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Differential D57990

amr64: Switch from PV_MTE_TAGGED to PV_MTE_CLEAN
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Authored by andrew on Jul 1 2026, 10:10 AM.
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Details

Reviewers
manu
Group Reviewers
arm64
Summary

The new flag marks pages where the MTE tags are known to have be zeroed
so don't need to be swapped out. This moved clearing the tags together
with clearing the page and only requires managing the per-page flag
when creating a MTE mapping.

Sponsored by: Arm Ltd

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 74452
Build 71335: arc lint + arc unit

Revision Contents
Changeset List

PathSize
sys/
arm64/
arm64/
18 lines
67 lines
include/
2 lines

Diff 181162

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sys/arm64/arm64/mte.c

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sys/arm64/arm64/pmap.c

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sys/arm64/include/pmap.h

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