1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 /* 4 * This driver checks if the PTT Bit is set correctly within the FWSTS4 5 * register. This is needed in order to use the iTPM, because we have to 6 * check prior using the interface that this bit is set correctly - otherwise 7 * it could work unpredictable. The bit should already be set if the Intel ME 8 * is still in the preboot phase. 9 * 10 */ 11 /* 12 * ptt_active 13 * 14 * Checks if the Intel PTT is active. If PTT is active, returns true, 15 * false otherwise. 16 */ 17 bool ptt_active(void); 18