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Table 52. System Security details (continued)
Option
Memory Encryption
Global Memory Integrity
TME Encryption Bypass
Intel(R) SGX
Power Button
AC Power Recovery
AC Power Recovery Delay
User Defined Delay (120 s to 600
s)
UEFI Variable Access
In-Band Manageability Interface
SMM Security Migration
Secure Boot
Secure Boot Policy
50
Pre-operating system management applications
Description
Pre-boot measurements. This option is set to Off by default. It is set On for Secure
Launch (Firmware Protection) support on Windows 2022.
Enables or disables the Intel Total Memory Encryption (TME) and Multi-Tenant (Intel
TME-MT). When option is set to Disabled, BIOS disables both TME and MK-TME
technology. When option is set to Single Key BIOS enables the TME technology. When
option is set to Multiple Keys, BIOS enables the TME-MT technology. This option is set
to Disabled by default.
Enables or disables the Global Memory Integrity.
Allows the option to bypass the Intel Total Memory Encryption. This option is set to
Disabled by default.
Enables you to set the Intel Software Guard Extension (SGX) option. To enable the Intel
SGX option, processor must be SGX capable, memory population must be compatible
(minimum x8 identical DIMM1 to DIMM8 per CPU socket, not support on persistent
memory configuration), memory operating mode must be set at optimizer mode, memory
encryption must be enabled and node interleaving must be disabled. This option is set to
Off by default. When this option is to Off, BIOS disables the SGX technology. When this
option is to On, BIOS enables the SGX technology.
Enables or disables the power button on the front of the system. This option is set to
Enabled by default.
Sets how the system behaves after AC power is restored to the system. This option is
set to Last by default.
NOTE:
The host system will not power on up until iDRAC Root of Trust (RoT) is
completed, host power on will be delayed by minimum 90 seconds after the AC
applied.
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. When this option is set to
Immediate, there is no delay for power up. When this option is set to Random, the
system creates a random delay for power up. When this option is set to User Defined,
the system delay time is manually to power up.
Sets the User Defined Delay option when the User Defined option for AC Power
Recovery Delay is selected. The actual AC recovery time needs to add iDRAC root of
trust time (around 50 seconds).
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.
When set to Disabled , this setting hides the Management Engine's (ME), HECI devices,
and the system's IPMI devices from the operating system. This prevents the operating
system from changing the ME power capping settings, and blocks access to all in-
band management tools. All management should be managed through out-of-band. This
option is set to Enabled by default.
NOTE:
BIOS update requires HECI devices to be operational and DUP updates
require IPMI interface to be operational. This setting needs to be set to Enabled to
avoid updating errors.
Enables or disables the UEFI SMM security migration protections. It is set to Disabled
by default.
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.
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
®
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