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

Signed-off-by: Jan Beulich <jbeulich@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);

On 30/01/2025 11:13 am, Jan Beulich wrote:
> Despite all the verbosity with "iommu=debug", information on the IOMMUs
> themselves was missing.
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>

On 2025-01-30 06:13, Jan Beulich wrote:
> Despite all the verbosity with "iommu=debug", information on the IOMMUs
> themselves was missing.
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Reviewed-by: Jason Andryuk <jason.andryuk@amd.com>
Tested-by: Jason Andryuk <jason.andryuk@amd.com>

Thanks,
Jason