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). 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. 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(-) -- 2.41.0
