| Message ID | 20220714081822.3717693-1-aik@ozlabs.ru |
|---|---|
| Headers | show |
| Series | powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains | expand |
On Thu, Jul 14, 2022 at 06:18:19PM +1000, Alexey Kardashevskiy wrote: > Here is another take on iommu_ops on POWER to make VFIO work > again on POWERPC64. > > The tree with all prerequisites is here: > https://github.com/aik/linux/tree/kvm-fixes-wip > > The previous discussion is here: > https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20220707135552.3688927-1-aik@ozlabs.ru/ > https://patchwork.ozlabs.org/project/kvm-ppc/patch/20220701061751.1955857-1-aik@ozlabs.ru/ > > Please comment. Thanks. > > > > 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 It has been a little while - and I think this series is still badly needed by powerpc, right? So, reminder. Thanks, Jason
Jason Gunthorpe <jgg@nvidia.com> writes: > On Thu, Jul 14, 2022 at 06:18:19PM +1000, Alexey Kardashevskiy wrote: >> Here is another take on iommu_ops on POWER to make VFIO work >> again on POWERPC64. >> >> The tree with all prerequisites is here: >> https://github.com/aik/linux/tree/kvm-fixes-wip >> >> The previous discussion is here: >> https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20220707135552.3688927-1-aik@ozlabs.ru/ >> https://patchwork.ozlabs.org/project/kvm-ppc/patch/20220701061751.1955857-1-aik@ozlabs.ru/ >> >> Please comment. Thanks. >> >> >> >> 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 > > It has been a little while - and I think this series is still badly > needed by powerpc, right? Your comments on patch 3 left me with the impression it needed a respin, but maybe I misread that. Alexey's reply that it needed testing also made me think it wasn't ready to pick up. cheers
On Fri, Sep 02, 2022 at 05:33:30PM +1000, Michael Ellerman wrote: > Jason Gunthorpe <jgg@nvidia.com> writes: > > On Thu, Jul 14, 2022 at 06:18:19PM +1000, Alexey Kardashevskiy wrote: > >> Here is another take on iommu_ops on POWER to make VFIO work > >> again on POWERPC64. > >> > >> The tree with all prerequisites is here: > >> https://github.com/aik/linux/tree/kvm-fixes-wip > >> > >> The previous discussion is here: > >> https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20220707135552.3688927-1-aik@ozlabs.ru/ > >> https://patchwork.ozlabs.org/project/kvm-ppc/patch/20220701061751.1955857-1-aik@ozlabs.ru/ > >> > >> Please comment. Thanks. > >> > >> > >> > >> 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 > > > > It has been a little while - and I think this series is still badly > > needed by powerpc, right? > > Your comments on patch 3 left me with the impression it needed a respin, > but maybe I misread that. It would be nice, but I understand Alexey will not work on it anymore, so I wouldn't object to as-is > Alexey's reply that it needed testing also made me think it wasn't > ready to pick up. Well, if so, someone still needs to finish this work. But I think he tested it, he fixed things that could have only been found by testing.. Jason
Here is another take on iommu_ops on POWER to make VFIO work again on POWERPC64. The tree with all prerequisites is here: https://github.com/aik/linux/tree/kvm-fixes-wip The previous discussion is here: https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20220707135552.3688927-1-aik@ozlabs.ru/ https://patchwork.ozlabs.org/project/kvm-ppc/patch/20220701061751.1955857-1-aik@ozlabs.ru/ Please comment. Thanks. 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 arch/powerpc/include/asm/iommu.h | 6 +- arch/powerpc/include/asm/pci-bridge.h | 7 + arch/powerpc/platforms/pseries/pseries.h | 5 + arch/powerpc/kernel/iommu.c | 257 +++++++++++++++++++++- 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/setup.c | 3 + drivers/vfio/vfio_iommu_spapr_tce.c | 96 ++------ 9 files changed, 345 insertions(+), 94 deletions(-)