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b61d94a1a2
In preparation for adding the EL3 SPMC configuration as defined in the FF-A specification, restructure the existing SPM_MM code. With this restructuring of the code, the 'spm_mm' directory is renamed as 'spm' and the code inside has been split into two sub-directories named 'common' and 'spm_mm'. The code in 'spm_mm' directory contains the code that implements the MM interface. In subsequent patches, the 'spmc' directory will be introduced under the 'spm' directory providing the code that implements the 'FF-A' interface. Currently the common functionality for S-EL1 partitions is limited to assembler functions to enter and exit an SP synchronously. Signed-off-by: Marc Bonnici <marc.bonnici@arm.com> Change-Id: I37739b9b53bc68e151ab5c1c0c6a15b3ee362241
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
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* Copyright (c) 2017-2022, 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 SPM_COMMON_H
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#define SPM_COMMON_H
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#include <context.h>
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/*******************************************************************************
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* Constants that allow assembler code to preserve callee-saved registers of the
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* C runtime context while performing a security state switch.
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******************************************************************************/
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#define SP_C_RT_CTX_X19 0x0
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#define SP_C_RT_CTX_X20 0x8
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#define SP_C_RT_CTX_X21 0x10
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#define SP_C_RT_CTX_X22 0x18
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#define SP_C_RT_CTX_X23 0x20
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#define SP_C_RT_CTX_X24 0x28
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#define SP_C_RT_CTX_X25 0x30
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#define SP_C_RT_CTX_X26 0x38
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#define SP_C_RT_CTX_X27 0x40
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#define SP_C_RT_CTX_X28 0x48
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#define SP_C_RT_CTX_X29 0x50
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#define SP_C_RT_CTX_X30 0x58
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#define SP_C_RT_CTX_SIZE 0x60
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#define SP_C_RT_CTX_ENTRIES (SP_C_RT_CTX_SIZE >> DWORD_SHIFT)
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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/* Assembly helpers */
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uint64_t spm_secure_partition_enter(uint64_t *c_rt_ctx);
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void __dead2 spm_secure_partition_exit(uint64_t c_rt_ctx, uint64_t ret);
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#endif /* __ASSEMBLER__ */
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#endif /* SPM_COMMON_H */
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