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Differential D54687

arm64/vmm: Set and use the fine-grained traps
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Authored by andrew on Jan 13 2026, 10:42 AM.
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manu
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arm64
Commits
rGe0fdcb8cafa2: arm64/vmm: Set and use the fine-grained traps
rGa4f0e93c5142: arm64/vmm: Set and use the fine-grained traps
Summary

Set the Fine-grained trap registers to trap any features we don't
support. These are expected to be more useful when we support nested
virtualisation, so for now just the base features and GICv3 are not
trapped.

As nested virtualisation will require VHE we only set the fine-grained
trap registers when VHE is used.

Sponsored by: Arm Ltd

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Repository
rG FreeBSD src repository
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Build Status
Buildable 69856
Build 66739: arc lint + arc unit

Revision Contents
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PathSize
sys/
arm64/
vmm/
16 lines
22 lines
405 lines

Diff 169565

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sys/arm64/vmm/arm64.h

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sys/arm64/vmm/vmm_hyp.c

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sys/arm64/vmm/vmm_reset.c

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