arm64: Support counter access with E2H
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Authored by andrew on Fri, Jun 7, 2:25 PM.

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Summary

When entering the kernel with the E2H field set the layout of the
cnthctl_el2 register changes. Use the correct field locations to enable
access to the counter and timer registers from EL1.

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Repository

rG FreeBSD src repository

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Build Status

Buildable 58102
Build 54990: arc lint + arc unit

Event Timeline

andrew created this revision.Fri, Jun 7, 2:25 PM

Herald added a reviewer: manu. · View Herald TranscriptFri, Jun 7, 2:25 PM

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

andrew requested review of this revision.Fri, Jun 7, 2:25 PM

andrew added a parent revision: D45528: arm64: Ensure sctlr and pstate are in known states.

Harbormaster completed remote builds in B58102: Diff 139624.Fri, Jun 7, 2:26 PM

andrew added a child revision: D45530: arm64: Fix the gicv3 check in locore.S.Fri, Jun 7, 2:27 PM

Revision Contents
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Path

Size

sys/

arm64/

locore.S

6 lines

include/

hypervisor.h

9 lines

Diff 139624

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sys/arm64/arm64/locore.S