Re: [PATCH 01/10] iommu/vt-d: Introduce native SVM capable flag

Lu Baolu
2019-11-18T01:22:07Z

Hi,

On 11/16/19 7:09 AM, Jacob Pan wrote:
> Shared Virtual Memory(SVM) is based on a collective set of hardware
> features detected at runtime. There are requirements for matching CPU
> and IOMMU capabilities.
>
> This patch introduces a flag which will be used to mark and test the
> capability of SVM.
>
> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>

Acked-by: Lu Baolu <baolu.lu@linux.intel.com>

Best regards,
baolu

> ---
> include/linux/intel-iommu.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
> index ed11ef594378..63118991824c 100644
> --- a/include/linux/intel-iommu.h
> +++ b/include/linux/intel-iommu.h
> @@ -433,6 +433,7 @@ enum {
>
> #define VTD_FLAG_TRANS_PRE_ENABLED (1 << 0)
> #define VTD_FLAG_IRQ_REMAP_PRE_ENABLED (1 << 1)
> +#define VTD_FLAG_SVM_CAPABLE (1 << 2)
>
> extern int intel_iommu_sm;
>
>