mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-17 18:14:24 +00:00
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
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2017-2022, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef SPM_MM_PRIVATE_H
|
|
#define SPM_MM_PRIVATE_H
|
|
|
|
#include <context.h>
|
|
#include "spm_common.h"
|
|
|
|
/*******************************************************************************
|
|
* Constants that allow assembler code to preserve callee-saved registers of the
|
|
* C runtime context while performing a security state switch.
|
|
******************************************************************************/
|
|
#define SP_C_RT_CTX_X19 0x0
|
|
#define SP_C_RT_CTX_X20 0x8
|
|
#define SP_C_RT_CTX_X21 0x10
|
|
#define SP_C_RT_CTX_X22 0x18
|
|
#define SP_C_RT_CTX_X23 0x20
|
|
#define SP_C_RT_CTX_X24 0x28
|
|
#define SP_C_RT_CTX_X25 0x30
|
|
#define SP_C_RT_CTX_X26 0x38
|
|
#define SP_C_RT_CTX_X27 0x40
|
|
#define SP_C_RT_CTX_X28 0x48
|
|
#define SP_C_RT_CTX_X29 0x50
|
|
#define SP_C_RT_CTX_X30 0x58
|
|
|
|
#define SP_C_RT_CTX_SIZE 0x60
|
|
#define SP_C_RT_CTX_ENTRIES (SP_C_RT_CTX_SIZE >> DWORD_SHIFT)
|
|
|
|
#ifndef __ASSEMBLER__
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <lib/spinlock.h>
|
|
#include <lib/xlat_tables/xlat_tables_v2.h>
|
|
|
|
typedef enum sp_state {
|
|
SP_STATE_RESET = 0,
|
|
SP_STATE_IDLE,
|
|
SP_STATE_BUSY
|
|
} sp_state_t;
|
|
|
|
typedef struct sp_context {
|
|
uint64_t c_rt_ctx;
|
|
cpu_context_t cpu_ctx;
|
|
xlat_ctx_t *xlat_ctx_handle;
|
|
|
|
sp_state_t state;
|
|
spinlock_t state_lock;
|
|
} sp_context_t;
|
|
|
|
|
|
void spm_sp_setup(sp_context_t *sp_ctx);
|
|
|
|
xlat_ctx_t *spm_get_sp_xlat_context(void);
|
|
|
|
int32_t spm_memory_attributes_get_smc_handler(sp_context_t *sp_ctx,
|
|
uintptr_t base_va);
|
|
int spm_memory_attributes_set_smc_handler(sp_context_t *sp_ctx,
|
|
u_register_t page_address,
|
|
u_register_t pages_count,
|
|
u_register_t smc_attributes);
|
|
|
|
#endif /* __ASSEMBLER__ */
|
|
|
|
#endif /* SPM_MM_PRIVATE_H */
|