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50 lines
1.3 KiB
50 lines
1.3 KiB
// 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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