Table 31. TPM 1.2 security information
Option
Description
TPM Security
NOTE:
The TPM menu is available only when the TPM module is installed.
Enables you to control the reporting mode of the TPM. The
TPM Security
option is set to
Off
by default. You
can only modify the TPM Status, and TPM Activation if the
TPM Status
field is set to either
On with Pre-boot
Measurements
or
On without Pre-boot Measurements
.
When TPM 1.2 is installed, the
TPM Security
option is set to
Off
,
On with Pre-boot Measurements
, or
On
without Pre-boot Measurements
.
When TPM 2.0 is installed, the
TPM Security
option is set to
On
or
Off
. This option is set to
Off
by default.
TPM Information
Changes the operational state of the TPM. This option is set to
No Change
by default.
TPM Firmware
Indicates the firmware version of the TPM.
TPM Status
Specifies the TPM status.
TPM Command
Controls the Trusted Platform Module (TPM). When set to
None
, no command is sent to the TPM. When set to
Activate
, the TPM is enabled and activated. When set to
Deactivate
, the TPM is disabled and deactivated.
When set to
Clear
, all the contents of the TPM are cleared. This option is set to
None
by default.
Table 32. TPM 2.0 security information
Option
Description
TPM Information
Changes the operational state of the TPM. This option is set to
No Change
by default.
TPM Firmware
Indicates the firmware version of the TPM.
TPM Hierarcy
Enables, disables, or clears the storage and endorsement hierarchies. When set to
Enabled
, the storage and
endorsement hierarchies can be used.
When set to
Disabled
, the storage and endorsement hierarchies cannot be used.
When set to
Clear
, the storage and endorsement hierarchies are cleared of any values, and then reset to
Enabled
.
TPM Advanced
Settings
Specifies TPM Advanced Settings details.
Table 33. System Security details
Option
Description
Power Button
Enables or disables the power button on the front of the system. This option is set to
Enabled
by default.
AC Power Recovery
Sets how the system behaves after AC power is restored to the system. This option is set to
Last
by default.
AC Power Recovery Delay
Sets the time delay for the system to power up after AC power is restored to the system. This
option is set to
Immediate
by default.
User Defined Delay (60 s to 600 s)
Sets the
User Defined Delay
option when the
User Defined
option for
AC Power Recovery
Delay
is selected.
UEFI Variable Access
Provides varying degrees of securing UEFI variables. When set to
Standard
(the default), UEFI
variables are accessible in the operating system per the UEFI specification. When set to
Controlled
, selected UEFI variables are protected in the environment and new UEFI boot
entries are forced to be at the end of the current boot order.
Secure Boot
Enables Secure Boot, where the BIOS authenticates each pre-boot image by using the
certificates in the Secure Boot Policy. Secure Boot is set to
Disabled
by default.
Secure Boot Policy
When Secure Boot policy is set to
Standard
, the BIOS uses the system manufacturer’s key
and certificates to authenticate pre-boot images. When Secure Boot policy is set to
Custom
,
the BIOS uses the user-defined key and certificates. Secure Boot policy is set to
Standard
by
default.
Pre-operating system management applications
37
