[U-Boot] coreboot uboot qemu x86

Simon Glass sjg at chromium.org
Mon Dec 29 23:47:47 CET 2014


Hi Ajoy,

> On Mon, Dec 29, 2014 at 9:28 PM, Simon Glass <sjg at chromium.org> wrote:
>
>> Hi Ajoy,
>>
>>
>> > 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?

>> 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
>> >
>>
[snip]
>>
>> 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.

PLEASE add your reply below mine, not above. I have gone to the
trouble of rearranging the thread for this email.

Also leave me on Cc otherwise I might not see your reply.

On 29 December 2014 at 14:31, Ajoy Das <dasajoy80 at gmail.com> wrote:
> Hi Simon
>
> I executed the commands mentioned above. But getting LZMA decode error on
> coreboot
>
> coreboot.rom: 256 kB, bootblocksize 944, romsize 262144, offset 0x0
> alignment: 64 bytes, architecture: x86
>
> Name                           Offset     Type         Size
> cmos_layout.bin                0x0        cmos_layout  1160
> fallback/romstage              0x4c0      stage        17960
> fallback/ramstage              0x4b40     stage        56161
> config                         0x12700    raw          2986
> revision                       0x13300    raw          692
> (empty)                        0x13600    null         181720
>
>
>
> ./cbfstool ../../coreboot.rom add-flat-binary
> -v
> -f /home/ajoy/CISCO-2/uboot/u-boot/u-boot-dtb.bin
> -n fallback/payload
> -c lzma
> -l 01110000
> -e 1110015
>
> fallback/payload               0x13600    payload      173965
>     code  (LZMA compression, offset: 0x38, load: 0x49000, length:
> 173909/391062)
>     entry (0x10efff)
> (empty)                        0x3de00    null         7640
>
>
> Wrote coreboot table at: 3ffce000, 0x154 bytes, checksum 8ea6
> coreboot table: 364 bytes.
> CBMEM ROOT  0. 3ffff000 00001000
> CAR GLOBALS 1. 3fffe000 00001000
> ROMSTAGE    2. 3fffd000 00001000
> GDT         3. 3fffc000 00001000
> IRQ TABLE   4. 3fffb000 00001000
> ACPI        5. 3ffd7000 00024000
> SMBIOS      6. 3ffd6000 00001000
> COREBOOT    7. 3ffce000 00008000
> CBFS: located payload @ fffd3638, 173965 bytes.
> Loading segment from rom address 0xfffd3638
>   code (compression=1)
>   New segment dstaddr 0x49000 memsize 0x5f796 srcaddr 0xfffd3670 filesize
> 0x2a755
>   (cleaned up) New segment addr 0x49000 size 0x5f796 offset 0xfffd3670
> filesize 0x2a755
> Loading segment from rom address 0xfffd3654
>   Entry Point 0x0010efff
> Payload being loaded below 1MiB without region being marked as RAM usable.
> Bounce Buffer at 3ff77000, 352352 bytes
> Loading Segment: addr: 0x0000000000049000 memsz: 0x000000000005f796 filesz:
> 0x000000000002a755
> lb: [0x0000000000100000, 0x000000000012b030)
> Post relocation: addr: 0x0000000000049000 memsz: 0x000000000005f796 filesz:
> 0x000000000002a755
> using LZMA
> lzma: Decoding error = 1
> Could not load payload

Do you really have a 256KB ROM? That seems much too small to hold
Coreboot and U-Boot. It looks like U-Boot alone is 173KB.

Regards,
Simon


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