On Wed, Mar 20, 2024 at 04:18:05PM +, Shameerali Kolothum Thodi wrote:
>
> What I have noticed is that,
> -read interface works fine and I can receive struct tiommu_hwpt_pgfault data.
> -But once Guest handles the page faults and returns the page response,
> the write to fault fd never
On Fri, Mar 15, 2024 at 09:46:06AM +0800, Baolu Lu wrote:
> On 3/9/24 2:03 AM, Jason Gunthorpe wrote:
> > On Mon, Jan 22, 2024 at 03:38:59PM +0800, Lu Baolu wrote:
> > > --- /dev/null
> > > +++ b/drivers/iommu/iommufd/fault.c
> > > @@ -0,0 +1,255 @@
> > > +// SPDX-License-Identifier: GPL-2.0-only
On Fri, Mar 15, 2024 at 09:16:43AM +0800, Baolu Lu wrote:
> On 3/9/24 3:05 AM, Jason Gunthorpe wrote:
> > On Mon, Jan 22, 2024 at 03:39:00PM +0800, Lu Baolu wrote:
> >
> > > @@ -411,6 +414,8 @@ enum iommu_hwpt_data_type {
> > >* @__reserved: Must be 0
> > >* @data_type: One of enum
On Thu, Mar 14, 2024 at 09:41:45PM +0800, Baolu Lu wrote:
> On 2024/3/9 1:50, Jason Gunthorpe wrote:
> > On Mon, Jan 22, 2024 at 03:38:58PM +0800, Lu Baolu wrote:
> >
> > > +/**
> > > + * enum iommu_hwpt_pgfault_flags - flags for struct iommu_hwpt_pgfault
> > > + *
On Thu, Mar 14, 2024 at 03:41:23PM +0800, Baolu Lu wrote:
> The whole cookie mechanism aims to address two things:
>
> - Extend the domain lifetime until all pending page faults are
> resolved.
Like you answered, I think the flush is a simpler scheme..
> - Associate information about the iommu
