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https://github.com/ARM-software/arm-trusted-firmware.git
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d5dfdeb65f
NOTE: __ASSEMBLY__ macro is now deprecated in favor of __ASSEMBLER__. All common C compilers predefine a macro called __ASSEMBLER__ when preprocessing a .S file. There is no reason for TF-A to define it's own __ASSEMBLY__ macro for this purpose instead. To unify code with the export headers (which use __ASSEMBLER__ to avoid one extra dependency), let's deprecate __ASSEMBLY__ and switch the code base over to the predefined standard. Change-Id: Id7d0ec8cf330195da80499c68562b65cb5ab7417 Signed-off-by: Julius Werner <jwerner@chromium.org>
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/*
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* Copyright (c) 2017-2018, 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 SPM_PRIVATE_H
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#define SPM_PRIVATE_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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#include <lib/spinlock.h>
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#include <lib/xlat_tables/xlat_tables_v2.h>
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typedef enum sp_state {
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SP_STATE_RESET = 0,
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SP_STATE_IDLE,
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SP_STATE_BUSY
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} sp_state_t;
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typedef struct sp_context {
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uint64_t c_rt_ctx;
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cpu_context_t cpu_ctx;
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xlat_ctx_t *xlat_ctx_handle;
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sp_state_t state;
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spinlock_t state_lock;
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} sp_context_t;
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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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void spm_sp_setup(sp_context_t *sp_ctx);
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xlat_ctx_t *spm_get_sp_xlat_context(void);
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int32_t spm_memory_attributes_get_smc_handler(sp_context_t *sp_ctx,
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uintptr_t base_va);
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int spm_memory_attributes_set_smc_handler(sp_context_t *sp_ctx,
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u_register_t page_address,
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u_register_t pages_count,
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u_register_t smc_attributes);
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#endif /* __ASSEMBLER__ */
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#endif /* SPM_PRIVATE_H */
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