TYAN S7040 User Manual page 61

Execute Disable Bit
XD can prevent certain classes of malicious buffer overflow attacks when combined
with a supporting OS (Windows Server 2003 SP1, Windows XP SP2, SuSE Linux
9.2, RedHat Enterprise 3 Update 3).
Enabled / Disabled
Hardware Prefetcher
Enable the Mid-level Cache (L2) streamer prefetcher.
Enabled / Disabled
Adjacent Cache Line Prefetch
Enable the Mid-level Cache (L2) prefetching of adjacent cache lines.
Enabled / Disabled
DCU Streamer Prefetch
Enable prefetch of next L1 Data line based upon multiple loads in same cache line.
Enabled / Disabled
DCU IP Prefetcher
Enable prefetch of next L1 line based upon sequential load history.
Enabled / Disabled
Intel Virtualization Technology
When enabled, a VMM can utilize the additional hardware capabilities provided by
Vanderpool Technology.
NOTE:
Once the lock bit is set, the contents of this register can not be modified until
S5 reset occurs.
Enabled / Disabled
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