Re: [PATCH 1/2] iommu/riscv: Advertise Svpbmt support to generic page table

[Jason Gunthorpe]

On Sat, Apr 11, 2026 at 10:22:22AM +0800, fangyu.yu@xxxxxxxxxxxxxxxxx wrote:
> From: Fangyu Yu <fangyu.yu@xxxxxxxxxxxxxxxxx>
> 
> The RISC-V IOMMU can optionally support Svpbmt page-based memory types
> in its page table format. When present,the generic page table code can
> use this capability to encode memory attributes (e.g. MMIO vs normal
> memory) in PTEs.
> 
> Signed-off-by: Fangyu Yu <fangyu.yu@xxxxxxxxxxxxxxxxx>
> ---
>  drivers/iommu/riscv/iommu.c       | 2 ++
>  include/linux/generic_pt/common.h | 1 +
>  2 files changed, 3 insertions(+)

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason