Re: [PATCH v23 13/14] KVM: arm64: Mandate VGIC v3 for pKVM VMs and Realms

[Fuad Tabba]

Hi Suzuki,

On Wed, 07 Oct 2026 08:35:36 +0100, Suzuki K Poulose
<suzuki.poulose@xxxxxxx> wrote:
> pKVM does not trust the host. Realm VMs follow a similar trust model, with
> the Realm Management Monitor owning the protected state instead of the
> host. Add a helper to identify VMs that run under a host-distrusting
> hypervisor.

When I reviewed this in v21, the Realm patches that use this came
later in the same series. Without them, kvm_vm_hyp_is_distrusting() is
true exactly when is_protected_kvm_enabled() is, and protected mode
already doesn't register a GICv2, so this patch doesn't change
anything on its own. Should it move to the series that adds Realms?

Cheers,
/fuad