linux-kernel - Re: [PATCH 00/20] iommu: Refactoring domain allocation interface

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Date: Tue, 4 Jun 2024 09:02:40 +0800
From: Baolu Lu <baolu.lu@...ux.intel.com>
To: Jason Gunthorpe <jgg@...pe.ca>
Cc: baolu.lu@...ux.intel.com, Yi Liu <yi.l.liu@...el.com>,
 Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
 Robin Murphy <robin.murphy@....com>, Kevin Tian <kevin.tian@...el.com>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
 Kalle Valo <kvalo@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
 Mathieu Poirier <mathieu.poirier@...aro.org>,
 Alex Williamson <alex.williamson@...hat.com>, mst@...hat.com,
 Jason Wang <jasowang@...hat.com>, Thierry Reding <thierry.reding@...il.com>,
 Jonathan Hunter <jonathanh@...dia.com>,
 Mikko Perttunen <mperttunen@...dia.com>, iommu@...ts.linux.dev,
 dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/20] iommu: Refactoring domain allocation interface

On 6/3/24 9:35 PM, Jason Gunthorpe wrote:
> On Wed, May 29, 2024 at 08:02:12PM +0800, Baolu Lu wrote:
>>>> drivers/infiniband/hw/usnic/usnic_uiom.c:       pd->domain = domain
>>>> = iommu_domain_alloc(dev->bus);
>>>>
>>>> This series leave those cases unchanged and keep iommu_domain_alloc()
>>>> for their usage. But new drivers should not use it anymore.
>>>
>>> does it mean there is still domains allocated via iommu_domain_alloc()
>>> on VT-d platform?
>>
>> I think the drivers mentioned above do not run on x86 platforms, or do
>> they?
> 
> usnic does.. What was preventing converting it?

Nothing, just because it wasn't that obvious. :-) I will convert it in
the next version.

Best regards,
baolu