Cisco Systems UCSCPCIEBTG, 57712 manual Intel Virtualization Technology, Intel VT for Directed IO

BIOS Parameters by Server Model

Advanced BIOS Parameters for C260 Servers

Name	Description
Execute Disable	Classifies memory areas on the server to specify where
	application code can execute. As a result of this classification,
	the processor disables code execution if a malicious worm
	attempts to insert code in the buffer. This setting helps to prevent
	damage, worm propagation, and certain classes of malicious
	buffer overflow attacks. This can be one of the following:
	• Disabled—The processor does not classify memory areas.
	• Enabled—The processor classifies memory areas.
	We recommend that you contact your operating system vendor
	to make sure the operating system supports this feature.
Intel Virtualization Technology	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.
	Note	If you change this option, you must power cycle the
		server before the setting takes effect.
Intel VT for Directed IO	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 Interrupt Remapping	Whether the processor supports Intel VT-d Interrupt Remapping.
	This can be one of the following:
	• Disabled—The processor does not support remapping.
	• Enabled—The processor uses VT-d Interrupt Remapping
		as required.
Intel VT-d Coherency Support	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.

	Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 1.5
224	OL-28893-01