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033648652f
RFC4122 defines that fields are stored in network order (big endian), but TF-A stores them in machine order (little endian by default in TF-A). We cannot change the future UUIDs that are already generated, but we can store all the bytes using arrays and modify fiptool to generate the UUIDs with the correct byte order. Change-Id: I97be2d3168d91f4dee7ccfafc533ea55ff33e46f Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/*
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* Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef __SMCCC_H__
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#define __SMCCC_H__
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#include <utils_def.h>
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#define SMCCC_VERSION_MAJOR_SHIFT U(16)
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#define SMCCC_VERSION_MAJOR_MASK U(0x7FFF)
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#define SMCCC_VERSION_MINOR_SHIFT U(0)
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#define SMCCC_VERSION_MINOR_MASK U(0xFFFF)
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#define MAKE_SMCCC_VERSION(_major, _minor) \
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((((uint32_t)(_major) & SMCCC_VERSION_MAJOR_MASK) << \
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SMCCC_VERSION_MAJOR_SHIFT) \
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| (((uint32_t)(_minor) & SMCCC_VERSION_MINOR_MASK) << \
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SMCCC_VERSION_MINOR_SHIFT))
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#if SMCCC_MAJOR_VERSION == 1
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# define SMCCC_MINOR_VERSION U(1)
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# include <smccc_v1.h>
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#elif SMCCC_MAJOR_VERSION == 2
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# define SMCCC_MINOR_VERSION U(0)
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# include <smccc_v2.h>
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#else
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# error "Unsupported version of SMCCC."
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#endif
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/* Various flags passed to SMC handlers */
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#define SMC_FROM_SECURE (U(0) << 0)
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#define SMC_FROM_NON_SECURE (U(1) << 0)
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#ifndef __ASSEMBLY__
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#include <cassert.h>
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#include <stdint.h>
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#define is_caller_non_secure(_f) (((_f) & SMC_FROM_NON_SECURE) != U(0))
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#define is_caller_secure(_f) (!is_caller_non_secure(_f))
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/* The macro below is used to identify a Standard Service SMC call */
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#define is_std_svc_call(_fid) (GET_SMC_OEN(_fid) == OEN_STD_START)
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/* The macro below is used to identify a Arm Architectural Service SMC call */
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#define is_arm_arch_svc_call(_fid) (GET_SMC_OEN(_fid) == OEN_ARM_START)
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/* The macro below is used to identify a valid Fast SMC call */
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#define is_valid_fast_smc(_fid) ((!(((_fid) >> 16) & U(0xff))) && \
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(GET_SMC_TYPE(_fid) == SMC_TYPE_FAST))
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/*
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* Macro to define UUID for services. Apart from defining and initializing a
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* uuid_t structure, this macro verifies that the first word of the defined UUID
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* does not equal SMC_UNK. This is to ensure that the caller won't mistake the
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* returned UUID in x0 for an invalid SMC error return
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*/
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#if !ERROR_DEPRECATED
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#define DEFINE_SVC_UUID(_name, _tl, _tm, _th, _cl, _ch, \
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_n0, _n1, _n2, _n3, _n4, _n5) \
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CASSERT((uint32_t)(_tl) != (uint32_t) SMC_UNK, invalid_svc_uuid);\
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static const uuid_t _name = { \
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_tl, _tm, _th, _cl, _ch, \
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{ _n0, _n1, _n2, _n3, _n4, _n5 } \
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}
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#endif
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#define DEFINE_SVC_UUID2(_name, _tl, _tm, _th, _cl, _ch, \
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_n0, _n1, _n2, _n3, _n4, _n5) \
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CASSERT((uint32_t)(_tl) != (uint32_t) SMC_UNK, invalid_svc_uuid);\
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static const uuid_t _name = { \
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{(_tl >> 24) & 0xFF, \
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(_tl >> 16) & 0xFF, \
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(_tl >> 8) & 0xFF, \
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(_tl & 0xFF)}, \
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{(_tm >> 8) & 0xFF, \
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(_tm & 0xFF)}, \
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{(_th >> 8) & 0xFF, \
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(_th & 0xFF)}, \
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_cl, _ch, \
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{ _n0, _n1, _n2, _n3, _n4, _n5 } \
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}
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#endif /*__ASSEMBLY__*/
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#endif /* __SMCCC_H__ */
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