Am Wed, 28 Apr 2021 11:49:59 +0200 schrieb Jan Beulich <jbeul...@suse.com>:
> On 28.04.2021 09:50, Olaf Hering wrote: > > Is there an API to get a list of PFNs which are currently being active in > > the grant table for a given domid? > Do you really mean PFNs? The save/restore code uses the term "pfn" to refer to page indices from the domU point of view. Since I usually just follow the HVM code paths, the term might indeed be incorrect for PV. > Also, what do you mean by "active in the grant table"? I'm not familiar with grants. My guess is, a domU pro-actively shares some of its pages with someone else. These shared pages have to be tracked somewhere, and I guess Xen has to establish proper access permissions for such pages. I guess the "grant table" is the place where things are collected. Looking through xen/grant_table.h, I see no API. But that might be the wrong place anyway. Olaf
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