memory: move mem_path handling to memory_region_allocate_system_memory
Like the previous patch did in exec.c, split memory_region_init_ram and
memory_region_init_ram_from_file, and push mem_path one step further up.
Other RAM regions than system memory will now be backed by regular RAM.
Also, boards that do not use memory_region_allocate_system_memory will
not support -mem-path anymore. This can be changed before the patches
are merged by migrating boards to use the function.
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>
diff --git a/memory.c b/memory.c
index 063effe..09f98fc 100644
--- a/memory.c
+++ b/memory.c
@@ -1030,13 +1030,24 @@
mr->ram = true;
mr->terminates = true;
mr->destructor = memory_region_destructor_ram;
- if (mem_path) {
- mr->ram_addr = qemu_ram_alloc_from_file(size, mr, mem_path);
- } else {
- mr->ram_addr = qemu_ram_alloc(size, mr);
- }
+ mr->ram_addr = qemu_ram_alloc(size, mr);
}
+#ifdef __linux__
+void memory_region_init_ram_from_file(MemoryRegion *mr,
+ struct Object *owner,
+ const char *name,
+ uint64_t size,
+ const char *path)
+{
+ memory_region_init(mr, owner, name, size);
+ mr->ram = true;
+ mr->terminates = true;
+ mr->destructor = memory_region_destructor_ram;
+ mr->ram_addr = qemu_ram_alloc_from_file(size, mr, path);
+}
+#endif
+
void memory_region_init_ram_ptr(MemoryRegion *mr,
Object *owner,
const char *name,
