KVM Forum 2021 has ended
Virtual Event | September 15-16, 2021
View More Details

The Sched app allows you to build your schedule but is not a substitute for your event registration. In addition, you must be registered for KVM Forum to participate in the sessions. If you have not registered but would like to join us, please go to the event registration page to purchase a registration.

This schedule is automatically displayed in Coordinated Universal Time (UTC)Please select from the drop-down menu to the right to see the schedule in your preferred timezone above "Filter by Date."
Back To Schedule
Wednesday, September 15 • 05:00 - 05:25
Sharing IOMMU PageTables with TDP in KVM - Lu Baolu & Zhao Yan, Intel Corporation

Sign up or log in to save this to your schedule, view media, leave feedback and see who's attending!

Feedback form is now closed.
With assigned devices, IOMMU page tables actually hold the same mappings as TDP in KVM if IOMMU shadowed page table is not required. Sharing IOMMU page tables with TDP has the advantages of reduced memory footprint, unified page table for dirty page tracking during migration and page fault handling, probably higher performance by reducing unnecessary EPT/NPT zap, EPT/NPT pre-population, etc… This topic researches the challenges in both KVM and IOMMU subsystems and proposes an architecture to achieve this.


Lu Baolu

Senior Software Engineer, Intel Corporation
Baolu, employed by Intel, is the Linux kernel maintainer for Intel VT-d implementation. In recent years, he focused on technologies such as thunderbolt vulnerabilities, scalable I/O virtualization and shared virtual address.

Yan Zhao

Senior Software Engineer, Intel Corporation
Yan, employed by Intel, has more than 10 years experiences in virtualization software development. In recent yeas, she focused on KVM and Linux kernel support for device direct assignment.

Wednesday September 15, 2021 05:00 - 05:25 UTC
  KVM Track 1
  • Presentation Slides Attached Yes