Re: [PATCH 4/4] x86/shadow: correct shadow_vcpu_init()'s comment

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Tue, Apr 23, 2024 at 04:33:09PM +0200, Jan Beulich wrote:
> As of the commit referenced below the update_paging_modes() hook is per-
> domain and hence also set (already) during domain construction.
> 
> Fixes: d0816a9085b5 ("x86/paging: move update_paging_modes() hook")
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> 
> --- a/xen/arch/x86/mm/shadow/common.c
> +++ b/xen/arch/x86/mm/shadow/common.c
> @@ -99,11 +99,12 @@ int shadow_domain_init(struct domain *d)
>      return 0;
>  }
>  
> -/* Setup the shadow-specfic parts of a vcpu struct. Note: The most important
> - * job is to initialize the update_paging_modes() function pointer, which is
> - * used to initialized the rest of resources. Therefore, it really does not
> - * matter to have v->arch.paging.mode pointing to any mode, as long as it can
> - * be compiled.
> +/*
> + * Setup the shadow-specific parts of a vcpu struct. Note: The
> + * update_paging_modes() function pointer, which is used to initialize other
> + * resources, was already set during domain creation. Therefore it really 
> does
> + * not matter to have v->arch.paging.mode pointing to any (legitimate) mode,
> + * as long as it can be compiled.

Do you need to keep the last sentence?  If update_paging_modes is
already set at domain create, the 'Therefore it really does...'
doesn't seem to make much sense anymore, as it's no longer
shadow_vcpu_init() that sets it.

Possibly with that dropped:

Acked-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Thanks, Roger.