From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 1A69726659C for ; Thu, 13 Mar 2025 12:35:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741869359; cv=none; b=OXMZp2VA+i+gKO7/m5HugM8WxgKmk4YiUA8BGiSmPxFawdeV+2If7Ba2ug2onu+8FAkv6+MvQSbpGiAvzIgJpIT7Fmw7qo90YjDS8N20QC5IQMJFYRnRPP6wsHatG9XXSScoo6tsm3X16g6P8mwosBtIurAr643xEV080M2I58s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741869359; c=relaxed/simple; bh=5qqe5wfjVMCe8ki0ELgpVyKjy/R1qRLhW9Ip/y7Rh/E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=liWtjZyUemhDPXav4sEGWfuU2yYER4+iiiU9MIc3jBZKVQ09w4LaoX5lKyU+Ab51uZ7QK8xxoE4gWiWPNXhIj397n1Usr7PWrfGtFWJ+K52I0ihsRY8fupMC+jdyuf0My6IyfpU5H91dEeIRjkcdDHqxnIXFgjAYw2jhJYeDc5w= 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=OgViRMYw; arc=none smtp.client-ip=192.198.163.17 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="OgViRMYw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1741869357; x=1773405357; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=5qqe5wfjVMCe8ki0ELgpVyKjy/R1qRLhW9Ip/y7Rh/E=; b=OgViRMYwAR4Arh0CvLIyMGU+ZispbgLHsncyVuWJFPN4Vo2sTegDvK1A 77sT6Ct4BvvJyVS4SoVNIOQmVwpGVtLfetzQJ2ye07c5lNZN/+LyDqnwe y0p/gifope1uF2UcpDa9ij+SC/7lIhxhCyQnHAK1a8EVVEVY0abZyF6iq dTM0o60y9NHFlXsxQW0tvKknHOVGjHY0irJJ+ozpAqte7d0KkcbP6aLLu 1sTLkEBu8yd+e+/3+l7UkjI76ypmwUS98VGsF9iTuysTJ/lMolO4kYf02 h4uMRWsTqqw6kX9LVxfoieqVds2/1WI3nqEhGgrTE3K0wr6gVkOU6SfXu g==; X-CSE-ConnectionGUID: IIqNedcISeGcv9Dn7WqE4A== X-CSE-MsgGUID: Z0BC9uxZS+yWMIXp1s24uQ== X-IronPort-AV: E=McAfee;i="6700,10204,11372"; a="42863984" X-IronPort-AV: E=Sophos;i="6.14,244,1736841600"; d="scan'208";a="42863984" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Mar 2025 05:35:40 -0700 X-CSE-ConnectionGUID: E/ID3XP6QbylX35IQLlOIQ== X-CSE-MsgGUID: 2YWc18M/QoSukqyRikfNOQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.14,244,1736841600"; d="scan'208";a="126005546" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by orviesa004.jf.intel.com with ESMTP; 13 Mar 2025 05:35:41 -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 v9 16/21] iommu/vt-d: Add IOMMU_HWPT_ALLOC_PASID support Date: Thu, 13 Mar 2025 05:35:27 -0700 Message-Id: <20250313123532.103522-17-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250313123532.103522-1-yi.l.liu@intel.com> References: <20250313123532.103522-1-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