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SubjectRe: [PATCH] iommu/amd: Fix event counter availability check
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This fix has been accepted in the upstream recently.

https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git/commit/?h=x86/amd

Could you please give this a try?

Thanks,
Suravee

On 2/21/21 8:49 PM, Paul Menzel wrote:
> Dear Suravee,
>
>
> Am 17.09.20 um 19:55 schrieb Alexander Monakov:
>> On Tue, 16 Jun 2020, Suravee Suthikulpanit wrote:
>>
>>>>> Instead of blindly moving the code around to a spot that would just work,
>>>>> I am trying to understand what might be required here. In this case,
>>>>> the init_device_table_dma()should not be needed. I suspect it's the IOMMU
>>>>> invalidate all command that's also needed here.
>>>>>
>>>>> I'm also checking with the HW and BIOS team. Meanwhile, could you please
>>>>> give
>>>>> the following change a try:
>>>> Hello. Can you give any update please?
>
> […]
>
>>> Sorry for late reply. I have a reproducer and working with the HW team to
>>> understand the issue.
>>> I should be able to provide update with solution by the end of this week.
>>
>> Hello, hope you are doing well. Has this investigation found anything?
>
> I am wondering the same. It’d be great to have this fixed in the upstream Linux kernel.
>
>
> Kind regards,
>
> Paul

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