From nobody Mon Feb 9 03:14:08 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass(p=none dis=none) header.from=redhat.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1534176123836519.290467272606; Mon, 13 Aug 2018 09:02:03 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 8138CE8CD3; Mon, 13 Aug 2018 16:02:01 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 06644171B2; Mon, 13 Aug 2018 16:02:01 +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 9B6641800C99; Mon, 13 Aug 2018 16:02:00 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w7DG12lg001496 for ; Mon, 13 Aug 2018 12:01:02 -0400 Received: by smtp.corp.redhat.com (Postfix) id BC8942166BA5; Mon, 13 Aug 2018 16:01:02 +0000 (UTC) Received: from angien.brq.redhat.com (unknown [10.43.2.136]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5854D2166BA0 for ; Mon, 13 Aug 2018 16:01:01 +0000 (UTC) From: Peter Krempa To: libvir-list@redhat.com Date: Mon, 13 Aug 2018 18:00:05 +0200 Message-Id: <5b8a1a68604b1527e2e8011faa41d85504501644.1534173735.git.pkrempa@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-loop: libvir-list@redhat.com Subject: [libvirt] [PATCHv2 31/62] qemu: domain: Add field for storing node name for copy-on-read 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: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 13 Aug 2018 16:02:02 +0000 (UTC) X-ZohoMail: RDMRC_0 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" The copy-on-read feature is expressed by adding a new node layer in qemu when using -blockdev. Since we will keep these per-disk (as opposed to per storage source) we need to store the appropriate node names in the disk definition. Signed-off-by: Peter Krempa --- src/qemu/qemu_domain.c | 11 +++++++++++ src/qemu/qemu_domain.h | 1 + tests/qemustatusxml2xmldata/modern-in.xml | 3 +++ 3 files changed, 15 insertions(+) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 3058ceca79..e0dd3c0b15 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -1066,6 +1066,7 @@ qemuDomainDiskPrivateDispose(void *obj) VIR_FREE(priv->blockJobError); virStorageSourceFree(priv->migrSource); VIR_FREE(priv->backendQomName); + VIR_FREE(priv->nodeCopyOnRead); } static virClassPtr qemuDomainStorageSourcePrivateClass; @@ -2131,6 +2132,7 @@ qemuDomainDiskPrivateParse(xmlXPathContextPtr ctxt, qemuDomainDiskPrivatePtr priv =3D QEMU_DOMAIN_DISK_PRIVATE(disk); priv->backendQomName =3D virXPathString("string(./qom/@backend)", ctxt= ); + priv->nodeCopyOnRead =3D virXPathString("string(./nodenames/nodename[@= type=3D'copyOnRead']/@name)", ctxt); return 0; } @@ -2144,6 +2146,15 @@ qemuDomainDiskPrivateFormat(virDomainDiskDefPtr disk, virBufferEscapeString(buf, "\n", priv->backendQom= Name); + if (priv->nodeCopyOnRead) { + virBufferAddLit(buf, "\n"); + virBufferAdjustIndent(buf, 2); + virBufferEscapeString(buf, "\n", + priv->nodeCopyOnRead); + virBufferAdjustIndent(buf, -2); + virBufferAddLit(buf, "\n"); + } + return 0; } diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index 7d0b304727..d3147cb69a 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -398,6 +398,7 @@ struct _qemuDomainDiskPrivate { bool removable; /* device media can be removed/changed */ char *backendQomName; /* QOM path to the eligible block backend */ + char *nodeCopyOnRead; /* nodename of the disk-wide copy-on-read blockd= ev layer */ }; # define QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(src) \ diff --git a/tests/qemustatusxml2xmldata/modern-in.xml b/tests/qemustatusxm= l2xmldata/modern-in.xml index 21d4faca66..612090786a 100644 --- a/tests/qemustatusxml2xmldata/modern-in.xml +++ b/tests/qemustatusxml2xmldata/modern-in.xml @@ -333,6 +333,9 @@
+ + + --=20 2.16.2 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list