Справочник Пользователя для HP A2Y15AV
Processor Configuration Registers
272
Datasheet, Volume 2
2.18.6
RTADDR_REG—Root-Entry Table Address Register
This register providing the base address of root-entry table.
B/D/F/Type:
0/0/0/GFXVTBAR
Address Offset:
20–27h
Reset Value:
0000000000000000h
Access:
RW
Size:
64 bits
BIOS Optimal Default
0000000000h
Bit
Access
Reset
Value
RST/
PWR
Description
63:39
RO
0h
Reserved (RSVD)
38:12
RW
0000000h
Uncore
Root Table Address (RTA)
This field points to base of page aligned, 4 KB-sized root-entry
This field points to base of page aligned, 4 KB-sized root-entry
table in system memory. Hardware ignores and not implements
bits 63:HAW, where HAW is the host address width.
Software specifies the base address of the root-entry table
Software specifies the base address of the root-entry table
through this register, and programs it in hardware through the
SRTP field in the Global Command register.
Reads of this register returns value that was last programmed to
Reads of this register returns value that was last programmed to
it.
11:0
RO
0h
Reserved (RSVD)