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Re: OpenSBI fw_dynamic firmware does not boot 32-bit kernel on QEMU 'vir

From: Atish Patra
Subject: Re: OpenSBI fw_dynamic firmware does not boot 32-bit kernel on QEMU 'virt'
Date: Wed, 16 Dec 2020 09:57:16 -0800

On Wed, Dec 16, 2020 at 1:15 AM Bin Meng <bmeng.cn@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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