| Marc Bonnici | 758bd24 | 2021-12-19 21:37:50 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017-2022, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #ifndef SPM_COMMON_H |
| 8 | #define SPM_COMMON_H |
| 9 | |
| 10 | #include <context.h> |
| 11 | |
| 12 | /******************************************************************************* |
| 13 | * Constants that allow assembler code to preserve callee-saved registers of the |
| 14 | * C runtime context while performing a security state switch. |
| 15 | ******************************************************************************/ |
| 16 | #define SP_C_RT_CTX_X19 0x0 |
| 17 | #define SP_C_RT_CTX_X20 0x8 |
| 18 | #define SP_C_RT_CTX_X21 0x10 |
| 19 | #define SP_C_RT_CTX_X22 0x18 |
| 20 | #define SP_C_RT_CTX_X23 0x20 |
| 21 | #define SP_C_RT_CTX_X24 0x28 |
| 22 | #define SP_C_RT_CTX_X25 0x30 |
| 23 | #define SP_C_RT_CTX_X26 0x38 |
| 24 | #define SP_C_RT_CTX_X27 0x40 |
| 25 | #define SP_C_RT_CTX_X28 0x48 |
| 26 | #define SP_C_RT_CTX_X29 0x50 |
| 27 | #define SP_C_RT_CTX_X30 0x58 |
| 28 | |
| 29 | #define SP_C_RT_CTX_SIZE 0x60 |
| 30 | #define SP_C_RT_CTX_ENTRIES (SP_C_RT_CTX_SIZE >> DWORD_SHIFT) |
| 31 | |
| 32 | #ifndef __ASSEMBLER__ |
| 33 | |
| 34 | #include <stdint.h> |
| 35 | |
| 36 | /* Assembly helpers */ |
| 37 | uint64_t spm_secure_partition_enter(uint64_t *c_rt_ctx); |
| 38 | void __dead2 spm_secure_partition_exit(uint64_t c_rt_ctx, uint64_t ret); |
| 39 | |
| 40 | #endif /* __ASSEMBLER__ */ |
| 41 | |
| 42 | #endif /* SPM_COMMON_H */ |