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Date:   Thu, 22 Sep 2022 09:13:51 -0300
From:   Jason Gunthorpe <jgg@nvidia.com>
To:     "Tian, Kevin" <kevin.tian@intel.com>
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        "Chatre, Reinette" <reinette.chatre@intel.com>,
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Subject: Re: [patch 21/32] NTB/msi: Convert to msi_on_each_desc()
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On Thu, Sep 22, 2022 at 05:11:00AM +0000, Tian, Kevin wrote:

> > Thinking of the interrupt routing as a host resource is the problem -
> > it is a device resource and just like PASID the ideal design would
> > have each RID have its own stable numberspace scoped within it. The
> > entire RID and all its stable numberspace would be copied over.
> > 
> 
> Unfortunately it is not the case at least on Intel VT-d. The interrupt
> remapping table is per VT-d instead of per RID.

Doesn't that just turn it into a SW problem how it manages it?

Jason