iommu/amd - Record more information about unknown events

When an unknown type event occurs, the default information written to
the syslog should dump raw event data. This could provide insight into
the event that occurred.

Signed-off-by: Gary R Hook <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 7d5eb004091d1d64f6956825e9dd14bf975a8b68..6af7ae6eac5e611304ad9a16f64cbb3a064c2dba 100644 (file)
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -616,7 +616,9 @@ retry:
                       address, flags);
                break;
        default:
-               printk(KERN_ERR "UNKNOWN type=0x%02x]\n", type);
+               printk(KERN_ERR "UNKNOWN type=0x%02x event[0]=0x%08x "
+                      "event[1]=0x%08x event[2]=0x%08x event[3]=0x%08x\n",
+                      type, event[0], event[1], event[2], event[3]);
        }
 
        memset(__evt, 0, 4 * sizeof(u32));