CP80617004119AES LBU3 Intel, CP80617004119AES LBU3 Datasheet - Page 383

• Manufacturer Part Number: CP80617004119AES LBU3
• Manufacturer: Intel

Specifications of CP80617004119AES LBU3

• Lead Free Status / RoHS Status: Compliant

Processor Configuration Registers
Datasheet
59:57
56:50
Bit
49
48
Access
RW
RW
RO
RO
Default
Value
001b
00h
0b
0b
IOTLB Actual Invalidation Granularity (IAIG)
Hardware reports the granularity at which an invalidation
request was processed through this field when reporting
invalidation completion (by clearing the IVT field).
The following are the encodings for this field.
incorrect invalidation request and ignored the request.
Examples of incorrect invalidation requests include
detecting an unsupported address mask value in Invalidate
Address register for page-selective invalidation requests.
response to a global, domain-selective, or page-selective
invalidation request.
domain-id specified by software in the DID field. This could
be in response to a domain-selective, or page-selective
invalidation request.
using the address, mask and hint specified by software in
the Invalidate Address register and domain-id specified in
DID field. This can be in response to a page-selective
invalidation request.
Reserved
Drain Reads (DR)
This field is ignored by hardware if the DRD field is reported
as clear in the Capability register.
When DRD field is reported as set in the Capability register,
the following encodings are supported for this field:
0 = Hardware may complete the IOTLB invalidation without
1 = Hardware must drain DMA read requests.
Drain Writes (DW)
This field is ignored by hardware if the DWD field is
reported as clear in the Capability register.
When DWD field is reported as set in the Capability register,
the following encodings are supported for this field:
0 = Hardware may complete the IOTLB invalidation without
1 = Hardware must drain relevant translated DMA write
000:Reserved. This indicates hardware detected an
001:Global Invalidation performed. This could be in
010:Domain-selective invalidation performed using the
011:Domain-page-selective invalidation performed
100 - 111:Reserved.
(Sheet 2 of 3)
draining DMA read requests.
draining DMA write requests.
requests.
Description
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