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[Xen-devel] Re: shadow2 corrupting PV guest state

Keir Fraser wrote:
The shadow-refcount code in shadow2 is very new. It's likely to have bugs
that need shaking out.

Yep, that's pretty much what I'd expect.

 It won't be a deferred pagetable update because they
don't exist in shadow2 (updates are always synchronously emulated).

OK, so every write to a pagetable page will take the fault&emulate path? What's your confidence level in the emulator?


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