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Re: [Xen-devel] [PATCH] xenpaging: clear page content after evict
| To: | Olaf Hering <olaf@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] xenpaging: clear page content after evict |
| From: | Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> |
| Date: | Mon, 10 Oct 2011 12:33:29 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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Olaf Hering writes ("[Xen-devel] [PATCH] xenpaging: clear page content after
evi> xenpaging: clear page content after evict
>
> If the guest happens to read from the gfn while xenpaging is in the process of
> evicting the page, the guest may read zeros instead of actual data.
> Also if eviction fails the page content will be corrupted and xenpaging wont
> attempt to restore the page.
As far as the tools are concerned,
Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Ian.
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