On Wed, Oct 18, 2023 at 09:26:59PM +0100, Joao Martins wrote:
> Both VFIO and IOMMUFD will need iova bitmap for storing dirties and walking
> the user bitmaps, so move to the common dependency into IOMMUFD. In doing
> so, create the symbol IOMMUFD_DRIVER which designates the builtin code that
> will be used by drivers when selected. Today this means MLX5_VFIO_PCI and
> PDS_VFIO_PCI. IOMMU drivers will do the same (in future patches) when
> supporting dirty tracking and select IOMMUFD_DRIVER accordingly.
>
> Given that the symbol maybe be disabled, add header definitions in
> iova_bitmap.h for when IOMMUFD_DRIVER=n
>
> Signed-off-by: Joao Martins <joao.m.martins@xxxxxxxxxx>
> ---
> drivers/iommu/iommufd/Kconfig | 4 +++
> drivers/iommu/iommufd/Makefile | 1 +
> drivers/{vfio => iommu/iommufd}/iova_bitmap.c | 0
> drivers/vfio/Makefile | 3 +--
> drivers/vfio/pci/mlx5/Kconfig | 1 +
> drivers/vfio/pci/pds/Kconfig | 1 +
> include/linux/iova_bitmap.h | 26 +++++++++++++++++++
> 7 files changed, 34 insertions(+), 2 deletions(-)
> rename drivers/{vfio => iommu/iommufd}/iova_bitmap.c (100%)
Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Jason
