RE: [Xen-devel] xen tsc problems?

[Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>]

> From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
> Sent: Tuesday, July 13, 2010 12:59 PM
> To: Stefano Stabellini; Dan Magenheimer
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-devel] xen tsc problems?
> 
> On 13/07/2010 19:14, "Stefano Stabellini"
> <Stefano.Stabellini@xxxxxxxxxxxxx>
> wrote:
> 
> > On Tue, 13 Jul 2010, Dan Magenheimer wrote:
> >> /me wonders if timer_mode=1 is the default for xl?
> >> Or only for xm?
> >
> > no, it is not.
> > Xl defaults to 0, I am going to change it right now.
> 
> Possibly we should make timer_mode=1 the default in Xen as well, and
> actually disallow setting it to 0. Clearly no good comes of it.

IIRC from >2 years ago, timer_mode=0 was best for older HVM 32-bit
Linux guests.  Obviously if the code (interacting with the tsc code)
has bit-rotted, "best" is a relative term. :-)

Dan

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