From a952c18683bbfa67f6c508c7417001a0bd1b2b97 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 31 Aug 2016 18:15:51 +0200 Subject: [PATCH] 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 Message-Id: <1472660151-19517-1-git-send-email-armbru@redhat.com> Signed-off-by: Paolo Bonzini --- hw/dma/i8257.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/dma/i8257.c b/hw/dma/i8257.c index bffbdea..8bd82e8 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 = { -- 2.7.4