> From: Peter Xu
> Sent: Tuesday, March 24, 2020 6:07 AM
> To: Liu, Yi L
> Subject: Re: [PATCH v1 09/22] vfio/common: check PASID alloc/free availability
>
> On Sun, Mar 22, 2020 at 05:36:06AM -0700, Liu Yi L wrote:
>
> [...]
>
> > @@ -1256,11 +1334,19
On Sun, Mar 22, 2020 at 05:36:06AM -0700, Liu Yi L wrote:
[...]
> @@ -1256,11 +1334,19 @@ static int vfio_init_container(VFIOContainer
> *container, int group_fd,
> }
>
> if (iommu_type == VFIO_TYPE1_NESTING_IOMMU) {
> -/*
> - * TODO: config flags per host IOMMU nesti
VFIO exposes host IOMMU dual-stage DMA translation programming capability
to userspace by VFIO_TYPE1_NESTING_IOMMU type. However, userspace needs
more info on the nesting type. e.g. the supported stage 1 format and PASID
alloc/free request availability.
This patch gets the iommu nesting cap info f
