Re: QNX VM hang on Qemu

[Peter Maydell]

On Wed, 21 Feb 2024 at 18:20, Faiq Ali Sayed <faiqueali.109@gmail.com> wrote:
>
>
>>
>> This is also useful information. I would suggest you look
>> at what the difference is between the image that boots and
>> the one that doesn't: is it the same format (and what format
>> is that)? is the way it is loaded on the real hardware the
>> same, or different?
>
>
> I am not able to distinguish between the images as they are in binary form,
> I noticed that the smaller size image can boot in Qemu.
> I normally put the image into an SD card of the real hardware to boot.
> so it is quite difficult for me now to distinguish.
>
>
>> From the debug info from gdb you provided, the file clearly
>> is not a raw binary file -- the initial bytes seem to be
>> largely ASCII text. So it might be that this image is in
>> a file format that whatever the real-hardware loader
>> recognizes, but QEMU doesn't, whereas the images you have
>> that work are really raw binaries. In that case you'd want
>> to convert the image somehow to a format QEMU can understand
>> (eg ELF, or raw-binary).
>
>
> ahh, that also makes sense, ok now let me try to convert the images, and 
> let's see.
> Does Qemu provide such a tool or do you know any?

We don't know what format these images are in, so hard
to say, but I would expect not (mostly QEMU's image
conversion handling is for filesystems, not guest
binaries). You'll probably do best to look on the QNX
and/or Xilinx side -- Xilinx should document what
file formats it is that their boot process accepts.
Your third-party vendor presumably also knows what
format it is that they're generating the image in.

-- PMM