17b9f38982
Currently it is possible to attach several arm-smmuv3 devices to the
same bus although it is a wrong setup.
Change the prototype of pci_setup_iommu_per_bus to pass an error
handle. This latter is set when iommu_per_bus is already set and
used by the single caller (smmu_base_realize) to report a useful
error to the end-user.
While at it document pci_setup_iommu_per_bus callback in the header.
Fixes: 66d2f665e1 ("hw/arm/virt: Allow user-creatable SMMUv3 dev instantiation")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Nathan Chen <nathanc@nvidia.com>
Reviewed-by: Shameer Kolothum <skolothumtho@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@mailo.com>
Message-id: 20260603124415.1120808-1-eric.auger@redhat.com
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>