Re: [PATCH v5 12/15] KVM: arm64: Derive the VM hardware dirty mode from dirty logging

[Leonardo Bras]

On Tue, Sep 29, 2026 at 06:36:52PM +0800, Tian Zheng wrote:
> Both HAFDBS and HDBSS flip VTCR_EL2.HD at memslot-update time. Two
> independent toggles allow an intermediate HDBSS-set/HD-clear state,
> an illegal combination, and need locking against concurrent updates.
> 
> Replace both with kvm_arch_update_hw_dirty_mode(), a pure function
> of the static capabilities and the number of logging memslots:
> 
>   - logging && HDBSS-capable  -> HD|HA|HDBSS
>   - logging, no HDBSS         -> off
>   - !logging && HAFDBS-cap.   -> HD|HA

This last one is gone now, so I guess most of this patch has to be 
reworked, right?

Thanks!
Leo