Re: [PATCH] hw/xen: pass PCI domain to xc_physdev_map_pirq_msi()

[Anthony PERARD <anthony@xxxxxxxxxxxxxx>]

On Fri, Oct 17, 2025 at 05:51:36PM +0200, Roger Pau Monne wrote:
> It's currently impossible for passthrough devices on segment different than
> 0 to work correctly, as the PCI domain is not provided to
> xc_physdev_map_pirq_msi(), and hence it's unconditionally assumed that all
> devices are on segment 0.
> 
> Adjust the call to xc_physdev_map_pirq_msi() to pass the PCI domain in the
> high 16bits of the bus parameter.  On versions of Xen where this is not
> supported the passed segment will be ignored and assume to be 0, no worse
> than the current state.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Reviewed-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>

Thanks,

-- 
Anthony PERARD