139 lines
5.8 KiB
C
139 lines
5.8 KiB
C
/*
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* Copyright (c) 2013-2014 Google Inc. All rights reserved
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __LINUX_TRUSTY_SMCALL_H
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#define __LINUX_TRUSTY_SMCALL_H
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#define SMC_NUM_ENTITIES 64
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#define SMC_NUM_ARGS 4
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#define SMC_NUM_PARAMS (SMC_NUM_ARGS - 1)
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#define SMC_IS_FASTCALL(smc_nr) ((smc_nr) & 0x80000000)
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#define SMC_IS_SMC64(smc_nr) ((smc_nr) & 0x40000000)
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#define SMC_ENTITY(smc_nr) (((smc_nr) & 0x3F000000) >> 24)
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#define SMC_FUNCTION(smc_nr) ((smc_nr) & 0x0000FFFF)
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#define SMC_NR(entity, fn, fastcall, smc64) ((((fastcall) & 0x1) << 31) | \
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(((smc64) & 0x1) << 30) | \
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(((entity) & 0x3F) << 24) | \
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((fn) & 0xFFFF) \
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)
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#define SMC_FASTCALL_NR(entity, fn) SMC_NR((entity), (fn), 1, 0)
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#define SMC_STDCALL_NR(entity, fn) SMC_NR((entity), (fn), 0, 0)
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#define SMC_FASTCALL64_NR(entity, fn) SMC_NR((entity), (fn), 1, 1)
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#define SMC_STDCALL64_NR(entity, fn) SMC_NR((entity), (fn), 0, 1)
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#define SMC_ENTITY_ARCH 0 /* ARM Architecture calls */
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#define SMC_ENTITY_CPU 1 /* CPU Service calls */
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#define SMC_ENTITY_SIP 2 /* SIP Service calls */
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#define SMC_ENTITY_OEM 3 /* OEM Service calls */
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#define SMC_ENTITY_STD 4 /* Standard Service calls */
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#define SMC_ENTITY_RESERVED 5 /* Reserved for future use */
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#define SMC_ENTITY_TRUSTED_APP 48 /* Trusted Application calls */
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#define SMC_ENTITY_TRUSTED_OS 50 /* Trusted OS calls */
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#define SMC_ENTITY_LOGGING 51 /* Used for secure -> nonsecure logging */
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#define SMC_ENTITY_GUEST_RESET 52 /* Notify Trusted OS */
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/* about guest reset */
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#define SMC_ENTITY_SECURE_MONITOR 60 /* Trusted OS calls internal to secure monitor */
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/* FC = Fast call, SC = Standard call */
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#define SMC_SC_RESTART_LAST SMC_STDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0)
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#define SMC_SC_LOCKED_NOP SMC_STDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1)
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/**
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* SMC_SC_RESTART_FIQ - Re-enter trusty after it was interrupted by an fiq
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*
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* No arguments, no return value.
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*
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* Re-enter trusty after returning to ns to process an fiq. Must be called iff
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* trusty returns SM_ERR_FIQ_INTERRUPTED.
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*
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* Enable by selecting api version TRUSTY_API_VERSION_RESTART_FIQ (1) or later.
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*/
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#define SMC_SC_RESTART_FIQ SMC_STDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 2)
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/**
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* SMC_SC_NOP - Enter trusty to run pending work.
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*
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* No arguments.
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*
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* Returns SM_ERR_NOP_INTERRUPTED or SM_ERR_NOP_DONE.
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* If SM_ERR_NOP_INTERRUPTED is returned, the call must be repeated.
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*
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* Enable by selecting api version TRUSTY_API_VERSION_SMP (2) or later.
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*/
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#define SMC_SC_NOP SMC_STDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 3)
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/*
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* Return from secure os to non-secure os with return value in r1
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*/
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#define SMC_SC_NS_RETURN SMC_STDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0)
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#define SMC_FC_RESERVED SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0)
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#define SMC_FC_FIQ_EXIT SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1)
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#define SMC_FC_REQUEST_FIQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 2)
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#define SMC_FC_GET_NEXT_IRQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 3)
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#define SMC_FC_FIQ_ENTER SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 4)
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#define SMC_FC64_SET_FIQ_HANDLER SMC_FASTCALL64_NR(SMC_ENTITY_SECURE_MONITOR, 5)
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#define SMC_FC64_GET_FIQ_REGS SMC_FASTCALL64_NR (SMC_ENTITY_SECURE_MONITOR, 6)
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#define SMC_FC_CPU_SUSPEND SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 7)
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#define SMC_FC_CPU_RESUME SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 8)
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#define SMC_FC_AARCH_SWITCH SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 9)
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#define SMC_FC_GET_VERSION_STR SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 10)
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/**
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* SMC_FC_API_VERSION - Find and select supported API version.
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*
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* @r1: Version supported by client.
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*
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* Returns version supported by trusty.
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*
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* If multiple versions are supported, the client should start by calling
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* SMC_FC_API_VERSION with the largest version it supports. Trusty will then
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* return a version it supports. If the client does not support the version
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* returned by trusty and the version returned is less than the version
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* requested, repeat the call with the largest supported version less than the
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* last returned version.
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*
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* This call must be made before any calls that are affected by the api version.
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*/
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#define TRUSTY_API_VERSION_RESTART_FIQ (1)
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#define TRUSTY_API_VERSION_SMP (2)
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#define TRUSTY_API_VERSION_SMP_NOP (3)
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#define TRUSTY_API_VERSION_CURRENT (3)
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#define SMC_FC_API_VERSION SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 11)
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/* TRUSTED_OS entity calls */
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#define SMC_SC_VIRTIO_GET_DESCR SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 20)
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#define SMC_SC_VIRTIO_START SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 21)
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#define SMC_SC_VIRTIO_STOP SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 22)
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#define SMC_SC_VDEV_RESET SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 23)
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#define SMC_SC_VDEV_KICK_VQ SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 24)
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#define SMC_NC_VDEV_KICK_VQ SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 25)
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#endif /* __LINUX_TRUSTY_SMCALL_H */
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