Re: [PATCH 06/67] iommu/amd: WARN if KVM attempts to set vCPU affinity without posted intrrupts

[Paolo Bonzini]

On Wed, Apr 16, 2025 at 11:47 AM Sairaj Kodilkar <sarunkod@xxxxxxx> wrote:
> I think it is safe to have this WARN_ON(!dev_data->use_vapic) without
> any false positives. IOMMU driver sets the dev_data->use_vapic only when
> the device is in UNMANAGE_DOMAIN and it is 0 if the device is in any
> other domain (DMA, DMA_FQ, IDENTITY).
>
> We have a bigger problem from the VFIO side if we hit this WARN_ON()
> as device is not in a UNMANGED_DOMAIN.

This does seem safe, but its more of a VFIO/iommu change than a KVM
one so I'm not too comfortable with merging it myself; please submit
it as a separate patch.

Paolo