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isa: add creation function that may fail

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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2011-02-05 14:34:48 +00:00
parent 91c9e09147
commit 86f4a9a5c7
2 changed files with 13 additions and 0 deletions
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12
hw/isa-bus.c
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@ -146,6 +146,18 @@ ISADevice *isa_create(const char *name)
return DO_UPCAST(ISADevice, qdev, dev); return DO_UPCAST(ISADevice, qdev, dev);
} }
ISADevice *isa_try_create(const char *name)
{
DeviceState *dev;
if (!isabus) {
hw_error("Tried to create isa device %s with no isa bus present.",
name);
}
dev = qdev_try_create(&isabus->qbus, name);
return DO_UPCAST(ISADevice, qdev, dev);
}
ISADevice *isa_create_simple(const char *name) ISADevice *isa_create_simple(const char *name)
{ {
ISADevice *dev; ISADevice *dev;

1
hw/isa.h
View File

@ -32,6 +32,7 @@ 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);
ISADevice *isa_create(const char *name); ISADevice *isa_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);
extern target_phys_addr_t isa_mem_base; extern target_phys_addr_t isa_mem_base;