From owner-freebsd-current@FreeBSD.ORG Thu Apr 9 08:17:46 2015 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 0F7BF763 for ; Thu, 9 Apr 2015 08:17:46 +0000 (UTC) Received: from violet.upc.es (violet.upc.es [147.83.2.51]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "relay.upc.es", Issuer "TERENA SSL CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8964CB69 for ; Thu, 9 Apr 2015 08:17:44 +0000 (UTC) Received: from ackerman2.upc.es (ackerman2.upc.es [147.83.2.244]) by violet.upc.es (8.14.1/8.13.1) with ESMTP id t398Hfhw001168 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=FAIL) for ; Thu, 9 Apr 2015 10:17:41 +0200 Received: from [10.0.2.151] ([147.83.40.10]) (authenticated bits=0) by ackerman2.upc.es (8.14.4/8.14.4) with ESMTP id t398HfaG030135 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Thu, 9 Apr 2015 10:17:41 +0200 Message-ID: <552635A5.5070707@entel.upc.edu> Date: Thu, 09 Apr 2015 10:17:41 +0200 From: =?UTF-8?B?R3VzdGF1IFDDqXJleg==?= User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: freebsd-current@freebsd.org Subject: No IOMMU/DMAR with DELL 3020 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Greylist: ACL matched, not delayed by milter-greylist-4.4.3 (violet.upc.es [147.83.2.51]); Thu, 09 Apr 2015 10:17:42 +0200 (CEST) X-Greylist: Default is to whitelist mail, not delayed by milter-greylist-4.4.3 (ackerman2.upc.es [147.83.2.244]); Thu, 09 Apr 2015 10:17:41 +0200 (CEST) X-Scanned-By: MIMEDefang 2.70 on 147.83.2.244 X-Mail-Scanned: Criba 2.0 + Clamd X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Apr 2015 08:17:46 -0000 Hi, I'm trying xen dom0 on a DELL optiplex 3020 machine. The machine runs: root@xen_test:~ # uname -arn FreeBSD xen_test 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r281184: The box has a core i5-4590 equipped with VT-d: root@xen_test:~ # dmesg|grep EPT VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID Secondary Processor Controls=0x7cff EPT Features=0x6334141 Also the box has the last BIOS firmware from its vendor (DELL). However, even if VT-d is there, iommu is not enabled. Booting in verbose mode shows me this: root@xen_test:~ # dmesg|grep DMAR ACPI: No DMAR table found which is the reason iommu support isn't enabled. Shouldn't be DMAR be detected if VT-d is there? Any info I can provide, let me know. Best, Gustau -- --------------------------------------------------------------------------- Prou top-posting : http://ca.wikipedia.org/wiki/Top-posting Stop top-posting : http://en.wikipedia.org/wiki/Posting_style O O O Gustau Pérez i Querol O O O Unitat de Gestió dels departaments O O O Matemàtica Aplicada IV i Enginyeria Telemàtica Universitat Politècnica de Catalunya Edifici C3 - Despatx S101-B UPC Campus Nord UPC C/ Jordi Girona, 1-3 08034 - Barcelona