Re: [PATCH] iommu/amd: Fix event counter availability check
From: Alexander Monakov
Date: Thu Sep 17 2020 - 14:06:20 EST
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?
> > Alexander
> 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?