Add API to get memory mapping without do paging

crash does not need the virtual address and physical address mapping, and the
mapping does not include the memory that is not referenced by the page table.
crash does not use the virtual address, so we can create the mapping for all
physical memory(virtual address is always 0). This patch provides a API to do
this thing, and it will be used in the following patch.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>

diff --git a/memory_mapping.c b/memory_mapping.c
index 627397a0d53ae00652878604802cf8ea58811c9f..adb159577d7b844c1af79a88d2e7da71975f7acf 100644 (file)
--- a/memory_mapping.c
+++ b/memory_mapping.c
@@ -211,3 +211,12 @@ int qemu_get_guest_memory_mapping(MemoryMappingList *list)
     return 0;
 }
 #endif
+
+void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list)
+{
+    RAMBlock *block;
+
+    QLIST_FOREACH(block, &ram_list.blocks, next) {
+        create_new_memory_mapping(list, block->offset, 0, block->length);
+    }
+}

diff --git a/memory_mapping.h b/memory_mapping.h
index 7f3c256548bf7bc6426329bb550be2631b84dd2c..190de12453f2cb1b209295f398d66cdf7af567f4 100644 (file)
--- a/memory_mapping.h
+++ b/memory_mapping.h
@@ -60,6 +60,9 @@ static inline int qemu_get_guest_memory_mapping(MemoryMappingList *list)
 }
 #endif
 
+/* get guest's memory mapping without do paging(virtual address is 0). */
+void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list);
+
 #else
 
 /* We use MemoryMappingList* in cpu-all.h */