1 files changed, 64 insertions, 0 deletions
diff --git a/include/sysemu/memory_mapping.h b/include/sysemu/memory_mapping.h
new file mode 100644
index 0000000000..1256125963
--- /dev/null
+++ b/include/sysemu/memory_mapping.h
@@ -0,0 +1,64 @@
+/*
+ * QEMU memory mapping
+ *
+ * Copyright Fujitsu, Corp. 2011, 2012
+ *
+ * Authors:
+ *     Wen Congyang <wency@cn.fujitsu.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef MEMORY_MAPPING_H
+#define MEMORY_MAPPING_H
+
+#include "qemu/queue.h"
+
+/* The physical and virtual address in the memory mapping are contiguous. */
+typedef struct MemoryMapping {
+    hwaddr phys_addr;
+    target_ulong virt_addr;
+    ram_addr_t length;
+    QTAILQ_ENTRY(MemoryMapping) next;
+} MemoryMapping;
+
+typedef struct MemoryMappingList {
+    unsigned int num;
+    MemoryMapping *last_mapping;
+    QTAILQ_HEAD(, MemoryMapping) head;
+} MemoryMappingList;
+
+int cpu_get_memory_mapping(MemoryMappingList *list, CPUArchState *env);
+bool cpu_paging_enabled(CPUArchState *env);
+
+/*
+ * add or merge the memory region [phys_addr, phys_addr + length) into the
+ * memory mapping's list. The region's virtual address starts with virt_addr,
+ * and is contiguous. The list is sorted by phys_addr.
+ */
+void memory_mapping_list_add_merge_sorted(MemoryMappingList *list,
+                                          hwaddr phys_addr,
+                                          hwaddr virt_addr,
+                                          ram_addr_t length);
+
+void memory_mapping_list_free(MemoryMappingList *list);
+
+void memory_mapping_list_init(MemoryMappingList *list);
+
+/*
+ * Return value:
+ *    0: success
+ *   -1: failed
+ *   -2: unsupported
+ */
+int qemu_get_guest_memory_mapping(MemoryMappingList *list);
+
+/* get guest's memory mapping without do paging(virtual address is 0). */
+void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list);
+
+void memory_mapping_filter(MemoryMappingList *list, int64_t begin,
+                           int64_t length);
+
+#endif