Messages in this thread | | | From | KY Srinivasan <> | Subject | RE: [PATCH] x86: Hyper-V: register clocksource only if its advertised | Date | Fri, 25 Jan 2013 20:03:46 +0000 |
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> -----Original Message----- > From: Olaf Hering [mailto:olaf@aepfle.de] > Sent: Friday, January 25, 2013 3:00 PM > To: KY Srinivasan > Cc: linux-kernel@vger.kernel.org; Greg KH; Jan Beulich (JBeulich@suse.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?
Yes; it has to - if it expects the Windows guests to use it. This would be no different than the other features that Xen emulates and advertises.
K. Y
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