4968a2c6ed
QEMU fails when used with the following command line:
./ppc64-softmmu/qemu-system-ppc64 -S -machine 40p -device i82374
qemu-system-ppc64: hw/isa/isa-bus.c:110: isa_bus_dma: Assertion `!bus->dma[0] && !bus->dma[1]' failed.
The 40p machine type already creates the device i82374. If specified in the
command line, it will try to create it again, hence generating the error. The
function isa_bus_dma() isn't supposed to be called twice for the same bus.
Check the bus doesn't already have a DMA controller registered before creating
the device.
Fixes: https://bugs.launchpad.net/qemu/+bug/1721224
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180326153441.32641-2-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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|---|---|---|
| .. | ||
| bcm2835_dma.c | ||
| etraxfs_dma.c | ||
| i8257.c | ||
| i82374.c | ||
| Makefile.objs | ||
| omap_dma.c | ||
| pl080.c | ||
| pl330.c | ||
| puv3_dma.c | ||
| pxa2xx_dma.c | ||
| rc4030.c | ||
| soc_dma.c | ||
| sparc32_dma.c | ||
| trace-events | ||
| xilinx_axidma.c | ||
| xlnx-zynq-devcfg.c | ||
| xlnx_dpdma.c | ||