To support mapping ISA region via iommu_group_create_direct_mappings,
make sure its exposed by iommu_get_resv_regions.
Signed-off-by: James Sewart <jamessewart@arista.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
}
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);