Re: [PATCH 0/2] s390x/pci: small set of fixes

[Cédric Le Goater]

Hello Matthew,

On 11/9/23 23:53, Matthew Rosato wrote:
> The following set of changes are associated with issues exposed by testing
> of the 'vfio: Adopt iommufd' series.
>
> The first patch fixes an existing assumption that a vfio device will always
> have a group fd (which is no longer true if cdev is used, which can only
> happen once the iommufd backend is used).  This patch really only needs to
> go into 8.2 if the 'vfio: Adopt iommufd' series does (but would be fine to
> go into 8.2 without it too).

It is a bit late for the 8.2. So we have time to polish v5 of the 'vfio: Adopt
iommufd' series a bit more. I should include the v6 in an early PR for a 9.0.
 
> The second patch fixes an issue where we do not detect that a vfio DMA limit
> was never read from vfio.  This is actually an existing bug as it's possible
> for an older host kernel to be missing this support today; so ideally this one
> should be targeted for 8.2 regardless.

Nevertheless, I hope these two fixes can reached 8.2 since they are good
to have anyhow.

Thanks,

C.

 
> Matthew Rosato (2):
>    s390x/pci: bypass vfio DMA counting when using cdev
>    s390x/pci: only limit DMA aperture if vfio DMA limit reported
>
>   hw/s390x/s390-pci-vfio.c | 8 ++++++--
>   1 file changed, 6 insertions(+), 2 deletions(-)