On Tue, May 07, 2024 at 09:31:53PM -0300, Jason Gunthorpe wrote:
> On Thu, May 02, 2024 at 07:50:36AM +, Kasireddy, Vivek wrote:
> > Hi Jason,
> >
> > >
> > > On Tue, Apr 30, 2024 at 04:24:50PM -0600, Alex Williamson wrote:
> > > > > +static vm_fault_t vfio_pci_dma_buf_fault(struct vm_fault *
On Thu, May 02, 2024 at 07:50:36AM +, Kasireddy, Vivek wrote:
> Hi Jason,
>
> >
> > On Tue, Apr 30, 2024 at 04:24:50PM -0600, Alex Williamson wrote:
> > > > +static vm_fault_t vfio_pci_dma_buf_fault(struct vm_fault *vmf)
> > > > +{
> > > > + struct vm_area_struct *vma = vmf->vma;
> > >
On Thu, May 02, 2024 at 07:50:36AM +, Kasireddy, Vivek wrote:
> Hi Jason,
<...>
> > I'd rather we stick with the original design. Leon is working on DMA
> > API changes that should address half the issue.
> Ok, I'll keep an eye out for Leon's work.
The code for v1 is here:
https://git.kernel
Hi Jason,
>
> On Tue, Apr 30, 2024 at 04:24:50PM -0600, Alex Williamson wrote:
> > > +static vm_fault_t vfio_pci_dma_buf_fault(struct vm_fault *vmf)
> > > +{
> > > + struct vm_area_struct *vma = vmf->vma;
> > > + struct vfio_pci_dma_buf *priv = vma->vm_private_data;
> > > + pgoff_t pgoff = vmf->p
On Tue, Apr 30, 2024 at 04:24:50PM -0600, Alex Williamson wrote:
> > +static vm_fault_t vfio_pci_dma_buf_fault(struct vm_fault *vmf)
> > +{
> > + struct vm_area_struct *vma = vmf->vma;
> > + struct vfio_pci_dma_buf *priv = vma->vm_private_data;
> > + pgoff_t pgoff = vmf->pgoff;
> > +
> > +
On Sun, 21 Apr 2024 23:30:33 -0700
Vivek Kasireddy wrote:
> From Jason Gunthorpe:
> "dma-buf has become a way to safely acquire a handle to non-struct page
> memory that can still have lifetime controlled by the exporter. Notably
> RDMA can now import dma-buf FDs and build them into MRs which all
On 22.04.24 08:30, Vivek Kasireddy wrote:
From Jason Gunthorpe:
"dma-buf has become a way to safely acquire a handle to non-struct page
memory that can still have lifetime controlled by the exporter. Notably
RDMA can now import dma-buf FDs and build them into MRs which allows for
PCI P2P operati
>From Jason Gunthorpe:
"dma-buf has become a way to safely acquire a handle to non-struct page
memory that can still have lifetime controlled by the exporter. Notably
RDMA can now import dma-buf FDs and build them into MRs which allows for
PCI P2P operations. Extend this to allow vfio-pci to export
