Virtual computer system

Details Virtual computer system Virtual computer system

2011-03-29

2011-03-29

Baderman, Scott T (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07917811

ABSTRACT:
To improve the maintainability of a virtual machine system, there is provided a mechanism capable of appropriately reporting a failure that occurs in a dedicated PCI device, in a shared PCI device, or in a virtual PCI device. A device for transferring PCI device configuration information between a failure monitoring application and a hypervisor that monitors a PCI device failure is prepared, and the failure monitoring application is operated in a user virtual machine and in a control virtual machine. Based on the above-described PCI device configuration information, the failure monitoring application operating in the user virtual machine monitors a dedicated PCI device failure and a virtual PCI device failure, and the failure monitoring application operating in the control virtual machine monitors a shared PCI device failure, respectively, thereby appropriately reporting a failure of the dedicated PCI device, the shared PCI device, or the virtual PCI device without duplication.

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