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Date: Sun, 23 Feb 2014 08:40:21 -0800
From: Peter Grehan <grehan@freebsd.org>
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To: Willem Jan Withagen <wjw@digiware.nl>
Subject: Re: Bhyve and Ubuntu booting
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> vm exit rdmsr 0xc0010015, cpu 0
> ---
>
> And I've seen discussions in other threads about reading/writing cpu
> registers where some bits should be 0, but trap when being set....
> (Or something close to this...???)
>
> So it could again be due to the amdsrc tree differences?

  It's Linux accessing different MSRs on AMD as opposed to Intel. There 
is an option to ignore unknown MSRs with bhyve, but that probably 
shouldn't be used on AMD systems until we've worked out if the MSRs need 
to be emulated or not. Hopefully that will be in the next updated :)

later,

Peter.