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 49328C433EF for ; Mon, 11 Apr 2022 15:55:44 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 945A66B0072; Mon, 11 Apr 2022 11:55:43 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8F5446B0075; Mon, 11 Apr 2022 11:55:43 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7BCEE6B0078; Mon, 11 Apr 2022 11:55:43 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.27]) by kanga.kvack.org (Postfix) with ESMTP id 6E7E66B0072 for ; Mon, 11 Apr 2022 11:55:43 -0400 (EDT) Received: from smtpin17.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay11.hostedemail.com (Postfix) with ESMTP id 3E9D881966 for ; Mon, 11 Apr 2022 15:55:43 +0000 (UTC) X-FDA: 79345048566.17.DC9CFFF Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by imf20.hostedemail.com (Postfix) with ESMTP id 821B31C0003 for ; Mon, 11 Apr 2022 15:55:41 +0000 (UTC) Received: from zn.tnic (p2e55dff8.dip0.t-ipconnect.de [46.85.223.248]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 1A6C51EC051F; Mon, 11 Apr 2022 17:55:34 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1649692534; 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:in-reply-to:in-reply-to: references:references; bh=+qm6xxaKZ1LEXRx+Q8w+uMhxMAISclspO9iaopSo6C4=; b=EpI4AFGUegZ/8pATs/HB27ODf/aTQFNOqs1L5bF6c/6VW28wW7C07qKtAn1UY6hIcAHcqr X7cTScH/818ZNmY/9bhit78ZT54ChEl1N9WwhrbGljuJj/DpDeSeqIHo5Pi7dhyevmonbB rZUXmrNhqpuaAEtbh5J7J4E8ZeivFhY= Date: Mon, 11 Apr 2022 17:55:33 +0200 From: Borislav Petkov To: Dave Hansen Cc: "Kirill A. Shutemov" , "Kirill A. Shutemov" , Andy Lutomirski , Sean Christopherson , Andrew Morton , Joerg Roedel , Ard Biesheuvel , Andi Kleen , Kuppuswamy Sathyanarayanan , David Rientjes , Vlastimil Babka , Tom Lendacky , Thomas Gleixner , Peter Zijlstra , Paolo Bonzini , Ingo Molnar , Varad Gautam , Dario Faggioli , Brijesh Singh , Mike Rapoport , David Hildenbrand , x86@kernel.org, linux-mm@kvack.org, linux-coco@lists.linux.dev, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, Mike Rapoport Subject: Re: [PATCHv4 1/8] mm: Add support for unaccepted memory Message-ID: References: <20220405234343.74045-1-kirill.shutemov@linux.intel.com> <20220405234343.74045-2-kirill.shutemov@linux.intel.com> <93a7cfdf-02e6-6880-c563-76b01c9f41f5@intel.com> <20220409175210.xik3ue3shpagskvi@box.shutemov.name> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Stat-Signature: kmkyw7tizfhjx1q4n1zhnqzkazwo8na8 Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=alien8.de header.s=dkim header.b=EpI4AFGU; spf=pass (imf20.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-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 821B31C0003 X-HE-Tag: 1649692541-655728 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 Sun, Apr 10, 2022 at 11:41:57PM -0700, Dave Hansen wrote: > Let's just call out the possible (probable?) need for new ABI here. > Maybe it will cue folks who care to speak up. Err, why would you teach the user to go poke at some arbitrary sysfs nodes when the accepting code can simply issue a printk from time to time "Guest unnaccepted memory progress: XX%. This slows down operations at the moment." -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette