* HPA <-> GPA mapping
@ 2016-04-04 8:04 Razvan Cojocaru
2016-04-04 10:17 ` Jan Beulich
0 siblings, 1 reply; 2+ messages in thread
From: Razvan Cojocaru @ 2016-04-04 8:04 UTC (permalink / raw)
To: xen-devel
Hello,
Does Xen under any circumstances ever modify GPA -> HPA translations
_while_ a HVM guest is running? I could find no cases where that would
happen, but I would appreciate an authoritative answer.
Thanks,
Razvan
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* Re: HPA <-> GPA mapping
2016-04-04 8:04 HPA <-> GPA mapping Razvan Cojocaru
@ 2016-04-04 10:17 ` Jan Beulich
0 siblings, 0 replies; 2+ messages in thread
From: Jan Beulich @ 2016-04-04 10:17 UTC (permalink / raw)
To: Razvan Cojocaru; +Cc: xen-devel
>>> On 04.04.16 at 10:04, <rcojocaru@bitdefender.com> wrote:
> Does Xen under any circumstances ever modify GPA -> HPA translations
> _while_ a HVM guest is running? I could find no cases where that would
> happen, but I would appreciate an authoritative answer.
Of course we do, namely when asked to by the guest itself (see
grant table operations or XENMEM_*_physmap).
Jan
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