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Re: [Xen-devel] [PATCH] x86/hvm: Allow the guest to permit the use of userspace hypercalls

On Tue, Jan 12, 2016 at 10:57 AM, Andrew Cooper
<andrew.cooper3@xxxxxxxxxx> wrote:
> Writing a PV guest from scratch has been very enlightening to
> demonstrate how much of a trainwreck the ABI is.  Almost nothing is
> documented.  Some bits which are documented are misleading.  Several
> areas needlessly deviate from x86 architectural behaviour.  Almost any
> deviation from the way Linux does things ends up in situations which
> don't function.

Something I think HPA has been complaining about for nearly a decade
now I think...


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