Datasheet
Processor Configuration Registers
260 Datasheet, Volume 2
2.18 Integrated Graphics VTd Remapping Engine
Registers
Table 2-21. Integrated Graphics VTd Remapping Engine Register Address Map (Sheet 1 of
2)
Address
Offset
Register Symbol Register Name Reset Value Access
0–3h VER_REG Version Register 00000010h RO
4–7h RSVD Reserved 0h RO
8–Fh CAP_REG
Capability Register 00C0000020
E60262h
RO
10–17h ECAP_REG
Extended Capability Register 0000000000
F0101Ah
RO, RO-V
18–1Bh GCMD_REG Global Command Register 00000000h RO, WO
1C–1Fh GSTS_REG Global Status Register 00000000h RO-V, RO
20–27h RTADDR_REG
Root-Entry Table Address Register 0000000000
000000h
RW
28–2Fh CCMD_REG
Context Command Register 0800000000
000000h
RW, RW-V, RO-
V
30–33h RSVD Reserved 0h RO
34–37h FSTS_REG
Fault Status Register
00000000h
RO, ROS-V,
RW1CS
38–3Bh FECTL_REG Fault Event Control Register 80000000h RW, RO-V
3C–3Fh FEDATA_REG Fault Event Data Register 00000000h RW
40–43h FEADDR_REG Fault Event Address Register 00000000h RW
44–47h FEUADDR_REG Fault Event Upper Address Register 00000000h RW
48–57h RSVD Reserved 0h RO
58–5Fh AFLOG_REG
Advanced Fault Log Register 0000000000
000000h
RO
60–63h RSVD Reserved 0h RO
64–67h PMEN_REG Protected Memory Enable Register 00000000h RW, RO-V
68–6Bh PLMBASE_REG Protected Low-Memory Base Register 00000000h RW
6C–6Fh PLMLIMIT_REG Protected Low-Memory Limit Register 00000000h RW
70–77h PHMBASE_REG
Protected High-Memory Base Register 0000000000
000000h
RW
78–7Fh PHMLIMIT_REG
Protected High-Memory Limit Register 0000000000
000000h
RW
80–87h IQH_REG
Invalidation Queue Head Register 0000000000
000000h
RO-V
88–8Fh IQT_REG
Invalidation Queue Tail Register 0000000000
000000h
RW-L
90–97h IQA_REG
Invalidation Queue Address Register 0000000000
000000h
RW-L
98–9Bh RSVD Reserved 0h RO
9C–9Fh ICS_REG
Invalidation Completion Status
Register
00000000h RW1CS
A0–A3h IECTL_REG Invalidation Event Control Register 80000000h RW-L, RO-V
A4–A7h IEDATA_REG Invalidation Event Data Register 00000000h RW-L
A8–ABh IEADDR_REG Invalidation Event Address Register 00000000h RW-L