On Fri, Jan 15, 2021 at 05:43:36PM +0530, Vivek Gautam wrote:
> Add info about asid_bits and additional flags to table format
> probing header.
> 
> Signed-off-by: Vivek Gautam <vivek.gau...@arm.com>
> Cc: Joerg Roedel <j...@8bytes.org>
> Cc: Will Deacon <will.dea...@arm.com>
> Cc: Michael S. Tsirkin <m...@redhat.com>
> Cc: Robin Murphy <robin.mur...@arm.com>
> Cc: Jean-Philippe Brucker <jean-phili...@linaro.org>
> Cc: Eric Auger <eric.au...@redhat.com>
> Cc: Alex Williamson <alex.william...@redhat.com>
> Cc: Kevin Tian <kevin.t...@intel.com>
> Cc: Jacob Pan <jacob.jun....@linux.intel.com>
> Cc: Liu Yi L <yi.l....@intel.com>
> Cc: Lorenzo Pieralisi <lorenzo.pieral...@arm.com>
> Cc: Shameerali Kolothum Thodi <shameerali.kolothum.th...@huawei.com>
> ---
>  include/uapi/linux/virtio_iommu.h | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/include/uapi/linux/virtio_iommu.h 
> b/include/uapi/linux/virtio_iommu.h
> index 43821e33e7af..8a0624bab4b2 100644
> --- a/include/uapi/linux/virtio_iommu.h
> +++ b/include/uapi/linux/virtio_iommu.h
> @@ -169,7 +169,10 @@ struct virtio_iommu_probe_pasid_size {
>  struct virtio_iommu_probe_table_format {
>       struct virtio_iommu_probe_property      head;
>       __le16                                  format;
> -     __u8                                    reserved[2];
> +     __le16                                  asid_bits;
> +
> +     __le32                                  flags;

This struct should only contain the head and format fields. asid and flags
should go in a specialized structure - virtio_iommu_probe_pgt_arm64 in the
latest spec draft, where I dropped the asid_bits field in favor of an
"ASID16" flag.

Thanks,
Jean

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