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OPTIMIZED INTERRUPT DELIVERY IN A VIRTUALIZED ENVIRONMENT
OPTIMIZED INTERRUPT DELIVERY IN A VIRTUALIZED ENVIRONMENT
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机译:虚拟化环境中的优化中断传输
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摘要
Various operations are disclosed for improving the operational efficiency of interrupt handling in a virtualized environment. A virtualized interrupt controller may obviate the need for an explicit end-of-interrupt command by providing an automatic EOI capability even when a physical interrupt controller offers no such mechanism. The use of a message pending bit for inter-partition communications facilitates avoiding an EOI command of inter-processor interrupts used in inter-partition communications whenever no further messages are cued for a particular message slot. A virtualized interrupt controller facilitates the selective EOI of an interrupt even when it is not the highest priority in-service interrupt irrespective of whether a physical interrupt controller provides such functionality.
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