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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 D2053E7D0D2 for ; Fri, 22 Sep 2023 07:09:23 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qjaHS-0003um-7j; Fri, 22 Sep 2023 03:08:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qjaHQ-0003uU-Br for qemu-devel@nongnu.org; Fri, 22 Sep 2023 03:08:48 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qjaHO-0007jn-PP for qemu-devel@nongnu.org; Fri, 22 Sep 2023 03:08:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1695366525; 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=1CcFN6GxFH9huBFe0Pnc3FcwLcThuqa1WEQXANaBaw4=; b=TQKnrykh+MMYG4OPdlFs6a7/i3TN5hZXtEJY7ezc1+oTg8BrTSKv+CG0QhWFQztmgT7OPH rwvt3NVOfVXl1YqhzxoZ/I2Q+mMf1+Mt9kx9YMKQqUf3zqiV4loPzi/eyaBM63/xm+lS6Z 57QYYRv2Jqu5kpHDTuQG3Z9NkSembzA= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-611-877NQ5bCPKqSFADRcAuiJw-1; Fri, 22 Sep 2023 03:08:43 -0400 X-MC-Unique: 877NQ5bCPKqSFADRcAuiJw-1 Received: by mail-wr1-f71.google.com with SMTP id ffacd0b85a97d-317d5b38194so111339f8f.0 for ; Fri, 22 Sep 2023 00:08:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695366522; x=1695971322; h=content-transfer-encoding:in-reply-to:organization:from:references :cc:to:content-language:subject:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=1CcFN6GxFH9huBFe0Pnc3FcwLcThuqa1WEQXANaBaw4=; b=CWJR3+5pPK2sDTm0AdRaRaUUf5vc43rOc88aXjnpO/f/D1kz6RysiClxMP7Phfi45q tOZYmatrQWXVdywz+MaInipnT3P3TbXR+pYYhxmTJ2W9ErEOuz4n1c3jLbPQpIgPbSUM DikXg3OgGDCF+sqiyft9Ua1vOaE6tVg2BS/fLBxrpC54FSgOsEWExRInOQamvkNH3BvX K3Arl/ScYCA+gM9H2//qmFHN/cOy3ElqNf3Eb21Rd4Pmv9p563qLkR0y13x1rq/U1J2z zNCUFzOQQWjz+DRKlSTOMzGnRsJUYxaXQL1yYkGBLq+Da6weYvfytYnSbpOMNVPpvqFa bIFA== X-Gm-Message-State: AOJu0Yx0Dg4HhMfVTnGHHn13WgUUaeT9wOVIydQCPoLtYZCrym/9Po21 49toYpkJa7IDwkglOjsaBV6lxPhRbrhbPfoHkchkPWJ0fYOA8M2EtFuMVO3At4e3db1p940WAf2 FfWczL1alLO/abSI= X-Received: by 2002:adf:ea46:0:b0:319:5234:5c92 with SMTP id j6-20020adfea46000000b0031952345c92mr991652wrn.35.1695366521874; Fri, 22 Sep 2023 00:08:41 -0700 (PDT) X-Google-Smtp-Source: AGHT+IG02HYVlxwI9+3ZDqaZGIK64u65OFG9u8GfhI4GFppH1eUv+kvAH1plrNDYSBgfA28RUhIkYw== X-Received: by 2002:adf:ea46:0:b0:319:5234:5c92 with SMTP id j6-20020adfea46000000b0031952345c92mr991640wrn.35.1695366521372; Fri, 22 Sep 2023 00:08:41 -0700 (PDT) Received: from ?IPV6:2003:cb:c71a:7100:dfaf:df8b:54b9:7303? (p200300cbc71a7100dfafdf8b54b97303.dip0.t-ipconnect.de. [2003:cb:c71a:7100:dfaf:df8b:54b9:7303]) by smtp.gmail.com with ESMTPSA id h16-20020adffd50000000b0031ad5fb5a0fsm3680632wrs.58.2023.09.22.00.08.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 22 Sep 2023 00:08:40 -0700 (PDT) Message-ID: <998a0ef6-a74c-feec-eca2-644aee91f27b@redhat.com> Date: Fri, 22 Sep 2023 09:08:39 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [RFC PATCH v2 02/21] RAMBlock: Add support of KVM private gmem Content-Language: en-US To: Xiaoyao Li , Paolo Bonzini , Igor Mammedov , "Michael S. Tsirkin" , Marcel Apfelbaum , Richard Henderson , Peter Xu , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , Cornelia Huck , =?UTF-8?Q?Daniel_P=2e_Berrang=c3=a9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, Michael Roth , isaku.yamahata@gmail.com, Sean Christopherson , Claudio Fontana References: <20230914035117.3285885-1-xiaoyao.li@intel.com> <20230914035117.3285885-3-xiaoyao.li@intel.com> <678bf0bf-57e7-a596-1ddf-6d0b47cd8677@redhat.com> <6eeb5568-2faa-85c3-8f42-ed6317ea376c@intel.com> From: David Hildenbrand Organization: Red Hat In-Reply-To: <6eeb5568-2faa-85c3-8f42-ed6317ea376c@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=170.10.129.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -35 X-Spam_score: -3.6 X-Spam_bar: --- X-Spam_report: (-3.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-1.473, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 22.09.23 02:22, Xiaoyao Li wrote: > On 9/21/2023 4:55 PM, David Hildenbrand wrote: >> On 14.09.23 05:50, Xiaoyao Li wrote: >>> From: Chao Peng >>> >>> Add KVM gmem support to RAMBlock so both normal hva based memory >>> and kvm gmem fd based private memory can be associated in one RAMBlock. >>> >>> Introduce new flag RAM_KVM_GMEM. It calls KVM ioctl to create private >>> gmem for the RAMBlock when it's set. >> >> >> But who sets RAM_KVM_GMEM and when? > > The answer is in the next patch. When `private` property of memory > backend is set to true, it will pass RAM_KVM_GMEM flag to > memory_region_init_ram_*() Okay, assuming that patch (and property) will go away, I assume this flag can also go away, right? -- Cheers, David / dhildenb