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SubjectRe: [PATCH] iommu/amd: Fix event counter availability check
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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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