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| author |   Joerg Roedel <jroedel@suse.de> | 2020-04-29 15:36:41 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-05-05 14:36:12 +0200 |
| commit | bdf4a7c4c77dcb91bd64b53b70d9faf3184e88d8 (patch) | |
| tree | bd59348bb9c97f61637169b7f116cedabd98e5aa /drivers/iommu/amd_iommu.c | |
| parent | iommu: Add def_domain_type() callback in iommu_ops (diff) | |
| download | linux-dev-bdf4a7c4c77dcb91bd64b53b70d9faf3184e88d8.tar.xz linux-dev-bdf4a7c4c77dcb91bd64b53b70d9faf3184e88d8.zip | |
iommu/amd: Implement iommu_ops->def_domain_type call-back
Implement the new def_domain_type call-back for the AMD IOMMU driver.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20200429133712.31431-4-joro@8bytes.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 20cce366e951..73b4f84cf449 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2661,6 +2661,20 @@ static void amd_iommu_iotlb_sync(struct iommu_domain *domain, amd_iommu_flush_iotlb_all(domain); } +static int amd_iommu_def_domain_type(struct device *dev) +{ + struct iommu_dev_data *dev_data; + + dev_data = get_dev_data(dev); + if (!dev_data) + return 0; + + if (dev_data->iommu_v2) + return IOMMU_DOMAIN_IDENTITY; + + return 0; +} + const struct iommu_ops amd_iommu_ops = { .capable = amd_iommu_capable, .domain_alloc = amd_iommu_domain_alloc, @@ -2680,6 +2694,7 @@ const struct iommu_ops amd_iommu_ops = { .pgsize_bitmap = AMD_IOMMU_PGSIZES, .flush_iotlb_all = amd_iommu_flush_iotlb_all, .iotlb_sync = amd_iommu_iotlb_sync, + .def_domain_type = amd_iommu_def_domain_type, }; /***************************************************************************** |