diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-class-tpm | 22 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt | 36 | ||||
| -rw-r--r-- | Documentation/security/keys.txt | 2 |
3 files changed, 47 insertions, 13 deletions
diff --git a/Documentation/ABI/stable/sysfs-class-tpm b/Documentation/ABI/stable/sysfs-class-tpm index a60b45e2493b..9f790eebb5d2 100644 --- a/Documentation/ABI/stable/sysfs-class-tpm +++ b/Documentation/ABI/stable/sysfs-class-tpm @@ -1,4 +1,4 @@ -What: /sys/class/misc/tpmX/device/ +What: /sys/class/tpm/tpmX/device/ Date: April 2005 KernelVersion: 2.6.12 Contact: tpmdd-devel@lists.sf.net @@ -6,7 +6,7 @@ Description: The device/ directory under a specific TPM instance exposes the properties of that TPM chip -What: /sys/class/misc/tpmX/device/active +What: /sys/class/tpm/tpmX/device/active Date: April 2006 KernelVersion: 2.6.17 Contact: tpmdd-devel@lists.sf.net @@ -18,7 +18,7 @@ Description: The "active" property prints a '1' if the TPM chip is accepting section 17 for more information on which commands are available. -What: /sys/class/misc/tpmX/device/cancel +What: /sys/class/tpm/tpmX/device/cancel Date: June 2005 KernelVersion: 2.6.13 Contact: tpmdd-devel@lists.sf.net @@ -26,7 +26,7 @@ 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. -What: /sys/class/misc/tpmX/device/caps +What: /sys/class/tpm/tpmX/device/caps Date: April 2005 KernelVersion: 2.6.12 Contact: tpmdd-devel@lists.sf.net @@ -43,7 +43,7 @@ Description: The "caps" property contains TPM manufacturer and version info. the chip supports. Firmware version is that of the chip and is manufacturer specific. -What: /sys/class/misc/tpmX/device/durations +What: /sys/class/tpm/tpmX/device/durations Date: March 2011 KernelVersion: 3.1 Contact: tpmdd-devel@lists.sf.net @@ -66,7 +66,7 @@ Description: The "durations" property shows the 3 vendor-specific values scaled to be displayed in usecs. In this case "[adjusted]" will be displayed in place of "[original]". -What: /sys/class/misc/tpmX/device/enabled +What: /sys/class/tpm/tpmX/device/enabled Date: April 2006 KernelVersion: 2.6.17 Contact: tpmdd-devel@lists.sf.net @@ -75,7 +75,7 @@ Description: The "enabled" property prints a '1' if the TPM chip is enabled, may be visible but produce a '0' after some operation that disables the TPM. -What: /sys/class/misc/tpmX/device/owned +What: /sys/class/tpm/tpmX/device/owned Date: April 2006 KernelVersion: 2.6.17 Contact: tpmdd-devel@lists.sf.net @@ -83,7 +83,7 @@ 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. -What: /sys/class/misc/tpmX/device/pcrs +What: /sys/class/tpm/tpmX/device/pcrs Date: April 2005 KernelVersion: 2.6.12 Contact: tpmdd-devel@lists.sf.net @@ -106,7 +106,7 @@ Description: The "pcrs" property will dump the current value of all Platform 1.2 chips, PCRs represent SHA-1 hashes, which are 20 bytes long. Use the "caps" property to determine TPM version. -What: /sys/class/misc/tpmX/device/pubek +What: /sys/class/tpm/tpmX/device/pubek Date: April 2005 KernelVersion: 2.6.12 Contact: tpmdd-devel@lists.sf.net @@ -158,7 +158,7 @@ Description: The "pubek" property will return the TPM's public endorsement Modulus Length: 256 (bytes) Modulus: The 256 byte Endorsement Key modulus -What: /sys/class/misc/tpmX/device/temp_deactivated +What: /sys/class/tpm/tpmX/device/temp_deactivated Date: April 2006 KernelVersion: 2.6.17 Contact: tpmdd-devel@lists.sf.net @@ -167,7 +167,7 @@ Description: The "temp_deactivated" property returns a '1' if the chip has cycle. Whether a warm boot (reboot) will clear a TPM chip from a temp_deactivated state is platform specific. -What: /sys/class/misc/tpmX/device/timeouts +What: /sys/class/tpm/tpmX/device/timeouts Date: March 2011 KernelVersion: 3.1 Contact: tpmdd-devel@lists.sf.net diff --git a/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt b/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt new file mode 100644 index 000000000000..3ad115efed1e --- /dev/null +++ b/Documentation/devicetree/bindings/security/tpm/st33zp24-i2c.txt @@ -0,0 +1,36 @@ +* STMicroelectronics SAS. ST33ZP24 TPM SoC + +Required properties: +- compatible: Should be "st,st33zp24-i2c". +- clock-frequency: I²C work frequency. +- reg: address on the bus + +Optional ST33ZP24 Properties: +- interrupt-parent: phandle for the interrupt gpio controller +- interrupts: GPIO interrupt to which the chip is connected +- lpcpd-gpios: Output GPIO pin used for ST33ZP24 power management D1/D2 state. +If set, power must be present when the platform is going into sleep/hibernate mode. + +Optional SoC Specific Properties: +- pinctrl-names: Contains only one value - "default". +- pintctrl-0: Specifies the pin control groups used for this controller. + +Example (for ARM-based BeagleBoard xM with ST33ZP24 on I2C2): + +&i2c2 { + + status = "okay"; + + st33zp24: st33zp24@13 { + + compatible = "st,st33zp24-i2c"; + + reg = <0x13>; + clock-frequency = <400000>; + + interrupt-parent = <&gpio5>; + interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; + + lpcpd-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>; + }; +}; diff --git a/Documentation/security/keys.txt b/Documentation/security/keys.txt index 821c936e1a63..c9e7f4f223a5 100644 --- a/Documentation/security/keys.txt +++ b/Documentation/security/keys.txt @@ -323,8 +323,6 @@ about the status of the key service: U Under construction by callback to userspace N Negative key - This file must be enabled at kernel configuration time as it allows anyone - to list the keys database. (*) /proc/key-users |