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Re: [PATCH 0/5] xen/arm: smmuv1: Fix stream match conflict issue
- To: Julien Grall <julien@xxxxxxx>
- From: Rahul Singh <Rahul.Singh@xxxxxxx>
- Date: Tue, 16 Mar 2021 17:06:52 +0000
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- Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
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- Thread-topic: [PATCH 0/5] xen/arm: smmuv1: Fix stream match conflict issue
Hello Julien,
> On 16 Mar 2021, at 3:04 pm, Julien Grall <julien@xxxxxxx> wrote:
>
> 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?
Yes all the patches are backported verbatim form Linux upstream.
> * Did you check there was no bug fix afterwards?
Yes I checked there is no bug afterwards related to the patches added.
Regards,
Rahul
>
> Cheers,
>
> --
> Julien Grall
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