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i8257: Make device "i8257" unavailable with -device 

The ISA DMA controller needs to be wired up to the ISA bus by
isa_bus_dma() to actually work.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1472660151-19517-1-git-send-email-armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Markus Armbruster 2016-08-31 18:15:51 +02:00 committed by Paolo Bonzini
parent 421cc3e7e8
commit a952c18683
1 changed files with 2 additions and 0 deletions
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2
hw/dma/i8257.c
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@ -600,6 +600,8 @@ static void i8257_class_init(ObjectClass *klass, void *data)
idc->release_DREQ = i8257_dma_release_DREQ;
idc->schedule = i8257_dma_schedule;
idc->register_channel = i8257_dma_register_channel;
/* Reason: needs to be wired up by isa_bus_dma() to work */
dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo i8257_info = {