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isa: add isa_address_space()

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A helper that returns the address space used by ISA devices.  Useful
for getting rid of isa_mem_base, multiple ISA buses, or ISA buses behind
bridges.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Avi Kivity 2011-08-15 17:17:35 +03:00 • committed by Anthony Liguori
parent c5b3572fc6
commit c839adec88
2 changed files with 7 additions and 0 deletions
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6
hw/isa-bus.c
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@ -20,6 +20,7 @@
#include "monitor.h"
#include "sysbus.h"
#include "isa.h"
#include "exec-memory.h"
struct ISABus {
BusState qbus;
@ -202,4 +203,9 @@ static char *isabus_get_fw_dev_path(DeviceState *dev)
return strdup(path);
}
MemoryRegion *isa_address_space(ISADevice *dev)
{
return get_system_memory();
}
device_init(isabus_register_devices)