Differential D51819

arm64: Add more counter/timer registers
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Authored by andrew on Aug 8 2025, 12:21 PM.

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manu

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arm64

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rGe38e04a0ba3f: arm64: Add more counter/timer registers

Summary

These will be used to support the Enhanced Counter Virtualization
Extensions: FEAT_ECV and FEAT_ECV_POFF. The former adds
Self-Synchronized registers, and the latter adds support for an offset
for the physical counter.

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Repository

rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

andrew created this revision.Aug 8 2025, 12:21 PM

Herald added a reviewer: manu. · View Herald TranscriptAug 8 2025, 12:21 PM

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

andrew requested review of this revision.Aug 8 2025, 12:21 PM

Harbormaster completed remote builds in B66099: Diff 160046.Aug 8 2025, 12:21 PM

andrew added a parent revision: D51818: arm64/vmm: Remove support for reading CNTHCTL_EL2.Aug 8 2025, 12:21 PM

andrew added a child revision: D51820: arm: Use the Self-Synchronized counter registers.

This revision was not accepted when it landed; it landed in state Needs Review.Sep 23 2025, 5:10 PM

Closed by commit rGe38e04a0ba3f: arm64: Add more counter/timer registers (authored by andrew). · Explain Why

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rGe38e04a0ba3f: arm64: Add more counter/timer registers.

Revision Contents
Changeset List

Path

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sys/

arm64/

include/

armreg.h

32 lines

Diff 162668

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sys/arm64/include/armreg.h

arm64: Add more counter/timer registersClosedPublicActions