diff options
Diffstat (limited to 'hw/sysbus.c')
| -rw-r--r-- | hw/sysbus.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/hw/sysbus.c b/hw/sysbus.c index 6d9d1df419..50c7232799 100644 --- a/hw/sysbus.c +++ b/hw/sysbus.c @@ -48,7 +48,8 @@ void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq) } } -void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr) +static void sysbus_mmio_map_common(SysBusDevice *dev, int n, hwaddr addr, + bool may_overlap, unsigned priority) { assert(n >= 0 && n < dev->num_mmio); @@ -61,11 +62,29 @@ void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr) memory_region_del_subregion(get_system_memory(), dev->mmio[n].memory); } dev->mmio[n].addr = addr; - memory_region_add_subregion(get_system_memory(), - addr, - dev->mmio[n].memory); + if (may_overlap) { + memory_region_add_subregion_overlap(get_system_memory(), + addr, + dev->mmio[n].memory, + priority); + } + else { + memory_region_add_subregion(get_system_memory(), + addr, + dev->mmio[n].memory); + } } +void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr) +{ + sysbus_mmio_map_common(dev, n, addr, false, 0); +} + +void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, + unsigned priority) +{ + sysbus_mmio_map_common(dev, n, addr, true, priority); +} /* Request an IRQ source. The actual IRQ object may be populated later. */ void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p) |