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GET /api/patches/2217068/?format=api
{ "id": 2217068, "url": "http://patchwork.ozlabs.org/api/patches/2217068/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260327160132.2946114-23-yilun.xu@linux.intel.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260327160132.2946114-23-yilun.xu@linux.intel.com>", "list_archive_url": null, "date": "2026-03-27T16:01:23", "name": "[v2,22/31] iommu/vt-d: Export a helper to do function for each dmar_drhd_unit", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "0d3e25ac3ad1eaba437f0ba40391fec319162426", "submitter": { "id": 87470, "url": "http://patchwork.ozlabs.org/api/people/87470/?format=api", "name": "Xu Yilun", "email": "yilun.xu@linux.intel.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260327160132.2946114-23-yilun.xu@linux.intel.com/mbox/", "series": [ { "id": 497793, "url": "http://patchwork.ozlabs.org/api/series/497793/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=497793", "date": "2026-03-27T16:01:02", "name": "PCI/TSM: PCIe Link Encryption Establishment via TDX platform services", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/497793/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2217068/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2217068/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-51308-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.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=EhEqOiPA;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-pci+bounces-51308-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com\n header.b=\"EhEqOiPA\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=198.175.65.14", "smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=linux.intel.com", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=linux.intel.com" ], "Received": [ "from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fj5vY5v6Qz1xy1\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 28 Mar 2026 03:39:21 +1100 (AEDT)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sea.lore.kernel.org (Postfix) with ESMTP id 3BFF8319B724\n\tfor <incoming@patchwork.ozlabs.org>; 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a=\"79565651\"", "E=Sophos;i=\"6.23,144,1770624000\";\n d=\"scan'208\";a=\"79565651\"", "E=Sophos;i=\"6.23,144,1770624000\";\n d=\"scan'208\";a=\"220516341\"" ], "X-ExtLoop1": "1", "From": "Xu Yilun <yilun.xu@linux.intel.com>", "To": "linux-coco@lists.linux.dev,\n\tlinux-pci@vger.kernel.org,\n\tdan.j.williams@intel.com,\n\tx86@kernel.org", "Cc": "chao.gao@intel.com,\n\tdave.jiang@intel.com,\n\tbaolu.lu@linux.intel.com,\n\tyilun.xu@linux.intel.com,\n\tyilun.xu@intel.com,\n\tzhenzhong.duan@intel.com,\n\tkvm@vger.kernel.org,\n\trick.p.edgecombe@intel.com,\n\tdave.hansen@linux.intel.com,\n\tkas@kernel.org,\n\txiaoyao.li@intel.com,\n\tvishal.l.verma@intel.com,\n\tlinux-kernel@vger.kernel.org", "Subject": "[PATCH v2 22/31] iommu/vt-d: Export a helper to do function for each\n dmar_drhd_unit", "Date": "Sat, 28 Mar 2026 00:01:23 +0800", "Message-Id": "<20260327160132.2946114-23-yilun.xu@linux.intel.com>", "X-Mailer": "git-send-email 2.25.1", "In-Reply-To": "<20260327160132.2946114-1-yilun.xu@linux.intel.com>", "References": "<20260327160132.2946114-1-yilun.xu@linux.intel.com>", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit" }, "content": "Enable the tdx-host module to get VTBAR address for every IOMMU device.\nThe VTBAR address is for TDX Module to identify the IOMMU device and\nsetup its trusted configuraion.\n\nSuggested-by: Lu Baolu <baolu.lu@linux.intel.com>\nSigned-off-by: Xu Yilun <yilun.xu@linux.intel.com>\n---\n include/linux/dmar.h | 2 ++\n drivers/iommu/intel/dmar.c | 16 ++++++++++++++++\n 2 files changed, 18 insertions(+)", "diff": "diff --git a/include/linux/dmar.h b/include/linux/dmar.h\nindex 692b2b445761..cd8d9f440975 100644\n--- a/include/linux/dmar.h\n+++ b/include/linux/dmar.h\n@@ -86,6 +86,8 @@ extern struct list_head dmar_drhd_units;\n \t\t\t\tdmar_rcu_check())\t\t\t\\\n \t\tif (i=drhd->iommu, 0) {} else \n \n+int do_for_each_drhd_unit(int (*fn)(struct dmar_drhd_unit *));\n+\n static inline bool dmar_rcu_check(void)\n {\n \treturn rwsem_is_locked(&dmar_global_lock) ||\ndiff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c\nindex 4f9571eee1d4..eea9ba691f99 100644\n--- a/drivers/iommu/intel/dmar.c\n+++ b/drivers/iommu/intel/dmar.c\n@@ -2452,3 +2452,19 @@ bool dmar_platform_optin(void)\n \treturn ret;\n }\n EXPORT_SYMBOL_GPL(dmar_platform_optin);\n+\n+int do_for_each_drhd_unit(int (*fn)(struct dmar_drhd_unit *))\n+{\n+\tstruct dmar_drhd_unit *drhd;\n+\tint ret;\n+\n+\tguard(rwsem_read)(&dmar_global_lock);\n+\n+\tfor_each_drhd_unit(drhd) {\n+\t\tret = fn(drhd);\n+\t\tif (ret)\n+\t\t\treturn ret;\n+\t}\n+\treturn 0;\n+}\n+EXPORT_SYMBOL_GPL(do_for_each_drhd_unit);\n", "prefixes": [ "v2", "22/31" ] }