Intel Xeon L3406 CM80616005010AA User Manual

Datasheet, Volume 2

173

Enables Locality 1 decoding in chipset.

General Behavioral Rules:

• This is a write-only register.
• This register is only available in the private Intel TXT configuration space.
• Accesses to this register are done with 1-byte writes.
• The data bits associated with this command are undefined and have no specific 

meaning.

Disables Locality 1 decoding in chipset.

General Behavioral Rules:

• This is a write-only register.
• This register is only available in the private Intel TXT configuration space.
• Accesses to this register are done with 1-byte writes.
• The data bits associated with this command are undefined and have no specific 

meaning.

Enables Locality 2 decoding in chipset. This command will open Locality2 for decode as 
an Intel TXT space by the chipset. This command is either an TXTMW or a private write 
when private is open. 

OPEN.PRIVATE will open Locality 2 and CLOSE.PRIVATE will close Locality 2 without 

requiring an explicit OPEN/CLOSE.CMD.LOCALITY3 cycle.

The OPEN/CLOSE Locality 2 commands are to be used in the window while PRIVATE is 
open, but the VMM wants to close or re-open the Locality 2 space while still leaving 
PRIVATE open. 

If the locality is closed, then cycles to the Locality 2 address range are not decoded as 
Intel TXT cycles. 

7:0

WO

0h

N/A

7:0

WO

0h

N/A