arm64: Add PROT_MTE to mmap
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Authored by andrew on Mar 19 2026, 4:06 PM.

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	F156448692: D55956.diff
	Wed, May 13, 6:31 PM

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Subscribers

emaste

imp

Details

Reviewers

manu

Group Reviewers

arm64

Summary

TODO: Needs checks to limit where it can be used, e.g. only
anonymous memory, & can't be shared between processes.

Diff Detail

Repository

rG FreeBSD src repository

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Lint Skipped

Unit

Tests Skipped

Build Status

Buildable 71537
Build 68420: arc lint + arc unit

Event Timeline

andrew created this revision.Mar 19 2026, 4:06 PM

Herald added a reviewer: manu. · View Herald TranscriptMar 19 2026, 4:06 PM

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

andrew requested review of this revision.Mar 19 2026, 4:06 PM

Harbormaster completed remote builds in B71537: Diff 173926.Mar 19 2026, 4:06 PM

andrew added a parent revision: D55955: arm64: mte: copy/save tags on copy-on-write.Mar 19 2026, 4:06 PM

andrew added a child revision: D55957: vm: Support swapping arm64 MTE tags.

This is not complete, but would be useful to get feedback on the approach

Revision Contents
Changeset List

Path

Size

sys/

arm64/

pmap.c

10 lines

sys/

mman.h

8 lines

Diff 173926

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sys/arm64/arm64/pmap.c