Method and apparatus for providing cooperative fault recovery between a processor and a service processor

A method for exchanging fault recovery information between a service processor having a service processor test port and an operating system executing within at least one processor, wherein said processor has a processor test port interfaced to said service processor test port, wherein said method comprising:

• detecting a fault by said at least one processor in a system component coupled to said at least one processor;
• writing fault recovery information in conformance with said detected fault to a register within said at least one processor, wherein said register is dedicated for exchange of said fault recovery information between said operating system and said service processor;
• responsive to said writing, transmitting a command from said service processor test port to said processor test port to access said fault recovery information;
• responsive to said transmitting, receiving said command at said processor test port;
• responsive to said receiving, reading information from said register to accomplish an exchange of said fault recovery information between said operating system and said service processor and providing said information to said service processor for taking an action in conformance with said detected fault;
• and
• responsive to said reading, correcting said fault.

A method for exchanging fault recovery information between a service processor having a service processor test port and an operating system executing within at least one processor, wherein said processor has a processor test port interfaced to said service processor test port, wherein said method comprising:

• detecting a fault by said at least one processor in a system component coupled to said at least one processor;
• transmitting fault recovery information from said service processor test port to said processor test port;
• responsive to said transmitting, receiving said command at said processor test port;
• responsive to said receiving, writing information in conformance with said detected fault with said fault recovery information to a register within said at least one processor, wherein said register is dedicated for exchange of said fault recovery information between said operating system and said service processor;
• and
• responsive to said writing, reading information from said register to accomplish an exchange of said fault recovery information between said operating system and said service processor and providing said information to said service processor for taking an action in conformance with said detected fault;
• and
• responsive to said reading, correcting said fault.