3 files changed, 25 insertions, 15 deletions

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 5baaf48..0f07159 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -583,6 +583,19 @@ void memory_region_notify_iommu(MemoryRegion *mr,
 void memory_region_register_iommu_notifier(MemoryRegion *mr, Notifier *n);
 
 /**
+ * memory_region_iommu_replay: replay existing IOMMU translations to
+ * a notifier
+ *
+ * @mr: the memory region to observe
+ * @n: the notifier to which to replay iommu mappings
+ * @granularity: Minimum page granularity to replay notifications for
+ * @is_write: Whether to treat the replay as a translate "write"
+ *     through the iommu
+ */
+void memory_region_iommu_replay(MemoryRegion *mr, Notifier *n,
+                                hwaddr granularity, bool is_write);
+
+/**
  * memory_region_unregister_iommu_notifier: unregister a notifier for
  * changes to IOMMU translation entries.
  *
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index 9b9901f..f037f3c 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -59,22 +59,19 @@ typedef struct VFIOAddressSpace {
 
 struct VFIOGroup;
 
-typedef struct VFIOType1 {
-    MemoryListener listener;
-    int error;
-    bool initialized;
-} VFIOType1;
-
 typedef struct VFIOContainer {
     VFIOAddressSpace *space;
     int fd; /* /dev/vfio/vfio, empowered by the attached groups */
-    struct {
-        /* enable abstraction to support various iommu backends */
-        union {
-            VFIOType1 type1;
-        };
-        void (*release)(struct VFIOContainer *);
-    } iommu_data;
+    MemoryListener listener;
+    int error;
+    bool initialized;
+    /*
+     * This assumes the host IOMMU can support only a single
+     * contiguous IOVA window.  We may need to generalize that in
+     * future
+     */
+    hwaddr min_iova, max_iova;
+    uint64_t iova_pgsizes;
     QLIST_HEAD(, VFIOGuestIOMMU) giommu_list;
     QLIST_HEAD(, VFIOGroup) group_list;
     QLIST_ENTRY(VFIOContainer) next;
diff --git a/include/hw/vfio/vfio-platform.h b/include/hw/vfio/vfio-platform.h
index c5cf1d7..b468f80 100644
--- a/include/hw/vfio/vfio-platform.h
+++ b/include/hw/vfio/vfio-platform.h
@@ -34,8 +34,8 @@ enum {
 typedef struct VFIOINTp {
     QLIST_ENTRY(VFIOINTp) next; /* entry for IRQ list */
     QSIMPLEQ_ENTRY(VFIOINTp) pqnext; /* entry for pending IRQ queue */
-    EventNotifier interrupt; /* eventfd triggered on interrupt */
-    EventNotifier unmask; /* eventfd for unmask on QEMU bypass */
+    EventNotifier *interrupt; /* eventfd triggered on interrupt */
+    EventNotifier *unmask; /* eventfd for unmask on QEMU bypass */
     qemu_irq qemuirq;
     struct VFIOPlatformDevice *vdev; /* back pointer to device */
     int state; /* inactive, pending, active */