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1a10285665
Some sysbus devices have conditional mmio regions. This happens for instance with the hw/acpi/ged device. In that case it becomes difficult to predict which index a specific MMIO region corresponds to when one needs to mmio map the region. Introduce a new helper that takes the name of the region instead of its index. If the region is not found this returns -1. Otherwise it maps the corresponding index and returns this latter. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20250714080639.2525563-31-eric.auger@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>