Re: [PATCH][RFC]: pte notifiers -- support for external page tables

From: Avi Kivity
Date: Wed Sep 05 2007 - 15:35:52 EST


Rik van Riel wrote:

I imagine that many of the paravirt_ops mmu hooks will need to be exposed as pte notifiers. This can't be done as part of the paravirt_ops code due to the need to pass high level data structures, though.

Wait, I thought that paravirt_ops was all on the side of the
guest kernel, where these host kernel operations are invisible?


It is, but the hooks are in much the same places. It could be argued that you'd embed pte notifiers in paravirt_ops for a host kernel, but that's not doable because pte notifiers use higher-level data strutures (like vmas).

--
Any sufficiently difficult bug is indistinguishable from a feature.

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