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Fast and Scalable VMM Live Upgrade in Large Cloud Infrastructure #10

Closed liujunming closed 10 months ago

liujunming commented 2 years ago

ASPLOS’19 https://www.cs.fsu.edu/~zwang/files/asplos19.pdf https://developer.aliyun.com/ask/355200

liujunming commented 10 months ago
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liujunming commented 10 months ago
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liujunming commented 10 months ago
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liujunming commented 10 months ago
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liujunming commented 10 months ago
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liujunming commented 10 months ago
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liujunming commented 10 months ago
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liujunming commented 10 months ago

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值得注意的是：论文中的提到的irqfd不是当前社区使用的irqfd，应该也没有使用IOMMU interrupt remapping or IOMMU interrupt posting。直通设备发来中断后，KVM通过event fd通知QEMU,QEMU会poll这个fd。当fd可读时，QEMU就知道直通设备发来了中断，然后做相应的处理。

如果以社区当前的irqfd含义去阅读，会无法理解论文中的这部分描述。

liujunming commented 8 months ago

https://kvmforum2022.sched.com/event/15jLR/deep-optimization-of-vmm-live-upgrade-shenming-lu-bytedance kvm forum 2022 字节 vmm热升级的相关工作