Dell Latitude 7030 Rugged Extreme Tablet Owners Manual - Page 144

Table 46. System setup options-Preboot Behavior menu continued

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Table 46. System setup options-Preboot Behavior menu (continued) Preboot Behavior Early Keyboard Backlight Keyboard Backlight Sign of Life. By default, the Early Keyboard Backlight option is enabled. Enable Tablet Button LED Sign of Life By default, the option is enabled. Table 47. System setup options-Virtualization menu Virtualization Support Intel Virtualization Technology Enable Intel Virtualization Technology (VT) When enabled, the computer can run a Virtual Machine Monitor (VMM). By default, the Enable Intel Virtualization Technology (VT) option is enabled. VT for Direct I/O Enable Intel VT for Direct I/O 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. Intel Trusted Execution Technology (TXT) Intel Trusted Execution Technology (TXT) is a set of hardware extensions to Intel 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 disabled. For additional security, Dell Technologies recommends keeping the Intel Trusted Execution Technology (TXT) option enabled. DMA Protection Enable Pre-Boot DMA Support 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 PreBoot DMA Support option enabled. NOTE: This option is provided only for compatibility purposes, since some older hardware is not DMA capable. Enable OS Kernel DMA Support 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). By default, the Enable OS Kernel DMA Support option is enabled. NOTE: This option is provided only for compatibility purposes, since some older hardware is not DMA capable. 144 BIOS Setup

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Table 46. System setup options—Preboot Behavior menu (continued)
Preboot Behavior
Early Keyboard Backlight
Keyboard Backlight Sign of Life.
By default, the
Early Keyboard Backlight
option is enabled.
Enable Tablet Button LED Sign of Life
By default, the option is enabled.
Table 47. System setup options—Virtualization menu 
Virtualization Support
Intel Virtualization Technology
Enable Intel Virtualization Technology (VT)
When enabled, the computer can run a Virtual Machine Monitor (VMM).
By default, the
Enable Intel Virtualization Technology (VT)
option is enabled.
VT for Direct I/O
Enable Intel VT for Direct I/O
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.
Intel Trusted Execution Technology
(TXT)
Intel Trusted Execution Technology (TXT) is a set of hardware extensions to Intel
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 disabled.
For additional security, Dell Technologies recommends keeping the
Intel Trusted
Execution Technology (TXT)
option enabled.
DMA Protection
Enable Pre-Boot DMA Support
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.
Enable OS Kernel DMA Support
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).
By default, the
Enable OS Kernel DMA Support
option is enabled.
NOTE:
This option is provided only for compatibility purposes, since some
older hardware is not DMA capable.
144
BIOS Setup