Re: [Xen-devel] [V6 PATCH 6.2/7] pvh dom0: Add and remove foreign pages

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 13.12.13 at 20:02, George Dunlap <george.dunlap@xxxxxxxxxxxxx> wrote:
> On 12/13/2013 11:39 AM, Jan Beulich wrote:
>>>>> On 13.12.13 at 12:25, Tim Deegan <tim@xxxxxxx> wrote:
>>> Also, Jan may have an opinion about whether a teardown operation that
>>> has to walk each p2m entry would have to be made preemptible.  I'm not
>>> sure where we draw the line on such things.
>> There's no line here - "each" is too much in any case.
> 
> By which you mean, yes a teardown operation that has to walk each p2m 
> entry does need to be made pre-emptible?
> 
> It that's not what you mean, I'm at a loss for an interpretation of the 
> above sentence. :-)

Any operation - teardown or other - that needs to walk all of a
domain's pages has to be preemptible. So yes, your interpretation
of my earlier response was right.

Jan


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