| 摘要 |
PROBLEM TO BE SOLVED: To provide a virtual computer system to attain continuation of all operations on a virtual computer constructed under an operating system even when a failure is generated in the operating system operating on an actual computer. SOLUTION: When a failure is generated in a host OS 110 to simulate virtual computers 120a to 120c, an operation continuation module 112 rearranges a memory page on an actual computer 100 to make it coincident with a page table owned, for example, by a guest OS 13a operating on the virtual computer 120a, resets the state of hardware on the actual computer 100 to make it coincident with input/output device setting information owned by the guest OS 130a, and then transfers the guest OS 130a from the virtual computer 120a to the actual computer 100, continues its operation and simulation of the virtual computers 120b to 120c.
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