From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 26DFD22D785 for ; Fri, 21 Mar 2025 17:19:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742577594; cv=none; b=H9es6F2L+qhwS5ksCDpAu1WL/KQswNbXjjDdFS4P8frTwD6Et4Xndq5PuOFiX2YlBHo1F4oHd3tV929CsY+FzUOI7jSijcievRMogV3e+MVdBJmQGVKpAEwjSX6gBWz6rm5VbM077CZErK1c91vRcu9tuF53yVlFjP7T0Nodgw4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742577594; c=relaxed/simple; bh=5qqe5wfjVMCe8ki0ELgpVyKjy/R1qRLhW9Ip/y7Rh/E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ncryBl63jzRsU0zkat4/4uUlXggzQmiABeL8cMJAJWROZHe0g2q/a7Cg3ZxVYjeSx1Cei6pfWscopYjZFnEEy4LXLwSipp3IZRLMCa6CrZfkhyE2No6r+MGx6V/2wUFQon1mb9OwFTeDLbgWUhos5kUPA+RV6M4XJxcaG7j0+k8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=FyrJ9Kd3; arc=none smtp.client-ip=192.198.163.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="FyrJ9Kd3" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1742577592; x=1774113592; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=5qqe5wfjVMCe8ki0ELgpVyKjy/R1qRLhW9Ip/y7Rh/E=; b=FyrJ9Kd3hbYmzn+RmjjC2vahhZnsGjEfzeAOIDCddEc1u/aOMJhMiwSW 5tNwn4bVSfoifpI2kr3gyB5jlnhgQeWaZhLOyU5Wijd9M9lpOjZzxlBRV VSl8OY8vNRVpC7oOVZsno9si2iOFqifpD1WTDKEo4BXKzD+cAvAJIwWM8 FNgJ+qGlfRGNxyT6K4dXToBVdOOS1vpVezdH8VL7UYcuX+DIbzO00XeHo oq+ta2BSAptCBqcKwdC+gt7uIuRArqPtJfVyYw4D4g0Fl4D3uMB0tl88r aRZqfgiPIW2un+QFQnNU76iT1VOvsYoyYLMyXyP32JNNefXy3QtxUPvsX Q==; X-CSE-ConnectionGUID: OtofAIj6SFO7d/zp/8/wmA== X-CSE-MsgGUID: kZmUON8aTj2T6sP4vs8f0g== X-IronPort-AV: E=McAfee;i="6700,10204,11380"; a="43976830" X-IronPort-AV: E=Sophos;i="6.14,265,1736841600"; d="scan'208";a="43976830" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Mar 2025 10:19:47 -0700 X-CSE-ConnectionGUID: ObPo1oSRSGm3H3B1Zu9phg== X-CSE-MsgGUID: hnkTZn+NQ0GDLfzBap7BZw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,265,1736841600"; d="scan'208";a="123914511" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by fmviesa010.fm.intel.com with ESMTP; 21 Mar 2025 10:19:47 -0700 From: Yi Liu To: kevin.tian@intel.com, jgg@nvidia.com Cc: joro@8bytes.org, baolu.lu@linux.intel.com, yi.l.liu@intel.com, iommu@lists.linux.dev, nicolinc@nvidia.com Subject: [PATCH v11 13/18] iommu/vt-d: Add IOMMU_HWPT_ALLOC_PASID support Date: Fri, 21 Mar 2025 10:19:35 -0700 Message-Id: <20250321171940.7213-14-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250321171940.7213-1-yi.l.liu@intel.com> References: <20250321171940.7213-1-yi.l.liu@intel.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Intel iommu driver just treats it as a nop since Intel VT-d does not have special requirement on domains attached to either the PASID or RID of a PASID-capable device. Reviewed-by: Lu Baolu Reviewed-by: Jason Gunthorpe Reviewed-by: Kevin Tian Signed-off-by: Yi Liu --- drivers/iommu/intel/iommu.c | 3 ++- drivers/iommu/intel/nested.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index cc46098f875b..7bc890609b90 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -3338,7 +3338,8 @@ intel_iommu_domain_alloc_paging_flags(struct device *dev, u32 flags, bool first_stage; if (flags & - (~(IOMMU_HWPT_ALLOC_NEST_PARENT | IOMMU_HWPT_ALLOC_DIRTY_TRACKING))) + (~(IOMMU_HWPT_ALLOC_NEST_PARENT | IOMMU_HWPT_ALLOC_DIRTY_TRACKING | + IOMMU_HWPT_ALLOC_PASID))) return ERR_PTR(-EOPNOTSUPP); if (nested_parent && !nested_supported(iommu)) return ERR_PTR(-EOPNOTSUPP); diff --git a/drivers/iommu/intel/nested.c b/drivers/iommu/intel/nested.c index aba92c00b427..6ac5c534bef4 100644 --- a/drivers/iommu/intel/nested.c +++ b/drivers/iommu/intel/nested.c @@ -198,7 +198,7 @@ intel_iommu_domain_alloc_nested(struct device *dev, struct iommu_domain *parent, struct dmar_domain *domain; int ret; - if (!nested_supported(iommu) || flags) + if (!nested_supported(iommu) || flags & ~IOMMU_HWPT_ALLOC_PASID) return ERR_PTR(-EOPNOTSUPP); /* Must be nested domain */ -- 2.34.1