2  * QEMU Host Memory Backend for hugetlbfs
40 file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)  in file_backend_memory_alloc()  argument
43     error_setg(errp, "backend '%s' not supported on this host",  in file_backend_memory_alloc()
44                object_get_typename(OBJECT(backend)));  in file_backend_memory_alloc()
47     HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(backend);  in file_backend_memory_alloc()
51     if (!backend->size) {  in file_backend_memory_alloc()
52         error_setg(errp, "can't create backend with size 0");  in file_backend_memory_alloc()
73         if (fb->readonly && backend->share) {  in file_backend_memory_alloc()
83     backend->aligned = true;  in file_backend_memory_alloc()
84     name = host_memory_backend_get_name(backend);  in file_backend_memory_alloc()
85     ram_flags = backend->share ? RAM_SHARED : 0;  in file_backend_memory_alloc()
88     ram_flags |= backend->reserve ? 0 : RAM_NORESERVE;  in file_backend_memory_alloc()
89     ram_flags |= backend->guest_memfd ? RAM_GUEST_MEMFD : 0;  in file_backend_memory_alloc()
92     return memory_region_init_ram_from_file(&backend->mr, OBJECT(backend), name,  in file_backend_memory_alloc()
93                                             backend->size, fb->align, ram_flags,  in file_backend_memory_alloc()
107     HostMemoryBackend *backend = MEMORY_BACKEND(o);  in set_mem_path()  local
110     if (host_memory_backend_mr_inited(backend)) {  in set_mem_path()
144     HostMemoryBackend *backend = MEMORY_BACKEND(o);  in file_memory_backend_set_align()  local
148     if (host_memory_backend_mr_inited(backend)) {  in file_memory_backend_set_align()
174     HostMemoryBackend *backend = MEMORY_BACKEND(o);  in file_memory_backend_set_offset()  local
178     if (host_memory_backend_mr_inited(backend)) {  in file_memory_backend_set_offset()
198     HostMemoryBackend *backend = MEMORY_BACKEND(o);  in file_memory_backend_set_pmem()  local
201     if (host_memory_backend_mr_inited(backend)) {  in file_memory_backend_set_pmem()
221     HostMemoryBackend *backend = MEMORY_BACKEND(obj);  in file_memory_backend_set_readonly()  local
224     if (host_memory_backend_mr_inited(backend)) {  in file_memory_backend_set_readonly()
247     HostMemoryBackend *backend = MEMORY_BACKEND(obj);  in file_memory_backend_set_rom()  local
250     if (host_memory_backend_mr_inited(backend)) {  in file_memory_backend_set_rom()
261     HostMemoryBackend *backend = MEMORY_BACKEND(obj);  in file_backend_unparent()  local
264     if (host_memory_backend_mr_inited(backend) && fb->discard_data) {  in file_backend_unparent()
265         void *ptr = memory_region_get_ram_ptr(&backend->mr);  in file_backend_unparent()
266         uint64_t sz = memory_region_size(&backend->mr);  in file_backend_unparent()