Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
method. This control method is required to execute a Notify on the error device (PNP0C33); the
notification code used is 0x80.
An example of a control method for error notification is the following:
Method (\_GPE._L08) { // GPE 8 level error notification
}
Notify (error_device, 0x80)
The overall flow when the platform uses the SCI notification is:
The platform enumerates the error source with SCI as the notification method using the format in
Table 18-287 and Table 18-288
The platform surfaces an error device, PNP ID PNP0C33, to the OSPM
When the platform is ready to report an error, the platform populates the error status block including
the block status field ( Table 18-288)
The platform signals the error using an SCI, on the appropriate GPE
The OSPM evaluates the GPE control method associated with this event as indicated on
Section 5.6.4.1.1; the platform is responsible for providing a control method that issues a
NOTIFY(error_device, 0x80) on the error device
OSPM responds to this notification by checking the error status block of all generic error sources
with the SCI Generic notification type to identify the source reporting the error
18.3.2.7 Hardware Error Notification
This table describes the notification mechanism associated with a hardware error source.
Table 18-290 Hardware Error Notification Structure
Field Byte
Length
Byte
Offset
Description
Type 1 0 Identifies the notification type:
0 – Polled
1 – External Interrupt
2 – Local Interrupt
3 – SCI
4 – NMI
5 - CMCI
6 - MCE
All other values are reserved
Length 1 1 Total length of the structure in bytes.
Hewlett-Packard/Intel/Microsoft/Phoenix/Toshiba 649