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Re: [Xen-devel] pci-passthrough loses msi-x interrupts ability after domain destroy

On Fri, Sep 22, 2017 at 09:35:40AM +0200, Sander Eikelenboom wrote:
> - Not an issue back then when the patch was made, but as the question earlier 
> to Roger,
>   the hypervisor seems to grow more interference with pci devices with the 
> PVH dom0 work.
>   If and hoow does that relate to pci-back and pci-passthrough and (the 
> location of) resetting mechanisms ?

pci-back will still be required in order to do pci-passthrough to PV
guests. The aim is to use the new pci-emulation layer to perform
pci-passthrough to both HVM and PVH guests, deprecating the
passthrough code inside of QEMU.

I would prefer to have the reset mechanism inside of Xen, but I'm not
sure how feasible it is to put this code inside of Xen because I
haven't looked at it yet.


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