mem: Support Sanitation Message-ID: <20230228202205.hit6u33ptbsb3jw4@offworld> References: <20230224194652.1990604-1-dave@stgolabs.net> <20230224194652.1990604-5-dave@stgolabs.net> <7333903c-4ef9-6f1f-9767-e32f228149b3@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <7333903c-4ef9-6f1f-9767-e32f228149b3@intel.com> User-Agent: NeoMutt/20220429 Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org On Tue, 28 Feb 2023, Dave Jiang wrote: >On 2/24/23 12:46 PM, Davidlohr Bueso wrote: >>Implement support for the non-pmem exclusive sanitize (aka overwrite), >>per CXL specs. This is the baseline for the sanitize-on-release >>functionality. >> >>To properly support this feature, create a 'security/sanitize' sysfs >>file that when read will list the current pmem security state and >>when written to, perform the requested operation. > >I think this segment needs to be updated? The attrib is write only >from the code below. Bleh, indeed both commands need the changelog updated, these are intended to be write-only. Thanks, Davidlohr