AC82G41SLGQ3 Datasheet, PDF (437/604 Pages) Intel Corporation – Intel® 4 Series Chipset Family

Intel^® Virtualization Technology for Directed I/O Registers (D0:F0) (Intel^® 82Q45 GMCH Only)
12.1.5
GSTS_REG—Global Status Register
B/D/F/Type:
Address Offset:
Default Value:
Access:
Size:
0/0/0/VC0PREMAP
1C-1Fh
00000000h
RO
32 bits
This register reports general DMA-remapping hardware status.
Bit
Access
Default
Value
RST/PWR
Description
31
RO
30
RO
29
RO
28
RO
27
RO
26
RO
25
RO
Translation Enable Status (TES): This field indicates the
status of DMA-remapping hardware.
0b
Core
0 = DMA-remapping hardware is not enabled
1 = DMA-remapping hardware is enabled
Root Table Pointer Status (RTPS): This field indicates
the status of the root- table pointer in hardware.
This field is cleared by hardware when software sets the
0b
Core
SRTP field in the Global Command register. This field is set
by hardware when hardware completes the set root-table
pointer operation using the value provided in the Root-
Entry Table Address register.
Fault Log Status (FLS): This field is valid only for
implementations supporting advanced fault logging.
This field indicates the status of the fault-log pointer in
hardware.
0b
Core
This field is cleared by hardware when software sets the
SFL field in the Global Command register. This field is set
by hardware when hardware completes the set fault-log
pointer operation using the value provided in the Advanced
Fault Log register.
Advanced Fault Logging Status (AFLS): This field is
valid only for implementations supporting advanced fault
0b
Core
logging. This field indicates advanced fault logging status.
0 = Advanced Fault Logging is not enabled
1 = Advanced Fault Logging is enabled
Write Buffer Flush Status (WBFS): This bit is valid only
for implementations requiring write buffer flushing.
This field indicates the status of the write buffer flush
0b
Core
operation. This field is set by hardware when software sets
the WBF field in the Global Command register. This field is
cleared by hardware when hardware completes the write
buffer flushing operation.
Queued Invalidation Enable Status (QIES): This field
indicates queued invalidation enable status.
0b
Core
0 = queued invalidation is not enabled
1 = queued invalidation is enabled
Interrupt Remapping Enable Status (IRES): This field
indicates the status of Interrupt-remapping hardware.
0b
Core
0 = Interrupt-remapping hardware is not enabled
1 = Interrupt-remapping hardware is enabled
Datasheet
437