Detect the presence of the Realm Services Interface (RSI). This detection is
performed early in bootup; PSCI initialisation has been moved to initarm() to
faciliate this.

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rG FreeBSD src repository

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Build Status

Buildable 72464
Build 69347: arc lint + arc unit

Event Timeline

sarah.walker2_arm.com created this revision.Apr 23 2026, 10:29 AM

Herald added a reviewer: andrew. · View Herald TranscriptApr 23 2026, 10:29 AM

Herald added a reviewer: andrew. · View Herald Transcript

Herald added a reviewer: manu. · View Herald Transcript

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sarah.walker2_arm.com requested review of this revision.Apr 23 2026, 10:29 AM

Harbormaster completed remote builds in B72464: Diff 176243.Apr 23 2026, 10:29 AM

sarah.walker2_arm.com added a child revision: D56599: arm64: VM/PMAP changes for CCA guest support.Apr 23 2026, 10:30 AM

sarah.walker2_arm.com mentioned this in D56520: arm64: Add CCA guest support.Apr 23 2026, 10:31 AM

andrew added inline comments.Apr 23 2026, 4:12 PM

sys/arm64/arm64/rsi.c
44–52	Are these are needed?
sys/dev/psci/psci.h
49	This is defined on both arm and arm64

Remove unnecessary #includes, remove unncessary aarch64 guard

Harbormaster completed remote builds in B72487: Diff 176273.Apr 23 2026, 5:26 PM

Just style

sys/arm64/arm64/rsi.c
51–52	And again below
56	I think this can use `arm_smccc_invoke_smc` to remove the `0` arguments
58–61

Address review comments.

Harbormaster completed remote builds in B72855: Diff 177315.May 6 2026, 4:17 PM

andrew accepted this revision.May 8 2026, 2:51 PM

This revision is now accepted and ready to land.May 8 2026, 2:51 PM

Closed by commit rG76a2904c352b: arm64: Add RSI detection for CCA. · Explain WhyMay 12 2026, 4:56 PM

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rG76a2904c352b: arm64: Add RSI detection for CCA.

Revision Contents
Changeset List

Path

Size

sys/

arm64/

machdep.c

5 lines

pmap.c

2 lines

rsi.c

192 lines

include/

pmap.h

3 lines

rsi.h

129 lines

conf/

files.arm64

1 line

dev/

psci/

psci.h

5 lines

psci.c

11 lines

kern/

subr_physmem.c

6 lines

sys/

physmem.h

1 line

Diff 176243

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sys/arm64/arm64/machdep.c

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sys/arm64/arm64/pmap.c

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sys/arm64/arm64/rsi.c

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sys/arm64/include/pmap.h

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sys/arm64/include/rsi.h

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sys/conf/files.arm64

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sys/dev/psci/psci.h

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sys/dev/psci/psci.c

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sys/kern/subr_physmem.c

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arm64: Add RSI detection for CCAClosedPublicActions

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Revision ContentsChangeset List

Diff 176243

sys/arm64/arm64/machdep.c

sys/arm64/arm64/pmap.c

sys/arm64/arm64/rsi.c

sys/arm64/include/pmap.h

sys/arm64/include/rsi.h

sys/conf/files.arm64

sys/dev/psci/psci.h

sys/dev/psci/psci.c

sys/kern/subr_physmem.c

sys/sys/physmem.h

arm64: Add RSI detection for CCA
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