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isa: Add isa_address_space_io() 

This function permits to retrieve ISA IO address space.
It will be usefull when we need to pass IO address space as argument.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Julien Grall 2012-09-19 12:50:02 +01:00 committed by Andreas Färber
parent 16c6c80ac3
commit ac10027327
2 changed files with 10 additions and 0 deletions
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9
hw/isa-bus.c
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@ -264,4 +264,13 @@ MemoryRegion *isa_address_space(ISADevice *dev)
return get_system_memory();
}
MemoryRegion *isa_address_space_io(ISADevice *dev)
{
if (dev) {
return isa_bus_from_device(dev)->address_space_io;
}
return isabus->address_space_io;
}
type_init(isabus_register_types)

1
hw/isa.h
View File

@ -43,6 +43,7 @@ void isa_bus_irqs(ISABus *bus, qemu_irq *irqs);
qemu_irq isa_get_irq(ISADevice *dev, int isairq);
void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
MemoryRegion *isa_address_space(ISADevice *dev);
MemoryRegion *isa_address_space_io(ISADevice *dev);
ISADevice *isa_create(ISABus *bus, const char *name);
ISADevice *isa_try_create(ISABus *bus, const char *name);
ISADevice *isa_create_simple(ISABus *bus, const char *name);