arm64: Enable EPAN and IESB
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Authored by andrew on Jun 24 2025, 2:27 PM.

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emaste

imp

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manu

Group Reviewers

arm64

Commits

rG84d6c08584a5: arm64: Enable EPAN and IESB
rG68b3d0cbe034: arm64: Enable EPAN and IESB

Summary

These are both safe to enable. EPAN only affects PAN when it's enabled,
and IESB makes exception entry and exit an Implicit Error
Synchronization event.

Diff Detail

Repository

rG FreeBSD src repository

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Event Timeline

andrew created this revision.Jun 24 2025, 2:27 PM

Herald added a reviewer: manu. · View Herald TranscriptJun 24 2025, 2:27 PM

Herald added subscribers: emaste, imp. · View Herald Transcript

andrew requested review of this revision.Jun 24 2025, 2:27 PM

Harbormaster completed remote builds in B65054: Diff 157522.Jun 24 2025, 2:27 PM

andrew added a parent revision: D51012: arm64: Set the endian without a memory access.Jun 24 2025, 2:27 PM

This revision was not accepted when it landed; it landed in state Needs Review.Sep 19 2025, 10:37 AM

Closed by commit rG68b3d0cbe034: arm64: Enable EPAN and IESB (authored by andrew). · Explain Why

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rG68b3d0cbe034: arm64: Enable EPAN and IESB.

andrew added a commit: rG84d6c08584a5: arm64: Enable EPAN and IESB.Jan 14 2026, 12:55 AM

Revision Contents
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Path

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sys/

arm64/

include/

armreg.h

2 lines

Diff 162395

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sys/arm64/include/armreg.h

arm64: Enable EPAN and IESBClosedPublicActions