[U-Boot] [PATCH 0/3] x86: coreboot: Support running U-Boot in qemu

[Bin Meng]

Hi Simon,

On Sun, Jan 4, 2015 at 10:28 AM, Simon Glass <sjg at chromium.org> wrote:
> Hi Bin,
>
> On 3 January 2015 at 18:59, Bin Meng <bmeng.cn at gmail.com> wrote:
>> Hi Otavio,
>>
>> On Sun, Jan 4, 2015 at 9:06 AM, Otavio Salvador <otavio at ossystems.com.br> wrote:
>>> On Sat, Jan 3, 2015 at 12:40 PM, Bin Meng <bmeng.cn at gmail.com> wrote:
>>>> Currently when U-Boot is loaded by coreboot in qemu, U-Boot does not
>>>> boot due to several issues. This patch series fix these issues to make
>>>> coreboot support in U-Boot more robust so that it can run on top of
>>>> qemu out of the box.
>>>>
>>>> The command to package u-boot into coreboot.rom:
>>>> ./build/util/cbfstool/cbfstool build/coreboot.rom add-flat-binary \
>>>> -f u-boot-dtb.bin -n fallback/payload -c lzma -l 0x1110000 -e 0x1110015
>>>
>>> It'd be awesome to have it documented somewhere :)
>>
>> Yes, I can document it in README.x86.
>
> Thanks. Also does qemu run U-Boot bare? I assume not. What is the main
> use case for Coreboot + U-Boot under qemu?
>

So far only coreboot can run bare on qemu. It is a specific board
(Emulation board) for qemu in coreboot Kconfig. We can support qemu
running U-Boot bare as well. It is just a matter of time of doing
that. If you think this might be helpful, I can spend some time to
support qemu bare in U-Boot. As for the main use case, I believe this
provides us a way of testing U-Boot coreboot support without a real
hardware, just like the purpose of any emulation/simulation tool we
have in the market.

Regards,
Bin