On Mon, Mar 02, 2015 at 06:56:19PM +1100, Benjamin Herrenschmidt wrote: >On Mon, 2015-03-02 at 15:50 +0800, Wei Yang wrote: >> > >> >Is there a hotplug remove path where we should also be calling >> >iommu_free_table()? >> >> When VF is not introduced, no one calls this on powernv platform. >> >> Each PCI bus is a PE and it has its own iommu table, even a device is >> hotpluged, the iommu table will not be released. > >Actually, I believe Alexey patches to add support for dynamic DMA >windows for KVM guests using VFIO will also alloc/free iommu tables. In >fact his patches somewhat change quite a few things in that area, and >I'm currently reviewing them. Yes, I see these changes before. > >Wei, can you post a new series when you've finished sync'ing with >Bjorn ? At that point, I'll try to work with Alexey to evaluate the >impact of his changes on your patches. Sure, I will do it ASAP. > >Cheers, >Ben. > -- Richard Yang Help you, Help me -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
