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d71b22bb6a
Character devices defined with -serial and -parallel are for board
initialization to wire up. Board code examines serial_hds[] and
parallel_hds[] to find them, and creates devices with their qdev
chardev properties set accordingly.
Except a few devices go on a fishing expedition for a suitable backend
instead of exposing a chardev property for board code to set: they use
serial_hds[] (often via qemu_char_get_next_serial()) or parallel_hds[]
in their realize() or init() method to connect to a backend.
Picking up backends that way works when the devices are created by
board code. But it's inappropriate for -device or device_add. Not
only is it inconsistent with how the other characrer device models
work (they connect to a backend explicitly identified by a "chardev"
property), it breaks when the backend has been picked up by the board
or a previous -device / device_add already.
Example:
$ qemu-system-ppc64 -M bamboo -S -device i82378 -device pc87312 -device pc87312
qemu-system-ppc64: -device pc87312: Property 'isa-parallel.chardev' can't take value 'parallel0', it's in use
Mark them with suitable FIXME comments.
Cc: Li Guang <lig.fnst@cn.fujitsu.com>
Cc: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Cc: Antony Pavlov <antonynpavlov@gmail.com>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Cc: "Andreas Färber" <andreas.faerber@web.de>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
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| .. | ||
| allwinner-a10.c | ||
| armv7m.c | ||
| boot.c | ||
| collie.c | ||
| cubieboard.c | ||
| digic.c | ||
| digic_boards.c | ||
| exynos4_boards.c | ||
| exynos4210.c | ||
| gumstix.c | ||
| highbank.c | ||
| integratorcp.c | ||
| kzm.c | ||
| mainstone.c | ||
| Makefile.objs | ||
| musicpal.c | ||
| netduino2.c | ||
| nseries.c | ||
| omap1.c | ||
| omap2.c | ||
| omap_sx1.c | ||
| palm.c | ||
| pxa2xx.c | ||
| pxa2xx_gpio.c | ||
| pxa2xx_pic.c | ||
| realview.c | ||
| spitz.c | ||
| stellaris.c | ||
| stm32f205_soc.c | ||
| strongarm.c | ||
| strongarm.h | ||
| tosa.c | ||
| versatilepb.c | ||
| vexpress.c | ||
| virt.c | ||
| xilinx_zynq.c | ||
| z2.c | ||