arm64: Move the initial kernel stack out of the init_pagetables section
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Authored by markj on Mar 31 2023, 1:49 PM.

Details

Reviewers

andrew
manu

Group Reviewers

arm64

Commits

rG263fa9ba098e: arm64: Move the initial kernel stack out of the init_pagetables section
rG1a3cb489e5aa: arm64: Move the initial kernel stack out of the init_pagetables section

Summary

init_pagetables is mapped into the segment containing the BSS, but does
not get zeroed by locore. It is used for bootstrap page table pages.

It happens that the bootstrap kernel stack is also placed in that
section, but there's no reason it shouldn't live in the BSS, so move it
there. No functional change intended.

Diff Detail

Repository

rG FreeBSD src repository

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Unit

Tests Skipped

Build Status

Buildable 50706
Build 47597: arc lint + arc unit

Event Timeline

markj created this revision.Mar 31 2023, 1:49 PM

Herald added a reviewer: manu. · View Herald TranscriptMar 31 2023, 1:49 PM

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

markj requested review of this revision.Mar 31 2023, 1:49 PM

Harbormaster completed remote builds in B50706: Diff 119713.Mar 31 2023, 1:49 PM

markj mentioned this in D39343: arm64: Ensure that thread0's PCB flags are initialized.Mar 31 2023, 1:49 PM

andrew accepted this revision.Mar 31 2023, 2:44 PM

This revision is now accepted and ready to land.Mar 31 2023, 2:44 PM

Closed by commit rG1a3cb489e5aa: arm64: Move the initial kernel stack out of the init_pagetables section (authored by markj). · Explain WhyMar 31 2023, 3:58 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rG1a3cb489e5aa: arm64: Move the initial kernel stack out of the init_pagetables section.

markj added a commit: rG263fa9ba098e: arm64: Move the initial kernel stack out of the init_pagetables section.Apr 11 2023, 2:10 PM

Revision Contents
Changeset List

Path

Size

sys/

arm64/

locore.S

13 lines

Diff 119713

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arm64: Move the initial kernel stack out of the init_pagetables sectionClosedPublicActions