linux-kernel - Re: [PATCH v5 5/6] iommu/arm-smmu-v3: Free pasid domains on iommu release

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Message-ID: <CAKHBV27=9PJkWi8oJbhBbHYw1BLkdBKXEUyGSMcNmL9yN1-HPg@mail.gmail.com>
Date:   Thu, 3 Aug 2023 18:17:15 +0800
From:   Michael Shavit <mshavit@...gle.com>
To:     iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     baolu.lu@...ux.intel.com, will@...nel.org, jgg@...dia.com,
        jean-philippe@...aro.org, robin.murphy@....com, nicolinc@...dia.com
Subject: Re: [PATCH v5 5/6] iommu/arm-smmu-v3: Free pasid domains on iommu release

On Thu, Aug 3, 2023 at 6:14 PM Michael Shavit <mshavit@...gle.com> wrote:
>
> The iommu core doesn't guarantee that pasid domains will be detached
> before the device is released.

I'm not certain whether this is possible or not. Is this change really
necessary?