/* * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of ARM nor the names of its contributors may be used * to endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Definitions related to the Trusted OS Service as per the SMC Calling * Convention. */ #ifndef __TRUSTED_OS_H__ #define __TRUSTED_OS_H__ #include /* Trusted OS Function IDs that fall under Trusted OS call range */ #define SMC_TOS_CALL_COUNT 0xbf00ff00 #define SMC_TOS_UID 0xbf00ff01 /* 0xbf00ff02 is reserved */ #define SMC_TOS_REVISION 0xbf00ff03 /* * Detect whether a Trusted OS is present in the software stack. * This is implemented using the Trusted OS UID SMC call. * * If a Trusted OS is detected then this function returns 1 * and populates 'tos_uuid' with the UUID of the detected Trusted OS. * Otherwise, this function returns 0 and the value pointed by 'tos_uuid' * should be ignored. */ unsigned int is_trusted_os_present(uuid_t *tos_uuid); #endif /* __TRUSTED_OS_H__ */