diff options
| -rw-r--r-- | drivers/iommu/intel/pasid.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/iommu/intel/pasid.c b/drivers/iommu/intel/pasid.c index 3e2255057079..3f6d78180d79 100644 --- a/drivers/iommu/intel/pasid.c +++ b/drivers/iommu/intel/pasid.c @@ -1102,6 +1102,14 @@ static void __context_flush_dev_iotlb(struct device_domain_info *info) if (!info->ats_enabled) return; + /* + * Skip dev-IOTLB flush for inaccessible PCIe devices to prevent the + * Intel IOMMU from waiting indefinitely for an ATS invalidation that + * cannot complete. + */ + if (!pci_device_is_present(to_pci_dev(info->dev))) + return; + qi_flush_dev_iotlb(info->iommu, PCI_DEVID(info->bus, info->devfn), info->pfsid, info->ats_qdep, 0, MAX_AGAW_PFN_WIDTH); |