From nobody Wed Feb 11 07:26:20 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.zoho.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 149319571881272.85216636562711; Wed, 26 Apr 2017 01:35:18 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6DC8D7AE85; Wed, 26 Apr 2017 08:35:16 +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 35D188578B; Wed, 26 Apr 2017 08:35:16 +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 CD7C618523D2; Wed, 26 Apr 2017 08:35:15 +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 v3Q8TQAG004366 for ; Wed, 26 Apr 2017 04:29:26 -0400 Received: by smtp.corp.redhat.com (Postfix) id 32FAA19CAC; Wed, 26 Apr 2017 08:29:26 +0000 (UTC) Received: from dnr.brq.redhat.com (dhcp129-199.brq.redhat.com [10.34.129.199]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7A8875C47D; Wed, 26 Apr 2017 08:29:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 6DC8D7AE85 Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=libvir-list-bounces@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 6DC8D7AE85 From: =?UTF-8?q?J=C3=A1n=20Tomko?= To: libvir-list@redhat.com Date: Wed, 26 Apr 2017 10:29:06 +0200 Message-Id: <55dc469c8e95c58f99b6d9c469699f63b4d00a13.1493195103.git.jtomko@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-loop: libvir-list@redhat.com Cc: peterx@redhat.com Subject: [libvirt] [PATCHv3 5/6] conf: add caching attribute to iommu device 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 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Wed, 26 Apr 2017 08:35:17 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Add a new attribute to control the caching mode. https://bugzilla.redhat.com/show_bug.cgi?id=3D1427005 --- docs/formatdomain.html.in | 9 ++++ docs/schemas/domaincommon.rng | 5 +++ src/conf/domain_conf.c | 24 +++++++++-- src/conf/domain_conf.h | 1 + .../qemuxml2argv-intel-iommu-caching.xml | 50 ++++++++++++++++++= ++++ .../qemuxml2xmlout-intel-iommu-caching.xml | 1 + tests/qemuxml2xmltest.c | 1 + 7 files changed, 88 insertions(+), 3 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching= .xml create mode 120000 tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu-cac= hing.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index e1a4625..266b16e 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -7391,6 +7391,15 @@ qemu-kvm -net nic,model=3D? /dev/null (QEMU only)

+
caching
+
+

+ The caching attribute with possible values + on and off can be used to + turn on the caching mode. Since 3.3.0<= /span> + (QEMU only) +

+
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index cc10209..74cd863 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -3899,6 +3899,11 @@ + + + + + diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 650d206..6c696c8 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -14171,6 +14171,15 @@ virDomainIOMMUDefParseXML(xmlNodePtr node, iommu->intremap =3D val; } =20 + VIR_FREE(tmp); + if ((tmp =3D virXPathString("string(./driver/@caching)", ctxt))) { + if ((val =3D virTristateSwitchTypeFromString(tmp)) < 0) { + virReportError(VIR_ERR_XML_ERROR, _("unknown caching value: %s= "), tmp); + goto cleanup; + } + iommu->caching =3D val; + } + ret =3D iommu; iommu =3D NULL; =20 @@ -24118,9 +24127,18 @@ virDomainIOMMUDefFormat(virBufferPtr buf, =20 virBufferAdjustIndent(&childBuf, virBufferGetIndent(buf, false) + 2); =20 - if (iommu->intremap !=3D VIR_TRISTATE_SWITCH_ABSENT) { - virBufferAsprintf(&childBuf, "\n", - virTristateSwitchTypeToString(iommu->intremap)); + if (iommu->intremap !=3D VIR_TRISTATE_SWITCH_ABSENT || + iommu->caching !=3D VIR_TRISTATE_SWITCH_ABSENT) { + virBufferAddLit(&childBuf, "intremap) { + virBufferAsprintf(&childBuf, " intremap=3D'%s'", + virTristateSwitchTypeToString(iommu->intrema= p)); + } + if (iommu->caching !=3D VIR_TRISTATE_SWITCH_ABSENT) { + virBufferAsprintf(&childBuf, " caching=3D'%s'", + virTristateSwitchTypeToString(iommu->caching= )); + } + virBufferAddLit(&childBuf, "/>\n"); } =20 virBufferAsprintf(buf, " + QEMUGuest1 + c7a5fdbd-edaf-9455-926a-d65c16db1809 + 219100 + 219100 + 1 + + hvm + + + + destroy + restart + destroy + + /usr/bin/qemu-system-x86_64 + + + +
+ + + + +
+ + + + +
+ + +
+ + +
+ + + + +
+ + + + + + + + + diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu-caching.xm= l b/tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu-caching.xml new file mode 120000 index 0000000..6935d93 --- /dev/null +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu-caching.xml @@ -0,0 +1 @@ +../qemuxml2argvdata/qemuxml2argv-intel-iommu-caching.xml \ No newline at end of file diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index 40425f5..848da4f 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -1123,6 +1123,7 @@ mymain(void) QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_MACHINE_IOMMU); DO_TEST("intel-iommu-irqchip", NONE); + DO_TEST("intel-iommu-caching", NONE); =20 DO_TEST("cpu-check-none", NONE); DO_TEST("cpu-check-partial", NONE); --=20 2.10.2 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list