50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
// This file was extracted from the TCG Published
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// Trusted Platform Module Library
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// Part 3: Commands
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// Family "2.0"
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// Level 00 Revision 01.16
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// October 30, 2014
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#include "InternalRoutines.h"
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#include "PCR_Reset_fp.h"
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//
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//
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// Error Returns Meaning
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//
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// TPM_RC_LOCALITY current command locality is not allowed to reset the PCR referenced
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// by pcrHandle
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//
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TPM_RC
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TPM2_PCR_Reset(
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PCR_Reset_In *in // IN: input parameter list
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)
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{
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TPM_RC result;
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// Input Validation
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// Check if the reset operation is allowed by the current command locality
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if(!PCRIsResetAllowed(in->pcrHandle))
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return TPM_RC_LOCALITY;
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// If PCR is state saved and we need to update orderlyState, check NV
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// availability
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if(PCRIsStateSaved(in->pcrHandle) && gp.orderlyState != SHUTDOWN_NONE)
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{
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result = NvIsAvailable();
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if(result != TPM_RC_SUCCESS)
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return result;
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g_clearOrderly = TRUE;
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}
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// Internal Data Update
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// Reset selected PCR in all banks to 0
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PCRSetValue(in->pcrHandle, 0);
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// Indicate that the PCR changed so that pcrCounter will be incremented if
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// necessary.
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PCRChanged(in->pcrHandle);
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return TPM_RC_SUCCESS;
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}
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