On Wed, 13 Mar 2013 20:42:41 +0800
Xiao Guangrong <[email protected]> wrote:
> >>>> How about save all mmio spte into a mmio-rmap?
> >>>
> >>> The problem is that other mmu code would need to care about the pointers
> >>> stored in the new rmap list: when mmu_shrink zaps shadow pages for
> >>> example.
> >>
> >> It is not hard... all the codes have been wrapped by *zap_spte*.
> >>
> > So are you going to send a patch? What do you think about applying this
> > as temporary solution?
>
> Hi Gleb,
>
> Since it only needs small change based on this patch, I think we can directly
> apply the rmap-based way.
>
> Takuya, could you please do this? ;)
Though I'm fine with my making the patch better, I'm still thinking
about the bad side of it, though.
In zap_spte, don't we need to search the pointer to be removed from the
global mmio-rmap list? How long can that list be?
Implementing it will/may not be difficult but I'm not sure if we would
get pure improvement. Unless it becomes 99% sure, I think we should
first take a basic approach.
What do you think?
Thanks,
Takuya
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