Differential D59483

virtio/pci: Support virtio behind an IOMMU
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Authored by andrew on Sep 7 2026, 4:11 PM.

Project Tags

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Referenced Files

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Subscribers

imp

Details

Reviewers

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Group Reviewers

arm64
virtio

Summary

We need to pass the parent DMA tag to the child as it may not be the
default, e.g. when behind an IOMMU.

Diff Detail

Repository

rG FreeBSD src repository

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Unit

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Build Status

Buildable 76630
Build 73513: arc lint + arc unit

Event Timeline

andrew created this revision.Sep 7 2026, 4:11 PM

Herald added a subscriber: imp. · View Herald TranscriptSep 7 2026, 4:11 PM

Harbormaster completed remote builds in B76630: Diff 186134.Sep 7 2026, 4:11 PM

andrew requested review of this revision.Sep 7 2026, 4:11 PM

andrew added a parent revision: D59482: arm64: Add a wfe function.

andrew added a child revision: D59484: virtio: Support block and net behind an IOMMU.

andrew added a reviewer: virtio.Sep 7 2026, 4:24 PM

Revision Contents
Changeset List

Path

Size

sys/

dev/

virtio/

pci/

virtio_pci_modern.c

11 lines

Diff 186134

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sys/dev/virtio/pci/virtio_pci_modern.c

virtio/pci: Support virtio behind an IOMMUNeeds ReviewPublicActions