From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) (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 DB6FC620 for ; Thu, 11 May 2023 14:51:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1683816682; x=1715352682; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Vbt/gRKp77bRwjDyaiyibCBpUzoPaDniGF7JiqNVd8w=; b=XYO5VV3UUjkYQFgc0demqVnf0kYClAIt8WFW6+ko9fDck06qycfUMH1E 27CNOO+DDOXsHqhSFBDUSySjiFNT8U9h9JAKVs4a789LbxqRX/b48J2sn VtHLxAUmLVW9M8oEdzMvdVL2cQziobvA7+Sbk/Gq6WVgLiJwMpNa3VOQJ iUjnrCwslddrByYC+IUFhV9ST6OT04UlzAmszwfaasdysaFzfWkaF9vxh 8f31GGCwGEJQ5c6wRcrfLC5Act1SF9VxW17Bf/rou/p/RTZ+YX4aac7A7 nzjL6utvM2d6xtAHyWNSzkvZgkPQTOLnLJZx7NOCgVEoqu7S/FuotlKVj A==; X-IronPort-AV: E=McAfee;i="6600,9927,10707"; a="335025513" X-IronPort-AV: E=Sophos;i="5.99,266,1677571200"; d="scan'208";a="335025513" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2023 07:51:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10707"; a="769355189" X-IronPort-AV: E=Sophos;i="5.99,266,1677571200"; d="scan'208";a="769355189" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by fmsmga004.fm.intel.com with ESMTP; 11 May 2023 07:51:19 -0700 From: Yi Liu To: joro@8bytes.org, alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com, robin.murphy@arm.com, baolu.lu@linux.intel.com Cc: cohuck@redhat.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, yi.y.sun@linux.intel.com, peterx@redhat.com, jasowang@redhat.com, shameerali.kolothum.thodi@huawei.com, lulu@redhat.com, suravee.suthikulpanit@amd.com, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, zhenzhong.duan@intel.com Subject: [PATCH v3 08/10] iommu/vt-d: Add nested domain allocation Date: Thu, 11 May 2023 07:51:08 -0700 Message-Id: <20230511145110.27707-9-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230511145110.27707-1-yi.l.liu@intel.com> References: <20230511145110.27707-1-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 From: Lu Baolu This adds the support for IOMMU_HWPT_TYPE_VTD_S1 type. Signed-off-by: Lu Baolu Signed-off-by: Yi Liu --- drivers/iommu/intel/iommu.c | 19 +++++++++++++++++++ include/linux/iommu.h | 1 + 2 files changed, 20 insertions(+) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 5f27cee4656a..51612da4a1ea 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -4092,6 +4092,16 @@ static struct iommu_domain *intel_iommu_domain_alloc(unsigned type) return NULL; } +static struct iommu_domain * +intel_iommu_domain_alloc_user(struct device *dev, struct iommu_domain *parent, + const union iommu_domain_user_data *user_data) +{ + if (parent) + return intel_nested_domain_alloc(parent, user_data); + else + return iommu_domain_alloc(dev->bus); +} + static void intel_iommu_domain_free(struct iommu_domain *domain) { if (domain != &si_domain->domain && domain != &blocking_domain) @@ -4736,9 +4746,18 @@ static void intel_iommu_remove_dev_pasid(struct device *dev, ioasid_t pasid) intel_pasid_tear_down_entry(iommu, dev, pasid, false); } +static int intel_iommu_domain_user_data_len(u32 hwpt_type) +{ + if (hwpt_type != IOMMU_HWPT_TYPE_VTD_S1) + return -EOPNOTSUPP; + return sizeof(struct iommu_hwpt_intel_vtd); +}; + const struct iommu_ops intel_iommu_ops = { .capable = intel_iommu_capable, .domain_alloc = intel_iommu_domain_alloc, + .domain_alloc_user = intel_iommu_domain_alloc_user, + .domain_alloc_user_data_len = intel_iommu_domain_user_data_len, .probe_device = intel_iommu_probe_device, .probe_finalize = intel_iommu_probe_finalize, .release_device = intel_iommu_release_device, diff --git a/include/linux/iommu.h b/include/linux/iommu.h index c696d8e7f43b..32324f0756de 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -234,6 +234,7 @@ union iommu_domain_user_data { #ifdef CONFIG_IOMMUFD_TEST __u64 test[2]; #endif + struct iommu_hwpt_intel_vtd vtd; }; /** -- 2.34.1