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From: Lu Baolu <baolu.lu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>,
	Alex Williamson <alex.williamson@redhat.com>
Cc: Jean-Philippe Brucker <jean-philippe@linaro.org>,
	Kevin Tian <kevin.tian@intel.com>,
	Dave Jiang <dave.jiang@intel.com>,
	Ashok Raj <ashok.raj@intel.com>,
	kvm@vger.kernel.org, Cornelia Huck <cohuck@redhat.com>,
	linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
	Robin Murphy <robin.murphy@arm.com>
Subject: [PATCH v4 4/5] vfio/type1: Use iommu_aux_at(de)tach_group() APIs
Date: Tue,  1 Sep 2020 11:34:21 +0800	[thread overview]
Message-ID: <20200901033422.22249-5-baolu.lu@linux.intel.com> (raw)
In-Reply-To: <20200901033422.22249-1-baolu.lu@linux.intel.com>

Replace iommu_aux_at(de)tach_device() with iommu_at(de)tach_subdev_group().

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
 drivers/vfio/vfio_iommu_type1.c | 43 +++++----------------------------
 1 file changed, 6 insertions(+), 37 deletions(-)

diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 5e556ac9102a..8d5eb7ce0986 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -1627,45 +1627,13 @@ static struct device *vfio_mdev_get_iommu_device(struct device *dev)
 	return NULL;
 }
 
-static int vfio_mdev_attach_domain(struct device *dev, void *data)
-{
-	struct iommu_domain *domain = data;
-	struct device *iommu_device;
-
-	iommu_device = vfio_mdev_get_iommu_device(dev);
-	if (iommu_device) {
-		if (iommu_dev_feature_enabled(iommu_device, IOMMU_DEV_FEAT_AUX))
-			return iommu_aux_attach_device(domain, iommu_device);
-		else
-			return iommu_attach_device(domain, iommu_device);
-	}
-
-	return -EINVAL;
-}
-
-static int vfio_mdev_detach_domain(struct device *dev, void *data)
-{
-	struct iommu_domain *domain = data;
-	struct device *iommu_device;
-
-	iommu_device = vfio_mdev_get_iommu_device(dev);
-	if (iommu_device) {
-		if (iommu_dev_feature_enabled(iommu_device, IOMMU_DEV_FEAT_AUX))
-			iommu_aux_detach_device(domain, iommu_device);
-		else
-			iommu_detach_device(domain, iommu_device);
-	}
-
-	return 0;
-}
-
 static int vfio_iommu_attach_group(struct vfio_domain *domain,
 				   struct vfio_group *group)
 {
 	if (group->mdev_group)
-		return iommu_group_for_each_dev(group->iommu_group,
-						domain->domain,
-						vfio_mdev_attach_domain);
+		return iommu_attach_subdev_group(domain->domain,
+						 group->iommu_group,
+						 vfio_mdev_get_iommu_device);
 	else
 		return iommu_attach_group(domain->domain, group->iommu_group);
 }
@@ -1674,8 +1642,9 @@ static void vfio_iommu_detach_group(struct vfio_domain *domain,
 				    struct vfio_group *group)
 {
 	if (group->mdev_group)
-		iommu_group_for_each_dev(group->iommu_group, domain->domain,
-					 vfio_mdev_detach_domain);
+		iommu_detach_subdev_group(domain->domain,
+					  group->iommu_group,
+					  vfio_mdev_get_iommu_device);
 	else
 		iommu_detach_group(domain->domain, group->iommu_group);
 }
-- 
2.17.1

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  parent reply	other threads:[~2020-09-01  3:40 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-01  3:34 [PATCH v4 0/5] iommu aux-domain APIs extensions Lu Baolu
2020-09-01  3:34 ` [PATCH v4 1/5] iommu: Add optional subdev in aux_at(de)tach ops Lu Baolu
2020-09-10 22:05   ` Alex Williamson
2020-09-14  2:48     ` Lu Baolu
2020-09-01  3:34 ` [PATCH v4 2/5] iommu: Add iommu_at(de)tach_subdev_group() Lu Baolu
2020-09-10 22:05   ` Alex Williamson
2020-09-14  3:02     ` Lu Baolu
2020-09-01  3:34 ` [PATCH v4 3/5] iommu: Add iommu_aux_get_domain_for_dev() Lu Baolu
2020-09-01  3:34 ` Lu Baolu [this message]
2020-09-01  3:34 ` [PATCH v4 5/5] iommu/vt-d: Add is_aux_domain support Lu Baolu
2020-09-10 22:05   ` Alex Williamson
2020-09-14  5:01     ` Lu Baolu

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