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Table 36. System setup options—Pre-boot Behavior menu (continued)
Pre-boot Behavior
Fastboot
Fastboot
Extend BIOS POST Time
Extend BIOS POST Time
Table 37. System setup options—Virtualization menu
Virtualization Support
Intel Virtualization Technology
Enable Intel Virtualization Technology (VT)
VT for Direct I/O
Enable Intel VT for Direct I/O
Intel Trusted Execution Technology (TXT) Intel Trusted Execution Technology (TXT) is a set of hardware extensions to Intel
DMA Protection
Enable Pre-Boot DMA Support
Enable OS Kernel DMA Support
NOTE:
Errors deemed critical to the operation of the computer hardware will
always halt the computer.
Configures the speed of the UEFI boot process.
Default: Thorough. Performs complete hardware and configuration initialization during
boot.
Configures the BIOS POST (Power-On Self-Test) load time.
Default: 0 seconds
When enabled, the computer can run a Virtual Machine Monitor (VMM).
By default, the Enable Intel Virtualization Technology (VT) option is enabled.
When enabled, the computer can perform Virtualization Technology for Direct I/O
(VT-d). VT-d is an Intel method that provides virtualization for memory map I/O.
By default, the Enable Intel VT for Direct I/O option is enabled.
processors and chipsets. It provides a hardware-based root of trust to ensure that a
platform boots with a known good configuration of firmware, BIOS, virtual machine
monitor, and operating system. The following must be enabled in order to enable Intel
TXT -
● Intel Virtualization Technology - X
● Intel Virtualization Technology - Direct
By default, the Intel Trusted Execution Technology (TXT) option is enabled.
For additional security, Dell Technologies recommends keeping the Intel Trusted
Execution Technology (TXT) option enabled.
Allows you to control the Pre-Boot DMA protection for both internal and external ports.
This option does not directly enable DMA protection in the operating system.
NOTE:
This option is not available when the virtualization setting for IOMMU is
disabled (VT-d/AMD Vi).
By default, the Enable Pre-Boot DMA Support option is enabled.
For additional security, Dell Technologies recommends keeping the Enable Pre-Boot
DMA Support option enabled.
NOTE:
This option is provided only for compatibility purposes, since some older
hardware is not DMA capable.
Allows you to control the Kernel DMA protection for both internal and external ports.
This option does not directly enable DMA protection in the operating system. For
operating systems that support DMA protection, this setting indicates to the operating
system that the BIOS supports the feature.
NOTE:
This option is not available when the virtualization setting for IOMMU is
disabled (VT-d/AMD Vi).
BIOS-instellingen
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