Re: [Xen-devel] question about the meaning of memory auto-translate and paravirtual and no pseudophysical overlay

[tgh <tianguanhua@xxxxxxxxxx>]

hi
Thank you for your reply


Mark Williamson 写道:
>> if there is no pseudophysical addresses,a physical host computer could
>> only paravirtualise one VM,is it right?
>>     
>
> No, AFAIK pseudophysical addresses are mostly there for the convenience of 
> the 
> guest.  Xen has some support for them so that guests can use them more 
> efficiently but that's not strictly necessary.  In principle, they could be 
> eliminated from Xen entirely (would require modifying the PV guests to manage 
> the pseudophys abstraction themselves).
>   
Is there this kind paravirtual os for xen at present?
or in future,will this kind paravirtual os come out?
and what is the advantages for this kind of os?

Thanks in advance

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