Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) What:		/sys/class/tpm/tpmX/device/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) Date:		April 2005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) KernelVersion:	2.6.12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) Description:	The device/ directory under a specific TPM instance exposes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 		the properties of that TPM chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) What:		/sys/class/tpm/tpmX/device/active
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) Date:		April 2006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) KernelVersion:	2.6.17
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) Description:	The "active" property prints a '1' if the TPM chip is accepting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 		commands. An inactive TPM chip still contains all the state of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 		an active chip (Storage Root Key, NVRAM, etc), and can be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 		visible to the OS, but will only accept a restricted set of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 		commands. See the TPM Main Specification part 2, Structures,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 		section 17 for more information on which commands are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 		available.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) What:		/sys/class/tpm/tpmX/device/cancel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) Date:		June 2005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) KernelVersion:	2.6.13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) Description:	The "cancel" property allows you to cancel the currently
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 		pending TPM command. Writing any value to cancel will call the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 		TPM vendor specific cancel operation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) What:		/sys/class/tpm/tpmX/device/caps
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) Date:		April 2005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) KernelVersion:	2.6.12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) Description:	The "caps" property contains TPM manufacturer and version info.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 		Example output::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 		  Manufacturer: 0x53544d20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 		  TCG version: 1.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 		  Firmware version: 8.16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 		Manufacturer is a hex dump of the 4 byte manufacturer info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 		space in a TPM. TCG version shows the TCG TPM spec level that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		the chip supports. Firmware version is that of the chip and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		is manufacturer specific.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) What:		/sys/class/tpm/tpmX/device/durations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) Date:		March 2011
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) KernelVersion:	3.1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) Description:	The "durations" property shows the 3 vendor-specific values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 		used to wait for a short, medium and long TPM command. All
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		TPM commands are categorized as short, medium or long in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		execution time, so that the driver doesn't have to wait
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 		any longer than necessary before starting to poll for a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 		result.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		Example output::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 		  3015000 4508000 180995000 [original]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		Here the short, medium and long durations are displayed in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		usecs. "[original]" indicates that the values are displayed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		unmodified from when they were queried from the chip.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 		Durations can be modified in the case where a buggy chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 		reports them in msec instead of usec and they need to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		scaled to be displayed in usecs. In this case "[adjusted]"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		will be displayed in place of "[original]".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) What:		/sys/class/tpm/tpmX/device/enabled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) Date:		April 2006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) KernelVersion:	2.6.17
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) Description:	The "enabled" property prints a '1' if the TPM chip is enabled,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		meaning that it should be visible to the OS. This property
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		may be visible but produce a '0' after some operation that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		disables the TPM.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) What:		/sys/class/tpm/tpmX/device/owned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) Date:		April 2006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) KernelVersion:	2.6.17
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) Description:	The "owned" property produces a '1' if the TPM_TakeOwnership
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		ordinal has been executed successfully in the chip. A '0'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 		indicates that ownership hasn't been taken.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) What:		/sys/class/tpm/tpmX/device/pcrs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) Date:		April 2005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) KernelVersion:	2.6.12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) Description:	The "pcrs" property will dump the current value of all Platform
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		Configuration Registers in the TPM. Note that since these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		values may be constantly changing, the output is only valid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		for a snapshot in time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		Example output::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		  PCR-00: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		  PCR-01: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		  PCR-02: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		  PCR-03: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		  PCR-04: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		  ...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		The number of PCRs and hex bytes needed to represent a PCR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		value will vary depending on TPM chip version. For TPM 1.1 and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 		1.2 chips, PCRs represent SHA-1 hashes, which are 20 bytes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		long. Use the "caps" property to determine TPM version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) What:		/sys/class/tpm/tpmX/device/pubek
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) Date:		April 2005
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) KernelVersion:	2.6.12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) Description:	The "pubek" property will return the TPM's public endorsement
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		key if possible. If the TPM has had ownership established and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		is version 1.2, the pubek will not be available without the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		owner's authorization. Since the TPM driver doesn't store any
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		secrets, it can't authorize its own request for the pubek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		making it unaccessible. The public endorsement key is gener-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		ated at TPM manufacture time and exists for the life of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		chip.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 		Example output::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		  Algorithm: 00 00 00 01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		  Encscheme: 00 03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 		  Sigscheme: 00 01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		  Parameters: 00 00 08 00 00 00 00 02 00 00 00 00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		  Modulus length: 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		  Modulus:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		  B4 76 41 82 C9 20 2C 10 18 40 BC 8B E5 44 4C 6C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		  3A B2 92 0C A4 9B 2A 83 EB 5C 12 85 04 48 A0 B6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		  1E E4 81 84 CE B2 F2 45 1C F0 85 99 61 02 4D EB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		  86 C4 F7 F3 29 60 52 93 6B B2 E5 AB 8B A9 09 E3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		  D7 0E 7D CA 41 BF 43 07 65 86 3C 8C 13 7A D0 8B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		  82 5E 96 0B F8 1F 5F 34 06 DA A2 52 C1 A9 D5 26
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		  0F F4 04 4B D9 3F 2D F2 AC 2F 74 64 1F 8B CD 3E
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		  1E 30 38 6C 70 63 69 AB E2 50 DF 49 05 2E E1 8D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		  6F 78 44 DA 57 43 69 EE 76 6C 38 8A E9 8E A3 F0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		  A7 1F 3C A8 D0 12 15 3E CA 0E BD FA 24 CD 33 C6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		  47 AE A4 18 83 8E 22 39 75 93 86 E6 FD 66 48 B6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 		  10 AD 94 14 65 F9 6A 17 78 BD 16 53 84 30 BF 70
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		  E0 DC 65 FD 3C C6 B0 1E BF B9 C1 B5 6C EF B1 3A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		  F8 28 05 83 62 26 11 DC B4 6B 5A 97 FF 32 26 B6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		  F7 02 71 CF 15 AE 16 DD D1 C1 8E A8 CF 9B 50 7B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		  C3 91 FF 44 1E CF 7C 39 FE 17 77 21 20 BD CE 9B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		Possible values::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		  Algorithm:	TPM_ALG_RSA			(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		  Encscheme:	TPM_ES_RSAESPKCSv15		(2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 				TPM_ES_RSAESOAEP_SHA1_MGF1	(3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		  Sigscheme:	TPM_SS_NONE			(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		  Parameters, a byte string of 3 u32 values:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 			Key Length (bits):	00 00 08 00	(2048)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 			Num primes:		00 00 00 02	(2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			Exponent Size:		00 00 00 00	(0 means the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 								 default exp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		  Modulus Length: 256 (bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		  Modulus:	The 256 byte Endorsement Key modulus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) What:		/sys/class/tpm/tpmX/device/temp_deactivated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) Date:		April 2006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) KernelVersion:	2.6.17
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) Description:	The "temp_deactivated" property returns a '1' if the chip has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 		been temporarily deactivated, usually until the next power
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		cycle. Whether a warm boot (reboot) will clear a TPM chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		from a temp_deactivated state is platform specific.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) What:		/sys/class/tpm/tpmX/device/timeouts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) Date:		March 2011
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) KernelVersion:	3.1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) Description:	The "timeouts" property shows the 4 vendor-specific values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		for the TPM's interface spec timeouts. The use of these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		timeouts is defined by the TPM interface spec that the chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		conforms to.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		Example output::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		  750000 750000 750000 750000 [original]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		The four timeout values are shown in usecs, with a trailing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		"[original]" or "[adjusted]" depending on whether the values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		were scaled by the driver to be reported in usec from msecs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) What:		/sys/class/tpm/tpmX/tpm_version_major
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) Date:		October 2019
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) KernelVersion:	5.5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) Contact:	linux-integrity@vger.kernel.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) Description:	The "tpm_version_major" property shows the TCG spec major version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		implemented by the TPM device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		Example output::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		  2