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2f37046524
Due to differences in the bitfields of the SMC IDs, it is not possible to support SMCCC 1.X and 2.0 at the same time. The behaviour of `SMCCC_MAJOR_VERSION` has changed. Now, it is a build option that specifies the major version of the SMCCC that the Trusted Firmware supports. The only two allowed values are 1 and 2, and it defaults to 1. The value of `SMCCC_MINOR_VERSION` is derived from it. Note: Support for SMCCC v2.0 is an experimental feature to enable prototyping of secure partition specifications. Support for this convention is disabled by default and could be removed without notice. Change-Id: I88abf9ccf08e9c66a13ce55c890edea54d9f16a7 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
/*
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* Copyright (c) 2016-2018, ARM Limited and Contributors. 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 SMCCC_V2_H
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#define SMCCC_V2_H
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#ifndef __SMCCC_H__
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#error "This file must only be included from smccc.h"
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#endif
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/*******************************************************************************
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* Bit definitions inside the function id as per the SMC calling convention
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******************************************************************************/
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#define FUNCID_TYPE_SHIFT U(31)
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#define FUNCID_TYPE_MASK U(0x1)
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#define FUNCID_TYPE_WIDTH U(1)
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#define FUNCID_CC_SHIFT U(30)
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#define FUNCID_CC_MASK U(0x1)
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#define FUNCID_CC_WIDTH U(1)
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#define FUNCID_NAMESPACE_SHIFT U(28)
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#define FUNCID_NAMESPACE_MASK U(0x3)
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#define FUNCID_NAMESPACE_WIDTH U(2)
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#define FUNCID_OEN_SHIFT U(24)
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#define FUNCID_OEN_MASK U(0xf)
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#define FUNCID_OEN_WIDTH U(4)
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#define FUNCID_NUM_SHIFT U(0)
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#define FUNCID_NUM_MASK U(0xffff)
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#define FUNCID_NUM_WIDTH U(16)
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#define GET_SMC_TYPE(id) (((id) >> FUNCID_TYPE_SHIFT) & \
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FUNCID_TYPE_MASK)
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#define GET_SMC_CC(id) (((id) >> FUNCID_CC_SHIFT) & \
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FUNCID_CC_MASK)
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#define GET_SMC_NAMESPACE(id) (((id) >> FUNCID_NAMESPACE_SHIFT) & \
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FUNCID_NAMESPACE_MASK)
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#define GET_SMC_OEN(id) (((id) >> FUNCID_OEN_SHIFT) & \
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FUNCID_OEN_MASK)
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/*******************************************************************************
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* Owning entity number definitions inside the function id as per the SMC
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* calling convention
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******************************************************************************/
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#define OEN_ARM_START U(0)
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#define OEN_ARM_END U(0)
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#define OEN_CPU_START U(1)
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#define OEN_CPU_END U(1)
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#define OEN_SIP_START U(2)
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#define OEN_SIP_END U(2)
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#define OEN_OEM_START U(3)
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#define OEN_OEM_END U(3)
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#define OEN_STD_START U(4) /* Standard Service Calls */
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#define OEN_STD_END U(4)
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#define OEN_STD_HYP_START U(5) /* Standard Hypervisor Service calls */
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#define OEN_STD_HYP_END U(5)
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#define OEN_VEN_HYP_START U(6) /* Vendor Hypervisor Service calls */
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#define OEN_VEN_HYP_END U(6)
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#define OEN_LIMIT U(16)
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/*******************************************************************************
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* Service namespaces as per the SMC Calling Convention v2.X
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******************************************************************************/
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#define FUNCID_NAMESPACE_START U(0)
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#define FUNCID_NAMESPACE_COMPAT U(0)
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#define FUNCID_NAMESPACE_VENDOR U(1)
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#define FUNCID_NAMESPACE_SPRT U(2)
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#define FUNCID_NAMESPACE_SPCI U(3)
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#define FUNCID_NAMESPACE_LIMIT U(4)
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/* Flags and error codes */
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#define SMC_64 U(1)
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#define SMC_32 U(0)
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#define SMC_TYPE_FAST ULL(1)
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#define SMC_OK ULL(0)
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#define SMC_UNK -1
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#endif /* SMCCC_V2_H */
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