> The other thing to keep in mind is that the poison value only really
> comes into play with hinting/reporting. In the case of the standard
> balloon the pages are considered allocated from the guest's
Currently just as free page hinting IMHO. They are temporarily
considered allocated.
>
On Thu, Apr 16, 2020 at 7:55 AM David Hildenbrand wrote:
>
> >> We should document our result of page poisoning, free page hinting, and
> >> free page reporting there as well. I hope you'll have time for the latter.
> >>
> >>
>> We should document our result of page poisoning, free page hinting, and
>> free page reporting there as well. I hope you'll have time for the latter.
>>
>> -
>> Semantics of VIRTIO_BALLOON_F_PAGE_POISON
>>
On Thu, Apr 16, 2020 at 10:18:49AM +0200, David Hildenbrand wrote:
> >>
> >> Postcopy is a very good point, bought!
> >>
> >> But (what you wrote above) it sounds like that this is really what we
> >> *have to* do, not an optimization. I‘ll double check the spec tomorrow
> >> (hopefully it was
On 16.04.20 10:18, David Hildenbrand wrote:
>>>
>>> Postcopy is a very good point, bought!
>>>
>>> But (what you wrote above) it sounds like that this is really what we *have
>>> to* do, not an optimization. I‘ll double check the spec tomorrow (hopefully
>>> it was documented). We should
>>
>> Postcopy is a very good point, bought!
>>
>> But (what you wrote above) it sounds like that this is really what we *have
>> to* do, not an optimization. I‘ll double check the spec tomorrow (hopefully
>> it was documented). We should rephrase the comment then.
>
> Do you have a link to the
On Wed, Apr 15, 2020 at 12:46 PM David Hildenbrand wrote:
>
>
>
> > Am 15.04.2020 um 21:29 schrieb Alexander Duyck :
> >
> > On Wed, Apr 15, 2020 at 11:17 AM David Hildenbrand
> > wrote:
> >>
> >>>
> >>> The comment above explains the "why". Basically poisoning a page will
> >>> dirty it. So
> Am 15.04.2020 um 21:29 schrieb Alexander Duyck :
>
> On Wed, Apr 15, 2020 at 11:17 AM David Hildenbrand wrote:
>>
>>>
>>> The comment above explains the "why". Basically poisoning a page will
>>> dirty it. So why hint a page as free when that will drop it back into
>>> the guest and
On Wed, Apr 15, 2020 at 11:17 AM David Hildenbrand wrote:
>
> >
> > The comment above explains the "why". Basically poisoning a page will
> > dirty it. So why hint a page as free when that will drop it back into
> > the guest and result in it being dirtied again. What you end up with
> > is all
>
> The comment above explains the "why". Basically poisoning a page will
> dirty it. So why hint a page as free when that will drop it back into
> the guest and result in it being dirtied again. What you end up with
> is all the pages that were temporarily placed in the balloon are dirty
> after
On Wed, Apr 15, 2020 at 1:08 AM David Hildenbrand wrote:
>
> On 10.04.20 05:41, Alexander Duyck wrote:
> > From: Alexander Duyck
> >
> > We need to make certain to advertise support for page poison tracking if
> > we want to actually get data on if the guest will be poisoning pages. So
> > if
On 10.04.20 05:41, Alexander Duyck wrote:
> From: Alexander Duyck
>
> We need to make certain to advertise support for page poison tracking if
> we want to actually get data on if the guest will be poisoning pages. So
> if free page hinting is active we should add page poisoning support and
>
From: Alexander Duyck
We need to make certain to advertise support for page poison tracking if
we want to actually get data on if the guest will be poisoning pages. So
if free page hinting is active we should add page poisoning support and
let the guest disable it if it isn't using it.
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