Справочник Пользователя для HP A2Y15AV
Datasheet, Volume 2
77
Processor Configuration Registers
2.5.30
REMAPLIMIT—Remap Limit Address Register
2.5.31
TOM—Top of Memory Register
This Register contains the size of physical memory. BIOS determines the memory size
reported to the OS using this Register.
reported to the OS using this Register.
B/D/F/Type:
0/0/0/PCI
Address Offset:
98–9Fh
Reset Value:
0000000000000000h
Access:
RW-L, RW-KL
Size:
64 bits
BIOS Optimal Default
000000000000h
Bit
Access
Reset
Value
RST/
PWR
Description
63:36
RO
0h
Reserved (RSVD)
35:20
RW-L
0000h
Uncore
Remap Lim Remap Base register, the Remap window is disabled.
These Bits are Intel TXT lockable.
These Bits are Intel TXT lockable.
19:1
RO
0h
Reserved (RSVD)
0
RW-KL
0b
Uncore
Lock (LOCK)
This bit will lock all writeable settings in this register, including
This bit will lock all writeable settings in this register, including
itself.
B/D/F/Type:
0/0/0/PCI
Address Offset:
A0–A7h
Reset Value:
0000007FFFF00000h
Access:
RW-L, RW-KL
Size:
64 bits
BIOS Optimal Default
00000000000h
Bit
Access
Reset
Value
RST/
PWR
Description
63:39
RO
0h
Reserved (RSVD)
38:20
RW-L
7FFFFh
Uncore
Top of Memory (TOM)
This register reflects the total amount of populated physical
This register reflects the total amount of populated physical
memory. This is NOT necessarily the highest main memory
address (holes may exist in main memory address map due to
addresses allocated for memory mapped IO). These bits
correspond to address bits 38:20 (1 MB granularity). Bits 19:0
are assumed to be 0. All the bits in this register are locked in
Intel TXT mode.
19:1
RO
0h
Reserved (RSVD)
0
RW-KL
0b
Uncore
Lock (LOCK)
This bit will lock all writeable settings in this register, including
This bit will lock all writeable settings in this register, including
itself.