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https://github.com/ARM-software/arm-trusted-firmware.git
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fc19818874
This patch implements support for the 64-bit and 32-bit versions of 0xBF00FF01 SMC function ID, as documented by the SMCCC, to allow non-secure world clients to query SPD's UUID. In order to service this FID, the Trusty SPD now increases the range of SMCs that it services. To restrict Trusty from receiving the extra SMC FIDs, this patch drops any unsupported FID. Verified with TFTF tests for UID query and internal gtest for Trusty. Change-Id: If96fe4993f7e641595cfe67cc6b4210a0d52403f Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
82 lines
3.5 KiB
C
82 lines
3.5 KiB
C
/*
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* Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
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* Copyright (c) 2020, NVIDIA Corporation. 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 SMCALL_H
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#define SMCALL_H
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#define SMC_NUM_ENTITIES 64U
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#define SMC_NUM_ARGS 4U
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#define SMC_NUM_PARAMS (SMC_NUM_ARGS - 1U)
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#define SMC_IS_FASTCALL(smc_nr) ((smc_nr) & 0x80000000U)
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#define SMC_IS_SMC64(smc_nr) ((smc_nr) & 0x40000000U)
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#define SMC_ENTITY(smc_nr) (((smc_nr) & 0x3F000000U) >> 24U)
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#define SMC_FUNCTION(smc_nr) ((smc_nr) & 0x0000FFFFU)
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#define SMC_NR(entity, fn, fastcall, smc64) \
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(((((uint32_t)(fastcall)) & 0x1U) << 31U) | \
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(((smc64) & 0x1U) << 30U) | \
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(((entity) & 0x3FU) << 24U) | \
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((fn) & 0xFFFFU))
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#define SMC_FASTCALL_NR(entity, fn) SMC_NR((entity), (fn), 1U, 0U)
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#define SMC_FASTCALL64_NR(entity, fn) SMC_NR((entity), (fn), 1U, 1U)
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#define SMC_YIELDCALL_NR(entity, fn) SMC_NR((entity), (fn), 0U, 0U)
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#define SMC_YIELDCALL64_NR(entity, fn) SMC_NR((entity), (fn), 0U, 1U)
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#define SMC_ENTITY_ARCH 0U /* ARM Architecture calls */
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#define SMC_ENTITY_CPU 1U /* CPU Service calls */
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#define SMC_ENTITY_SIP 2U /* SIP Service calls */
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#define SMC_ENTITY_OEM 3U /* OEM Service calls */
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#define SMC_ENTITY_STD 4U /* Standard Service calls */
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#define SMC_ENTITY_RESERVED 5U /* Reserved for future use */
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#define SMC_ENTITY_TRUSTED_APP 48U /* Trusted Application calls */
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#define SMC_ENTITY_TRUSTED_OS 50U /* Trusted OS calls */
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#define SMC_ENTITY_LOGGING 51U /* Used for secure -> nonsecure logging */
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#define SMC_ENTITY_SECURE_MONITOR 60U /* Trusted OS calls internal to secure monitor */
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/* FC = Fast call, YC = Yielding call */
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#define SMC_YC_RESTART_LAST SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0U)
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#define SMC_YC_NOP SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1U)
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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_YC_NS_RETURN SMC_YIELDCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0U)
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#define SMC_FC_RESERVED SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 0U)
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#define SMC_FC_FIQ_EXIT SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 1U)
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#define SMC_FC_REQUEST_FIQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 2U)
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#define SMC_FC_GET_NEXT_IRQ SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 3U)
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#define SMC_FC_FIQ_ENTER SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 4U)
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#define SMC_FC64_SET_FIQ_HANDLER SMC_FASTCALL64_NR(SMC_ENTITY_SECURE_MONITOR, 5U)
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#define SMC_FC64_GET_FIQ_REGS SMC_FASTCALL64_NR (SMC_ENTITY_SECURE_MONITOR, 6U)
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#define SMC_FC_CPU_SUSPEND SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 7U)
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#define SMC_FC_CPU_RESUME SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 8U)
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#define SMC_FC_AARCH_SWITCH SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 9U)
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#define SMC_FC_GET_VERSION_STR SMC_FASTCALL_NR (SMC_ENTITY_SECURE_MONITOR, 10U)
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/* Trusted OS entity calls */
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#define SMC_YC_VIRTIO_GET_DESCR SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 20U)
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#define SMC_YC_VIRTIO_START SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 21U)
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#define SMC_YC_VIRTIO_STOP SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 22U)
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#define SMC_YC_VDEV_RESET SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 23U)
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#define SMC_YC_VDEV_KICK_VQ SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 24U)
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#define SMC_YC_SET_ROT_PARAMS SMC_YIELDCALL_NR(SMC_ENTITY_TRUSTED_OS, 65535U)
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/*
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* Standard Trusted OS Function IDs that fall under Trusted OS call range
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* according to SMC calling convention
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*/
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#define SMC_FC64_GET_UUID SMC_FASTCALL64_NR(63U, 0xFF01U) /* Implementation UID */
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#define SMC_FC_GET_UUID SMC_FASTCALL_NR(63U, 0xFF01U) /* Implementation.UID */
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#endif /* SMCALL_H */
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