Remove io_index argument from cpu_register_io_memory()

The parameter is always zero except when registering the three internal
io regions (ROM, unassigned, notdirty).  Remove the parameter to reduce
the API's power, thus facilitating future change.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/hw/iommu.c b/hw/iommu.c
index ae0c56d..694adbd 100644
--- a/hw/iommu.c
+++ b/hw/iommu.c
@@ -375,7 +375,7 @@ void *iommu_init(target_phys_addr_t addr, uint32_t version, qemu_irq irq)
     s->version = version;
     s->irq = irq;
 
-    iommu_io_memory = cpu_register_io_memory(0, iommu_mem_read,
+    iommu_io_memory = cpu_register_io_memory(iommu_mem_read,
                                              iommu_mem_write, s);
     cpu_register_physical_memory(addr, IOMMU_NREGS * 4, iommu_io_memory);