[U-Boot] coreboot uboot qemu x86

[Simon Glass]

Hi Ajoy,


On 29 December 2014 at 07:34, Ajoy Das <dasajoy80 at gmail.com> wrote:
> Hi Simon
>
> Thanks for your reply
>
> I have added u-boot ELF as the coreboot payload
>
> u-boot: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV),
> statically linked, not stripped.
>
> Got this link but its a year old.
> http://lists.denx.de/pipermail/u-boot/2013-July/159140.html
>
> Thanks
> Ajoy
>

Please avoid top posting as it doesn't work well on mailing lists.

I suggest using cbfstool add-flat-binary -f u-boot-dtb.bin -n
fallback/payload -c lzma -l <text_base> -e <entry>

For text_base use CONFIG_SYS_TEXT_BASE which is probably 1110000

For entry use _start which is probably 1110015.

Of course I'm not sure whether your problem is with Coreboot, U-Boot
or qemu, but we'll see.

Also, please can you reply to the list with instructions when you get
it working, or send a patch to doc/README.x86.

Regards,
Simon
>
>
> On Mon, Dec 29, 2014 at 7:36 PM, Simon Glass <sjg at chromium.org> wrote:
>>
>> Hi,
>>
>> On 28 December 2014 at 21:38, Ajoy Das <dasajoy80 at gmail.com> wrote:
>> > Hi
>> >
>> > Need Help
>> >
>> > I want to run U-BOOT as coreboot payload on QEMU platform
>> >
>> > I am on uboot-x86 git
>> >
>> > Compiled U-BOOT with make coreboot-x86_defconfig and make all
>> >
>> > Running qemu with
>> > qemu-system-i386 -bios ../coreboot/build/coreboot.rom -hda disk.img
>> > -nographic -m 1g
>> >
>> > But The system crashes with the following message
>> >
>> > qemu: fatal: Trying to execute code outside RAM or ROM at 0x5e2a36c2
>> >
>> > Loading Segment: addr: 0x0000000001110000 memsz: 0x00000000000588e8
>> > filesz:
>> > 0x00000000000252eb
>> > lb: [0x0000000000100000, 0x000000000012b030)
>> > Post relocation: addr: 0x0000000001110000 memsz: 0x00000000000588e8
>> > filesz:
>> > 0x00000000000252eb
>> > using LZMA
>> > [ 0x01110000, 011688e8, 0x011688e8) <- fffd2770
>> > dest 01110000, end 011688e8, bouncebuffer 3ff77000
>> > Loaded segments
>> > Jumping to boot code at 01110015
>> > CPU0: stack: 00126000 - 00127000, lowest used address 00126b8c, stack
>> > used:
>> > 1140 bytes
>> > entry    = 0x01110015
>> > lb_start = 0x00100000
>> > lb_size  = 0x0002b030
>> > buffer   = 0x3ff77000
>> > qemu: fatal: Trying to execute code outside RAM or ROM at 0x5e2a36c2
>> >
>> > EAX=0000000a EBX=000186a0 ECX=01145d15 EDX=19203eb0
>> > ESI=00000000 EDI=00000000 EBP=01145f6c ESP=01145f54
>> > EIP=5e2a36c2 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
>> > ES =0018 00000000 ffffffff 00cf9300 DPL=0 DS   [-WA]
>> > CS =0010 00000000 ffffffff 00cf9b00 DPL=0 CS32 [-RA]
>> > SS =0018 00000000 ffffffff 00cf9300 DPL=0 DS   [-WA]
>> > DS =0018 00000000 ffffffff 00cf9300 DPL=0 DS   [-WA]
>> > FS =0020 19203f5c ffffffff 00cf9300 DPL=0 DS   [-WA]
>> > GS =0018 00000000 ffffffff 00cf9300 DPL=0 DS   [-WA]
>> > LDT=0000 00000000 0000ffff 00008200 DPL=0 LDT
>> > TR =0000 00000000 0000ffff 00008b00 DPL=0 TSS32-busy
>> > GDT=     19203e60 00000047
>> > IDT=     00000000 00000000
>> > CR0=60000033 CR2=00000000 CR3=00000000 CR4=00000000
>> > DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000
>> > DR6=ffff0ff0 DR7=00000400
>> > CCS=00000218 CCD=01145f50 CCO=ADDL
>> > EFER=0000000000000000
>> > FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
>> > FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
>> > FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
>> > FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
>> > FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
>> > XMM00=00000000000000000000000000000000
>> > XMM01=00000000000000000000000000000000
>> > XMM02=00000000000000000000000000000000
>> > XMM03=00000000000000000000000000000000
>> > XMM04=00000000000000000000000000000000
>> > XMM05=00000000000000000000000000000000
>> > XMM06=00000000000000000000000000000000
>> > XMM07=00000000000000000000000000000000
>> > Aborted (core dumped)
>> >
>> > qemu-system-i386 --version
>> > QEMU emulator version 1.0 (qemu-kvm-1.0), Copyright (c) 2003-2008
>> > Fabrice
>> > Bellard
>> >
>> > Is QEMU not supported for coreboot and u-boot
>>
>> I'm not sure it's been tried but there's no reason why it should work.
>> It seems to be crashing in U-Boot before there is any serial output.
>> Did you put u-boot-dtb.bin as the payload?
>>
>> Regards,
>> Simon
>
>