intel-iommu: Print out iommu seq_id

more info on system with more than one IOMMU

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 9ce79b1bae83..da40f0789739 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -1150,7 +1150,8 @@ static int iommu_init_domains(struct intel_iommu *iommu)
         unsigned long nlongs;
 
         ndomains = cap_ndoms(iommu->cap);
-        pr_debug("Number of Domains supportd <%ld>\n", ndomains);
+        pr_debug("IOMMU %d: Number of Domains supportd <%ld>\n", iommu->seq_id,
+                        ndomains);
         nlongs = BITS_TO_LONGS(ndomains);
 
         spin_lock_init(&iommu->lock);
@@ -2319,14 +2320,16 @@ int __init init_dmars(void)
                          */
                         iommu->flush.flush_context = __iommu_flush_context;
                         iommu->flush.flush_iotlb = __iommu_flush_iotlb;
-                        printk(KERN_INFO "IOMMU 0x%Lx: using Register based "
+                        printk(KERN_INFO "IOMMU %d 0x%Lx: using Register based "
                                "invalidation\n",
+                                iommu->seq_id,
                                (unsigned long long)drhd->reg_base_addr);
                 } else {
                         iommu->flush.flush_context = qi_flush_context;
                         iommu->flush.flush_iotlb = qi_flush_iotlb;
-                        printk(KERN_INFO "IOMMU 0x%Lx: using Queued "
+                        printk(KERN_INFO "IOMMU %d 0x%Lx: using Queued "
                                "invalidation\n",
+                                iommu->seq_id,
                                (unsigned long long)drhd->reg_base_addr);
                 }
         }