diff options
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 3995afc59c28..bc7cbe0a6ac6 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -5479,6 +5479,19 @@ static void intel_iommu_get_resv_regions(struct device *device, } rcu_read_unlock(); +#ifdef CONFIG_INTEL_IOMMU_FLOPPY_WA + if (dev_is_pci(device)) { + struct pci_dev *pdev = to_pci_dev(device); + + if ((pdev->class >> 8) == PCI_CLASS_BRIDGE_ISA) { + reg = iommu_alloc_resv_region(0, 1UL << 24, 0, + IOMMU_RESV_DIRECT); + if (reg) + list_add_tail(®->list, head); + } + } +#endif /* CONFIG_INTEL_IOMMU_FLOPPY_WA */ + reg = iommu_alloc_resv_region(IOAPIC_RANGE_START, IOAPIC_RANGE_END - IOAPIC_RANGE_START + 1, 0, IOMMU_RESV_MSI); |