linux-kernel - Re: [PATCH] x86: Hyper-V: register clocksource only if its advertised

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Date:	Fri, 25 Jan 2013 21:00:00 +0100
From:	Olaf Hering <olaf@...fle.de>
To:	KY Srinivasan <kys@...rosoft.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...uxfoundation.org>,
	"Jan Beulich (JBeulich@...e.com)" <JBeulich@...e.com>
Subject: Re: [PATCH] x86: Hyper-V: register clocksource only if its advertised

On Fri, Jan 25, KY Srinivasan wrote:

> Your current approach of using the "Partition Reference Counter"
> feature bit is very fragile. Let us assume that future Windows guests
> depend on this feature; Xen would certainly emulate this to have a
> "good" emulation of Hyper-V and we are back to square one.

If Xen starts to emulate the "Partition Reference Counter" feature,
wouldnt it also advertise this feature?

Olaf
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