diff options
Diffstat (limited to 'backends/hostmem-file.c')
| -rw-r--r-- | backends/hostmem-file.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/backends/hostmem-file.c b/backends/hostmem-file.c index e827692124..733408e076 100644 --- a/backends/hostmem-file.c +++ b/backends/hostmem-file.c @@ -29,6 +29,7 @@ struct HostMemoryBackendFile { uint64_t align; bool discard_data; bool is_pmem; + bool readonly; }; static void @@ -56,7 +57,7 @@ file_backend_memory_alloc(HostMemoryBackend *backend, Error **errp) backend->size, fb->align, (backend->share ? RAM_SHARED : 0) | (fb->is_pmem ? RAM_PMEM : 0), - fb->mem_path, false, errp); + fb->mem_path, fb->readonly, errp); g_free(name); #endif } @@ -151,6 +152,28 @@ static void file_memory_backend_set_pmem(Object *o, bool value, Error **errp) fb->is_pmem = value; } +static bool file_memory_backend_get_readonly(Object *obj, Error **errp) +{ + HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(obj); + + return fb->readonly; +} + +static void file_memory_backend_set_readonly(Object *obj, bool value, + Error **errp) +{ + HostMemoryBackend *backend = MEMORY_BACKEND(obj); + HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(obj); + + if (host_memory_backend_mr_inited(backend)) { + error_setg(errp, "cannot change property 'readonly' of %s.", + object_get_typename(obj)); + return; + } + + fb->readonly = value; +} + static void file_backend_unparent(Object *obj) { HostMemoryBackend *backend = MEMORY_BACKEND(obj); @@ -182,6 +205,9 @@ file_backend_class_init(ObjectClass *oc, void *data) NULL, NULL); object_class_property_add_bool(oc, "pmem", file_memory_backend_get_pmem, file_memory_backend_set_pmem); + object_class_property_add_bool(oc, "readonly", + file_memory_backend_get_readonly, + file_memory_backend_set_readonly); } static void file_backend_instance_finalize(Object *o) |