51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/* Copyright 2013-2017 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __TRUSTEDBOOT_H
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#define __TRUSTEDBOOT_H
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#include <platform.h>
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void trustedboot_init(void);
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/**
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* As defined in the TCG Platform Firmware Profile specification, the
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* digest of 0xFFFFFFFF or 0x00000000 must be extended in PCR[0-7] and
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* an EV_SEPARATOR event must be recorded in the event log for PCR[0-7]
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* prior to the first invocation of the first Ready to Boot call.
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*
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* This function must be called just before BOOTKERNEL is executed. Every call
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* to trustedboot_measure() will fail afterwards.
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*/
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int trustedboot_exit_boot_services(void);
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/**
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* trustedboot_measure - measure a resource
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* @id : resource id
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* @buf : data to be measured
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* @len : buf length
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*
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* This measures a resource downloaded from PNOR if trusted mode is on. That is,
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* an EV_ACTION event is recorded in the event log for the mapped PCR, and the
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* the sha1 and sha256 measurements are extended in the mapped PCR.
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*
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* For more information please refer to 'doc/stb.rst'
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*
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* returns: 0 or an error as defined in status_codes.h
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*/
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int trustedboot_measure(enum resource_id id, void *buf, size_t len);
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#endif /* __TRUSTEDBOOT_H */
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