Re: [PATCH 0/2] arm: add kvm-psci-version vcpu property

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On Thu, 11 Sept 2025 at 15:49, Sebastian Ott <sebott@xxxxxxxxxx> wrote:
>
> This series adds a vcpu knob to request a specific PSCI version
> from KVM via the KVM_REG_ARM_PSCI_VERSION FW register.
>
> Note: in order to support PSCI v0.1 we need to drop vcpu
> initialization with KVM_CAP_ARM_PSCI_0_2 in that case.
> Alternatively we could limit support to versions >=0.2 .
>
> Sebastian Ott (2):
>   target/arm/kvm: add constants for new PSCI versions
>   target/arm/kvm: add kvm-psci-version vcpu property

Could we have some rationale, please? What's the use case
where you might need to specify a particular PSCI version?

thanks
-- PMM




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