On 2015-07-29 01:21, Benjamin Herrenschmidt wrote: > On Tue, 2015-07-28 at 15:43 -0700, Andy Lutomirski wrote: >> New QEMU >> always advertises this feature flag. If iommu=on, QEMU's virtio >> devices refuse to work unless the driver acknowledges the flag. > > This should be configurable. Advertisement of that flag must be configurable, or we won't be able to run older guests anymore which don't know it, thus will reject it. The only precondition: there must be no IOMMU if we turn it off. Jan -- Siemens AG, Corporate Technology, CT RTC ITP SES-DE Corporate Competence Center Embedded Linux -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
