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Add support for IPIv
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#IBPH85
内核需求
yjq
Opened this issue
2025-02-27 17:29
【特性描述】从使用者视角简要说明特性的功能(尽量使用正向表达方式) IPIv,全称Inter-Processor Interrupt vietualization。此特性目的是为了在GICv4.1的基础上对vSGI(Virtual Software Generated Interrupt)作进一步的优化。vSGI在发送侧的vCPU需要trap到Hypervisor中,IPIv特性使得不需要trap即可发送,由此提升性能。 【特性收益】简要说明该特性解决的问题,或带来的收益。(可选) 特性避免在发送vSGI时trap到Hypervisor,提升虚机性能,减小资源消耗。 特性在host为可选特性,由cmdline进行配置,分为两种模式: IPIv特性indirect模式:通过vm table获取vPEID; IPIv特性direct模式:根据mpidr直接计算vPEID。
【特性描述】从使用者视角简要说明特性的功能(尽量使用正向表达方式) IPIv,全称Inter-Processor Interrupt vietualization。此特性目的是为了在GICv4.1的基础上对vSGI(Virtual Software Generated Interrupt)作进一步的优化。vSGI在发送侧的vCPU需要trap到Hypervisor中,IPIv特性使得不需要trap即可发送,由此提升性能。 【特性收益】简要说明该特性解决的问题,或带来的收益。(可选) 特性避免在发送vSGI时trap到Hypervisor,提升虚机性能,减小资源消耗。 特性在host为可选特性,由cmdline进行配置,分为两种模式: IPIv特性indirect模式:通过vm table获取vPEID; IPIv特性direct模式:根据mpidr直接计算vPEID。
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