On Tue, 2013-05-14 at 01:24 +0800, Qiaowei Ren wrote: > static int __init txt_sysfs_init(void) > +{ > + if (!tboot_enabled()) > + return -ENODEV; If there's a CPU flag that indicates tboot support, you should add a modalias for it in order to ensure that the module gets automatically loaded. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx ��.n��������+%������w��{.n������_���v��z����n�r������&��z�ޗ�zf���h���~����������_��+v���)ߣ�