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[Qemu-devel] [PATCH 06/12 v11] Add API to get memory mapping without do


From: Wen Congyang
Subject: [Qemu-devel] [PATCH 06/12 v11] Add API to get memory mapping without do paging
Date: Mon, 26 Mar 2012 18:03:35 +0800
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100413 Fedora/3.0.4-2.fc13 Thunderbird/3.0.4

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 <address@hidden>
---
 memory_mapping.c |    9 +++++++++
 memory_mapping.h |    3 +++
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/memory_mapping.c b/memory_mapping.c
index b92e2f6..9a2ffe6 100644
--- a/memory_mapping.c
+++ b/memory_mapping.c
@@ -198,3 +198,12 @@ 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 4d44641..a583e44 100644
--- a/memory_mapping.h
+++ b/memory_mapping.h
@@ -59,4 +59,7 @@ 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);
+
 #endif
-- 
1.7.1




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