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Diffstat (limited to '')
| -rw-r--r-- | include/services/spm_mm_svc.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/include/services/spm_mm_svc.h b/include/services/spm_mm_svc.h new file mode 100644 index 0000000..3148beb --- /dev/null +++ b/include/services/spm_mm_svc.h @@ -0,0 +1,114 @@ +/* + * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef SPM_MM_SVC_H +#define SPM_MM_SVC_H + +#include <lib/utils_def.h> + +/* + * The MM_VERSION_XXX definitions are used when responding to the + * MM_VERSION_AARCH32 service request. The version returned is different between + * this request and the SPM_MM_VERSION_AARCH32 request - both have been retained + * for compatibility. + */ +#define MM_VERSION_MAJOR U(1) +#define MM_VERSION_MAJOR_SHIFT 16 +#define MM_VERSION_MAJOR_MASK U(0x7FFF) +#define MM_VERSION_MINOR U(0) +#define MM_VERSION_MINOR_SHIFT 0 +#define MM_VERSION_MINOR_MASK U(0xFFFF) +#define MM_VERSION_FORM(major, minor) ((major << MM_VERSION_MAJOR_SHIFT) | \ + (minor)) +#define MM_VERSION_COMPILED MM_VERSION_FORM(MM_VERSION_MAJOR, \ + MM_VERSION_MINOR) + +#define SPM_MM_VERSION_MAJOR U(0) +#define SPM_MM_VERSION_MAJOR_SHIFT 16 +#define SPM_MM_VERSION_MAJOR_MASK U(0x7FFF) +#define SPM_MM_VERSION_MINOR U(1) +#define SPM_MM_VERSION_MINOR_SHIFT 0 +#define SPM_MM_VERSION_MINOR_MASK U(0xFFFF) +#define SPM_MM_VERSION_FORM(major, minor) ((major << \ + SPM_MM_VERSION_MAJOR_SHIFT) | \ + (minor)) +#define SPM_MM_VERSION_COMPILED SPM_MM_VERSION_FORM(SPM_MM_VERSION_MAJOR, \ + SPM_MM_VERSION_MINOR) + +/* These macros are used to identify SPM-MM calls using the SMC function ID */ +#define SPM_MM_FID_MASK U(0xffff) +#define SPM_MM_FID_MIN_VALUE U(0x40) +#define SPM_MM_FID_MAX_VALUE U(0x7f) +#define is_spm_mm_fid(_fid) \ + ((((_fid) & SPM_MM_FID_MASK) >= SPM_MM_FID_MIN_VALUE) && \ + (((_fid) & SPM_MM_FID_MASK) <= SPM_MM_FID_MAX_VALUE)) + +/* + * SMC IDs defined in [1] for accessing MM services from the Non-secure world. + * These FIDs occupy the range 0x40 - 0x5f. + * [1] DEN0060A_ARM_MM_Interface_Specification.pdf + */ +#define MM_VERSION_AARCH32 U(0x84000040) +#define MM_COMMUNICATE_AARCH64 U(0xC4000041) +#define MM_COMMUNICATE_AARCH32 U(0x84000041) + +/* + * SMC IDs defined for accessing services implemented by the Secure Partition + * Manager from the Secure Partition(s). These services enable a partition to + * handle delegated events and request privileged operations from the manager. + * They occupy the range 0x60-0x7f. + */ +#define SPM_MM_VERSION_AARCH32 U(0x84000060) +#define MM_SP_EVENT_COMPLETE_AARCH64 U(0xC4000061) +#define MM_SP_MEMORY_ATTRIBUTES_GET_AARCH64 U(0xC4000064) +#define MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64 U(0xC4000065) + +/* + * Macros used by MM_SP_MEMORY_ATTRIBUTES_SET_AARCH64. + */ + +#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_NOACCESS U(0) +#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_RW U(1) +/* Value U(2) is reserved. */ +#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_RO U(3) +#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_MASK U(3) +#define MM_SP_MEMORY_ATTRIBUTES_ACCESS_SHIFT 0 + +#define MM_SP_MEMORY_ATTRIBUTES_EXEC (U(0) << 2) +#define MM_SP_MEMORY_ATTRIBUTES_NON_EXEC (U(1) << 2) + + +/* SPM error codes. */ +#define SPM_MM_SUCCESS 0 +#define SPM_MM_NOT_SUPPORTED -1 +#define SPM_MM_INVALID_PARAMETER -2 +#define SPM_MM_DENIED -3 +#define SPM_MM_NO_MEMORY -5 + +#ifndef __ASSEMBLER__ + +#include <stdint.h> + +int32_t spm_mm_setup(void); + +uint64_t spm_mm_smc_handler(uint32_t smc_fid, + uint64_t x1, + uint64_t x2, + uint64_t x3, + uint64_t x4, + void *cookie, + void *handle, + uint64_t flags); + +/* Helper to enter a secure partition */ +uint64_t spm_mm_sp_call(uint32_t smc_fid, + uint64_t x1, + uint64_t x2, + uint64_t x3); + +#endif /* __ASSEMBLER__ */ + +#endif /* SPM_MM_SVC_H */ |