diff options
| author | Alexander Graf <agraf@suse.de> | 2014-09-24 12:36:30 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-11-04 23:26:14 +0100 |
| commit | 471a9bc14444e79bb826616becd2e5531e591d30 (patch) | |
| tree | 37693aa15037729d55f5006d774499b6b5d07f3a | |
| parent | b797318666dade9675a253d311125ae7b568e2f8 (diff) | |
sysbus: Expose MMIO enumeration helper
Sysbus devices have a range of MMIO regions they expose. The exact number
of regions is device specific and internal information to the device model.
Expose whether a region exists via a public interface. That way our platform
bus enumeration code can dynamically determine how many regions exist.
Signed-off-by: Alexander Graf <agraf@suse.de>
| -rw-r--r-- | hw/core/sysbus.c | 6 | ||||
| -rw-r--r-- | include/hw/sysbus.h | 1 |
2 files changed, 7 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) { diff --git a/include/hw/sysbus.h b/include/hw/sysbus.h index 2a3cfa785f..6175bf990a 100644 --- a/include/hw/sysbus.h +++ b/include/hw/sysbus.h @@ -67,6 +67,7 @@ void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size); bool sysbus_has_irq(SysBusDevice *dev, int n); +bool sysbus_has_mmio(SysBusDevice *dev, unsigned int n); void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq); bool sysbus_is_irq_connected(SysBusDevice *dev, int n); qemu_irq sysbus_get_connected_irq(SysBusDevice *dev, int n); |