From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (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 ECCCF225A45 for ; Thu, 19 Dec 2024 13:27:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734614877; cv=none; b=g3w8dPtNJ3lny+5H3ooWHkRS3DivhT1GX/1YBlv+TsbkTG+trWZhqBN8adEnFlrSKlb3QpXvTtTewbSTlVYFJsCDSmJpypEkVJFqy8rnFLnVJTbJWwJzc9H8/1oW3N0x7xY9Z71aT+d7nc+k+6m0aEcLYHTPci7S/tYiKSYoNTw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734614877; c=relaxed/simple; bh=LjXZy3D4E8cHf1e2AiavsRTAhxHXUIm0znoHAXz8a9s=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=re7I8G2m47xZbhbX9N/vA8S0LOaI8wJ+snHrCbrZsohgVU2oTw/4Y9ILbTQmDgpjKAojRYPpZZNVJDd/i4R+p39ZXeVbVb/2N9FUBPP0gKxhnIGpTXyWl7W1rYB1VSB5Ib6sKkcYKiNWuX39+tbaH7cocNZ3G/kXjCkD9mTRTp0= 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=bhNrcUrw; arc=none smtp.client-ip=192.198.163.10 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="bhNrcUrw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1734614876; x=1766150876; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=LjXZy3D4E8cHf1e2AiavsRTAhxHXUIm0znoHAXz8a9s=; b=bhNrcUrw+3rfdJ0KshOyO6Jf9q8hNnBNGXCTDB2UZdmrSMdtgaHNR0XK 3iGYM7Dimtal+3OEopj4rGBqMtXjBHKVYMkfR6ufx+GKDTHUMb/aFRWFd VOs4HhExNUyupivHjqgKIMbZIim8Jcx3UrP7UDb+HufKL7le0yy8sWYB9 z56wwkDOPnVbiM10aING2p6mSN9O6z5WpWNy4Npp5VeGbgFpds2msWoJS NZO41DfEbNLq0JQmSiMy30uOeUQhjNae+TsruMC5gsrso3TjLvk67BsQC rMKpQra6AHVG57fD3KU3+vU9YJ1zzk53xzmBW1b/lFmkU15lRi7v4PSrP g==; X-CSE-ConnectionGUID: OdeYAZmjQZWrGR/90ElQhg== X-CSE-MsgGUID: EZv3yAaTSNeTEqBo3HA9NQ== X-IronPort-AV: E=McAfee;i="6700,10204,11290"; a="46542298" X-IronPort-AV: E=Sophos;i="6.12,247,1728975600"; d="scan'208";a="46542298" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Dec 2024 05:27:51 -0800 X-CSE-ConnectionGUID: LJ1r+vjGREeJI1Y+baYsTw== X-CSE-MsgGUID: ZOSBcfj0Sl2AxCPCHOgzOw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,247,1728975600"; d="scan'208";a="103177329" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orviesa004.jf.intel.com with ESMTP; 19 Dec 2024 05:27:50 -0800 From: Yi Liu To: joro@8bytes.org, jgg@nvidia.com, kevin.tian@intel.com, baolu.lu@linux.intel.com Cc: eric.auger@redhat.com, nicolinc@nvidia.com, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, iommu@lists.linux.dev, vasant.hegde@amd.com, will@kernel.org Subject: [PATCH v6 09/14] iommu/vt-d: Add IOMMU_HWPT_ALLOC_PASID support Date: Thu, 19 Dec 2024 05:27:41 -0800 Message-Id: <20241219132746.16193-10-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241219132746.16193-1-yi.l.liu@intel.com> References: <20241219132746.16193-1-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. 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 cd5e339fd5bb..0a622a89d876 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -3347,7 +3347,8 @@ 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