Re: [Xen-devel] Re: [Xen-users] Xen viridian support/features

[Florian Manschwetus <florianmanschwetus@xxxxxx>]

Am 23.07.2009 16:19, schrieb Pasi Kärkkäinen:
> On Thu, Jul 23, 2009 at 03:11:01PM +0100, Tim Deegan wrote:
> > At 18:15 +0100 on 21 Jul (1248200133), Pasi K?rkk?inen wrote:
> > > Then again I'm not sure "how much" of viridian stuff Xen currently
> > > supports..
> > At the moment we provide MSR access to APIC registers, and the hypercall
> > to yield the CPU when waiting for a spinlock.  We looked at a few others
> > (e.g. address-space-change hypercall) but found the benefits, if any,
> > were negligible.
> >
> > The most important part of the interface is that we can use it to tell
> > Windows not to expect timer interrupt delivery to be as even across all
> > CPUs as it would be on bare metal.  This gets rid of annoying STOP 0x101
> > bluescreens in multi-vcpu Windows from Vista on.
> Thanks for the reply!
>
> Any plans to write support for paravirtual viridian disk/network backends?
> (I assume they have stuff like that implemented in hyper-v).
>
> -- Pasi
>
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Take a shorter target, reboot notification using hyper-v guest 
integration stuff would be a great win.
Florian

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