Service Guide

BIOS Setup Utilities
122 Intel
®
Server System P4000IP and Intel
®
Workstation System P4000CR Service Guide
Option Values:
Enabled
Disabled
Help Text:
Enable/Disable Intel
®
VT-d Interrupt Remapping support. For some processors, this
option may be "always enabled".
Comments: This option only appears when Intel
®
Virtualization Technology for Directed I/O is
Enabled.
For some processors this will be enabled unconditionally whenever Intel
®
VT-d is
enabled. In that case, this option will be shown as "Enabled", and grayed out and not
changeable.
23. Coherency Support
Option Values: Enabled
Disabled
Help Text:
Enable/Disable Intel
®
VT-d Coherency support.
Comments: This option only appears when Intel
®
Virtualization Technology for
Directed I/O is
Enabled
.
24. ATS Support
Option Values:
Enabled
Disabled
Help Text:
Enable/Disable Intel
®
VT-d Address Translation Services (ATS) support.
Comments: This option only appears when Intel
®
Virtualization Technology for
Directed I/O is
Enabled
.
25. Pass-through DMA Support
Option Values:
Enabled
Disabled
Help Text:
Enable/Disable Intel
®
VT-d Pass-through DMA support. For some processors, this
option may be "always enabled".
Comments: This option only appears when Intel
®
Virtualization Technology for
Directed I/O is
Enabled
. For some processors this will be enabled unconditionally whenever
Intel
®
VT-d is enabled. In that case, this option will be shown as "Enabled", and grayed out
and not changeable.
26. Enhanced Error Containment Mode