On 2024/1/18 21:38, Jason Gunthorpe wrote:
On Thu, Jan 18, 2024 at 05:28:01PM +0800, Yi Liu wrote:
On 2024/1/17 20:56, Jason Gunthorpe wrote:
On Wed, Jan 17, 2024 at 04:24:24PM +0800, Yi Liu wrote:
Above indeed makes more sense if there can be concurrent attach/replace/detach
on a single pasid
On Thu, Jan 18, 2024 at 05:28:01PM +0800, Yi Liu wrote:
> On 2024/1/17 20:56, Jason Gunthorpe wrote:
> > On Wed, Jan 17, 2024 at 04:24:24PM +0800, Yi Liu wrote:
> > > Above indeed makes more sense if there can be concurrent
> > > attach/replace/detach
> > > on a single pasid. Just have one doubt s
On 2024/1/17 20:56, Jason Gunthorpe wrote:
On Wed, Jan 17, 2024 at 04:24:24PM +0800, Yi Liu wrote:
Above indeed makes more sense if there can be concurrent attach/replace/detach
on a single pasid. Just have one doubt should we add lock to protect the
whole attach/replace/detach paths. In the att
On Wed, Jan 17, 2024 at 04:24:24PM +0800, Yi Liu wrote:
> Above indeed makes more sense if there can be concurrent attach/replace/detach
> on a single pasid. Just have one doubt should we add lock to protect the
> whole attach/replace/detach paths. In the attach/replace path[1] [2], the
> xarray en
On 2024/1/17 12:17, Tian, Kevin wrote:
From: Jason Gunthorpe
Sent: Tuesday, January 16, 2024 8:58 PM
On Tue, Jan 16, 2024 at 01:18:12AM +, Tian, Kevin wrote:
From: Jason Gunthorpe
Sent: Tuesday, January 16, 2024 1:25 AM
On Sun, Nov 26, 2023 at 10:34:23PM -0800, Yi Liu wrote:
+/**
+ * io
> From: Jason Gunthorpe
> Sent: Tuesday, January 16, 2024 8:58 PM
>
> On Tue, Jan 16, 2024 at 01:18:12AM +, Tian, Kevin wrote:
> > > From: Jason Gunthorpe
> > > Sent: Tuesday, January 16, 2024 1:25 AM
> > >
> > > On Sun, Nov 26, 2023 at 10:34:23PM -0800, Yi Liu wrote:
> > > > +/**
> > > > +
On Tue, Jan 16, 2024 at 01:18:12AM +, Tian, Kevin wrote:
> > From: Jason Gunthorpe
> > Sent: Tuesday, January 16, 2024 1:25 AM
> >
> > On Sun, Nov 26, 2023 at 10:34:23PM -0800, Yi Liu wrote:
> > > +/**
> > > + * iommufd_device_pasid_detach - Disconnect a {device, pasid} to an
> > iommu_domain
> From: Jason Gunthorpe
> Sent: Tuesday, January 16, 2024 1:25 AM
>
> On Sun, Nov 26, 2023 at 10:34:23PM -0800, Yi Liu wrote:
> > +/**
> > + * iommufd_device_pasid_detach - Disconnect a {device, pasid} to an
> iommu_domain
> > + * @idev: device to detach
> > + * @pasid: pasid to detach
> > + *
>
On Sun, Nov 26, 2023 at 10:34:23PM -0800, Yi Liu wrote:
> @@ -534,7 +537,17 @@ iommufd_device_do_replace(struct iommufd_device *idev,
> static struct iommufd_hw_pagetable *do_attach(struct iommufd_device *idev,
> struct iommufd_hw_pagetable *hwpt, struct attach_data *data)
> {
> -
From: Kevin Tian
This introduces three APIs for device drivers to manage pasid attach/
replace/detach.
int iommufd_device_pasid_attach(struct iommufd_device *idev,
u32 pasid, u32 *pt_id);
int iommufd_device_pasid_replace(struct iommufd_device *idev,
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