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5dde96b024
The DRTM 1.0 spec defines an additional field in the DLME header for an optional region in the DLME to hold ACPI tables. Signed-off-by: Stuart Yoder <stuart.yoder@arm.com> Change-Id: Idba7fa6bd0fb4ef2bdffc24f4588720e1661e58c
113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/*
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* Copyright (c) 2022-2024 Arm Limited. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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*/
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#ifndef DRTM_MAIN_H
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#define DRTM_MAIN_H
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#include <stdint.h>
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#include <assert.h>
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#include <lib/smccc.h>
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#include "drtm_dma_prot.h"
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#define ALIGNED_UP(x, a) __extension__ ({ \
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__typeof__(a) _a = (a); \
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__typeof__(a) _one = 1; \
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assert(IS_POWER_OF_TWO(_a)); \
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((x) + (_a - _one)) & ~(_a - _one); \
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})
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#define ALIGNED_DOWN(x, a) __extension__ ({ \
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__typeof__(a) _a = (a); \
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__typeof__(a) _one = 1; \
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assert(IS_POWER_OF_TWO(_a)); \
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(x) & ~(_a - _one); \
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})
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#define DRTM_PAGE_SIZE (4 * (1 << 10))
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#define DRTM_PAGE_SIZE_STR "4-KiB"
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#define DL_ARGS_GET_DMA_PROT_TYPE(a) (((a)->features >> 3) & 0x7U)
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#define DL_ARGS_GET_PCR_SCHEMA(a) (((a)->features >> 1) & 0x3U)
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#define DL_ARGS_GET_DLME_ENTRY_POINT(a) \
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(((a)->dlme_paddr + (a)->dlme_img_off + (a)->dlme_img_ep_off))
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/*
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* Range(Min/Max) of DRTM parameter structure versions supported
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*/
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#define ARM_DRTM_PARAMS_MIN_VERSION U(1)
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#define ARM_DRTM_PARAMS_MAX_VERSION U(1)
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enum drtm_dlme_el {
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DLME_AT_EL1 = MODE_EL1,
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DLME_AT_EL2 = MODE_EL2
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};
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enum drtm_retc {
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SUCCESS = SMC_OK,
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NOT_SUPPORTED = SMC_UNK,
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INVALID_PARAMETERS = -2,
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DENIED = -3,
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NOT_FOUND = -4,
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INTERNAL_ERROR = -5,
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MEM_PROTECT_INVALID = -6,
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COPROCESSOR_ERROR = -7,
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OUT_OF_RESOURCE = -8,
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INVALID_DATA = -9,
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SECONDARY_PE_NOT_OFF = -10,
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ALREADY_CLOSED = -11,
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TPM_ERROR = -12
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};
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typedef struct {
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uint64_t tpm_features;
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uint64_t minimum_memory_requirement;
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uint64_t dma_prot_features;
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uint64_t boot_pe_id;
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uint64_t tcb_hash_features;
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} drtm_features_t;
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struct __packed drtm_dl_args_v1 {
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uint16_t version; /* Must be 1. */
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uint8_t __res[2];
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uint32_t features;
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uint64_t dlme_paddr;
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uint64_t dlme_size;
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uint64_t dlme_img_off;
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uint64_t dlme_img_ep_off;
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uint64_t dlme_img_size;
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uint64_t dlme_data_off;
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uint64_t dce_nwd_paddr;
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uint64_t dce_nwd_size;
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drtm_dl_dma_prot_args_v1_t dma_prot_args;
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} __aligned(__alignof(uint16_t /* First member's type, `uint16_t version' */));
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struct __packed dlme_data_header_v1 {
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uint16_t version; /* Must be 1. */
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uint16_t this_hdr_size;
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uint8_t __res[4];
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uint64_t dlme_data_size;
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uint64_t dlme_prot_regions_size;
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uint64_t dlme_addr_map_size;
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uint64_t dlme_tpm_log_size;
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uint64_t dlme_tcb_hashes_table_size;
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uint64_t dlme_acpi_tables_region_size;
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uint64_t dlme_impdef_region_size;
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} __aligned(__alignof(uint16_t /* First member's type, `uint16_t version'. */));
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typedef struct dlme_data_header_v1 struct_dlme_data_header;
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drtm_memory_region_descriptor_table_t *drtm_build_address_map(void);
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uint64_t drtm_get_address_map_size(void);
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/*
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* Version-independent type. May be used to avoid excessive line of code
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* changes when migrating to new struct versions.
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*/
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typedef struct drtm_dl_args_v1 struct_drtm_dl_args;
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#endif /* DRTM_MAIN_H */
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