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 623B3CD54A9 for ; Tue, 19 Sep 2023 09:47:11 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qiXJp-0006bN-QB; Tue, 19 Sep 2023 05:47:01 -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 1qiXJG-000695-Ve for qemu-devel@nongnu.org; Tue, 19 Sep 2023 05:46:27 -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 1qiXJE-000810-FW for qemu-devel@nongnu.org; Tue, 19 Sep 2023 05:46:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1695116778; 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; bh=pdeA7r4X94pTfbDHEA/XGuHKB/dfS6XI9f+ITzNO6KE=; b=JNxdREuC1X51fiK7QimZHtXXaZ8WtuzkHt44c0LSuGpo2ifEnVgeSUg9R1i1Hkgn2oZRa6 hnbZUoA8LQDasPuKxvvmm4sK/hOj7bBRYdhrIysnrEhno0r6E8P+yUAE/cnTuvZ6j8viVF 038x3DFgnzdINR23sIR+4eEpzkIF+aI= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-85-D9Kqh9f0P7W0AU_qTjjjmg-1; Tue, 19 Sep 2023 05:46:17 -0400 X-MC-Unique: D9Kqh9f0P7W0AU_qTjjjmg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7901E3822553; Tue, 19 Sep 2023 09:46:16 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.39.192.25]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 510AE2156701; Tue, 19 Sep 2023 09:46:16 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 5E8DB21E6900; Tue, 19 Sep 2023 11:46:15 +0200 (CEST) From: Markus Armbruster To: Xiaoyao Li Cc: Paolo Bonzini , David Hildenbrand , Igor Mammedov , "Michael S. Tsirkin" , Marcel Apfelbaum , Richard Henderson , Peter Xu , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= , Cornelia Huck , Daniel P. =?utf-8?Q?Berrang=C3=A9?= , Eric Blake , Marcelo Tosatti , qemu-devel@nongnu.org, kvm@vger.kernel.org, Michael Roth , isaku.yamahata@gmail.com, Sean Christopherson , Claudio Fontana Subject: Re: [RFC PATCH v2 03/21] HostMem: Add private property and associate it with RAM_KVM_GMEM References: <20230914035117.3285885-1-xiaoyao.li@intel.com> <20230914035117.3285885-4-xiaoyao.li@intel.com> Date: Tue, 19 Sep 2023 11:46:15 +0200 In-Reply-To: <20230914035117.3285885-4-xiaoyao.li@intel.com> (Xiaoyao Li's message of "Wed, 13 Sep 2023 23:50:59 -0400") Message-ID: <8734zazeag.fsf@pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 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, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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 Xiaoyao Li writes: > From: Isaku Yamahata > > Add a new property "private" to memory backends. When it's set to true, > it indicates the RAMblock of the backend also requires kvm gmem. Can you add a brief explanation why you need the property? > Signed-off-by: Isaku Yamahata > Signed-off-by: Xiaoyao Li [...] > diff --git a/qapi/qom.json b/qapi/qom.json > index fa3e88c8e6ab..d28c5403bc0f 100644 > --- a/qapi/qom.json > +++ b/qapi/qom.json > @@ -605,6 +605,9 @@ > # @reserve: if true, reserve swap space (or huge pages) if applicable > # (default: true) (since 6.1) > # > +# @private: if true, use KVM gmem private memory (default: false) > +# (since 8.2) > +# > # @size: size of the memory region in bytes > # > # @x-use-canonical-path-for-ramblock-id: if true, the canonical path > @@ -631,6 +634,7 @@ > '*prealloc-context': 'str', > '*share': 'bool', > '*reserve': 'bool', > + '*private': 'bool', > 'size': 'size', > '*x-use-canonical-path-for-ramblock-id': 'bool' } }