Re: [Xen-devel] PVHVM drivers in upstream linux kernel

[Juergen Gross <jgross@xxxxxxxx>]

On 12/02/2014 11:54 AM, David Vrabel wrote:
> On 02/12/14 09:39, Juergen Gross wrote:
> > Hi,
> >
> > looking into the upstream linux sources I realized that the PVHVM
> > drivers of XEN are only available with the pvops kernel. Is this on
> > purpose? Shouldn't the frontend drivers, xen/platform-pci.c etc. be
> > configurable without having to enable CONFIG_PARAVIRT?
> I suppose that would be possible but I don't think it's a useful
> configuration because you would lose PV spinlocks for example.
Having no pv spinlocks on a single vcpu HVM guest isn't so bad. Having
no pv-drivers for disks and networking is worse.


Juergen

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