Sharing IOMMU PageTables with TDP in KVM

Sharing IOMMU PageTables with TDP in KVM

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Page & Page Table Pinning Interfaces . For sharing without 10 page fault, - Pinning of all ranges in user memslots: memslot add - Pinning a specific range extra interface

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12 of 14

Page & Page Table Pinning Interfaces . For sharing without 10 page fault, - Pinning of all ranges in user memslots: memslot add - Pinning a specific range extra interface

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Sharing IOMMU PageTables with TDP in KVM

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  1. 1 Intro
  2. 2 Agenda
  3. 3 Goal
  4. 4 Sharing Advantages
  5. 5 Sharing Prerequisites
  6. 6 The Same Address Space (Cont.)
  7. 7 Compatible Page Table Formats
  8. 8 Sharing Handshake Sequence
  9. 9 Non-conflicting Page Table Content (Cont.)
  10. 10 Sharing Interfaces
  11. 11 Atomic Update for TDP Entries Atomia update is required for TOP entries for pinned ranges, when
  12. 12 Page & Page Table Pinning Interfaces . For sharing without 10 page fault, - Pinning of all ranges in user memslots: memslot add - Pinning a specific range extra interface
  13. 13 Shared Page Table Root Update
  14. 14 Bootup Performance

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