linux-kernel - RE: [PATCH v6 07/10] iommufd: Fault-capable hwpt attach/detach/replace

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Date: Mon, 17 Jun 2024 07:37:52 +0000
From: "Tian, Kevin" <kevin.tian@...el.com>
To: Baolu Lu <baolu.lu@...ux.intel.com>, Jason Gunthorpe <jgg@...pe.ca>, Joerg
 Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>, Robin Murphy
	<robin.murphy@....com>, Jean-Philippe Brucker <jean-philippe@...aro.org>,
	Nicolin Chen <nicolinc@...dia.com>, "Liu, Yi L" <yi.l.liu@...el.com>, "Jacob
 Pan" <jacob.jun.pan@...ux.intel.com>, Joel Granados <j.granados@...sung.com>
CC: "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
	"virtualization@...ts.linux-foundation.org"
	<virtualization@...ts.linux-foundation.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v6 07/10] iommufd: Fault-capable hwpt
 attach/detach/replace

> From: Baolu Lu <baolu.lu@...ux.intel.com>
> Sent: Sunday, June 9, 2024 3:23 PM
> 
> On 6/7/24 5:30 PM, Tian, Kevin wrote:
> >> From: Lu Baolu <baolu.lu@...ux.intel.com>
> >> Sent: Monday, May 27, 2024 12:05 PM
> >>
> >> Add iopf-capable hw page table attach/detach/replace helpers. The
> pointer
> >> to iommufd_device is stored in the domain attachment handle, so that it
> >> can be echo'ed back in the iopf_group.
> >
> > this message needs an update. now the device pointer is not in the
> > attach handle.
> 
> The iommufd_device pointer is in the attach handle provided by iommufd
> in attach or replace path.

I thought it talked about iommu_attach_handle then it includes only
the domain pointer.

but it's correct if iommufd_attach_handle is being talked here.

depends on what 'domain attachment handle' refers to. 😊