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Event log for TPM2.0 #4

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merged 2 commits into from Sep 25, 2023
Merged

Event log for TPM2.0 #4

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6efb4aa
x86/tpm.c: implement event log for TPM2.0
SergiiDmytruk Jun 30, 2023
2c3b4da
x86/tpm.c: rename TPM-specific functions
SergiiDmytruk Jul 18, 2023
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33 changes: 33 additions & 0 deletions xen/arch/x86/include/asm/intel_txt.h
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Expand Up @@ -215,6 +215,39 @@ struct txt_sinit_mle_data {
/* Ext Data Elements */
} __packed;

/* Types of extended data. */
#define TXT_HEAP_EXTDATA_TYPE_END 0
#define TXT_HEAP_EXTDATA_TYPE_BIOS_SPEC_VER 1
#define TXT_HEAP_EXTDATA_TYPE_ACM 2
#define TXT_HEAP_EXTDATA_TYPE_STM 3
#define TXT_HEAP_EXTDATA_TYPE_CUSTOM 4
#define TXT_HEAP_EXTDATA_TYPE_MADT 6
#define TXT_HEAP_EXTDATA_TYPE_EVENT_LOG_POINTER2_1 8
#define TXT_HEAP_EXTDATA_TYPE_MCFG 9
#define TXT_HEAP_EXTDATA_TYPE_TPR_REQ 13
#define TXT_HEAP_EXTDATA_TYPE_DTPR 14
#define TXT_HEAP_EXTDATA_TYPE_CEDT 15

/*
* Self-describing data structure that is used for extensions to TXT heap
* tables.
*/
struct txt_ext_data_element {
uint32_t type; /* One of TXT_HEAP_EXTDATA_TYPE_*. */
uint32_t size;
uint8_t data[0]; /* size bytes. */
} __packed;

/*
* Extended data describing TPM 2.0 log.
*/
struct heap_event_log_pointer_element2_1 {
uint64_t physical_address;
uint32_t allocated_event_container_size;
uint32_t first_record_offset;
uint32_t next_record_offset;
} __packed;

/*
* Functions to extract data from the Intel TXT Heap Memory. The layout
* of the heap is as follows:
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