Remove unneeded masks from the arm64 KASAN shadow
ClosedPublic
Actions

Authored by andrew on Apr 21 2023, 3:55 PM.

Tags

None

Referenced Files

	Unknown Object (File)
	May 2 2024, 5:21 PM

	Unknown Object (File)
	May 2 2024, 5:04 PM

	Unknown Object (File)
	May 2 2024, 2:56 PM

	Unknown Object (File)
	May 2 2024, 1:20 PM

	Unknown Object (File)
	Apr 27 2024, 10:50 PM

	Unknown Object (File)
	Jan 18 2024, 1:19 PM

	Unknown Object (File)
	Jan 5 2024, 5:47 PM

	Unknown Object (File)
	Dec 20 2023, 8:35 AM

View All 16 Files

Subscribers

emaste

imp

Details

Reviewers

kevans
manu

Group Reviewers

arm64

Commits

rG1bf4991bbc2c: Remove unneeded masks from the arm64 KASAN shadow

Summary

When mapping the arm64 KASAN shadow map we use Ln_TABLE_MASK to align
physical addresses, however these should already be aligned either
by rounding to a greater alignment, or the VM subsystem is giving us
a correctly aligned page.

Remove these extra alignment masks.

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

andrew created this revision.Apr 21 2023, 3:55 PM

Herald added a reviewer: manu. · View Herald TranscriptApr 21 2023, 3:55 PM

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

andrew requested review of this revision.Apr 21 2023, 3:55 PM

Harbormaster completed remote builds in B51095: Diff 120817.Apr 21 2023, 3:55 PM

kevans accepted this revision as: kevans.Apr 21 2023, 4:03 PM

This revision is now accepted and ready to land.Apr 21 2023, 4:03 PM

Closed by commit rG1bf4991bbc2c: Remove unneeded masks from the arm64 KASAN shadow (authored by andrew). · Explain WhyApr 24 2023, 11:34 AM

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rG1bf4991bbc2c: Remove unneeded masks from the arm64 KASAN shadow.

Revision Contents
Changeset List

Path

Size

sys/

arm64/

pmap.c

6 lines

Diff 120920

View Options

Remove unneeded masks from the arm64 KASAN shadowClosedPublicActions