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Diffstat (limited to 'hw/i386/intel_iommu.c')
-rw-r--r--hw/i386/intel_iommu.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 16d2885fcc..90cd4e5044 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -2744,7 +2744,7 @@ static bool vtd_process_inv_desc(IntelIOMMUState *s)
         return false;
     }
 
-    desc_type = inv_desc.lo & VTD_INV_DESC_TYPE;
+    desc_type = VTD_INV_DESC_TYPE(inv_desc.lo);
     /* FIXME: should update at first or at last? */
     s->iq_last_desc_type = desc_type;
 
@@ -2763,17 +2763,6 @@ static bool vtd_process_inv_desc(IntelIOMMUState *s)
         }
         break;
 
-    /*
-     * TODO: the entity of below two cases will be implemented in future series.
-     * To make guest (which integrates scalable mode support patch set in
-     * iommu driver) work, just return true is enough so far.
-     */
-    case VTD_INV_DESC_PC:
-        break;
-
-    case VTD_INV_DESC_PIOTLB:
-        break;
-
     case VTD_INV_DESC_WAIT:
         trace_vtd_inv_desc("wait", inv_desc.hi, inv_desc.lo);
         if (!vtd_process_wait_desc(s, &inv_desc)) {
@@ -2795,6 +2784,17 @@ static bool vtd_process_inv_desc(IntelIOMMUState *s)
         }
         break;
 
+    /*
+     * TODO: the entity of below two cases will be implemented in future series.
+     * To make guest (which integrates scalable mode support patch set in
+     * iommu driver) work, just return true is enough so far.
+     */
+    case VTD_INV_DESC_PC:
+    case VTD_INV_DESC_PIOTLB:
+        if (s->scalable_mode) {
+            break;
+        }
+    /* fallthrough */
     default:
         error_report_once("%s: invalid inv desc: hi=%"PRIx64", lo=%"PRIx64
                           " (unknown type)", __func__, inv_desc.hi,