On Fri, 30 Oct 2020 06:16:28 +0000 "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote: > > From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > > Sent: Friday, October 30, 2020 12:58 PM > > > > With the IOMMU driver registering iommu_ops for the mdev_bus, the > > IOMMU > > operations on an mdev could be done in the same way as any normal device > > (for example, PCI/PCIe). There's no need to distinguish an mdev from > > others for iommu operations. Remove the unnecessary code. > > This is really a nice cleanup as the output of this change! :) It's easy to remove a bunch of code when the result is breaking everyone else. Please share with me how SR-IOV backed mdevs continue to work on AMD platforms, or how they might work on ARM platforms, when siov_iommu_ops (VT-d only) becomes the one and only provider of iommu_ops on the mdev bus. Hard NAK on this series. Thanks, Alex
