From nobody Sun Feb 8 14:41:48 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of redhat.com designates 207.211.31.81 as permitted sender) client-ip=207.211.31.81; envelope-from=libvir-list-bounces@redhat.com; helo=us-smtp-1.mimecast.com; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of redhat.com designates 207.211.31.81 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1590493399; cv=none; d=zohomail.com; s=zohoarc; b=VLr4kiHJoGbANKBdKbNc8CvR5NOXxHp6/pyXnew02GEB8NF9t3DhWrTNwwAmCtUdD6FSZQOD6MjXzWQ9gtFx+RmT3ENvYO8aU28q8KSMWldx/fcWmX5W2i68vwXgnWiPJ+PP2j/adAo09EmcykGvOh6uehORG3jPKhQafgHAhPA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1590493399; h=Content-Type:Content-Transfer-Encoding:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=QKkYJalD0jdrpMuLh6mohr2StjGv4m/cMsFLf2OfILk=; b=aw7n3qdE3mjsT3bNGIy7BaOdVoXRawNlkS7OhwelR4HPb1yqHm7oHHAy937kFNy5ATNYHC45QYHYguSwFi92h3+JEX+tmPvlvY+wyiUquV5p4bCby3kKn0mWwBXzqYbskgpFCShf/oYVizJ0QhS0dT44PrTFs22hQoRfc9If9lQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of redhat.com designates 207.211.31.81 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass header.from= (p=none dis=none) header.from= Return-Path: Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) by mx.zohomail.com with SMTPS id 1590493399720493.0644620328693; Tue, 26 May 2020 04:43:19 -0700 (PDT) Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-3-j7ZU_sFPN_CXRTePFUoOuA-1; Tue, 26 May 2020 07:43:16 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id BDE431005510; Tue, 26 May 2020 11:43:10 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 9B96160CCC; Tue, 26 May 2020 11:43:10 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 6CC285FBF1; Tue, 26 May 2020 11:43:10 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 04QBh6ub004475 for ; Tue, 26 May 2020 07:43:06 -0400 Received: by smtp.corp.redhat.com (Postfix) id BED0B649D5; Tue, 26 May 2020 11:43:06 +0000 (UTC) Received: from localhost.localdomain (unknown [10.40.195.106]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3ED6079C3B for ; Tue, 26 May 2020 11:43:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590493398; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=QKkYJalD0jdrpMuLh6mohr2StjGv4m/cMsFLf2OfILk=; b=PKEVCgsK7tV/tU+TWdMSrF2ErbLfab2ljrl3NDZQ10yA6ofTGgAmv3DLOxysbL5RFE6xfN o1l7hc+dXp3O1X9ZfMl4ZXQcfXRdwblubEUbF8R/Z2BOY+owQN51G5d1mHiJEoUReGdQyg AQxoGe/p/DagaLvJPiZbCeDo841Or9o= X-MC-Unique: j7ZU_sFPN_CXRTePFUoOuA-1 From: Michal Privoznik To: libvir-list@redhat.com Subject: [PATCH 5/8] qemu: Introduce QEMU_CAPS_MACHINE_MEMORY_BACKEND Date: Tue, 26 May 2020 13:42:54 +0200 Message-Id: <32cc828f509ce7fbed362cd461bdab93eee0e622.1590493250.git.mprivozn@redhat.com> In-Reply-To: References: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-loop: libvir-list@redhat.com X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @redhat.com) Content-Type: text/plain; charset="utf-8" This capability corresponds to '-machine memory-backend=3D' command line argument. Unfortunately, it is not possible for us to detect the capability via QMP and therefore we have to have a version check. Signed-off-by: Michal Privoznik --- src/qemu/qemu_capabilities.c | 7 +++++++ src/qemu/qemu_capabilities.h | 3 +++ tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml | 1 + tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml | 1 + tests/qemucapabilitiesdata/caps_5.0.0.riscv64.xml | 1 + tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_5.1.0.x86_64.xml | 1 + 7 files changed, 15 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index f12769635a..801200c4e7 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -582,6 +582,9 @@ VIR_ENUM_IMPL(virQEMUCaps, "tcg", "virtio-blk-pci.scsi.default.disabled", "pvscsi", + + /* 370 */ + "machine.memory-backend", ); =20 =20 @@ -4985,6 +4988,10 @@ virQEMUCapsInitQMPVersionCaps(virQEMUCapsPtr qemuCap= s) /* TCG couldn't be disabled nor queried until QEMU 2.10 */ if (qemuCaps->version < 2010000) virQEMUCapsSet(qemuCaps, QEMU_CAPS_TCG); + + /* no way to query for -machine memory-backend */ + if (qemuCaps->version >=3D 5000000) + virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_MEMORY_BACKEND); } =20 =20 diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 076ecad0f7..bc2c432609 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -564,6 +564,9 @@ typedef enum { /* virQEMUCapsFlags grouping marker for = syntax-check */ QEMU_CAPS_VIRTIO_BLK_SCSI_DEFAULT_DISABLED, /* virtio-blk-pci.scsi dis= abled by default */ QEMU_CAPS_SCSI_PVSCSI, /* -device pvscsi */ =20 + /* 370 */ + QEMU_CAPS_MACHINE_MEMORY_BACKEND, /* -machine memory-backend */ + QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; =20 diff --git a/tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml b/tests/qemu= capabilitiesdata/caps_5.0.0.aarch64.xml index 9b24490137..97b85bce47 100644 --- a/tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml +++ b/tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml @@ -193,6 +193,7 @@ + 5000000 0 61700241 diff --git a/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml b/tests/qemuca= pabilitiesdata/caps_5.0.0.ppc64.xml index 69e5b4c8fa..4685672f36 100644 --- a/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml +++ b/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml @@ -201,6 +201,7 @@ + 5000000 0 42900241 diff --git a/tests/qemucapabilitiesdata/caps_5.0.0.riscv64.xml b/tests/qemu= capabilitiesdata/caps_5.0.0.riscv64.xml index 7a091d27db..c04c42c0a4 100644 --- a/tests/qemucapabilitiesdata/caps_5.0.0.riscv64.xml +++ b/tests/qemucapabilitiesdata/caps_5.0.0.riscv64.xml @@ -189,6 +189,7 @@ + 5000000 0 0 diff --git a/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml b/tests/qemuc= apabilitiesdata/caps_5.0.0.x86_64.xml index ba39fef713..931aee1259 100644 --- a/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml @@ -234,6 +234,7 @@ + 5000000 0 43100241 diff --git a/tests/qemucapabilitiesdata/caps_5.1.0.x86_64.xml b/tests/qemuc= apabilitiesdata/caps_5.1.0.x86_64.xml index c2bc121f73..c1adce73ab 100644 --- a/tests/qemucapabilitiesdata/caps_5.1.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_5.1.0.x86_64.xml @@ -234,6 +234,7 @@ + 5000050 0 43100242 --=20 2.26.2