KVM: arm64: Use HCR_EL2 feature map to drive fixed-value bits

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Similarly to other registers, describe which HCR_EL2 bit depends
on which feature, and use this to compute the RES0 status of these
bits.

An additional complexity stems from the status of some bits such
as E2H and RW, which do not had a RESx status, but still take
a fixed value due to implementation choices in KVM.

Signed-off-by: Marc Zyngier <maz@kernel.org>

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Marc Zyngier 2025-02-04 10:46:41 +00:00

parent beed444841

commit b2a324ff01

2 changed files with 150 additions and 37 deletions

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149

arch/arm64/kvm/config.c

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38

arch/arm64/kvm/nested.c

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