Re: [Qemu-devel] [v5][PATCH 3/5] xen, gfx passthrough: support Intel IGD passthrough with VT-D

[Paolo Bonzini]

Il 25/06/2014 04:17, Tiejun Chen ha scritto:
> +int pci_create_pch(PCIBus *bus)
> +{
> +    XenHostPCIDevice hdev;
> +    int r = 0;
> +
> +    if (!xen_has_gfx_passthru) {
> +        return r;
> +    }
> +

You could make this an assertion, since the function is never called 
with xen_has_gfx_passthru == 0.  Or just drop the check completely, so 
the function can be moved in patch 2.

Paolo