Re: [PATCH 0/3] KVM: arm64: pKVM is_created cleanup

[Keir Fraser]

On Thu, Jun 18, 2026 at 10:01:25AM +0100, Fuad Tabba wrote:
> This small series tidies up the host-side kvm->arch.pkvm.is_created flag,
> which tracks whether the hypervisor-side (EL2) VM has been instantiated.
> 
> It comes out of the ongoing pKVM (protected KVM) upstreaming work and runs
> in parallel with it. The changes only remove dead or redundant code around
> the flag, not any of the functional paths that work touches, so there is no
> dependency in either direction and the two can be applied in any order.
> 
> is_created stays: the pKVM handle is reserved early (so host MMU-notifier
> TLB invalidations have a valid handle before the first vCPU run), so a
> non-zero handle no longer implies the EL2 VM exists. is_created is what
> distinguishes "reserved" from "created", and the teardown path relies on it.
> Only the cruft around it goes.

For the whole series: Reviewed-by: Keir Fraser <keirf@xxxxxxxxxx>

> Cheers,
> /fuad
> 
> Fuad Tabba (3):
>   KVM: arm64: Drop the unused EL2-side is_created write
>   KVM: arm64: Remove unreachable early checks in pkvm_init_host_vm()
>   KVM: arm64: Drop redundant READ_ONCE() in pkvm_hyp_vm_is_created()
> 
>  arch/arm64/kvm/hyp/nvhe/pkvm.c |  1 -
>  arch/arm64/kvm/pkvm.c          | 13 +++++--------
>  2 files changed, 5 insertions(+), 9 deletions(-)
> 
> -- 
> 2.54.0.1189.g8c84645362-goog
>