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October 24-26, 2018 - Edinburgh, Scotland, UK
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Friday, October 26 • 11:30 - 12:00
Shared Virtual Addressing in KVM - Yi Liu & Jacob Pan, Intel Corporation

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Shared Virtual Addressing in KVM (Liu Yi, Intel) - Shared Virtual Addressing (SVA) is a hardware extension to allow device directly accessing CPU virtual address, thus enables efficient workload submission on accelerators. SVA requires support in PCI bus, endpoint device and IOMMU, which has been made available by major hardware vendors (Intel, AMD, ARM, etc.). Then it becomes a hot area in cloud and data center, where same level of efficiency is expected when those accelerators are assigned to VMs.

This talk will first provide an overview of SVA and then the envisioned architecture of virtualizing SVA in KVM. Following that will be a deep dive of main SVA working flow cross multiple kernel/user components (Qemu, VFIO, IOMMU, etc.), especially about how to design neutral kernel APIs to work with different IOMMU vendors and also different vIOMMU models (emulated or para-virtualized).

Speakers
avatar for Yi Liu

Yi Liu

Software Engineer, Intel Corporation
Yi is a software engineer from Intel Virtualization team, focusing on I/O virtualization technology. He works on Shared Virtual Memory, Scalable IOV and vIOMMU stuffs in recent years. He has been invited to give presentation at LPC 2017, LinuxCon Beijing 2018 and KVM Forum 2018, Intel... Read More →
avatar for Jacob Pan

Jacob Pan

Linux Kernel Developer, Intel Corporation
Jacob is a veteran Linux kernel developer at Intel. His most recent interest and work are on Shared Virtual Address/Memory as well as the IOMMU subsystem in general.Prior to that, Jacob contributed to power management, device drivers, interrupt, timers, and X86 core.



Friday October 26, 2018 11:30 - 12:00 BST
Fintry Auditorium