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authorPaolo Bonzini <pbonzini@redhat.com>2014-06-10 19:15:24 +0800
committerMichael S. Tsirkin <mst@redhat.com>2014-06-19 18:44:20 +0300
commitdbcb8981183592be129b2e624b7bcd4245e75fbc (patch)
tree639391848fc2cb66c281fb7e8a9fae377bee87f1 /include/exec/memory.h
parenta35ba7be4b696d4c7b47318fd2022e6c3eca0a63 (diff)
hostmem: add property to map memory with MAP_SHARED
A new "share" property can be used with the "memory-file" backend to map memory with MAP_SHARED instead of MAP_PRIVATE. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/exec/memory.h')
-rw-r--r--include/exec/memory.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 1cf5981b2e..3d778d70f0 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -321,6 +321,7 @@ void memory_region_init_ram(MemoryRegion *mr,
* @owner: the object that tracks the region's reference count
* @name: the name of the region.
* @size: size of the region.
+ * @share: %true if memory must be mmaped with the MAP_SHARED flag
* @path: the path in which to allocate the RAM.
* @errp: pointer to Error*, to store an error if it happens.
*/
@@ -328,6 +329,7 @@ void memory_region_init_ram_from_file(MemoryRegion *mr,
struct Object *owner,
const char *name,
uint64_t size,
+ bool share,
const char *path,
Error **errp);
#endif