Differential D31308

bhyve: Use pci(4) to access I/O port BARs
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Authored by markj on Jul 26 2021, 4:45 PM.

Details

Reviewers

jhb

Group Reviewers

bhyve

Commits

rG42375556e5b2: bhyve: Use pci(4) to access I/O port BARs

Summary

This removes the dependency on /dev/io, which cannot be used in jails.

PR: 251046

Test Plan

I passed a realtek NIC through to a FreeBSD VM and configured hw.re.prefer_iomap=1
in the guest, to make it use I/O port BARs. I did some quick tests with iperf through the
passed-through NIC.

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

markj created this revision.Jul 26 2021, 4:45 PM

Herald added a reviewer: bhyve. · View Herald TranscriptJul 26 2021, 4:45 PM

Herald added subscribers: bcran, jonathan, rgrimes, imp. · View Herald Transcript

markj requested review of this revision.Jul 26 2021, 4:45 PM

Harbormaster completed remote builds in B40677: Diff 92747.Jul 26 2021, 4:45 PM

markj added a parent revision: D31307: pci: Add ioctls to perform I/O to I/O port BARs.Jul 26 2021, 4:46 PM

markj edited the test plan for this revision. (Show Details)Jul 26 2021, 4:47 PM

markj mentioned this in D31307: pci: Add ioctls to perform I/O to I/O port BARs.

Rebase

Harbormaster completed remote builds in B40680: Diff 92752.Jul 26 2021, 6:16 PM

jhb accepted this revision.Jul 29 2021, 10:45 PM

This revision is now accepted and ready to land.Jul 29 2021, 10:45 PM

Closed by commit rG42375556e5b2: bhyve: Use pci(4) to access I/O port BARs (authored by markj). · Explain WhyAug 14 2021, 3:01 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rG42375556e5b2: bhyve: Use pci(4) to access I/O port BARs.

Revision Contents
Changeset List

Path

Size

usr.sbin/

bhyve/

pci_passthru.c

65 lines

Diff 93685

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usr.sbin/bhyve/pci_passthru.c

bhyve: Use pci(4) to access I/O port BARsClosedPublicActions