WHEA_GENERIC_ERROR_DESCRIPTOR_V2 structure (ntddk.h)
The WHEA_GENERIC_ERROR_DESCRIPTOR_V2 structure describes a generic error source.
Syntax
typedef struct _WHEA_GENERIC_ERROR_DESCRIPTOR_V2 {
USHORT Type;
UCHAR Reserved;
UCHAR Enabled;
ULONG ErrStatusBlockLength;
ULONG RelatedErrorSourceId;
UCHAR ErrStatusAddressSpaceID;
UCHAR ErrStatusAddressBitWidth;
UCHAR ErrStatusAddressBitOffset;
UCHAR ErrStatusAddressAccessSize;
WHEA_PHYSICAL_ADDRESS ErrStatusAddress;
WHEA_NOTIFICATION_DESCRIPTOR Notify;
UCHAR ReadAckAddressSpaceID;
UCHAR ReadAckAddressBitWidth;
UCHAR ReadAckAddressBitOffset;
UCHAR ReadAckAddressAccessSize;
WHEA_PHYSICAL_ADDRESS ReadAckAddress;
ULONGLONG ReadAckPreserveMask;
ULONGLONG ReadAckWriteMask;
} WHEA_GENERIC_ERROR_DESCRIPTOR_V2, *PWHEA_GENERIC_ERROR_DESCRIPTOR_V2;
Members
Type
The type of error source descriptor. This member is always set to WHEA_ERROR_SOURCE_DESCRIPTOR_TYPE_GENERIC_V2.
Reserved
Reserved for system use.
Enabled
A Boolean value that indicates if the error source is enabled.
ErrStatusBlockLength
The size, in bytes, of the block of error status registers that contain the error data for the error source.
RelatedErrorSourceId
The identifier of the related error source. If the generic error source does not relate back to another error source, this member is not used.
ErrStatusAddressSpaceID
The address space of the address that is specified in the ErrStatusAddress member.
ErrStatusAddressBitWidth
The size, in bits, of the register at the address that is specified in the ErrStatusAddress member.
ErrStatusAddressBitOffset
The offset, in bits, of the register at the address that is specified in the ErrStatusAddress member.
ErrStatusAddressAccessSize
The access size for reading the register at the address that is specified in the ErrStatusAddress member.
ErrStatusAddress
The 64-bit address of a register that contains the physical address of a block of memory that contains the error status data for the error source. This block of memory must reside in firmware reserved memory so that it is not reclaimed by the operating system's memory manager. The error status data contained in this block of memory is described by a WHEA_GENERIC_ERROR structure.
Notify
A WHEA_NOTIFICATION_DESCRIPTOR structure that describes the notification mechanism that is used by the error source.
ReadAckAddressSpaceID
The address space of the address that is specified in the ReadAckAddress member.
ReadAckAddressBitWidth
The size, in bits, of the register at the address that is specified in the ReadAckAddress member.
ReadAckAddressBitOffset
The offset, in bits, of the register at the address that is specified in the ReadAckAddress member.
ReadAckAddressAccessSize
The access size for reading the register at the address that is specified in the ReadAckAddress member.
ReadAckAddress
The 64-bit address of a register that is used to notify the RAS controller that Windows has processed the Error Status Block.
ReadAckPreserveMask
Contains a mask of bits to preserve when writing the Read Ack register.
ReadAckWriteMask
Contains a mask of bits to set when writing the Read Ack register.
Remarks
This structure corresponds to the Generic Hardware Error Source version 2 (GHESv2) structure that is defined in Advanced Configuration and Power Interface (ACPI) Specification version 6.2.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1803 |
| Header | ntddk.h |