Справочник Пользователя для HP A2Y15AV

64

Datasheet, Volume 2

This register determines the Mask Address register of the memory range that is pre-
allocated to the Intel Management Engine. Together with the MESEG_BASE register it 
controls the amount of memory allocated to the ME.

This register is locked by Intel TXT.

BIOS must program MESEG_BASE and MESEG_MASK so that Intel ME stolen Memory is 

carved out from TOM.

63:39

RO

0h

38:20

RW-L

00000h

Uncore

ME UMA Memory Mask (MEMASK) 
This field indicates the bits that must match MEBASE in order to 

qualify as an Intel MEMemory Range access.
For example, if the field is set to 7FFFFh, then Intel MEMemory is 

1 MB in size. 
Another example is that if the field is set to 7FFFEh, then Intel 

MEMemory is 2 MB in size. 
In other words, the size of Intel MEMemory Range is limited to 

power of 2 times 1 MB.

19:12

RO

0h

11

RW-L

0b

Uncore

ME Stolen Memory Enable (ME_STLEN_EN) 
Indicates whether the Intel ME stolen Memory range is enabled 

or not.

10

RW-KL

0b

Uncore

ME Range Lock (MELCK) 
This field indicates whether all bits in the MESEG_BASE and 

MESEG_MASK registers are locked. When locked, updates to any 

field for these registers must be dropped.

9:0

RO

0h