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

[Andres Lagar-Cavilla <andreslc@xxxxxxxxxxxxxx>]

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.

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.

Thanks
Andres
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