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

[Paul Menzel]

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