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/*
* Copyright (c) 2022 Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef DRTM_MAIN_H
#define DRTM_MAIN_H
#include <stdint.h>
#include <assert.h>
#include <lib/smccc.h>
#include "drtm_dma_prot.h"
#define ALIGNED_UP(x, a) __extension__ ({ \
__typeof__(a) _a = (a); \
__typeof__(a) _one = 1; \
assert(IS_POWER_OF_TWO(_a)); \
((x) + (_a - _one)) & ~(_a - _one); \
})
#define ALIGNED_DOWN(x, a) __extension__ ({ \
__typeof__(a) _a = (a); \
__typeof__(a) _one = 1; \
assert(IS_POWER_OF_TWO(_a)); \
(x) & ~(_a - _one); \
})
#define DRTM_PAGE_SIZE (4 * (1 << 10))
#define DRTM_PAGE_SIZE_STR "4-KiB"
#define DL_ARGS_GET_DMA_PROT_TYPE(a) (((a)->features >> 3) & 0x7U)
#define DL_ARGS_GET_PCR_SCHEMA(a) (((a)->features >> 1) & 0x3U)
#define DL_ARGS_GET_DLME_ENTRY_POINT(a) \
(((a)->dlme_paddr + (a)->dlme_img_off + (a)->dlme_img_ep_off))
/*
* Range(Min/Max) of DRTM parameter structure versions supported
*/
#define ARM_DRTM_PARAMS_MIN_VERSION U(1)
#define ARM_DRTM_PARAMS_MAX_VERSION U(1)
enum drtm_dlme_el {
DLME_AT_EL1 = MODE_EL1,
DLME_AT_EL2 = MODE_EL2
};
enum drtm_retc {
SUCCESS = SMC_OK,
NOT_SUPPORTED = SMC_UNK,
INVALID_PARAMETERS = -2,
DENIED = -3,
NOT_FOUND = -4,
INTERNAL_ERROR = -5,
MEM_PROTECT_INVALID = -6,
};
typedef struct {
uint64_t tpm_features;
uint64_t minimum_memory_requirement;
uint64_t dma_prot_features;
uint64_t boot_pe_id;
uint64_t tcb_hash_features;
} drtm_features_t;
struct __packed drtm_dl_args_v1 {
uint16_t version; /* Must be 1. */
uint8_t __res[2];
uint32_t features;
uint64_t dlme_paddr;
uint64_t dlme_size;
uint64_t dlme_img_off;
uint64_t dlme_img_ep_off;
uint64_t dlme_img_size;
uint64_t dlme_data_off;
uint64_t dce_nwd_paddr;
uint64_t dce_nwd_size;
drtm_dl_dma_prot_args_v1_t dma_prot_args;
} __aligned(__alignof(uint16_t /* First member's type, `uint16_t version' */));
struct __packed dlme_data_header_v1 {
uint16_t version; /* Must be 1. */
uint16_t this_hdr_size;
uint8_t __res[4];
uint64_t dlme_data_size;
uint64_t dlme_prot_regions_size;
uint64_t dlme_addr_map_size;
uint64_t dlme_tpm_log_size;
uint64_t dlme_tcb_hashes_table_size;
uint64_t dlme_impdef_region_size;
} __aligned(__alignof(uint16_t /* First member's type, `uint16_t version'. */));
typedef struct dlme_data_header_v1 struct_dlme_data_header;
drtm_memory_region_descriptor_table_t *drtm_build_address_map(void);
uint64_t drtm_get_address_map_size(void);
/*
* Version-independent type. May be used to avoid excessive line of code
* changes when migrating to new struct versions.
*/
typedef struct drtm_dl_args_v1 struct_drtm_dl_args;
#endif /* DRTM_MAIN_H */
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