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-rw-r--r--hw/core/sysbus.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/core/sysbus.c b/hw/core/sysbus.c
index 945dec53d0..84af59379d 100644
--- a/hw/core/sysbus.c
+++ b/hw/core/sysbus.c
@@ -110,6 +110,12 @@ void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq)
qdev_connect_gpio_out_named(DEVICE(dev), SYSBUS_DEVICE_GPIO_IRQ, n, irq);
}
+/* Check whether an MMIO region exists */
+bool sysbus_has_mmio(SysBusDevice *dev, unsigned int n)
+{
+ return (n < dev->num_mmio);
+}
+
static void sysbus_mmio_map_common(SysBusDevice *dev, int n, hwaddr addr,
bool may_overlap, int priority)
{