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Matthew Fioravante
d463e3c5a3
Add the code base for vtpm-stubdom to the stubdom heirarchy. Makefile changes in later patch. Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/*
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* Copyright (c) 2010-2012 United States Government, as represented by
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* the Secretary of Defense. All rights reserved.
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*
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* THIS SOFTWARE AND ITS DOCUMENTATION ARE PROVIDED AS IS AND WITHOUT
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* ANY EXPRESS OR IMPLIED WARRANTIES WHATSOEVER. ALL WARRANTIES
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* INCLUDING, BUT NOT LIMITED TO, PERFORMANCE, MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT ARE HEREBY
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* DISCLAIMED. USERS ASSUME THE ENTIRE RISK AND LIABILITY OF USING THE
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* SOFTWARE.
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*/
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#include "vtpm_pcrs.h"
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#include "vtpm_cmd.h"
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#include "tpm/tpm_data.h"
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#define PCR_VALUE tpmData.permanent.data.pcrValue
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static int write_pcr_direct(unsigned int pcrIndex, uint8_t* val) {
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if(pcrIndex > TPM_NUM_PCR) {
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return TPM_BADINDEX;
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}
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memcpy(&PCR_VALUE[pcrIndex], val, sizeof(TPM_PCRVALUE));
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return TPM_SUCCESS;
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}
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TPM_RESULT vtpm_initialize_hw_pcrs(struct tpmfront_dev* tpmfront_dev, unsigned long pcrs)
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{
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TPM_RESULT rc = TPM_SUCCESS;
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uint8_t digest[sizeof(TPM_PCRVALUE)];
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for(unsigned int i = 0; i < TPM_NUM_PCR; ++i) {
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if(pcrs & 1 << i) {
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if((rc = VTPM_PCRRead(tpmfront_dev, i, digest)) != TPM_SUCCESS) {
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error("TPM_PCRRead failed with error : %d", rc);
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return rc;
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}
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write_pcr_direct(i, digest);
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}
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}
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return rc;
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}
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