发明名称 |
METHOD AND DEVICE FOR IMPLEMENTING LOGICAL PARTITION OF PCI INPUT/OUTPUT SLOT |
摘要 |
PROBLEM TO BE SOLVED: To provide a method and a system for implementing logical partition of an input/output slot in a data processing system, and a computer.program product. SOLUTION: In one form of implementation, this system includes a hypervisor and at least one DMA address inspecting component. The hypervisor receives an indirect memory.access demand regarding access to an input/output slot, and prohibits a device in a certain logical section from accessing to an input/ output slot assigned to a different logical section. The DMA address inspecting component receives a direct memory.access demand, and prohibits completion of a demand regarding an address which is not in the same logical section for the device of a requester. A demand regarding an address corresponding to the same logical section for the device of the requester is placed in a primary PCI bus by the DMA address inspecting component for transmission of a system.memory.
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申请公布号 |
JP2002304364(A) |
申请公布日期 |
2002.10.18 |
申请号 |
JP20020042190 |
申请日期 |
2002.02.19 |
申请人 |
INTERNATL BUSINESS MACH CORP <IBM> |
发明人 |
DAWKINS GEORGE JOHN;LEE VAN HOA;RANDALL DAVID LEE;TRAN KIET ANH |
分类号 |
G06F13/14;G06F13/28;(IPC1-7):G06F13/14 |
主分类号 |
G06F13/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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