Re: [PATCH 2/6] KVM: arm64: Handle all ID registers trapped for a protected VM

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On Thu, Jun 9, 2022 at 5:12 AM Will Deacon <will@xxxxxxxxxx> wrote:
>
> From: Marc Zyngier <maz@xxxxxxxxxx>
>
> A protected VM accessing ID_AA64ISAR2_EL1 gets punished with an UNDEF,
> while it really should only get a zero back if the register is not
> handled by the hypervisor emulation (as mandated by the architecture).
>
> Introduce all the missing ID registers (including the unallocated ones),
> and have them to return 0.
>
> Reported-by: Will Deacon <will@xxxxxxxxxx>
> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>

Reviewed-by: Reiji Watanabe <reijiw@xxxxxxxxxx>
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