[U-Boot] U-Boot x86 QEMU: Error on boot

[Eric Neblock]

On 11/23/2016 11:35 AM, Tom Rini wrote:
> On Wed, Nov 23, 2016 at 11:04:29AM -0600, Eric Neblock wrote:
>> On 11/22/2016 08:21 AM, Tom Rini wrote:
>>> On Mon, Nov 21, 2016 at 03:31:43PM -0600, Eric Neblock wrote:
>>>> Hello,
>>>>   I'm trying to get u-boot working on QEMU so I understand how it works
>>>> before moving to an embedded system.
>>>>
>>>>   After following the instructions here:
>>>> https://lists.nongnu.org/archive/html/qemu-devel/2015-05/msg04835.html
>>>>
>>>> U-Boot is always crashing, even when omitting the network stuff. Below
>>>> is how I'm currently trying to boot:
>>>>
>>>> qemu-system-i386 -nographic -bios u-boot.rom
>>>>
>>>> And here is the ending result:
>>>>
>>>> U-Boot 2016.11 (Nov 21 2016 - 14:03:23 -0600)
>>>>
>>>> CPU: x86, vendor Intel, device 663h
>>>> DRAM:  128 MiB
>>>> Using default environment
>>>>
>>>> Video: General Protection
>>>> EIP: 0010:[<07f685e4>] EFLAGS: 00000046
>>>> Original EIP :[<fff005e4>]
>>>> EAX: 00000012 EBX: 00000010 ECX: 00000000 EDX: 07d643cf
>>>> ESI: 07fad1dc EDI: 07d643e0 EBP: 07fcf564 ESP: 07d64384
>>>>  DS: 0018 ES: 0018 FS: 0020 GS: 0018 SS: 0018
>>>> CR0: 00000033 CR2: 00000000 CR3: 00000000 CR4: 00000000
>>>> DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
>>>> DR6: ffff0ff0 DR7: 00000400
>>>> Stack:
>>>>     0x07d643c4 : 0x0000001c
>>>>     0x07d643c0 : 0x7acd6388
>>>>     0x07d643bc : 0x00000111
>>>>     0x07d643b8 : 0x000c0000
>>>>     0x07d643b4 : 0x00000000
>>>>     0x07d643b0 : 0x074a7205
>>>>     0x07d643ac : 0x07f87d87
>>>>     0x07d643a8 : 0x7acd6388
>>>>     0x07d643a4 : 0x3b9aca00
>>>>     0x07d643a0 : 0x00000000
>>>>     0x07d6439c : 0x07f8dbe9
>>>>     0x07d64398 : 0x07d67720
>>>>     0x07d64394 : 0x00000002
>>>>     0x07d64390 : 0xc0010001
>>>>     0x07d6438c : 0x00000246
>>>>     0x07d64388 : 0x00000010
>>>> --->0x07d64384 : 0x07f6a997
>>>>     0x07d64380 : 0x00000046
>>>>     0x07d6437c : 0x00000010
>>>>     0x07d64378 : 0x07f685e4
>>>> ### ERROR ### Please RESET the board ###
>>>>
>>>>
>>>> I think I'm on the bleeding edge branch, but even then when reverting to
>>>> the v2016.09.01 tag, I still crash.
>>>>
>>>> If there is any additional information that I can provide please let me
>>>> know.
>>>
>>> qemu-x86 is one of our regularly (every push to mainline) tested
>>> targets.  I invoke mine as:
>>> qemu-system-i386 -nographic -cpu qemu32 -bios u-boot.rom \
>>>   -netdev user,id=net0,tftp=/tftpboot -device e1000,netdev=net0
>>>
>>> What version of qemu are you running?
>>>
>> qemu-system-i386 --version:
>>
>> QEMU emulator version 2.3.1, Copyright (c) 2003-2008 Fabrice Bellard
>>
>> Perhaps important to note is I'm using OpenSuSE 42.1.
> 
> That is older than what we test with which is 2.5
> 
The newer version of qemu is not pushed in to the mainline repo, instead
using the Virtulization repo.

Even when upgrading to version:
QEMU emulator version 2.7.0(Virtualization / openSUSE_Leap_42.1),
Copyright (c) 2003-2016 Fabrice Bellard and the QEMU Project developers

We still see the same results, even when just running:

qemu-system-i386 -nographic -cpu qemu32 -bios u-boot.rom