Re: "iommu/amd: Set exclusion range correctly" causes smartpqi offline

From: Qian Cai
Date: Tue Apr 30 2019 - 21:42:12 EST




On 4/29/19 10:23 AM, Joerg Roedel wrote:
> On Fri, Apr 26, 2019 at 11:55:12AM -0400, Qian Cai wrote:
>> https://git.sr.ht/~cai/linux-debug/blob/master/dmesg
>
> Thanks, I can't see any definitions for unity ranges or exclusion ranges
> in the IVRS table dump, which makes it even more weird.
>
> Can you please send me the output of
>
> for f in `ls -1 /sys/kernel/iommu_groups/*/reserved_regions`; do echo "---$f"; cat $f;done
>
> to double-check?

It is going to take a while to reserve that system again to gather the
information. BTW, this is only reproducible on linux-next but not mainline.