Lenovo ThinkPad T540p User Manual page 130

Table 5. Security menu items (continued)
Menu item
Memory Protection
Virtualization
I/O Port Access
114
User Guide
Submenu item
Execution Prevention
Intel Virtualization
Technology
Intel VT-d Feature
Ethernet LAN
Wireless LAN
Wireless WAN
Bluetooth
USB Port
Ultrabay (HDD/Optical)
Memory Card Slot
Smart Card Slot
Selection
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
Comments
Some computer viruses
and worms cause memory
buffers to overflow by
running code where only
data is allowed. If the
Data Execution Prevention
feature can be used with
your operating system, then
by selecting Enabled you
can protect your computer
against attacks by such
viruses and worms. If after
choosing Enabled you find
that a program does not run
correctly, select Disabled
and reset the setting.
If you select Enabled, a
Virtual Machine Monitor
(VMM) can utilize the
additional hardware
capabilities provided by
Virtualization Technology.
Intel VT-d is Intel
Virtualization Technology
for Directed I/O. When
enabled, a VMM can utilize
the platform infrastructure
for I/O virtualization.
If you select Enabled, you
can use the Ethernet LAN
device.
If you select Enabled,
you can use wireless LAN
devices.
If you select Enabled, you
can use wireless WAN
devices.
If you select Enabled, you
can use Bluetooth devices.
If you select Enabled, you
can use USB connectors.
If you select Enabled,
you can use the Ultrabay
device.
If you select Enabled, you
can use the memory card
slots.
If you select Enabled, you
can use the smart card
slots.