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af9e40aa8f
Drives defined with if!=none are for board initialization to wire up.
Board code calls drive_get() or similar to find them, and creates
devices with their qdev drive properties set accordingly.
Except a few devices go on a fishing expedition for a suitable backend
instead of exposing a drive property for board code to set: they call
driver_get() or drive_get_next() in their realize() or init() method
to implicitly connect to the "next" backend with a certain interface
type.
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 this inconsistent with how the other block device models work
(they connect to a backend explicitly identified by a "drive"
property), it breaks when the "next" backend has been picked up by the
board already.
Example:
$ qemu-system-arm -S -M connex -pflash flash.img -device ssi-sd
Aborted (core dumped)
Mark them with suitable FIXME comments.
Cc: Andrzej Zaborowski <balrogg@gmail.com>
Cc: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Cc: "Andreas Färber" <andreas.faerber@web.de>
Cc: Michael Walle <michael@walle.cc>
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 | ||