Re: [Xen-devel] [PATCHv3 0/2] xen/privcmd: support for paged-out frames

[Andres Lagar-Cavilla <andreslc@xxxxxxxxxxxxxx>]

On Sep 5, 2012, at 2:57 PM, Konrad Rzeszutek Wilk wrote:

> On Thu, Aug 30, 2012 at 04:12:03PM -0400, Andres Lagar-Cavilla wrote:
>> On Aug 30, 2012, at 4:05 PM, Konrad Rzeszutek Wilk wrote:
>> 
>>>> I think this should probably get a "Tested-by" Andres or someone else
>>>> who uses paging before being applied.
>>> 
>>> How do I test it? Is there an easy explanation/tutorial Andres?
>> 
>> I have a unit test lying somewhere but I'll need a day to dig it out.
> 
> If you can send that that would be super..
Yeah. Sorry, forgot. Will take me a bit though.
>> 
>> Or you can start an hvm, pause it, fire up xenpaging with debug output so it 
>> tells you what it paged out, and then trace libxc as you xc_map_foreign_bulk 
>> a known batch of evicted pfns. On the first try it should get rc == -1, 
>> errno == ENOENT, error field for the pfn == ENOENT. On the second try it 
>> should all be dandy.
>> 
> 
> This works well with Xen 4.1 or should I use Xen 4.2?

Xen-4.1 is advertised to work with this but I've never tried. Xen-4.2 is what I 
use all the time

Andres

>> Thanks
>> Andres


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