> From: Jason Gunthorpe
> Sent: Wednesday, June 12, 2024 9:24 PM
>
> On Fri, Jun 07, 2024 at 09:17:28AM +, Tian, Kevin wrote:
> > > From: Lu Baolu
> > > Sent: Monday, May 27, 2024 12:05 PM
> > >
> > > +static ssize_t iommufd_fault_fops_read(struct file *filep, char __user
> *buf,
> > > +
On 6/12/24 9:25 PM, Jason Gunthorpe wrote:
On Sat, Jun 08, 2024 at 05:58:34PM +0800, Baolu Lu wrote:
+static int iommufd_fault_fops_release(struct inode *inode, struct file *filep)
+{
+ struct iommufd_fault *fault = filep->private_data;
+
+ iommufd_ctx_put(fault->ictx);
+ refc
On Sat, Jun 08, 2024 at 05:58:34PM +0800, Baolu Lu wrote:
> > > +static int iommufd_fault_fops_release(struct inode *inode, struct file
> > > *filep)
> > > +{
> > > + struct iommufd_fault *fault = filep->private_data;
> > > +
> > > + iommufd_ctx_put(fault->ictx);
> > > + refcount_dec(&fault->obj.
On Fri, Jun 07, 2024 at 09:17:28AM +, Tian, Kevin wrote:
> > From: Lu Baolu
> > Sent: Monday, May 27, 2024 12:05 PM
> >
> > +static ssize_t iommufd_fault_fops_read(struct file *filep, char __user
> > *buf,
> > + size_t count, loff_t *ppos)
> > +{
> > + size
On 6/7/24 5:17 PM, Tian, Kevin wrote:
From: Lu Baolu
Sent: Monday, May 27, 2024 12:05 PM
+static ssize_t iommufd_fault_fops_read(struct file *filep, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ size_t fault_size = sizeof(struct iommu_hwpt_pgfau
> From: Lu Baolu
> Sent: Monday, May 27, 2024 12:05 PM
>
> +static ssize_t iommufd_fault_fops_read(struct file *filep, char __user *buf,
> +size_t count, loff_t *ppos)
> +{
> + size_t fault_size = sizeof(struct iommu_hwpt_pgfault);
> + struct iommufd_fa
An iommufd fault object provides an interface for delivering I/O page
faults to user space. These objects are created and destroyed by user
space, and they can be associated with or dissociated from hardware page
table objects during page table allocation or destruction.
User space interacts with
