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 SMCALL_H 8 #define SMCALL_H 9 10 #define SMC_NUM_ENTITIES 64U 11 #define SMC_NUM_ARGS 4U 12 #define SMC_NUM_PARAMS (SMC_NUM_ARGS - 1U) 13 14 #define SMC_IS_FASTCALL(smc_nr) ((smc_nr) & 0x80000000U) 15 #define SMC_IS_SMC64(smc_nr) ((smc_nr) & 0x40000000U) 16 #define SMC_ENTITY(smc_nr) (((smc_nr) & 0x3F000000U) >> 24U) 17 #define SMC_FUNCTION(smc_nr) ((smc_nr) & 0x0000FFFFU) 18 19 #define SMC_NR(entity, fn, fastcall, smc64) \ 20 (((((uint32_t)(fastcall)) & 0x1U) << 31U) | \ 21 (((smc64) & 0x1U) << 30U) | \ 22 (((entity) & 0x3FU) << 24U) | \ 23 ((fn) & 0xFFFFU)) 24 25 #define SMC_FASTCALL_NR(entity, fn) SMC_NR((entity), (fn), 1U, 0U) 26 #define SMC_FASTCALL64_NR(entity, fn) SMC_NR((entity), (fn), 1U, 1U) 27 #define SMC_YIELDCALL_NR(entity, fn) SMC_NR((entity), (fn), 0U, 0U) 28 #define SMC_YIELDCALL64_NR(entity, fn) SMC_NR((entity), (fn), 0U, 1U) 29 30 #define SMC_ENTITY_ARCH 0U /* ARM Architecture calls */ 31 #define SMC_ENTITY_CPU 1U /* CPU Service calls */ 32 #define SMC_ENTITY_SIP 2U /* SIP Service calls */ 33 #define SMC_ENTITY_OEM 3U /* OEM Service calls */ 34 #define SMC_ENTITY_STD 4U /* Standard Service calls */ 35 #define SMC_ENTITY_RESERVED 5U /* Reserved for future use */ 36 #define SMC_ENTITY_TRUSTED_APP 48U /* Trusted Application calls */ 37 #define SMC_ENTITY_TRUSTED_OS 50U /* Trusted OS calls */ 38 #define SMC_ENTITY_LOGGING 51U /* Used for secure -> nonsecure logging */ 39 #define SMC_ENTITY_SECURE_MONITOR 60U /* Trusted OS calls internal to secure monitor */ 40 41 /* FC = Fast call, YC = Yielding call */ 42 #define SMC_YC_RESTART_LAST SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0U) 43 #define SMC_YC_NOP SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1U) 44 45 /* 46 * Return from secure os to non-secure os with return value in r1 47 */ 48 #define SMC_YC_NS_RETURN SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0U) 49 50 #define SMC_FC_RESERVED SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0U) 51 #define SMC_FC_FIQ_EXIT SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1U) 52 #define SMC_FC_REQUEST_FIQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 2U) 53 #define SMC_FC_GET_NEXT_IRQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 3U) 54 #define SMC_FC_FIQ_ENTER SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 4U) 55 56 #define SMC_FC64_SET_FIQ_HANDLER SMC_FASTCALL64_NR(SMC_ENTITY_SECURE_MONITOR, 5U) 57 #define SMC_FC64_GET_FIQ_REGS SMC_FASTCALL64_NR (SMC_ENTITY_SECURE_MONITOR, 6U) 58 59 #define SMC_FC_CPU_SUSPEND SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 7U) 60 #define SMC_FC_CPU_RESUME SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 8U) 61 62 #define SMC_FC_AARCH_SWITCH SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 9U) 63 #define SMC_FC_GET_VERSION_STR SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 10U) 64 65 /* Trusted OS entity calls */ 66 #define SMC_YC_VIRTIO_GET_DESCR SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 20U) 67 #define SMC_YC_VIRTIO_START SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 21U) 68 #define SMC_YC_VIRTIO_STOP SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 22U) 69 70 #define SMC_YC_VDEV_RESET SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 23U) 71 #define SMC_YC_VDEV_KICK_VQ SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 24U) 72 #define SMC_YC_SET_ROT_PARAMS SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 65535U) 73 74 #endif /* SMCALL_H */ 75