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 X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8C979ECE589 for ; Thu, 26 Sep 2019 16:37:03 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 637BC21655 for ; Thu, 26 Sep 2019 16:37:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 637BC21655 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40790 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iDWlJ-0003ML-R9 for qemu-devel@archiver.kernel.org; Thu, 26 Sep 2019 12:37:01 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40982) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iDMoa-0002do-BI for qemu-devel@nongnu.org; Thu, 26 Sep 2019 01:59:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iDMoX-0001d0-VL for qemu-devel@nongnu.org; Thu, 26 Sep 2019 01:59:42 -0400 Received: from mga12.intel.com ([192.55.52.136]:6144) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iDMoX-0001OC-NB for qemu-devel@nongnu.org; Thu, 26 Sep 2019 01:59:41 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 25 Sep 2019 22:59:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,550,1559545200"; d="scan'208";a="189900932" Received: from a23004-02.sh.intel.com ([10.239.9.19]) by fmsmga007.fm.intel.com with ESMTP; 25 Sep 2019 22:59:31 -0700 From: qi1.zhang@intel.com To: qemu-devel@nongnu.org Subject: [PATCH] intel_iommu: TM field should not be in reserved bits Date: Thu, 26 Sep 2019 13:49:22 +0800 Message-Id: <20190926054922.21110-1-qi1.zhang@intel.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.136 X-Mailman-Approved-At: Thu, 26 Sep 2019 12:31:53 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qi1.zhang@intel.com, ehabkost@redhat.com, mst@redhat.com, pbonzini@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: "Zhang, Qi" When dt is supported, TM field should not be Reserved(0). Refer to VT-d Spec 9.8 Signed-off-by: Zhang, Qi Signed-off-by: Qi, Yadong --- hw/i386/intel_iommu.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index f1de8fdb75..2696ceeb9d 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -3567,6 +3567,13 @@ static void vtd_init(IntelIOMMUState *s) if (x86_iommu->dt_supported) { s->ecap |= VTD_ECAP_DT; + vtd_paging_entry_rsvd_field[1] &= ~(1ULL << 62); + vtd_paging_entry_rsvd_field[2] &= ~(1ULL << 62); + vtd_paging_entry_rsvd_field[3] &= ~(1ULL << 62); + + vtd_paging_entry_rsvd_field[5] &= ~(1ULL << 62); + vtd_paging_entry_rsvd_field[6] &= ~(1ULL << 62); + vtd_paging_entry_rsvd_field[7] &= ~(1ULL << 62); } if (x86_iommu->pt_supported) { -- 2.20.1