Gsts_Reg-Global Status Register - Intel 2ND GENERATION CORE PROCESSOR FAMILY DESKTOP - DATASHEET VOLUME 2 01-2011 Datasheet

Processor Configuration Registers
2.18.5 GSTS_REG—Global Status Register
This register reports general remapping hardware status.
B/D/F/Type:
Address Offset:
Reset Value:
Access:
Size:
BIOS Optimal Default
Bit
31
30
29
28
27
26
25
Datasheet, Volume 2
0/0/0/GFXVTBAR
1C–1Fh
00000000h
RO, RO-V
32 bits
000000h
Reset RST/
Attr
Value PWR
RO-V 0b Uncore
RO-V 0b Uncore
RO 0b Uncore
RO 0b Uncore
RO 0b Uncore
RO-V 0b Uncore
RO-V 0b Uncore
Description
Translation Enable Status (TES)
This field indicates the status of DMA-remapping hardware.
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 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)
0 = Cleared by hardware when software Sets the SFL field in the
Global Command register.
1 = 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 logging. It indicates the advanced fault logging status:
0 = Advanced Fault Logging is Not enabled.
1 = Advanced Fault Logging is enabled.
Write Buffer Flush Status (WBFS)
This field is valid only for implementations requiring write buffer
flushing. This field indicates the status of the write buffer flush
command. It is:
• Set by hardware when software sets the WBF field in the
Global Command register.
• Cleared by hardware when hardware completes the write
buffer flushing operation.
Queued Invalidation Enable Status (QIES)
This field indicates queued invalidation enable status.
0 = Disabled. Queued invalidation is not enabled.
1 = Enabled. Queued invalidation is enabled.
Interrupt Remapping Enable Status (IRES)
This field indicates the status of Interrupt-remapping hardware.
0 = Interrupt-remapping hardware is Not enabled
1 = Interrupt-remapping hardware is enabled
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