1 /* 2 * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef __LIB_SM_SMCALL_H 8 #define __LIB_SM_SMCALL_H 9 10 #define SMC_NUM_ENTITIES 64 11 #define SMC_NUM_ARGS 4 12 #define SMC_NUM_PARAMS (SMC_NUM_ARGS - 1) 13 14 #define SMC_IS_FASTCALL(smc_nr) ((smc_nr) & 0x80000000) 15 #define SMC_IS_SMC64(smc_nr) ((smc_nr) & 0x40000000) 16 #define SMC_ENTITY(smc_nr) (((smc_nr) & 0x3F000000) >> 24) 17 #define SMC_FUNCTION(smc_nr) ((smc_nr) & 0x0000FFFF) 18 19 #define SMC_NR(entity, fn, fastcall, smc64) \ 20 (((((unsigned int) (fastcall)) & 0x1) << 31) | \ 21 (((smc64) & 0x1) << 30) | \ 22 (((entity) & 0x3F) << 24) | \ 23 ((fn) & 0xFFFF) \ 24 ) 25 26 #define SMC_FASTCALL_NR(entity, fn) SMC_NR((entity), (fn), 1, 0) 27 #define SMC_FASTCALL64_NR(entity, fn) SMC_NR((entity), (fn), 1, 1) 28 #define SMC_YIELDCALL_NR(entity, fn) SMC_NR((entity), (fn), 0, 0) 29 #define SMC_YIELDCALL64_NR(entity, fn) SMC_NR((entity), (fn), 0, 1) 30 31 #define SMC_ENTITY_ARCH 0 /* ARM Architecture calls */ 32 #define SMC_ENTITY_CPU 1 /* CPU Service calls */ 33 #define SMC_ENTITY_SIP 2 /* SIP Service calls */ 34 #define SMC_ENTITY_OEM 3 /* OEM Service calls */ 35 #define SMC_ENTITY_STD 4 /* Standard Service calls */ 36 #define SMC_ENTITY_RESERVED 5 /* Reserved for future use */ 37 #define SMC_ENTITY_TRUSTED_APP 48 /* Trusted Application calls */ 38 #define SMC_ENTITY_TRUSTED_OS 50 /* Trusted OS calls */ 39 #define SMC_ENTITY_LOGGING 51 /* Used for secure -> nonsecure logging */ 40 #define SMC_ENTITY_SECURE_MONITOR 60 /* Trusted OS calls internal to secure monitor */ 41 42 /* FC = Fast call, YC = Yielding call */ 43 #define SMC_YC_RESTART_LAST SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0) 44 #define SMC_YC_NOP SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1) 45 46 /* 47 * Return from secure os to non-secure os with return value in r1 48 */ 49 #define SMC_YC_NS_RETURN SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0) 50 51 #define SMC_FC_RESERVED SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0) 52 #define SMC_FC_FIQ_EXIT SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1) 53 #define SMC_FC_REQUEST_FIQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 2) 54 #define SMC_FC_GET_NEXT_IRQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 3) 55 #define SMC_FC_FIQ_ENTER SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 4) 56 57 #define SMC_FC64_SET_FIQ_HANDLER SMC_FASTCALL64_NR(SMC_ENTITY_SECURE_MONITOR, 5) 58 #define SMC_FC64_GET_FIQ_REGS SMC_FASTCALL64_NR (SMC_ENTITY_SECURE_MONITOR, 6) 59 60 #define SMC_FC_CPU_SUSPEND SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 7) 61 #define SMC_FC_CPU_RESUME SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 8) 62 63 #define SMC_FC_AARCH_SWITCH SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 9) 64 #define SMC_FC_GET_VERSION_STR SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 10) 65 66 /* Trusted OS entity calls */ 67 #define SMC_YC_VIRTIO_GET_DESCR SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 20) 68 #define SMC_YC_VIRTIO_START SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 21) 69 #define SMC_YC_VIRTIO_STOP SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 22) 70 71 #define SMC_YC_VDEV_RESET SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 23) 72 #define SMC_YC_VDEV_KICK_VQ SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 24) 73 #define SMC_YC_SET_ROT_PARAMS SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 65535) 74 75 #endif /* __LIB_SM_SMCALL_H */ 76