On Wed, Feb 08, 2023 at 08:16:38PM -0800, Yi Liu wrote: > From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > > To support nested translation in the userspace, it should check the > underlying hardware information for the capabilities. > > Add intel_iommu_hw_info() to report cap_reg and ecap_reg information. > > Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > Signed-off-by: Yi Liu <yi.l.liu@xxxxxxxxx> > Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx> > Signed-off-by: Yi Sun <yi.y.sun@xxxxxxxxxxxxxxx> > --- > drivers/iommu/intel/iommu.c | 19 +++++++++++++++++++ > drivers/iommu/intel/iommu.h | 1 + > include/uapi/linux/iommufd.h | 21 +++++++++++++++++++++ > 3 files changed, 41 insertions(+) This should come after the next patch in the series Jason