On Tue, Feb 08, 2022 at 06:42:57PM +0100, Cornelia Huck wrote: > On Thu, Jan 27 2022, Jean-Philippe Brucker <jean-phili...@linaro.org> wrote: > > > @@ -988,9 +1025,9 @@ static void virtio_iommu_device_realize(DeviceState > > *dev, Error **errp) > > virtio_add_feature(&s->features, VIRTIO_IOMMU_F_INPUT_RANGE); > > virtio_add_feature(&s->features, VIRTIO_IOMMU_F_DOMAIN_RANGE); > > virtio_add_feature(&s->features, VIRTIO_IOMMU_F_MAP_UNMAP); > > - virtio_add_feature(&s->features, VIRTIO_IOMMU_F_BYPASS); > > virtio_add_feature(&s->features, VIRTIO_IOMMU_F_MMIO); > > virtio_add_feature(&s->features, VIRTIO_IOMMU_F_PROBE); > > + virtio_add_feature(&s->features, VIRTIO_IOMMU_F_BYPASS_CONFIG); > > Hm. In the other patch, you say that you don't support cross-version > migration (I assume across QEMU versions?)
I missed that ... where does it say this? > Because changing the feature > set will be guest-visible, and would need some compat handling if you > plan to support this.