Datasheet

Datasheet, Volume 2 231
Processor Configuration Registers
2.16.6 RTADDR_REG—Root-Entry Table Address Register
This register provides the base address of the root-entry table.
B/D/F/Type: 0/0/0/DMIVC1REMAP
Address Offset: 20–27h
Reset Value: 0000000000000000h
Access: RW, RO
Bit Attr
Reset
Value
Description
63:12 RW
00000000
00000h
Root Table Address (RTA)
This register points to base of page aligned, 4 KB-sized root-entry table in
system memory. Hardware may ignore and not implement bits 63:HAW,
where HAW is the host address width.
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 it.
11:0 RO 000h Reserved