feat: implement virtio based host-guest communication - #1717

Closed

andreiltd wants to merge 19 commits into

hyperlight-dev:virtq-foundationsfrom

andreiltd:virtq-takeover

Commits on Sep 3, 2026

feat(virtq): implement guest-to-host virtqueue transport
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07ab719
feat(virtq): remove legacy guest-to-host stack transport
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abfb986
feat(virtq): use virtqueues for guest comms
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efcbbd0
feat(virtq): purge input/output regions
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25811a8
feat(virtq): optimize inflight bookkeeping memory
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d66104a
feat(virtq): checkpoint dirty queues for snapshots
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e8e94b8
feat(virtq): reject snapshots with retained buffers
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9f28581
feat(virtq): add C guest `ByteChunks`
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d21b467
fix(virtq): adjust scratch budget
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23d5461
fix(virtq): address clippy warnings in release builds
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c5a23ee
fix(virtq): use checked arithmetic in ExternalValueRefs
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bf5d98a
refactor: some stylish tweaks
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3871d0b
fix: adjust test scratch size
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6241394
fix(virtq): accept transport error in fuzzing
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f1586b9
fix: increas fuzzing heap size
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3a4a3e3
fix: adjust test heap sizes
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6388ff8
fix: some docs improvements
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f17db64
fix: adjust snapshot restore test heap sizes
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0d737e2
feat(virtq): remove, now dead, hlbytechunks and hlsizeprefixedbytechunks
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55942a2