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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B687C433F5 for ; Fri, 6 May 2022 18:26:09 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 8047E6B0071; Fri, 6 May 2022 14:26:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7B32B6B0073; Fri, 6 May 2022 14:26:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 67B846B0074; Fri, 6 May 2022 14:26:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 5793D6B0071 for ; Fri, 6 May 2022 14:26:08 -0400 (EDT) Received: from smtpin04.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 1FD72224D for ; Fri, 6 May 2022 18:26:08 +0000 (UTC) X-FDA: 79436147616.04.FF1D82B Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by imf08.hostedemail.com (Postfix) with ESMTP id D4D4E160032 for ; Fri, 6 May 2022 18:25:54 +0000 (UTC) Received: from [127.0.0.1] (dynamic-002-247-254-212.2.247.pool.telefonica.de [2.247.254.212]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 5D11B1EC01B5; Fri, 6 May 2022 20:26:00 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1651861560; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lnptI7P6U9gMOK+00VQGCG5CfCdJFwofyyQn9dmbmtk=; b=TyRd62KQTg/LyhQp6/QPwZvfdE/pdL3FhjwrNvGEedYo1AGp3KQu5rY0k40GFuC3CTWFvr 7A55tb1Ujj1dWjDgwIlih8kl/5pGjZ189zgXvaklRFxdaZAOyh/uHaTQMTFr0w51geHbyx HF9t6+00QBZR6W3EMDoT9Y8Ktvr20e0= Date: Fri, 06 May 2022 18:25:56 +0000 From: Boris Petkov To: Dave Hansen , Dan Williams CC: Martin Fernandez , Linux Kernel Mailing List , linux-efi , Linux MM , platform-driver-x86@vger.kernel.org, daniel.gutson@eclypsium.com, Andrew Morton , Kees Cook , Darren Hart , "Schofield, Alison" , "Rafael J. Wysocki" , Mike Rapoport , Ard Biesheuvel , Ingo Molnar , "H. Peter Anvin" , Thomas Gleixner , Dave Hansen , X86 ML , alex.bazhaniuk@eclypsium.com, hughsient@gmail.com, Andy Shevchenko , Greg KH , Ben Widawsky , "Huang, Kai" Subject: =?US-ASCII?Q?Re=3A_=5BPATCH_v8_0/8=5D_x86=3A_Show_in_sysfs_i?= =?US-ASCII?Q?f_a_memory_node_is_able_to_do_encryption?= User-Agent: K-9 Mail for Android In-Reply-To: <6abea873-52a2-f506-b21b-4b567bee1874@intel.com> References: <20220429201717.1946178-1-martin.fernandez@eclypsium.com> <6d90c832-af4a-7ed6-4f72-dae08bb69c37@intel.com> <47140A56-D3F8-4292-B355-5F92E3BA9F67@alien8.de> <6abea873-52a2-f506-b21b-4b567bee1874@intel.com> Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: D4D4E160032 X-Stat-Signature: 38crzfqokpppef3yxw8r5suj1391997x X-Rspam-User: Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=alien8.de header.s=dkim header.b=TyRd62KQ; spf=pass (imf08.hostedemail.com: domain of bp@alien8.de designates 5.9.137.197 as permitted sender) smtp.mailfrom=bp@alien8.de; dmarc=pass (policy=none) header.from=alien8.de X-Rspamd-Server: rspam09 X-HE-Tag: 1651861554-25865 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On May 6, 2022 6:14:00 PM UTC, Dave Hansen wrot= e: >But, this interface will *work* both for the uniform and non-uniform >systems alike=2E And what would that additional information that some "node" - whatever "no= de" means nowadays - is not encrypted give you?=20 Note that the fwupd use case is to be able to say that memory encryption i= s active - nothing more=2E --=20 Sent from a small device: formatting sux and brevity is inevitable=2E