Hi,
On Mon, Mar 10, 2025 at 04:18:34PM +0800, Chenyi Qiang wrote:
> --- a/system/physmem.c
> +++ b/system/physmem.c
> @@ -1885,6 +1886,16 @@ static void ram_block_add(RAMBlock *new_block, Error **errp)
> qemu_mutex_unlock_ramlist();
> goto out_free;
> }
> +
> + new_block->memory_attribute_manager = MEMORY_ATTRIBUTE_MANAGER(object_new(TYPE_MEMORY_ATTRIBUTE_MANAGER));
> + if (memory_attribute_manager_realize(new_block->memory_attribute_manager, new_block->mr)) {
> + error_setg(errp, "Failed to realize memory attribute manager");
> + object_unref(OBJECT(new_block->memory_attribute_manager));
> + close(new_block->guest_memfd);
> + ram_block_discard_require(false);
> + qemu_mutex_unlock_ramlist();
> + goto out_free;
> + }
> }
>
> ram_size = (new_block->offset + new_block->max_length) >> TARGET_PAGE_BITS;
Might as well put the above into a separate memory manager init function
to start with. It keeps the goto out_free error path unified, and makes
things more future proof if the rest of ram_block_add() ever develops a
need to check for errors.
Regards,
Tony
