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Diffstat (limited to '')
| -rw-r--r-- | include/plat/arm/common/arm_spm_def.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/include/plat/arm/common/arm_spm_def.h b/include/plat/arm/common/arm_spm_def.h new file mode 100644 index 0000000..c43583d --- /dev/null +++ b/include/plat/arm/common/arm_spm_def.h @@ -0,0 +1,103 @@ +/* + * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#ifndef ARM_SPM_DEF_H +#define ARM_SPM_DEF_H + +#include <lib/utils_def.h> +#include <lib/xlat_tables/xlat_tables_defs.h> + +/* + * If BL31 is placed in DRAM, place the Secure Partition in DRAM right after the + * region used by BL31. If BL31 it is placed in SRAM, put the Secure Partition + * at the base of DRAM. + */ +#define ARM_SP_IMAGE_BASE BL32_BASE +#define ARM_SP_IMAGE_LIMIT BL32_LIMIT +/* The maximum size of the S-EL0 payload can be 3MB */ +#define ARM_SP_IMAGE_SIZE ULL(0x300000) + +#ifdef IMAGE_BL2 +/* SPM Payload memory. Mapped as RW in BL2. */ +#define ARM_SP_IMAGE_MMAP MAP_REGION_FLAT( \ + ARM_SP_IMAGE_BASE, \ + ARM_SP_IMAGE_SIZE, \ + MT_MEMORY | MT_RW | MT_SECURE) +#endif + +#ifdef IMAGE_BL31 +/* SPM Payload memory. Mapped as code in S-EL1 */ +#define ARM_SP_IMAGE_MMAP MAP_REGION2( \ + ARM_SP_IMAGE_BASE, \ + ARM_SP_IMAGE_BASE, \ + ARM_SP_IMAGE_SIZE, \ + MT_CODE | MT_SECURE | MT_USER, \ + PAGE_SIZE) +#endif + +/* + * Memory shared between EL3 and S-EL0. It is used by EL3 to push data into + * S-EL0, so it is mapped with RW permission from EL3 and with RO permission + * from S-EL0. Placed after SPM Payload memory. + */ +#define PLAT_SPM_BUF_BASE (ARM_SP_IMAGE_BASE + ARM_SP_IMAGE_SIZE) +#define PLAT_SPM_BUF_SIZE ULL(0x100000) + +#define ARM_SPM_BUF_EL3_MMAP MAP_REGION_FLAT( \ + PLAT_SPM_BUF_BASE, \ + PLAT_SPM_BUF_SIZE, \ + MT_RW_DATA | MT_SECURE) +#define ARM_SPM_BUF_EL0_MMAP MAP_REGION2( \ + PLAT_SPM_BUF_BASE, \ + PLAT_SPM_BUF_BASE, \ + PLAT_SPM_BUF_SIZE, \ + MT_RO_DATA | MT_SECURE | MT_USER,\ + PAGE_SIZE) + +/* + * Memory shared between Normal world and S-EL0 for passing data during service + * requests. Mapped as RW and NS. Placed after the shared memory between EL3 and + * S-EL0. + */ +#define PLAT_SP_IMAGE_NS_BUF_BASE (PLAT_SPM_BUF_BASE + PLAT_SPM_BUF_SIZE) +#define PLAT_SP_IMAGE_NS_BUF_SIZE ULL(0x10000) +#define ARM_SP_IMAGE_NS_BUF_MMAP MAP_REGION2( \ + PLAT_SP_IMAGE_NS_BUF_BASE, \ + PLAT_SP_IMAGE_NS_BUF_BASE, \ + PLAT_SP_IMAGE_NS_BUF_SIZE, \ + MT_RW_DATA | MT_NS | MT_USER, \ + PAGE_SIZE) + +/* + * RW memory, which uses the remaining Trusted DRAM. Placed after the memory + * shared between Secure and Non-secure worlds, or after the platform specific + * buffers, if defined. First there is the stack memory for all CPUs and then + * there is the common heap memory. Both are mapped with RW permissions. + */ +#define PLAT_SP_IMAGE_STACK_BASE PLAT_ARM_SP_IMAGE_STACK_BASE +#define PLAT_SP_IMAGE_STACK_PCPU_SIZE ULL(0x2000) +#define ARM_SP_IMAGE_STACK_TOTAL_SIZE (PLATFORM_CORE_COUNT * \ + PLAT_SP_IMAGE_STACK_PCPU_SIZE) + +#define ARM_SP_IMAGE_HEAP_BASE (PLAT_SP_IMAGE_STACK_BASE + \ + ARM_SP_IMAGE_STACK_TOTAL_SIZE) +#define ARM_SP_IMAGE_HEAP_SIZE (ARM_SP_IMAGE_LIMIT - ARM_SP_IMAGE_HEAP_BASE) + +#define ARM_SP_IMAGE_RW_MMAP MAP_REGION2( \ + PLAT_SP_IMAGE_STACK_BASE, \ + PLAT_SP_IMAGE_STACK_BASE, \ + (ARM_SP_IMAGE_LIMIT - \ + PLAT_SP_IMAGE_STACK_BASE), \ + MT_RW_DATA | MT_SECURE | MT_USER,\ + PAGE_SIZE) + +/* Total number of memory regions with distinct properties */ +#define ARM_SP_IMAGE_NUM_MEM_REGIONS 6 + +/* Cookies passed to the Secure Partition at boot. Not used by ARM platforms. */ +#define PLAT_SPM_COOKIE_0 ULL(0) +#define PLAT_SPM_COOKIE_1 ULL(0) + +#endif /* ARM_SPM_DEF_H */ |