On Mon, 6 Mar 2023 11:29:53 -0600 (CST) Timothy Pearson <tpearson@xxxxxxxxxxxxxxxxxxxxx> wrote: > This patch series reenables VFIO support on POWER systems. It > is based on Alexey Kardashevskiys's patch series, rebased and > successfully tested under QEMU with a Marvell PCIe SATA controller > on a POWER9 Blackbird host. > > Alexey Kardashevskiy (3): > powerpc/iommu: Add "borrowing" iommu_table_group_ops > powerpc/pci_64: Init pcibios subsys a bit later > powerpc/iommu: Add iommu_ops to report capabilities and allow blocking > domains > > Timothy Pearson (1): > Add myself to MAINTAINERS for Power VFIO support > > MAINTAINERS | 5 + > arch/powerpc/include/asm/iommu.h | 6 +- > arch/powerpc/include/asm/pci-bridge.h | 7 + > arch/powerpc/kernel/iommu.c | 246 +++++++++++++++++++++- > arch/powerpc/kernel/pci_64.c | 2 +- > arch/powerpc/platforms/powernv/pci-ioda.c | 36 +++- > arch/powerpc/platforms/pseries/iommu.c | 27 +++ > arch/powerpc/platforms/pseries/pseries.h | 4 + > arch/powerpc/platforms/pseries/setup.c | 3 + > drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++------- > 10 files changed, 338 insertions(+), 94 deletions(-) > For vfio and MAINTAINERS portions, Acked-by: Alex Williamson <alex.williamson@xxxxxxxxxx> I'll note though that spapr_tce_take_ownership() looks like it copied a bug from the old tce_iommu_take_ownership() where tbl and tbl->it_map are tested before calling iommu_take_ownership() but not in the unwind loop, ie. tables we might have skipped on setup are unconditionally released on unwind. Thanks, Alex
