Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
Field
Max Sections Per
Record
4 12 Indicates the maximum number of error sections included in an
error record created as a result of an error reported by this error
source. Must be >= 1.
Bus 4 16 Identifies the PCI Bus and Segment of the device. The Bus is
encoded in bits [7:0]. For systems that expose multiple PCI
segment groups, the segment number is encoded in bits [23:8]
and bits [31:24] must be zero. For systems that do not expose
multiple PCI segment groups, bits 8-31 must be zero. If the
GLOBAL flag is specified, this field is ignored.
Device 2 20 Identifies the PCI Device Number of the device.
If the GLOBAL flag is specified, this field is ignored.
Function 2 22 Identifies the PCI Function Number of the device.
If the GLOBAL flag is specified, this field is ignored.
Device Control 2 24 Device control bits with which to initialize the device.
Reserved 2 26 Must be zero.
Uncorrectable Error
Mask
Uncorrectable Error
Severity
Correctable Error
Mask
Advanced Error
Capabilities and
Control
Byte
Length
Byte
Offset
Description
4 28 Value to write to the root port’s Uncorrectable Error Mask
register.
4 32 Value to write to the root port’s Uncorrectable Error Severity
register.
4 36 Value to write to the root port’s Correctable Error Mask register.
4 40 Value to write to the root port’s Advanced Error Capabilities and
Control Register.
18.3.2.5 PCI Express/PCI-X Bridge AER Structure
PCI Express/PCI-X bridges that implement AER support implement fields that control the behavior
how errors are reported across the bridge.
The HEST may contain one entry of this type for each PCI Express/PCI-X bridges if none of the
entries has the GLOBAL flag set. If the GLOBAL flag is set, there may only be one entry of this
type and the information contained in that entry will be applied to all PCI Express/ PCI-X bridges.
Table 18-328 PCI Express Bridge AER Structure
Field
Byte
Length
Byte
Offset
Description
Type 2 0 8 – AER Bridge.
Source Id 2 2 Uniquely identifies the error source.
Reserved 2 4 Reserved.
722 April, 2015 Version 6.0