On Mon, Apr 04, 2022 at 01:43:44PM -0400, Matthew Rosato wrote: > At the time a KVM is associated with a vfio group, s390x zPCI devices > must register a special guest indication (GISA designation) to allow > for the use of interpretive execution facilities. This indication is > used to ensure that only the specified KVM can interact with the device. > Similarly, the indication must be removed once the KVM is no longer > associated with the device. > > This patch adds an s390-specific hook to invoke a KVM registration routine > for each device associated with the iommu group; in reality, it will be a > NOP for all but zPCI devices on s390x. > > Signed-off-by: Matthew Rosato <mjrosato@xxxxxxxxxxxxx> > --- > virt/kvm/vfio.c | 35 ++++++++++++++++++++++++++++++++++- > 1 file changed, 34 insertions(+), 1 deletion(-) I wonder if this should be done in the vfio_pci side from the existing kvm notifier Jason
