User`s guide

User Guide
176
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Interrupt
Remapping
Enabled
Disabled
Enables or disables Intel VT-d
Interrupt Remapping support.
It only appears when Intel
Virtualization Technology for
Directed I/O is enabled.
Coherency support Enabled
Disabled
It only appears when Intel
Virtualization Technology for
Directed I/O is enabled.
ATS Support Enabled
Disabled
Enables or disables Intel VT-d
Address Translation Services
(ATS) support.
It only appears when Intel
Virtualization Technology for
Directed I/O is enabled.
Pass-trhough DMA
Support
Enabled
Disabled
It only appears when Intel
Virtualization Technology for
Directed I/O is enabled.
Hardware
Prefetcher
Enabled
Disabled
It is a speculative prefetch unit
within the preocessor(s).
Note: modifying this setting may
affect system performance.
Adjacent Cache
Line Prefectch
Enabled
Disabled
When enabled, cache lines are
fetched in pairs (even line + odd
line).
When disabled, only the current
cache line required is fetched.
Note: Modifying this setting may
affect system performance.
Direct Cache
Access
Enabled
Disabled
Allows processors to increase th
I/O performance by placing data
from I/O devices directly into
processor cache.
Table 13: Processor Submenu (Continued)
Feature Choices or
Display Only
Description Your Setting