blob: c66f7db86268893ef6b1b66883352df83e60dedd [file] [log] [blame]
/*
* Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SMCALL_H
#define SMCALL_H
#define SMC_NUM_ENTITIES 64U
#define SMC_NUM_ARGS 4U
#define SMC_NUM_PARAMS (SMC_NUM_ARGS - 1U)
#define SMC_IS_FASTCALL(smc_nr) ((smc_nr) & 0x80000000U)
#define SMC_IS_SMC64(smc_nr) ((smc_nr) & 0x40000000U)
#define SMC_ENTITY(smc_nr) (((smc_nr) & 0x3F000000U) >> 24U)
#define SMC_FUNCTION(smc_nr) ((smc_nr) & 0x0000FFFFU)
#define SMC_NR(entity, fn, fastcall, smc64) \
(((((uint32_t)(fastcall)) & 0x1U) << 31U) | \
(((smc64) & 0x1U) << 30U) | \
(((entity) & 0x3FU) << 24U) | \
((fn) & 0xFFFFU))
#define SMC_FASTCALL_NR(entity, fn) SMC_NR((entity), (fn), 1U, 0U)
#define SMC_FASTCALL64_NR(entity, fn) SMC_NR((entity), (fn), 1U, 1U)
#define SMC_YIELDCALL_NR(entity, fn) SMC_NR((entity), (fn), 0U, 0U)
#define SMC_YIELDCALL64_NR(entity, fn) SMC_NR((entity), (fn), 0U, 1U)
#define SMC_ENTITY_ARCH 0U /* ARM Architecture calls */
#define SMC_ENTITY_CPU 1U /* CPU Service calls */
#define SMC_ENTITY_SIP 2U /* SIP Service calls */
#define SMC_ENTITY_OEM 3U /* OEM Service calls */
#define SMC_ENTITY_STD 4U /* Standard Service calls */
#define SMC_ENTITY_RESERVED 5U /* Reserved for future use */
#define SMC_ENTITY_TRUSTED_APP 48U /* Trusted Application calls */
#define SMC_ENTITY_TRUSTED_OS 50U /* Trusted OS calls */
#define SMC_ENTITY_LOGGING 51U /* Used for secure -> nonsecure logging */
#define SMC_ENTITY_SECURE_MONITOR 60U /* Trusted OS calls internal to secure monitor */
/* FC = Fast call, YC = Yielding call */
#define SMC_YC_RESTART_LAST SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0U)
#define SMC_YC_NOP SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1U)
/*
* Return from secure os to non-secure os with return value in r1
*/
#define SMC_YC_NS_RETURN SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0U)
#define SMC_FC_RESERVED SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0U)
#define SMC_FC_FIQ_EXIT SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1U)
#define SMC_FC_REQUEST_FIQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 2U)
#define SMC_FC_GET_NEXT_IRQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 3U)
#define SMC_FC_FIQ_ENTER SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 4U)
#define SMC_FC64_SET_FIQ_HANDLER SMC_FASTCALL64_NR(SMC_ENTITY_SECURE_MONITOR, 5U)
#define SMC_FC64_GET_FIQ_REGS SMC_FASTCALL64_NR (SMC_ENTITY_SECURE_MONITOR, 6U)
#define SMC_FC_CPU_SUSPEND SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 7U)
#define SMC_FC_CPU_RESUME SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 8U)
#define SMC_FC_AARCH_SWITCH SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 9U)
#define SMC_FC_GET_VERSION_STR SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 10U)
/* Trusted OS entity calls */
#define SMC_YC_VIRTIO_GET_DESCR SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 20U)
#define SMC_YC_VIRTIO_START SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 21U)
#define SMC_YC_VIRTIO_STOP SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 22U)
#define SMC_YC_VDEV_RESET SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 23U)
#define SMC_YC_VDEV_KICK_VQ SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 24U)
#define SMC_YC_SET_ROT_PARAMS SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 65535U)
/*
* Standard Trusted OS Function IDs that fall under Trusted OS call range
* according to SMC calling convention
*/
#define SMC_FC64_GET_UUID SMC_FASTCALL64_NR(63U, 0xFF01U) /* Implementation UID */
#define SMC_FC_GET_UUID SMC_FASTCALL_NR(63U, 0xFF01U) /* Implementation.UID */
#endif /* SMCALL_H */