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authorMarkus Armbruster2016-08-31 18:15:51 +0200
committerPaolo Bonzini2016-09-13 19:09:43 +0200
commita952c18683bbfa67f6c508c7417001a0bd1b2b97 (patch)
tree698f96513acd180c70040b868194e650dc26590a /hw/dma/i8257.c
parentRevert "megasas: remove useless check for cmd->frame" (diff)
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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>
Diffstat (limited to 'hw/dma/i8257.c')
-rw-r--r--hw/dma/i8257.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/dma/i8257.c b/hw/dma/i8257.c
index bffbdea0ca..8bd82e8bc8 100644
--- a/hw/dma/i8257.c
+++ b/hw/dma/i8257.c
@@ -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 = {