Page MenuHomeFreeBSD
Differential D54832

arm/gic: Detect broken configurations
ClosedPublic
Actions

Authored by andrew on Jan 23 2026, 12:10 PM.
Tags
None
Referenced Files
F163865062: D54832.diff
Sun, Jul 26, 5:11 PM
Unknown Object (File)
Thu, Jul 23, 1:55 AM
Unknown Object (File)
Tue, Jul 21, 1:14 AM
Unknown Object (File)
Mon, Jul 20, 3:56 PM
Unknown Object (File)
Mon, Jul 20, 1:44 AM
Unknown Object (File)
Thu, Jul 16, 7:39 AM
Unknown Object (File)
Wed, Jul 15, 7:03 AM
Unknown Object (File)
Wed, Jul 15, 7:03 AM
View All 70 Files
Subscribers
emaste
imp

Details

Reviewers
emaste
Group Reviewers
ARM
arm64
Commits
rGbcb8b267f323: arm/gic: Detect broken configurations
rG6c5fdba45a63: arm/gic: Detect broken configurations
Summary

Some virtualization platforms provide broken configurations. There
is a GIC interrupt controller, however accessing the CPU interface
registers leads to an external data abort. As these are needed to
handle interrupts we are unable to boot further.

Detect this misconfiguration and panic to tell the user the issue.

Sponsored by: Arm Ltd

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable

Event Timeline

andrew created this revision.Jan 23 2026, 12:10 PM
Herald added a subscriber: imp. · View Herald TranscriptJan 23 2026, 12:10 PM
andrew requested review of this revision.Jan 23 2026, 12:10 PM
Harbormaster completed remote builds in B70069: Diff 170264.Jan 23 2026, 12:10 PM
emaste accepted this revision as: emaste.Jan 23 2026, 1:23 PM
emaste added a subscriber: emaste.
emaste added inline comments.
sys/arm/arm/gic.c
362

or "broken hypervisor or hardware configuration"?

This revision is now accepted and ready to land.Jan 23 2026, 1:23 PM
Closed by commit rG6c5fdba45a63: arm/gic: Detect broken configurations (authored by andrew). · Explain WhyJan 23 2026, 5:04 PM
This revision was automatically updated to reflect the committed changes.
andrew added a commit: rG6c5fdba45a63: arm/gic: Detect broken configurations.
andrew added a commit: rGbcb8b267f323: arm/gic: Detect broken configurations.Feb 9 2026, 4:34 PM

Revision Contents
Changeset List

PathSize
sys/
arm/
arm/
15 lines

Diff 170273

View Options

sys/arm/arm/gic.c

Loading...