On 11/13/23 4:24 PM, Michael Tokarev wrote:
> 10.11.2023 20:51, Matthew Rosato wrote:
>> If the host kernel lacks vfio DMA limit reporting, do not attempt
>> to shrink the guest DMA aperture.
>>
>> Fixes: df202e3ff3 ("s390x/pci: shrink DMA aperture to be bound by vfio DMA
>> limit")
>> Signed-off-by: Matthew Rosato <mjros...@linux.ibm.com>
>
> Is this stable-8.1 material?
>
> Thanks,
>
> /mjt
>
Yes, I believe it is (sorry, should have added CC stable)
If you have a host kernel that doesn't report the vfio DMA limit the resulting
PCI device will be rendered unusable in the s390x guest due this bug.
Thanks,
Matt
