RE: [PATCH RESEND 1/1] X86: Handle Hyper-V vmbus interrupts asspecial hypervisor interrupts

[KY Srinivasan]

> -----Original Message-----
> From: Olaf Hering [mailto:olaf@xxxxxxxxx]
> Sent: Thursday, January 24, 2013 2:00 PM
> To: KY Srinivasan
> Cc: Jan Beulich; bp@xxxxxxxxx; apw@xxxxxxxxxxxxx; x86@xxxxxxxxxx;
> tglx@xxxxxxxxxxxxx; devel@xxxxxxxxxxxxxxxxxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx;
> jasowang@xxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; hpa@xxxxxxxxx
> Subject: Re: [PATCH RESEND 1/1] X86: Handle Hyper-V vmbus interrupts as
> special hypervisor interrupts
> 
> On Thu, Jan 24, KY Srinivasan wrote:
> 
> 
> > > Question is - considering you stated that this is supported
> > > starting in Win8, doesn't Hyper-V itself announce that
> > > capability in some explicit way?
> >
> > Thanks Jan. Unfortunately I don't think tis interrupt delivery model
> > is specified via a "feature" bit (I will check with the Windows guys).
> > Perhaps, we can have a Hyper-V specific compilation switch to address
> > the Xen emulation issue.
> 
> Would that really help if both pvops XEN_PVHVM and HYPERV are enabled in
> the config? I assume at this point the access to the DMI data is not yet
> possible.

I was under the impression that only Dom0 Xen would emulate Hyper-V.


K. Y
> 
> Olaf
> 

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