[PATCH for-4.20? 3/3] AMD/IOMMU: log IVHD contents

[Jan Beulich]

Despite all the verbosity with "iommu=debug", information on the IOMMUs
themselves was missing.

Signed-off-by: Jan Beulich <jbeul...@suse.com>

--- a/xen/drivers/passthrough/amd/iommu_acpi.c
+++ b/xen/drivers/passthrough/amd/iommu_acpi.c
@@ -911,6 +911,11 @@ static int __init parse_ivhd_block(const
         return -ENODEV;
     }
 
+    AMD_IOMMU_DEBUG("IVHD: IOMMU @ %#lx cap @ %#x seg 0x%04x info %#x attr 
%#x\n",
+                    ivhd_block->base_address, ivhd_block->capability_offset,
+                    ivhd_block->pci_segment_group, ivhd_block->info,
+                    ivhd_block->iommu_attr);
+
     iommu = find_iommu_from_bdf_cap(ivhd_block->pci_segment_group,
                                     ivhd_block->header.device_id,
                                     ivhd_block->capability_offset);