> From: Liu, Yi L
> Sent: Friday, January 31, 2020 8:41 PM
> To: Alex Williamson
> Subject: RE: [RFC v3 1/8] vfio: Add VFIO_IOMMU_PASID_REQUEST(alloc/free)
> > > +static int vfio_iommu_type1_pasid_free(struct vfio_iommu *iommu,
> > > +
Hi Alex,
On Fri, 31 Jan 2020 12:41:06 +
"Liu, Yi L" wrote:
> > > +static int vfio_iommu_type1_pasid_free(struct vfio_iommu *iommu,
> > > +unsigned int pasid)
> > > +{
> > > + struct vfio_mm *vmm = iommu->vmm;
> > > + int ret = 0;
> > > +
> > > +
> From: Liu, Yi L
> Sent: Friday, January 31, 2020 8:41 PM
> To: Alex Williamson
> Subject: RE: [RFC v3 1/8] vfio: Add VFIO_IOMMU_PASID_REQUEST(alloc/free)
>
> Hi Alex,
>
> > From: Alex Williamson [mailto:alex.william...@redhat.com]
> > Sent: Thursday, January
Hi Alex,
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Thursday, January 30, 2020 7:56 AM
> To: Liu, Yi L
> Subject: Re: [RFC v3 1/8] vfio: Add VFIO_IOMMU_PASID_REQUEST(alloc/free)
>
> On Wed, 29 Jan 2020 04:11:45 -0800
> "Liu, Yi L"
On Wed, 29 Jan 2020 04:11:45 -0800
"Liu, Yi L" wrote:
> From: Liu Yi L
>
> For a long time, devices have only one DMA address space from platform
> IOMMU's point of view. This is true for both bare metal and directed-
> access in virtualization environment. Reason is the source ID of DMA in
>
From: Liu Yi L
For a long time, devices have only one DMA address space from platform
IOMMU's point of view. This is true for both bare metal and directed-
access in virtualization environment. Reason is the source ID of DMA in
PCIe are BDF (bus/dev/fnc ID), which results in only device
