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xen-ia64-devel

Re: [Xen-ia64-devel] Modify to introduce delayed p2m table destruction

To: Doi.Tsunehisa@xxxxxxxxxxxxxx
Subject: Re: [Xen-ia64-devel] Modify to introduce delayed p2m table destruction
From: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Date: Mon, 20 Nov 2006 14:07:25 +0900
Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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On Mon, Nov 20, 2006 at 01:08:38PM +0900, Doi.Tsunehisa@xxxxxxxxxxxxxx wrote:
> You (yamahata) said:
> >>   We have studied it. So, we think that we can't realize to defer
> >> p2m table destruction with the convension. Thus, we'll take anothor
> >> approach to avoid the hypervisor hang. Basicaly, we'll introduce a
> >> reference count of p2m table like page struct.
> > 
> > Why do you think so?
> > I believe that it is possible without such a reference count.
> 
>   At first, we think that we can't realize to defer p2m table destruction
> because the convention requires that p2m table exists while page struct
> exists.

Hmm. Then I'll take care of it.
It would be after xenoprof/ia64, /dev/mem and other urgent issues, though.

-- 
yamahata

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