Re: [Qemu-devel] [PATCH] sh7750: Fix crash when accessing PVR/PRR/CVR

[Peter Maydell <peter.maydell@linaro.org>]

On 26 March 2013 14:35, Andreas Färber <afaerber@suse.de> wrote:
> Am 26.03.2013 13:20, schrieb Peter Maydell:
>> Commit b350ab75 causes segfaults on accesses to PVR/PRR/CVR because
>> it tries to call SUPERH_CPU_GET_CLASS() on a pointer that isn't a
>> QOM object. Fix this by getting the actual QOM CPU object first.
>>
>> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
>> ---
>> Tested with the r2d image/instructions from
>> https://oss.renesas.com/modules/document/?Getting%20Started%20with%20SH4%20and%20QEMU
>
> Oops, reproduces with the test image from the QEMU Wiki as well. Seems
> to be a result of cherry-picking this commit before the full SH7750
> QOM'ification.
>
> Is this blocking any work of yours? Otherwise I would try rebasing my
> SH7750 patches so that s->cpu becomes a SuperHCPU as expected here.
> (Not sure if simply reverting my offending patch still works?)

Well, I have a workaround so it doesn't affect me now :-)
I wasn't really doing anything much with the sh4 board, I was just
looking at whether we could get rid of its use of taddr properties.
(Oddly it uses qdev_prop_set_taddr() to set a property which isn't
defined as a TADDR property, but this works anyway...)

-- PMM