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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
View File

@ -20,6 +20,7 @@
#include "monitor.h" #include "monitor.h"
#include "sysbus.h" #include "sysbus.h"
#include "isa.h" #include "isa.h"
#include "exec-memory.h"
struct ISABus { struct ISABus {
BusState qbus; BusState qbus;
@ -202,4 +203,9 @@ static char *isabus_get_fw_dev_path(DeviceState *dev)
return strdup(path); return strdup(path);
} }
MemoryRegion *isa_address_space(ISADevice *dev)
{
return get_system_memory();
}
device_init(isabus_register_devices) device_init(isabus_register_devices)

1
hw/isa.h
View File

@ -32,6 +32,7 @@ void isa_init_irq(ISADevice *dev, qemu_irq *p, int isairq);
void isa_init_ioport(ISADevice *dev, uint16_t ioport); void isa_init_ioport(ISADevice *dev, uint16_t ioport);
void isa_init_ioport_range(ISADevice *dev, uint16_t start, uint16_t length); void isa_init_ioport_range(ISADevice *dev, uint16_t start, uint16_t length);
void isa_qdev_register(ISADeviceInfo *info); void isa_qdev_register(ISADeviceInfo *info);
MemoryRegion *isa_address_space(ISADevice *dev);
ISADevice *isa_create(const char *name); ISADevice *isa_create(const char *name);
ISADevice *isa_try_create(const char *name); ISADevice *isa_try_create(const char *name);
ISADevice *isa_create_simple(const char *name); ISADevice *isa_create_simple(const char *name);