Isolating a central processing unit from the operating system co

Details Isolating a central processing unit from the operating system co Isolating a central processing unit from the operating system co

1994-10-19

1997-12-23

Lee, Thomas C.

395700, 395290, 395500, G06F 1520

Patent

active

057015023

ABSTRACT:
The functions of two virtual operating systems (e.g., S/370 VM and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. The S/370 processors are alien to the S/88 Operating System, i.e., not in its configuration tables. Means are provided to isolate partner pairs of S/88 processors from the S/88 Operating System and couple the S/88 processors directly to corresponding pairs of S/370 processors for interaction therewith, transparent to the S/88 Operating System.

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