linux-kernel - Re: [Xen-devel] [PATCH] x86/amd: fix crash as Xen Dom0 on AMD Trinity systems

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Message-Id: <4FC65B950200007800086F5B@nat28.tlf.novell.com>
Date:	Wed, 30 May 2012 16:40:37 +0100
From:	"Jan Beulich" <JBeulich@...e.com>
To:	"Borislav Petkov" <bp@...en8.de>
Cc:	"Andre Przywara" <andre.przywara@....com>,
	"Jacob Shin" <Jacob.Shin@....com>, <mingo@...e.hu>,
	<jeremy@...p.org>, <tglx@...utronix.de>,
	<xen-devel@...ts.xensource.com>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@...cle.com>,
	<linux-kernel@...r.kernel.org>, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [Xen-devel] [PATCH] x86/amd: fix crash as Xen Dom0 on AMD
 Trinity systems

>>> On 30.05.12 at 17:12, Borislav Petkov <bp@...en8.de> wrote:
> This current case should be a perfect example for why xen shouldn't be
> sprinkling code all over the place.

Which means you're denying the benefits of para-virtualization
(at the base system level; perhaps it's less of a problem for you
when it comes to pv device drivers, which are generally
standalone entities) as that's what distinguishes Xen from all
other virtualization solutions Linux supports.

Jan

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