[U-Boot] coreboot uboot qemu x86
Ajoy Das
dasajoy80 at gmail.com
Tue Dec 30 09:10:24 CET 2014
Hi Simon
Can i do a gdb on u-boot startup on the coreboot environment.
means i want to stop at _start in uboot and connect to gdb.
Thanks
Ajoy
On Tue, Dec 30, 2014 at 11:15 AM, Ajoy Das <dasajoy80 at gmail.com> wrote:
> I tried changing the boot rom size to 2MB.
> But with no effect
>
> coreboot.rom: 2048 kB, bootblocksize 944, romsize 2097152, 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 56190
> config 0x12700 raw 2990
> revision 0x13300 raw 692
> (empty) 0x13600 null 2016728
> HOSTCC cbfstool/rmodtool.o
>
> Thanks
> Ajoy
>
>
>
> On Tue, Dec 30, 2014 at 4:17 AM, Simon Glass <sjg at chromium.org> wrote:
>
>> 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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