Specification Sheet
Host Bridge/DRAM Registers
90 Datasheet, Volume 2 of 2
3.30 Remap Base Address Register (REMAPBASE)—
Offset 90h
Access Method
Default: 7FFFF00000h
Type: CFG
(Size: 64 bits)
Offset: [B:0, D:0, F:0] + 90h
6
3
6
0
5
6
5
2
4
8
4
4
4
0
3
6
3
2
2
8
2
4
2
0
1
6
1
2
8
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RSVD
REMAPBASE
RSVD
LOCK
Bit
Range
Default &
Access
Field Name (ID): Description
63:39
0h
RO
Reserved (RSVD): Reserved.
38:20
7FFFFh
RW_L
REMAPBASE: The value in this register defines the lower boundary of the Remap
window. The Remap window is inclusive of this address. In the decoder A[19:0] of the
Remap Base Address are assumed to be 0's. Thus the bottom of the defined memory
range will be aligned to a 1MB boundary.
When the value in this register is greater than the value programmed into the Remap
Limit register, the Remap window is disabled.
These bits are Intel TXT lockable.
19:1
0h
RO
Reserved (RSVD): Reserved.
0
0h
RW_KL
LOCK: This bit will lock all writeable settings in this register, including itself.