OpenSBI fw_dynamic firmware does not boot 32-bit kernel on QEMU 'virt'

Atish Patra atishp at atishpatra.org
Wed Dec 16 12:57:16 EST 2020


On Wed, Dec 16, 2020 at 1:15 AM Bin Meng <bmeng.cn at gmail.com> wrote:
>
> Hi,
>
> With latest QEMU HEAD, 32-bit kernel with the following kernel commit
> reverted [1]
>
> 1bd14a66ee5200d6a24419cbd2e0a0fccd4da36f ("RISC-V: Remove any memblock
> representing unusable memory area")
>
> still does not boot on QEMU 'virt'. However explicitly specifying
> -bios to use the fw_jump firmware will allow the kernel to boot.
>
> When QEMU switched OpenSBI from fw_jump to fw_dynamic during the 5.2.0
> development cycle, I remember at that time I tested this on 32-bit
> machine for both 'virt' and 'sifive_u'. See the following commit
> message as it indicated 32-bit testing.
>
> 2cacd8414daf6a0643926392f05fd397ed1e9b66 "hw/riscv: Use pre-built bios
> image of generic platform for virt & sifive_u"
>
> I don't have too much time to do the debugging. I hope someone could
> pick this up and identify where the problem is.
>
> [1] http://lists.infradead.org/pipermail/linux-riscv/2020-December/003925.html
>

Thanks for reporting the issue. I am going to take a look.

> Regards,
> Bin
>
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> opensbi at lists.infradead.org
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-- 
Regards,
Atish



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