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Circuit arrangement capable of quickly processing an interrupt in a virtual machine operated by a plurality of operating systems

  • US 4,837,674 A
  • Filed: 02/09/1987
  • Issued: 06/06/1989
  • Est. Priority Date: 02/10/1986
  • Status: Expired due to Fees
First Claim
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1. A circuit arrangement for use in a virtual machine which comprises a main memory connected to an input/output device, and a plurality of execution processing units and which is operable in accordance with a plurality of operating systems, said circuit arrangement being responsive to an interrupt request which indicates an interrupt processing operation to be carried out in a preselected one of said execution processing units, wherein the circuit arrangement comprises:

  • first means included in said input/output device for supplying said interrupt request simultaneously to each of said execution processing units so that only a receivable one of said execution processing units responds to said interrupt request; and

    second means included in each of said execution processing units and coupled to said main memory and interruption reception circuit of the other execution processing unit, said second means of said receivable processing unit cooperating with a control program in said main memory for generating an interrupt start signal for directly starting said interrupt processing operation in said preselected one of the execution processing units when said receivable one o the execution processing units is different from said preselected one of the execution processing units.

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