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authorLinus Torvalds <torvalds@linux-foundation.org>2020-01-27 09:12:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-27 09:12:13 -0800
commit189fc98efe59b9b0a49a4f29ee3d91eeded4e4d4 (patch)
tree69755085fae1d38219c9fe087c8e0357352eb82d /Documentation
parentf11ba7de156558ac5e78e285dbf9e9af60ceb2a8 (diff)
parent7084eddf6be94e73f8298c1a28078b91536f2975 (diff)
downloadlinux-189fc98efe59b9b0a49a4f29ee3d91eeded4e4d4.tar.bz2
Merge tag 'tpmdd-next-20200122' of git://git.infradead.org/users/jjs/linux-tpmdd
Pull tpm updates from Jarkko Sakkinen: "This adds a new sysfs file for querying TPM major version, which can be used by the user space the TPM protocol used to communicate with the chip" * tag 'tpmdd-next-20200122' of git://git.infradead.org/users/jjs/linux-tpmdd: tpm: Add tpm_version_major sysfs file tpm: Update mailing list contact information in sysfs-class-tpm
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/stable/sysfs-class-tpm33
1 files changed, 22 insertions, 11 deletions
diff --git a/Documentation/ABI/stable/sysfs-class-tpm b/Documentation/ABI/stable/sysfs-class-tpm
index c0e23830f56a..58e94e7d55be 100644
--- a/Documentation/ABI/stable/sysfs-class-tpm
+++ b/Documentation/ABI/stable/sysfs-class-tpm
@@ -1,7 +1,7 @@
What: /sys/class/tpm/tpmX/device/
Date: April 2005
KernelVersion: 2.6.12
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The device/ directory under a specific TPM instance exposes
the properties of that TPM chip
@@ -9,7 +9,7 @@ Description: The device/ directory under a specific TPM instance exposes
What: /sys/class/tpm/tpmX/device/active
Date: April 2006
KernelVersion: 2.6.17
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "active" property prints a '1' if the TPM chip is accepting
commands. An inactive TPM chip still contains all the state of
an active chip (Storage Root Key, NVRAM, etc), and can be
@@ -21,7 +21,7 @@ Description: The "active" property prints a '1' if the TPM chip is accepting
What: /sys/class/tpm/tpmX/device/cancel
Date: June 2005
KernelVersion: 2.6.13
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "cancel" property allows you to cancel the currently
pending TPM command. Writing any value to cancel will call the
TPM vendor specific cancel operation.
@@ -29,7 +29,7 @@ Description: The "cancel" property allows you to cancel the currently
What: /sys/class/tpm/tpmX/device/caps
Date: April 2005
KernelVersion: 2.6.12
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "caps" property contains TPM manufacturer and version info.
Example output:
@@ -46,7 +46,7 @@ Description: The "caps" property contains TPM manufacturer and version info.
What: /sys/class/tpm/tpmX/device/durations
Date: March 2011
KernelVersion: 3.1
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "durations" property shows the 3 vendor-specific values
used to wait for a short, medium and long TPM command. All
TPM commands are categorized as short, medium or long in
@@ -69,7 +69,7 @@ Description: The "durations" property shows the 3 vendor-specific values
What: /sys/class/tpm/tpmX/device/enabled
Date: April 2006
KernelVersion: 2.6.17
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "enabled" property prints a '1' if the TPM chip is enabled,
meaning that it should be visible to the OS. This property
may be visible but produce a '0' after some operation that
@@ -78,7 +78,7 @@ Description: The "enabled" property prints a '1' if the TPM chip is enabled,
What: /sys/class/tpm/tpmX/device/owned
Date: April 2006
KernelVersion: 2.6.17
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "owned" property produces a '1' if the TPM_TakeOwnership
ordinal has been executed successfully in the chip. A '0'
indicates that ownership hasn't been taken.
@@ -86,7 +86,7 @@ Description: The "owned" property produces a '1' if the TPM_TakeOwnership
What: /sys/class/tpm/tpmX/device/pcrs
Date: April 2005
KernelVersion: 2.6.12
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "pcrs" property will dump the current value of all Platform
Configuration Registers in the TPM. Note that since these
values may be constantly changing, the output is only valid
@@ -109,7 +109,7 @@ Description: The "pcrs" property will dump the current value of all Platform
What: /sys/class/tpm/tpmX/device/pubek
Date: April 2005
KernelVersion: 2.6.12
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "pubek" property will return the TPM's public endorsement
key if possible. If the TPM has had ownership established and
is version 1.2, the pubek will not be available without the
@@ -161,7 +161,7 @@ Description: The "pubek" property will return the TPM's public endorsement
What: /sys/class/tpm/tpmX/device/temp_deactivated
Date: April 2006
KernelVersion: 2.6.17
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "temp_deactivated" property returns a '1' if the chip has
been temporarily deactivated, usually until the next power
cycle. Whether a warm boot (reboot) will clear a TPM chip
@@ -170,7 +170,7 @@ Description: The "temp_deactivated" property returns a '1' if the chip has
What: /sys/class/tpm/tpmX/device/timeouts
Date: March 2011
KernelVersion: 3.1
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "timeouts" property shows the 4 vendor-specific values
for the TPM's interface spec timeouts. The use of these
timeouts is defined by the TPM interface spec that the chip
@@ -183,3 +183,14 @@ Description: The "timeouts" property shows the 4 vendor-specific values
The four timeout values are shown in usecs, with a trailing
"[original]" or "[adjusted]" depending on whether the values
were scaled by the driver to be reported in usec from msecs.
+
+What: /sys/class/tpm/tpmX/tpm_version_major
+Date: October 2019
+KernelVersion: 5.5
+Contact: linux-integrity@vger.kernel.org
+Description: The "tpm_version_major" property shows the TCG spec major version
+ implemented by the TPM device.
+
+ Example output:
+
+ 2