From: Lu Baolu <baolu.lu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>,
David Woodhouse <dwmw2@infradead.org>,
Alex Williamson <alex.williamson@redhat.com>,
Kirti Wankhede <kwankhede@nvidia.com>
Cc: ashok.raj@intel.com, sanjay.k.kumar@intel.com,
jacob.jun.pan@intel.com, kevin.tian@intel.com,
yi.l.liu@intel.com, yi.y.sun@intel.com, peterx@redhat.com,
iommu@lists.linux-foundation.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, Lu Baolu <baolu.lu@linux.intel.com>,
Jacob Pan <jacob.jun.pan@linux.intel.com>
Subject: [RFC PATCH 07/10] iommu/vt-d: Add set_bus iommu ops
Date: Sun, 22 Jul 2018 14:09:30 +0800 [thread overview]
Message-ID: <1532239773-15325-8-git-send-email-baolu.lu@linux.intel.com> (raw)
In-Reply-To: <1532239773-15325-1-git-send-email-baolu.lu@linux.intel.com>
This specifies the Intel IOMMU specific set_bus operation.
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Liu Yi L <yi.l.liu@intel.com>
Signed-off-by: Sanjay Kumar <sanjay.k.kumar@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
drivers/iommu/intel-iommu.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index b6e9ea8..de36292 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -5346,6 +5346,23 @@ static struct iommu_group *intel_iommu_device_group(struct device *dev)
return ERR_PTR(-EINVAL);
}
+static int intel_iommu_set_bus(struct bus_type *bus, struct iommu_device *idev)
+{
+ struct intel_iommu *iommu;
+
+ iommu = container_of(idev, struct intel_iommu, iommu);
+ if (strcmp(bus->name, "mdev"))
+ return -EINVAL;
+
+ if (!sm_supported(iommu))
+ return -ENODEV;
+
+ bus_set_iommu(bus, &intel_iommu_ops);
+ bus_register_notifier(bus, &device_nb);
+
+ return 0;
+}
+
#ifdef CONFIG_INTEL_IOMMU_SVM
int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct intel_svm_dev *sdev)
{
@@ -5440,6 +5457,7 @@ const struct iommu_ops intel_iommu_ops = {
.remove_device = intel_iommu_remove_device,
.get_resv_regions = intel_iommu_get_resv_regions,
.put_resv_regions = intel_iommu_put_resv_regions,
+ .set_bus = intel_iommu_set_bus,
.device_group = intel_iommu_device_group,
.pgsize_bitmap = INTEL_IOMMU_PGSIZES,
};
--
2.7.4
next prev parent reply other threads:[~2018-07-22 6:11 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-22 6:09 [RFC PATCH 00/10] vfio/mdev: IOMMU aware mediated device Lu Baolu
2018-07-22 6:09 ` [RFC PATCH 01/10] iommu/vt-d: Get iommu device for a " Lu Baolu
2018-07-23 4:44 ` Liu, Yi L
2018-07-24 2:06 ` Lu Baolu
2018-07-24 18:50 ` Alex Williamson
2018-07-25 1:18 ` Lu Baolu
2018-07-22 6:09 ` [RFC PATCH 02/10] iommu/vt-d: Alloc domain " Lu Baolu
2018-07-23 4:44 ` Liu, Yi L
2018-07-24 2:09 ` Lu Baolu
2018-07-22 6:09 ` [RFC PATCH 03/10] iommu/vt-d: Allocate groups for mediated devices Lu Baolu
2018-07-23 4:44 ` Liu, Yi L
2018-07-24 2:22 ` Lu Baolu
2018-07-24 11:30 ` Jean-Philippe Brucker
2018-07-24 19:51 ` Alex Williamson
2018-07-25 2:06 ` Lu Baolu
2018-07-25 2:16 ` Tian, Kevin
2018-07-25 2:35 ` Liu, Yi L
[not found] ` <AADFC41AFE54684AB9EE6CBC0274A5D19127FB9E@SHSMSX101.ccr.corp.intel.com>
2018-07-25 6:19 ` Tian, Kevin
2018-07-25 19:19 ` Jean-Philippe Brucker
2018-07-26 3:03 ` Tian, Kevin
2018-07-26 15:09 ` Jean-Philippe Brucker
[not found] ` <AADFC41AFE54684AB9EE6CBC0274A5D1912826AE@SHSMSX101.ccr.corp.intel.com>
2018-07-26 3:28 ` Tian, Kevin
2018-07-26 15:09 ` Jean-Philippe Brucker
2018-07-22 6:09 ` [RFC PATCH 04/10] iommu/vt-d: Get pasid table for a mediated device Lu Baolu
2018-07-22 6:09 ` [RFC PATCH 05/10] iommu/vt-d: Setup DMA remapping for mediated devices Lu Baolu
2018-07-23 4:44 ` Liu, Yi L
2018-07-24 2:29 ` Lu Baolu
2018-07-22 6:09 ` [RFC PATCH 06/10] iommu: Add iommu_set_bus API interface Lu Baolu
2018-07-22 6:09 ` Lu Baolu [this message]
2018-07-22 6:09 ` [RFC PATCH 08/10] vfio/mdev: Set iommu ops for mdev bus Lu Baolu
2018-07-22 6:09 ` [RFC PATCH 09/10] vfio/mdev: Add mediated device domain type Lu Baolu
2018-07-22 6:09 ` [RFC PATCH 10/10] vfio/type1: Allocate domain for mediated device Lu Baolu
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