* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
+
#include "qemu/osdep.h"
#include "qapi/error.h"
-#include "qemu-common.h"
#include "qemu/error-report.h"
+#include "qemu/module.h"
#include "sysemu/hostmem.h"
#include "sysemu/sysemu.h"
#include "qom/object_interfaces.h"
-/* hostmem-file.c */
-/**
- * @TYPE_MEMORY_BACKEND_FILE:
- * name of backend that uses mmap on a file descriptor
- */
-#define TYPE_MEMORY_BACKEND_FILE "memory-backend-file"
-
#define MEMORY_BACKEND_FILE(obj) \
OBJECT_CHECK(HostMemoryBackendFile, (obj), TYPE_MEMORY_BACKEND_FILE)
return;
}
- /*
- * Verify pmem file size since starting a guest with an incorrect size
- * leads to confusing failures inside the guest.
- */
- if (fb->is_pmem) {
- Error *local_err = NULL;
- uint64_t size;
-
- size = qemu_get_pmem_size(fb->mem_path, &local_err);
- if (!size) {
- error_propagate(errp, local_err);
- return;
- }
-
- if (backend->size > size) {
- error_setg(errp, "size property %" PRIu64 " is larger than "
- "pmem file \"%s\" size %" PRIu64, backend->size,
- fb->mem_path, size);
- return;
- }
- }
-
- backend->force_prealloc = mem_prealloc;
name = host_memory_backend_get_name(backend);
memory_region_init_ram_from_file(&backend->mr, OBJECT(backend),
name,
{
HostMemoryBackend *backend = MEMORY_BACKEND(o);
HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
- Error *local_err = NULL;
uint64_t val;
if (host_memory_backend_mr_inited(backend)) {
- error_setg(&local_err, "cannot change property '%s' of %s",
- name, object_get_typename(o));
- goto out;
+ error_setg(errp, "cannot change property '%s' of %s", name,
+ object_get_typename(o));
+ return;
}
- visit_type_size(v, name, &val, &local_err);
- if (local_err) {
- goto out;
+ if (!visit_type_size(v, name, &val, errp)) {
+ return;
}
fb->align = val;
-
- out:
- error_propagate(errp, local_err);
}
static bool file_memory_backend_get_pmem(Object *o, Error **errp)
HostMemoryBackendFile *fb = MEMORY_BACKEND_FILE(o);
if (host_memory_backend_mr_inited(backend)) {
-
error_setg(errp, "cannot change property 'pmem' of %s.",
object_get_typename(o));
return;
#ifndef CONFIG_LIBPMEM
if (value) {
- Error *local_err = NULL;
-
- error_setg(&local_err,
- "Lack of libpmem support while setting the 'pmem=on'"
+ error_setg(errp, "Lack of libpmem support while setting the 'pmem=on'"
" of %s. We can't ensure data persistence.",
object_get_typename(o));
- error_propagate(errp, local_err);
return;
}
#endif
oc->unparent = file_backend_unparent;
object_class_property_add_bool(oc, "discard-data",
- file_memory_backend_get_discard_data, file_memory_backend_set_discard_data,
- &error_abort);
+ file_memory_backend_get_discard_data, file_memory_backend_set_discard_data);
object_class_property_add_str(oc, "mem-path",
- get_mem_path, set_mem_path,
- &error_abort);
+ get_mem_path, set_mem_path);
object_class_property_add(oc, "align", "int",
file_memory_backend_get_align,
file_memory_backend_set_align,
- NULL, NULL, &error_abort);
+ NULL, NULL);
object_class_property_add_bool(oc, "pmem",
- file_memory_backend_get_pmem, file_memory_backend_set_pmem,
- &error_abort);
+ file_memory_backend_get_pmem, file_memory_backend_set_pmem);
}
static void file_backend_instance_finalize(Object *o)