Re: Re: [Xen-devel] Balloon driver for Linux/HVM

[George Dunlap <dunlapg@xxxxxxxxx>]

2010/11/16 牛立新 <topperxin@xxxxxxx>:
> o, it's strange, the old version have no this limitation.

No; unfortunately a great deal of functionality present in "classic
xen" has been lost in the process of getting the core dom0 support
into the pvops kernel.  I think the plan is, once we have the
necessary changes to non-xen code pushed up stream, we can start
working on getting feature parity with classic xen.

>
>
> At 2010-11-16 19:35:50，"Stefano Stabellini" 
> <stefano.stabellini@xxxxxxxxxxxxx> wrote:
>
>>On Tue, 16 Nov 2010, Chu Rui wrote:
>>> Hi,
>>> I have noticed that, in the code of linux/drivers/xen/balloon.c, there 
>>> exists the snippet as this:
>>>
>>> static int __init balloon_init(void)
>>> {
>>> unsigned long pfn;
>>> struct page *page;
>>> if (!xen_pv_domain())
>>> return -ENODEV;
>>> .....
>>> }
>>>
>>> Does it means the driver will not work in HVM? If so, where is the 
>>> HVN-enabled code for that?
>>
>>not yet, even though I have a patch ready to enable it:
>>
>>git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 2.6.36-rc7-pvhvm-v1
>
>
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