User's Manual

DescriptionName
Whether the processor uses Intel Virtualization Technology
(VT), which allows a platform to run multiple operating systems
and applications in independent partitions. This can be one of
the following:
• Disabled—The processor does not permit virtualization.
• Enabled—The processor allows multiple operating
systems in independent partitions.
If you change this option, you must power cycle the
server before the setting takes effect.
Note
Intel VT
Whether the processor uses Intel Virtualization Technology for
Directed I/O (VT-d). This can be one of the following:
• Disabled—The processor does not use virtualization
technology.
• Enabled—The processor uses virtualization technology.
Intel VT-d
Whether the processor supports Intel VT-d Coherency. This can
be one of the following:
• Disabled—The processor does not support coherency.
• Enabled—The processor uses VT-d Coherency as
required.
Intel VT-d Coherency Support
Whether the processor supports Intel VT-d Address Translation
Services (ATS). This can be one of the following:
• Disabled—The processor does not support ATS.
• Enabled—The processor uses VT-d ATS as required.
Intel VT-d ATS Support
Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 1.5
OL-28893-01 185
BIOS Parameters by Server Model
Advanced BIOS Parameters for C22 and C24 Servers