Re: [Xen-devel] Design document of Kemari

[Yoshisato YANAGISAWA <yanagisawa.yoshisato@xxxxxxxxxxxxx>]

On 2009/03/10 17:21, Keir Fraser wrote:
> On 09/03/2009 22:28, "Yoshiaki Tamura" <tamura.yoshiaki@xxxxxxxxxxxxx>
> wrote:
>
> > > xc_domain_{save,restore} and xc_dom_kemari_{save,restore} look to have quite
> > > a bit in common.
> > Yes they do. We kept the original xc_domain_{save,restore} to make kemari
> > specific part less intrusive. If you suggest to integrate them, we would
> > certainly do so. Would that be appropriate?
> Yes, we prefer a merged save/restore codebase.
Since Kemari requires transaction-like feature, xc_dom_kemari_save 
should wait acknowledgment from xc_dom_kemari_restore. 
Xc_dom_kemari_restore should also buffer data until complete snapshot 
received from xc_dom_kemari_save.
Because of this reason, there might be large if-else statements if those 
code are merged.
Isn't it make xc_domain_save and xc_domain_restore too complexed?

--
Yoshisato YANAGISAWA, Ph.D.
Open Source Software Computing Project
NTT Cyber Space Laboratories
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
1-1 Hikarinooka, Yokosuka-Shi,
Kanagawa 239-0847, Japan

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