RE: [Xen-devel] RE: Solaris and PVRDTSCP

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

Cool. I'll go with the simple approach for now then :-)

  Paul

> -----Original Message-----
> From: Keir Fraser [mailto:keir.xen@xxxxxxxxx]
> Sent: 01 July 2011 19:04
> To: Dan Magenheimer; Paul Durrant; xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-devel] RE: Solaris and PVRDTSCP
> 
> On 01/07/2011 18:51, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx>
> wrote:
> 
> >>   Clearly future versions of the Solaris kernel should revise
> this
> >> check but to allow this kernel to enable PV drivers I was
> wondering
> >> what sort of workaround could be done. My current thoughts are
> along
> >> the lines of disabling the extra CPUID leaf if tsc_mode is <
> >> TSC_MODE_PVRDTSCP.
> >
> > This seems reasonable.  The info on that leaf could be useful in
> other
> > modes, but likely hasn't been.
> 
> Tbh I'm fine with this as well, on the understanding that it may end
> up having to be fixed the hard way (explicit max_leaf) if we add
> anything more to the hypervisor cpuid space.
> 
>  -- Keir
> 


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