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sysbus: add helpers to add and delete memory regions to the system bus

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Reviewed-by: Richard Henderson  <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-07-24 17:12:11 +03:00
parent 58160bafa2
commit be35694da9
2 changed files with 28 additions and 0 deletions
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22
hw/sysbus.c
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@ -256,3 +256,25 @@ static char *sysbus_get_fw_dev_path(DeviceState *dev)
return strdup(path);
}
void sysbus_add_memory(SysBusDevice *dev, target_phys_addr_t addr,
MemoryRegion *mem)
{
memory_region_add_subregion(get_system_memory(), addr, mem);
}
void sysbus_del_memory(SysBusDevice *dev, MemoryRegion *mem)
{
memory_region_del_subregion(get_system_memory(), mem);
}
void sysbus_add_io(SysBusDevice *dev, target_phys_addr_t addr,
MemoryRegion *mem)
{
memory_region_add_subregion(get_system_io(), addr, mem);
}
void sysbus_del_io(SysBusDevice *dev, MemoryRegion *mem)
{
memory_region_del_subregion(get_system_io(), mem);
}

6
hw/sysbus.h
View File

@ -57,6 +57,12 @@ void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size);
void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq);
void sysbus_mmio_map(SysBusDevice *dev, int n, target_phys_addr_t addr);
void sysbus_add_memory(SysBusDevice *dev, target_phys_addr_t addr,
MemoryRegion *mem);
void sysbus_del_memory(SysBusDevice *dev, MemoryRegion *mem);
void sysbus_add_io(SysBusDevice *dev, target_phys_addr_t addr,
MemoryRegion *mem);
void sysbus_del_io(SysBusDevice *dev, MemoryRegion *mem);
/* Legacy helper function for creating devices. */
DeviceState *sysbus_create_varargs(const char *name,