Intel E3-1275 Datasheet Page 259

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Datasheet, Volume 2 259
Processor Configuration Registers
2.18.31 VTPOLICY—DMA Remap Engine Policy Control Register
This register contains all the policy bits related to the DMA remap engine.
B/D/F/Type: 0/0/0/GFXVTBAR
Address Offset: FF0–FF3h
Reset Value: 0000_0000h
Access: RO, RO-KFW, RW-KL, RW-L
Size: 32 bits
BIOS Optimal Default 0000h
Bit Attr
Reset
Value
RST/
PWR
Description
31 RW-KL 0b Uncore
DMA Remap Engine Policy Lock-Down (DMAR_LCKDN)
This bit protects all the DMA remap engine specific policy
configuration registers. Once this bit is set by software all the DMA
remap engine registers within the range F00h to FFCh will be read
only. This bit can only be cleared through platform reset.
30:0 RO 0h Reserved
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