Re: [PATCH V2 4/8] kvm: x86/mmu: Set mmu->sync_page as NULL for direct paging

[Paolo Bonzini]

On 2/7/23 16:57, Lai Jiangshan wrote:
> From: Lai Jiangshan<jiangshan.ljs@xxxxxxxxxxxx>
>
> mmu->sync_page for direct paging is never called.
>
> And both mmu->sync_page and mm->invlpg only make sense in shadowpaging.
> Setting mmu->sync_page as NULL for direct paging makes it consistent
> with mm->invlpg which is set NULL for the case.
>
> Signed-off-by: Lai Jiangshan<jiangshan.ljs@xxxxxxxxxxxx>

I'd rather have a WARN_ON_ONCE in kvm_sync_page(), otherwise looks good.

Paolo