RE: [PATCH 6/6] iommu/vt-d: Add domain_alloc_user op

Tian, Kevin
2023-09-26T05:36:53Z

> From: Baolu Lu <baolu.lu@linux.intel.com>
> Sent: Thursday, September 21, 2023 9:31 AM
>
> On 9/20/23 9:10 PM, Liu, Yi L wrote:
> >>>> +
> >>>> + domain = iommu_domain_alloc(dev->bus);
> >>> No need to bounce between core and driver. Just,
> >>>
> >>> intel_iommu_domain_alloc(IOMMU_DOMAIN_UNMANAGED);
> >>>
> >>> and fully initialize it before return.
> >> If you are going to do that then intel_iommu_domain_alloc() should
> >> fully initialize the domain, not here.
> > I've also considered what Baolu described, but it requires to do some
> > extra initialization which is duplicated with iommu_domain_alloc().
> > So I chose this simple way.
>
> Okay, got you.
>

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