arm64: Enable pointer authentication with QARMA3
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Authored by andrew on Apr 8 2025, 11:23 AM.

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manu

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arm64

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rGfe55780e5f10: arm64: Enable pointer authentication with QARMA3

Summary

When the QARMA3 algorithm is used the ID_AA64ISAR2_EL1.APA3 field is
non-zero. Include this in the check for enabling pointer auth.

Diff Detail

Repository

rG FreeBSD src repository

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Build Status

Buildable 63797
Build 60681: arc lint + arc unit

Event Timeline

andrew created this revision.Apr 8 2025, 11:23 AM

Herald added a reviewer: manu. · View Herald TranscriptApr 8 2025, 11:23 AM

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

andrew requested review of this revision.Apr 8 2025, 11:23 AM

Harbormaster completed remote builds in B63387: Diff 153319.Apr 8 2025, 11:23 AM

This looks reasonable. Is it worth a comment on the ID_AA64ISAR1_EL1 and ID_AA64ISAR2_EL1 blocks?

Add comments for why we check each register

Harbormaster completed remote builds in B63797: Diff 154542.Apr 30 2025, 11:26 AM

Rebase and add a comment above update_special_reg

Harbormaster completed remote builds in B64593: Diff 156415.Jun 2 2025, 11:00 AM

This revision was not accepted when it landed; it landed in state Needs Review.Jun 23 2025, 4:34 PM

Closed by commit rGfe55780e5f10: arm64: Enable pointer authentication with QARMA3 (authored by andrew). · Explain Why

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rGfe55780e5f10: arm64: Enable pointer authentication with QARMA3.

Revision Contents
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sys/

arm64/

ptrauth.c

27 lines

Diff 154542

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arm64: Enable pointer authentication with QARMA3ClosedPublicActions