linux-kernel - Re: [PATCH 0/3] x86/paravirt: Fix baremetal paravirt MSR ops

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Message-ID: <20150917151757.GM3816@twins.programming.kicks-ass.net>
Date:	Thu, 17 Sep 2015 17:17:57 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Paolo Bonzini <pbonzini@...hat.com>,
	xen-devel <Xen-devel@...ts.xen.org>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	X86 ML <x86@...nel.org>, KVM list <kvm@...r.kernel.org>
Subject: Re: [PATCH 0/3] x86/paravirt: Fix baremetal paravirt MSR ops

On Thu, Sep 17, 2015 at 08:17:18AM -0700, Andy Lutomirski wrote:

> > Ah, that would be good news. Andy earlier argued I could not rely on
> > rdmsr_safe() faulting on unknown MSRs. If practically we can there's
> > some code I can simplify :-)
> 
> I was taking about QEMU TCG, not KVM.

Just for my education, TCG is the thing without _any_ hardware assist?
The thing you fear to use because it cannot boot a kernel this side of
tomorrow etc.. ?
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