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Re: [Xen-ia64-devel][PATCH]Change to new interrupt deliver mechanism

To: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Subject: Re: [Xen-ia64-devel][PATCH]Change to new interrupt deliver mechanism
From: Doi.Tsunehisa@xxxxxxxxxxxxxx
Date: Fri, 01 Dec 2006 19:49:03 +0900
Cc: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
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You (anthony.xu) said:
> Doi.Tsunehisa@xxxxxxxxxxxxxx write on 2006年12月1日 17:53:
> >>>> Due to we are using pci irq(>15) for platform_pci,
> >>>> We may need to revert back this patch(Issue about interrupt for
> >>>> PV-on-HVM on IPF).
> >>> 
> >>>   Sorry, please tell me about the change.
> >>> 
> >>>   Actually, what will GSI for platform_pci become ?
> >> 
> >> It becomes 28.
> > 
> >  Thanks...
> > 
> >   Hmm.. I'll have to think of the conversion from vector to GSI.
> I think we can use pdev->irq directly in platform-pci.c at least in guest
> linux,
> I'm not sure about guest Windows.

  Hmm.. Current implement needs the GSI for platform-pci to follow
status of virtual IOSAPIC in hypervisor side. But, it's not certain
value from virtual IOSAPIC at calling set_callback_irq hypercall.

  I'll be thinking more...

- Tsunehisa Doi

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