diff options
Diffstat (limited to 'drivers/iommu/intel/iommu.c')
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index e78773d46d7d..c45d4946f92d 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -5343,6 +5343,7 @@ static int intel_iommu_enable_sva(struct device *dev) { struct device_domain_info *info = get_domain_info(dev); struct intel_iommu *iommu = info->iommu; + int ret; if (!info || !iommu || dmar_disabled) return -EINVAL; @@ -5356,15 +5357,24 @@ static int intel_iommu_enable_sva(struct device *dev) if (!info->pasid_enabled || !info->pri_enabled || !info->ats_enabled) return -EINVAL; - return iopf_queue_add_device(iommu->iopf_queue, dev); + ret = iopf_queue_add_device(iommu->iopf_queue, dev); + if (!ret) + ret = iommu_register_device_fault_handler(dev, iommu_queue_iopf, dev); + + return ret; } static int intel_iommu_disable_sva(struct device *dev) { struct device_domain_info *info = get_domain_info(dev); struct intel_iommu *iommu = info->iommu; + int ret; + + ret = iommu_unregister_device_fault_handler(dev); + if (!ret) + ret = iopf_queue_remove_device(iommu->iopf_queue, dev); - return iopf_queue_remove_device(iommu->iopf_queue, dev); + return ret; } /* |