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GET /api/1.1/patches/2223420/?format=api
{ "id": 2223420, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2223420/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260415095832.9631-1-zhenzhong.duan@intel.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260415095832.9631-1-zhenzhong.duan@intel.com>", "date": "2026-04-15T09:58:32", "name": "intel_iommu: Re-expose VTD_ECAP_PT", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "07e5638fb7b168a23c8a22ea702bd2ed61f2bfed", "submitter": { "id": 81636, "url": "http://patchwork.ozlabs.org/api/1.1/people/81636/?format=api", "name": "Zhenzhong Duan", "email": "zhenzhong.duan@intel.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260415095832.9631-1-zhenzhong.duan@intel.com/mbox/", "series": [ { "id": 499955, "url": "http://patchwork.ozlabs.org/api/1.1/series/499955/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499955", "date": "2026-04-15T09:58:32", "name": "intel_iommu: Re-expose VTD_ECAP_PT", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499955/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223420/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223420/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=SW+CCoN5;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fwc7b3wb6z1yHM\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 15 Apr 2026 19:59:38 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1wCx1N-0001Yg-GV; Wed, 15 Apr 2026 05:58:57 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <zhenzhong.duan@intel.com>)\n id 1wCx1H-0001Xv-D1\n for qemu-devel@nongnu.org; Wed, 15 Apr 2026 05:58:53 -0400", "from mgamail.intel.com ([198.175.65.19])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <zhenzhong.duan@intel.com>)\n id 1wCx1E-0007Va-Pd\n for qemu-devel@nongnu.org; Wed, 15 Apr 2026 05:58:51 -0400", "from fmviesa002.fm.intel.com ([10.60.135.142])\n by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 15 Apr 2026 02:58:42 -0700", "from unknown (HELO gnr-sp-2s-612.sh.intel.com) ([10.112.230.229])\n by fmviesa002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 15 Apr 2026 02:58:40 -0700" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple;\n d=intel.com; i=@intel.com; q=dns/txt; s=Intel;\n t=1776247129; x=1807783129;\n h=from:to:cc:subject:date:message-id:mime-version:\n content-transfer-encoding;\n bh=8hatjBc+edWAbEN26Ul9Ih+6a76CtBZCWOyl3l0WcRE=;\n b=SW+CCoN5/QuXBlsj7dEvaWpwJNeUwBIo/yTmtkx0UbSqgAp6uNuutsr6\n mZ7ZtLKIEhrJyNJ5d1StYSKaryXXFkiaP5AbUPimbnYaZagO36rZCIL5E\n vBZrO6a8ZqpEXgNH3HA6AlkRIfPGjbE5qKSMgIwVjYmk8NHxZayAQHyLh\n H9AxrpDf8md/JZ6DPytfr1xphbmO9u3T7O8mOK8Ej7U9gCRmPWG9/2cE1\n JFBONnJkS8/ckMe5oWFcTTW++SgLA9fHSSaBr2EKFJChyKfGrMEAqjFOe\n A8zgxX1NK5RU0rarreYEWE65Fwc9e70fLnAfVriem4hsMnHZ8EC84cl6r g==;", "X-CSE-ConnectionGUID": [ "MQi7iuClRpeToajLjesSgA==", "dnfPAyV4Rh+xZNMF/HiMhQ==" ], "X-CSE-MsgGUID": [ "8nF++n5tRxiW/jVXRTy6cg==", "zCg73EVURqWAmUwJRnwgSQ==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6800,10657,11759\"; a=\"77125582\"", "E=Sophos;i=\"6.23,179,1770624000\"; d=\"scan'208\";a=\"77125582\"", "E=Sophos;i=\"6.23,179,1770624000\"; d=\"scan'208\";a=\"253596600\"" ], "X-ExtLoop1": "1", "From": "Zhenzhong Duan <zhenzhong.duan@intel.com>", "To": "qemu-devel@nongnu.org", "Cc": "mst@redhat.com, jasowang@redhat.com, philmd@linaro.org,\n Zhenzhong Duan <zhenzhong.duan@intel.com>, Yi Liu <yi.l.liu@intel.com>,\n\t=?utf-8?q?Cl=C3=A9ment_Mathieu--Drif?= <clement.mathieu--drif@bull.com>", "Subject": "[PATCH] intel_iommu: Re-expose VTD_ECAP_PT", "Date": "Wed, 15 Apr 2026 05:58:32 -0400", "Message-ID": "<20260415095832.9631-1-zhenzhong.duan@intel.com>", "X-Mailer": "git-send-email 2.47.3", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=198.175.65.19;\n envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com", "X-Spam_score_int": "-48", "X-Spam_score": "-4.9", "X-Spam_bar": "----", "X-Spam_report": "(-4.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.54,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001,\n RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Commit c7b2e22bd957 cleared VTD_ECAP_PT in ecap register and set PHMT bit\nin cap register, makes vIOMMU passthrough unsupported, fix it.\n\nFixes: c7b2e22bd957 (\"hw/i386/x86-iommu: Remove X86IOMMUState::pt_supported field\")\nSigned-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>\n---\n hw/i386/intel_iommu.c | 6 +++---\n 1 file changed, 3 insertions(+), 3 deletions(-)", "diff": "diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c\nindex f395fa248c..6b8f75a8b6 100644\n--- a/hw/i386/intel_iommu.c\n+++ b/hw/i386/intel_iommu.c\n@@ -4998,8 +4998,8 @@ static void vtd_cap_init(IntelIOMMUState *s)\n {\n X86IOMMUState *x86_iommu = X86_IOMMU_DEVICE(s);\n \n- s->cap = VTD_CAP_FRO | VTD_CAP_NFR | VTD_CAP_ND | VTD_ECAP_PT |\n- VTD_CAP_MAMV | VTD_CAP_PSI | VTD_CAP_SSLPS | VTD_CAP_DRAIN |\n+ s->cap = VTD_CAP_FRO | VTD_CAP_NFR | VTD_CAP_ND | VTD_CAP_MAMV |\n+ VTD_CAP_PSI | VTD_CAP_SSLPS | VTD_CAP_DRAIN |\n VTD_CAP_ESRTPS | VTD_CAP_MGAW(s->aw_bits);\n if (x86_iommu->dma_translation) {\n if (s->aw_bits >= VTD_HOST_AW_39BIT) {\n@@ -5009,7 +5009,7 @@ static void vtd_cap_init(IntelIOMMUState *s)\n s->cap |= VTD_CAP_SAGAW_48bit;\n }\n }\n- s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO;\n+ s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO | VTD_ECAP_PT;\n \n if (x86_iommu_ir_supported(x86_iommu)) {\n s->ecap |= VTD_ECAP_IR | VTD_ECAP_MHMV;\n", "prefixes": [] }