[Xen-devel] Re: The store and restore?

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 16 Jul 2005, at 22:59, Rusty Russell wrote:

> On restore, we need to create a new event channel and update the shared
> page information for the store, AFAICT.
>
> I'm not quite sure how this *should* be done.  Thoughts welcome, patch
> below.
I'd pass the mfn to the guest in the start_info_t, instead of the va. 
The guest can easily calclulate the va, and it avoids grossness during 
save/restore (where you'd need to walk guest pagetables to properly 
recover the mfn).
'Canonicalise' start_info->store_mfn (turn into a pfn) during save, 
then uncanonicalise during restore.
 -- Keir


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