x86/xen: set the ACPI RSDP kenv hint earlier for PVH
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Authored by royger on Jun 28 2022, 4:00 PM.

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Subscribers

imp

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Reviewers

cperciva
imp

Summary

When booting using the PVH entry point set the ACPI RSPD hint in kenv
as soon as the static kenv is initialized, there's no reason to delay
setting it.

Reported by: cpercival
Sponsored by: Citrix Systems R&D

Diff Detail

Repository

rS FreeBSD src repository - subversion

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Lint Passed

Unit

No Test Coverage

Build Status

Buildable 46154
Build 43043: arc lint + arc unit

Event Timeline

royger created this revision.Jun 28 2022, 4:00 PM

Herald added subscribers: ehem_freebsd_m5p.com, imp. · View Herald TranscriptJun 28 2022, 4:00 PM

royger requested review of this revision.Jun 28 2022, 4:00 PM

Harbormaster completed remote builds in B46154: Diff 107484.Jun 28 2022, 4:00 PM

imp accepted this revision.Jun 28 2022, 5:48 PM

This revision is now accepted and ready to land.Jun 28 2022, 5:48 PM

Doesn't help with Firecracker; turns out they don't do ACPI so RSDP is just set to zero there. No objection to the change if you think it will help elsewhere though.

BTW I'm cperciva, not cpercival. ;-)

ehem_freebsd_m5p.com removed a subscriber: ehem_freebsd_m5p.com.Jun 28 2022, 11:26 PM

Nah, I guess there's no need to move it, so I will keep as-is to avoid code churn. Sorry for the alias mess :).

Revision Contents
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Path

Size

sys/

x86/

xen/

pv.c

11 lines

Diff 107484

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x86/xen: set the ACPI RSDP kenv hint earlier for PVHAbandonedPublicActions