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

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andreiltd wants to merge 34 commits into

hyperlight-dev:mainfrom

andreiltd:virtq-takeover

Commits on Aug 11, 2026

feat(virtq): add external byte transport foundations
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3446734
feat(virtq): add external function value codecs
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120e67b
feat(virtq): add stateful chain byte streams
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e0a51c0
refactor(virtq): remove reset api and harden allocation rollback
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e1342f2
feat(virtq): add tiered fixed slot allocation
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4b23b8e
feat(virtq): add canonical packed ring images
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ab25a50
refactor(layout): model scratch-top metadata
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f2274f1
fix(guest): correct scratch allocator boundary
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f2c3f46
feat(virtq): define virtq transport metadata
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a12ee21
feat(virtq): implement host side memory access
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3e81faa
feat(virtq): configure transport geometry
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c0e53a5
feat(virtq): initialize runtime transport
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e9bce77
feat(snapshot): preserve canonical virtq state
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a5709e0
feat(virtq): implement guest-to-host virtqueue transport
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738caaa
feat(virtq): remove legacy guest-to-host stack transport
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76d078f
feat(virtq): use virtqueues for guest comms
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69a63ed
feat(virtq): purge input/output regions
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d691500
feat(virtq): optimize inflight bookkeeping memory
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0b588db
feat(virtq): checkpoint dirty queues for snapshots
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90126c2
feat(virtq): reject snapshots with retained buffers
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99059d1
feat(virtq): add C guest `ByteChunks`
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241e9c6
fix: cleanup after rebase
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dc031b2
fix(virtq): adjust scratch budget
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87f9232
refactor(virtq) adjust virtio terminology
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1086386
fix: typo
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f6779c0
fix(virtq): address clippy warnings in release builds
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799cec0
fix(virtq): use checked arithmetic in ExternalValueRefs
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29b84b0

Commits on Aug 12, 2026

refactor: some stylish tweaks
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6fe392a
fix: adjust test scratch size
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e3b4d38
fix(virtq): accept transport error in fuzzing
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153d425

Commits on Aug 13, 2026

fix: increas fuzzing heap size
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a4cea75
feat(virtq): use grouped allocation for virtq chains
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7874cb1
fix: adjust test heap sizes
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ff376f3

Commits on Aug 14, 2026

fix: some docs improvements
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40c1815