diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 00f46021d690..c30b73d41bf2 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4567,16 +4567,19 @@ static int device_notifier(struct notifier_block *nb, if (iommu_dummy(dev)) return 0; - if (action != BUS_NOTIFY_REMOVED_DEVICE) - return 0; - - domain = find_domain(dev); - if (!domain) - return 0; + if (action == BUS_NOTIFY_REMOVED_DEVICE) { + domain = find_domain(dev); + if (!domain) + return 0; - dmar_remove_one_dev_info(dev); - if (!domain_type_is_vm_or_si(domain) && list_empty(&domain->devices)) - domain_exit(domain); + dmar_remove_one_dev_info(dev); + if (!domain_type_is_vm_or_si(domain) && + list_empty(&domain->devices)) + domain_exit(domain); + } else if (action == BUS_NOTIFY_ADD_DEVICE) { + if (iommu_should_identity_map(dev, 1)) + domain_add_dev_info(si_domain, dev); + } return 0; } |