Hello, This is v2 of the RFC I originally posted here:
RFCv1: http://permalink.gmane.org/gmane.linux.kernel.iommu/5552 It's changed significantly since then, based on helpful feedback from Alex. In particular, I no longer butcher the IOMMU API, instead making use of a new iommu_attr to indicate that a domain requires support for nesting. All feedback welcome (this is still an RFC after all), Cheers, Will Will Deacon (3): iommu: introduce domain attribute for nesting IOMMUs vfio/iommu_type1: add new VFIO_TYPE1_NESTING_IOMMU IOMMU type iommu/arm-smmu: add support for DOMAIN_ATTR_NESTING attribute drivers/iommu/arm-smmu.c | 112 +++++++++++++++++++++++++++++++++------- drivers/vfio/vfio_iommu_type1.c | 56 +++++++++++++++++--- include/linux/iommu.h | 1 + include/uapi/linux/vfio.h | 2 + 4 files changed, 144 insertions(+), 27 deletions(-) -- 2.0.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
