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xen-devel
RE: [Xen-devel] [RFC][PATCH 4/6] HVM PCI Passthrough (non-IOMMU)
> -----Original Message-----
> From: Tian, Kevin [mailto:kevin.tian@xxxxxxxxx]
> Sent: Friday, June 01, 2007 5:45 AM
> To: Guy Zana; xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-devel] [RFC][PATCH 4/6] HVM PCI Passthrough
> (non-IOMMU)
>
> Hi, Guy,
> The picture in my mind for polarity change is to change
> generic level-triggered handle flow like:
>
> When interrupt happens,
> ->ack():
> 1. Change pin's polarity
> 2. EOI
>
> Do_IRQ_guest (either event to para-domain, or Assert/Deassert
> virtual wire of HVM domain), or handled by Xen itself
>
> ->end():
> No-op
>
That's a good way to go IMO.
I actually thought about something similar, but being cautious, I tried to make
as few changes as I could to see if it works at first.
Thanks,
Guy.
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