[PATCH] iommu/amd - Record more information about unknown events

[Gary R Hook]

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 <gary.h...@amd.com>
---
 drivers/iommu/amd_iommu.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 51f8215877f5..cb78933ef53f 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -617,7 +617,9 @@ static void iommu_print_event(struct amd_iommu *iommu, void 
*__evt)
                       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));