Re: [PATCH 2/2] KVM: SVM: Emulate next_rip svm feature

From: Roedel, Joerg
Date: Wed Jul 28 2010 - 07:23:35 EST

On Wed, Jul 28, 2010 at 06:28:06AM -0400, Avi Kivity wrote:
> We have a slightly different problem, if the nested guest manages to get
> an instruction to be emulated by the host (if the guest assigned it the
> cirrus framebuffer, for example, so from L1's point of view it is RAM,
> but from L0's point of view it is emulated), then we miss the
> intercept. L2 could take over L1 this way.

I wonder how this could happen. Shouldn't the shadow paging code take
care of this?


Joerg Roedel - AMD Operating System Research Center

Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach
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