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-rw-r--r--backends/hostmem.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/backends/hostmem.c b/backends/hostmem.c
index 4428e06738..8640294c10 100644
--- a/backends/hostmem.c
+++ b/backends/hostmem.c
@@ -232,7 +232,8 @@ static void host_memory_backend_set_prealloc(Object *obj, bool value,
void *ptr = memory_region_get_ram_ptr(&backend->mr);
uint64_t sz = memory_region_size(&backend->mr);
- os_mem_prealloc(fd, ptr, sz, backend->prealloc_threads, &local_err);
+ qemu_prealloc_mem(fd, ptr, sz, backend->prealloc_threads,
+ backend->prealloc_context, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
@@ -383,8 +384,9 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
* specified NUMA policy in place.
*/
if (backend->prealloc) {
- os_mem_prealloc(memory_region_get_fd(&backend->mr), ptr, sz,
- backend->prealloc_threads, &local_err);
+ qemu_prealloc_mem(memory_region_get_fd(&backend->mr), ptr, sz,
+ backend->prealloc_threads,
+ backend->prealloc_context, &local_err);
if (local_err) {
goto out;
}
@@ -492,6 +494,11 @@ host_memory_backend_class_init(ObjectClass *oc, void *data)
NULL, NULL);
object_class_property_set_description(oc, "prealloc-threads",
"Number of CPU threads to use for prealloc");
+ object_class_property_add_link(oc, "prealloc-context",
+ TYPE_THREAD_CONTEXT, offsetof(HostMemoryBackend, prealloc_context),
+ object_property_allow_set_link, OBJ_PROP_LINK_STRONG);
+ object_class_property_set_description(oc, "prealloc-context",
+ "Context to use for creating CPU threads for preallocation");
object_class_property_add(oc, "size", "int",
host_memory_backend_get_size,
host_memory_backend_set_size,