From: Yi Liu <yi.l.liu@intel.com>
To: joro@8bytes.org, jgg@nvidia.com, kevin.tian@intel.com,
baolu.lu@linux.intel.com
Cc: alex.williamson@redhat.com, robin.murphy@arm.com,
eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org,
chao.p.peng@linux.intel.com, yi.l.liu@intel.com,
iommu@lists.linux.dev, zhenzhong.duan@intel.com,
jacob.jun.pan@intel.com
Subject: [PATCH v2 06/12] iommufd/selftest: Add set_dev_pasid and remove_dev_pasid in mock iommu
Date: Fri, 12 Apr 2024 01:15:10 -0700 [thread overview]
Message-ID: <20240412081516.31168-7-yi.l.liu@intel.com> (raw)
In-Reply-To: <20240412081516.31168-1-yi.l.liu@intel.com>
The two callbacks are needed to make pasid_attach/detach path complete for
mock device. A nop is enough for set_dev_pasid, a domain type check in the
remove_dev_pasid is also helpful.
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
---
drivers/iommu/iommufd/selftest.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selftest.c
index 7a2199470f31..45e1328f0f5d 100644
--- a/drivers/iommu/iommufd/selftest.c
+++ b/drivers/iommu/iommufd/selftest.c
@@ -511,9 +511,35 @@ static struct iommu_device *mock_probe_device(struct device *dev)
{
if (dev->bus != &iommufd_mock_bus_type.bus)
return ERR_PTR(-ENODEV);
+
+ dev->iommu->max_pasids = 1 << 20;//20 bits
return &mock_iommu_device;
}
+static void mock_iommu_remove_dev_pasid(struct device *dev, ioasid_t pasid,
+ struct iommu_domain *domain)
+{
+ /* Domain type specific cleanup: */
+ if (domain) {
+ switch (domain->type) {
+ case IOMMU_DOMAIN_NESTED:
+ case IOMMU_DOMAIN_UNMANAGED:
+ break;
+ default:
+ /* should never reach here */
+ WARN_ON(1);
+ break;
+ }
+ }
+}
+
+static int mock_domain_set_dev_pasid_nop(struct iommu_domain *domain,
+ struct device *dev, ioasid_t pasid,
+ struct iommu_domain *old)
+{
+ return 0;
+}
+
static const struct iommu_ops mock_ops = {
/*
* IOMMU_DOMAIN_BLOCKED cannot be returned from def_domain_type()
@@ -529,6 +555,7 @@ static const struct iommu_ops mock_ops = {
.capable = mock_domain_capable,
.device_group = generic_device_group,
.probe_device = mock_probe_device,
+ .remove_dev_pasid = mock_iommu_remove_dev_pasid,
.default_domain_ops =
&(struct iommu_domain_ops){
.free = mock_domain_free,
@@ -536,6 +563,7 @@ static const struct iommu_ops mock_ops = {
.map_pages = mock_domain_map_pages,
.unmap_pages = mock_domain_unmap_pages,
.iova_to_phys = mock_domain_iova_to_phys,
+ .set_dev_pasid = mock_domain_set_dev_pasid_nop,
},
};
@@ -600,6 +628,7 @@ static struct iommu_domain_ops domain_nested_ops = {
.free = mock_domain_free_nested,
.attach_dev = mock_domain_nop_attach,
.cache_invalidate_user = mock_domain_cache_invalidate_user,
+ .set_dev_pasid = mock_domain_set_dev_pasid_nop,
};
static inline struct iommufd_hw_pagetable *
@@ -1491,6 +1520,8 @@ int __init iommufd_test_init(void)
&iommufd_mock_bus_type.nb);
if (rc)
goto err_sysfs;
+
+ mock_iommu_device.max_pasids = (1 << 20);//20 bits
return 0;
err_sysfs:
--
2.34.1
next prev parent reply other threads:[~2024-04-12 8:15 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-12 8:15 [PATCH v2 00/12] iommufd support pasid attach/replace Yi Liu
2024-04-12 8:15 ` [PATCH v2 01/12] iommu: Pass old domain to set_dev_pasid op Yi Liu
2024-04-15 5:32 ` Baolu Lu
2024-04-15 11:54 ` Jason Gunthorpe
2024-04-16 2:07 ` Baolu Lu
2024-04-16 17:47 ` Jason Gunthorpe
2024-04-12 8:15 ` [PATCH v2 02/12] iommu: Introduce a replace API for device pasid Yi Liu
2024-04-16 3:01 ` Duan, Zhenzhong
2024-04-16 9:18 ` Yi Liu
2024-04-17 8:44 ` Tian, Kevin
2024-04-17 12:17 ` Jason Gunthorpe
2024-04-18 0:08 ` Tian, Kevin
2024-04-29 13:55 ` Jason Gunthorpe
2024-04-30 5:00 ` Yi Liu
2024-04-30 12:26 ` Jason Gunthorpe
2024-04-12 8:15 ` [PATCH v2 03/12] iommufd: replace attach_fn with a structure Yi Liu
2024-04-12 8:15 ` [PATCH v2 04/12] iommufd: Support attach/replace hwpt per pasid Yi Liu
2024-04-29 13:56 ` Jason Gunthorpe
2024-04-12 8:15 ` [PATCH v2 05/12] iommu: Allow iommu driver to populate the max_pasids Yi Liu
2024-04-15 5:41 ` Baolu Lu
2024-04-17 8:49 ` Tian, Kevin
2024-04-20 5:45 ` Yi Liu
2024-04-22 11:52 ` Jason Gunthorpe
2024-04-12 8:15 ` Yi Liu [this message]
2024-04-12 8:15 ` [PATCH v2 07/12] iommufd/selftest: Add a helper to get test device Yi Liu
2024-04-12 8:15 ` [PATCH v2 08/12] iommufd/selftest: Add test ops to test pasid attach/detach Yi Liu
2024-04-12 8:15 ` [PATCH v2 09/12] iommufd/selftest: Add coverage for iommufd " Yi Liu
2024-04-12 8:15 ` [PATCH v2 10/12] iommu/vt-d: Return if no dev_pasid is found in domain Yi Liu
2024-04-15 6:04 ` Baolu Lu
2024-04-16 9:21 ` Yi Liu
2024-04-17 2:30 ` Baolu Lu
2024-04-17 3:48 ` Yi Liu
2024-04-17 9:03 ` Tian, Kevin
2024-04-17 9:36 ` Yi Liu
2024-04-12 8:15 ` [PATCH v2 11/12] iommu/vt-d: Make intel_iommu_set_dev_pasid() to handle domain replacement Yi Liu
2024-04-17 9:19 ` Tian, Kevin
2024-04-17 9:35 ` Yi Liu
2024-04-17 12:19 ` Jason Gunthorpe
2024-04-12 8:15 ` [PATCH v2 12/12] iommu/vt-d: Add set_dev_pasid callback for nested domain Yi Liu
2024-04-17 9:25 ` Tian, Kevin
2024-04-30 9:19 ` Yi Liu
2024-05-06 7:42 ` Baolu Lu
2024-05-06 13:36 ` Jason Gunthorpe
2024-05-07 2:28 ` Yi Liu
2024-05-07 15:18 ` Jason Gunthorpe
2024-05-08 6:10 ` Yi Liu
2024-05-08 12:25 ` Jason Gunthorpe
2024-05-08 13:26 ` Yi Liu
2024-05-08 14:11 ` Jason Gunthorpe
2024-05-09 14:22 ` Liu, Yi L
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