1 files changed, 50 insertions, 0 deletions
diff --git a/include/hw/vfio/vfio-container-base.h b/include/hw/vfio/vfio-container-base.h
new file mode 100644
index 0000000000..1d6daaea5d
--- /dev/null
+++ b/include/hw/vfio/vfio-container-base.h
@@ -0,0 +1,50 @@
+/*
+ * VFIO BASE CONTAINER
+ *
+ * Copyright (C) 2023 Intel Corporation.
+ * Copyright Red Hat, Inc. 2023
+ *
+ * Authors: Yi Liu <yi.l.liu@intel.com>
+ *          Eric Auger <eric.auger@redhat.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef HW_VFIO_VFIO_CONTAINER_BASE_H
+#define HW_VFIO_VFIO_CONTAINER_BASE_H
+
+#include "exec/memory.h"
+
+typedef struct VFIODevice VFIODevice;
+typedef struct VFIOIOMMUOps VFIOIOMMUOps;
+
+typedef struct {
+    unsigned long *bitmap;
+    hwaddr size;
+    hwaddr pages;
+} VFIOBitmap;
+
+/*
+ * This is the base object for vfio container backends
+ */
+typedef struct VFIOContainerBase {
+    const VFIOIOMMUOps *ops;
+} VFIOContainerBase;
+
+struct VFIOIOMMUOps {
+    /* basic feature */
+    int (*dma_map)(VFIOContainerBase *bcontainer,
+                   hwaddr iova, ram_addr_t size,
+                   void *vaddr, bool readonly);
+    int (*dma_unmap)(VFIOContainerBase *bcontainer,
+                     hwaddr iova, ram_addr_t size,
+                     IOMMUTLBEntry *iotlb);
+    int (*attach_device)(const char *name, VFIODevice *vbasedev,
+                         AddressSpace *as, Error **errp);
+    void (*detach_device)(VFIODevice *vbasedev);
+    /* migration feature */
+    int (*set_dirty_page_tracking)(VFIOContainerBase *bcontainer, bool start);
+    int (*query_dirty_bitmap)(VFIOContainerBase *bcontainer, VFIOBitmap *vbmap,
+                              hwaddr iova, hwaddr size);
+};
+#endif /* HW_VFIO_VFIO_CONTAINER_BASE_H */