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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Common features for sandbox TPM1 and TPM2 implementations
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*
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* Copyright 2021 Google LLC
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*/
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#define LOG_CATEGORY UCLASS_TPM
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#include <common.h>
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#include <tpm-v1.h>
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#include <tpm-v2.h>
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#include <asm/unaligned.h>
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#include "sandbox_common.h"
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#define TPM_ERR_CODE_OFS (2 + 4) /* after tag and size */
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int sb_tpm_index_to_seq(u32 index)
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{
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index &= ~HR_NV_INDEX;
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switch (index) {
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case FIRMWARE_NV_INDEX:
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return NV_SEQ_FIRMWARE;
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case KERNEL_NV_INDEX:
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return NV_SEQ_KERNEL;
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case BACKUP_NV_INDEX:
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return NV_SEQ_BACKUP;
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case FWMP_NV_INDEX:
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return NV_SEQ_FWMP;
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case MRC_REC_HASH_NV_INDEX:
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return NV_SEQ_REC_HASH;
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case 0:
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return NV_SEQ_GLOBAL_LOCK;
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case TPM_NV_INDEX_LOCK:
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return NV_SEQ_ENABLE_LOCKING;
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}
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printf("Invalid nv index %#x\n", index);
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return -1;
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}
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void sb_tpm_read_data(const struct nvdata_state nvdata[NV_SEQ_COUNT],
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enum sandbox_nv_space seq, u8 *buf, int data_ofs,
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int length)
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{
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const struct nvdata_state *nvd = &nvdata[seq];
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if (!nvd->present)
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put_unaligned_be32(TPM_BADINDEX, buf + TPM_ERR_CODE_OFS);
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else if (length > nvd->length)
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put_unaligned_be32(TPM_BAD_DATASIZE, buf + TPM_ERR_CODE_OFS);
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else
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memcpy(buf + data_ofs, &nvd->data, length);
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}
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void sb_tpm_write_data(struct nvdata_state nvdata[NV_SEQ_COUNT],
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enum sandbox_nv_space seq, const u8 *buf, int data_ofs,
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int length)
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{
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struct nvdata_state *nvd = &nvdata[seq];
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if (length > nvd->length)
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log_err("Invalid length %x (max %x)\n", length, nvd->length);
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else
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memcpy(&nvdata[seq].data, buf + data_ofs, length);
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}
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void sb_tpm_define_data(struct nvdata_state nvdata[NV_SEQ_COUNT],
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enum sandbox_nv_space seq, int length)
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{
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struct nvdata_state *nvd = &nvdata[seq];
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if (length > NV_DATA_SIZE)
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log_err("Invalid length %x (max %x)\n", length, NV_DATA_SIZE);
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nvd->length = length;
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nvd->present = true;
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}
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