Re: [PATCH 0/5] xen/arm: smmuv1: Fix stream match conflict issue

[Julien Grall <julien@xxxxxxx>]

Hi Rahul,

On 09/03/2021 18:19, Rahul Singh wrote:
> This patch is the work to fix the stream match conflict issue when two devices
> have the same stream-id.
>
> Approach taken is to merge the below commit from Linux driver to fix the
> issue.
>
> 1. "iommu/arm-smmu: Handle stream IDs more dynamically"
>      commit 21174240e4f4439bb8ed6c116cdbdc03eba2126e
> 2. "iommu/arm-smmu: Consolidate stream map entry state"
>      commit 1f3d5ca43019bff1105838712d55be087d93c0da
> 3. "iommu/arm-smmu: Keep track of S2CR state"
>      commit 8e8b203eabd8b9e96d02d6339e4abce3e5a7ea4b
> 4. "iommu/arm-smmu: Add a stream map entry iterator"
>      commit d3097e39302083d58922a3d1032d7d59a63d263d
> 5. "iommu/arm-smmu: Intelligent SMR allocation"
>      commit 588888a7399db352d2b1a41c9d5b3bf0fd482390
A couple of questions:
 * Are they backported verbatim from Linux upstream?
 * Did you check there was no bug fix afterwards?

Cheers,

--
Julien Grall