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tpm_ppi.h (1052B)

      1 /*
      2  * TPM Physical Presence Interface
      3  *
      4  * Copyright (C) 2018 IBM Corporation
      5  *
      6  * Authors:
      7  *  Stefan Berger    <stefanb@us.ibm.com>
      8  *
      9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
     10  * See the COPYING file in the top-level directory.
     11  */
     12 #ifndef TPM_TPM_PPI_H
     13 #define TPM_TPM_PPI_H
     14 
     15 #include "exec/memory.h"
     16 
     17 typedef struct TPMPPI {
     18     MemoryRegion ram;
     19     uint8_t *buf;
     20 } TPMPPI;
     21 
     22 /**
     23  * tpm_ppi_init:
     24  * @tpmppi: a TPMPPI
     25  * @m: the address-space / MemoryRegion to use
     26  * @addr: the address of the PPI region
     27  * @obj: the owner object
     28  *
     29  * Register the TPM PPI memory region at @addr on the given address
     30  * space for the object @obj.
     31  **/
     32 void tpm_ppi_init(TPMPPI *tpmppi, MemoryRegion *m,
     33                   hwaddr addr, Object *obj);
     34 
     35 /**
     36  * tpm_ppi_reset:
     37  * @tpmppi: a TPMPPI
     38  *
     39  * Function to call on machine reset. It will check if the "Memory
     40  * overwrite" variable is set, and perform a memory clear on volatile
     41  * memory if requested.
     42  **/
     43 void tpm_ppi_reset(TPMPPI *tpmppi);
     44 
     45 #endif /* TPM_TPM_PPI_H */