diff options
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 341573821864..e9c6233045eb 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2788,6 +2788,18 @@ static int amd_iommu_domain_has_cap(struct iommu_domain *domain, return 0; } +static int amd_iommu_device_group(struct device *dev, unsigned int *groupid) +{ + struct iommu_dev_data *dev_data = dev->archdata.iommu; + + if (!dev_data) + return -ENODEV; + + *groupid = amd_iommu_alias_table[dev_data->devid]; + + return 0; +} + static struct iommu_ops amd_iommu_ops = { .domain_init = amd_iommu_domain_init, .domain_destroy = amd_iommu_domain_destroy, @@ -2798,6 +2810,7 @@ static struct iommu_ops amd_iommu_ops = { .iova_to_phys = amd_iommu_iova_to_phys, .domain_has_cap = amd_iommu_domain_has_cap, .pgsize_bitmap = AMD_IOMMU_PGSIZES, + .device_group = amd_iommu_device_group, }; /***************************************************************************** |