Re: [Qemu-devel] [V6 0/4] AMD IOMMU

[David Kiarie]

On Sun, Feb 21, 2016 at 11:20 PM, Jan Kiszka <address@hidden> wrote:
> On 2016-02-21 19:10, David Kiarie wrote:
>> Hello there,
>>
>> Repost, AMD IOMMU patches version 6.
>>
>> Changes since version 5
>>  -Fixed macro formating issues
>>  -changed occurences of IO MMU to IOMMU for consistency
>>  -Fixed capability registers duplication
>>  -Rebased to current master
>
> I suspect this still has some subtle bugs: I'm running the patches over
> master with standard Linux distro as guest, full desktop, and I'm
> getting sporadic segfaults of arbitrary programs. These disappear once I
> disable the IOMMU or switch to the Intel version.

Is this L1 guest or L2 guest ? - haven't got any such so far.

>
> How did you test so far?

I mainly test by logging. I've tested L1 without any iommu-related
command line parameters and with L1 with 'iommu=1 iommu=pt'. L2 guest;
passed-through a device checked it's working correctly, that all.
These guests barely have any load though.

>
> Jan
>
>