[coreboot] coreboot debugging with qemu-x86

Saket Sinha saket.sinha89 at gmail.com
Fri May 8 12:25:48 CEST 2015


Hi,

I am trying to debug coreboot with qemu-x86 with the following command -

qemu-system-x86  -L . -bios coreboot.rom -nographic

I am getting output something like this - http://pastebin.com/Ae2X5sPe

(Also pasted below)
EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000633
ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 00000000 0000ffff 00009300
CS =f000 ffff0000 0000ffff 00009b00
SS =0000 00000000 0000ffff 00009300
DS =0000 00000000 0000ffff 00009300
FS =0000 00000000 0000ffff 00009300
GS =0000 00000000 0000ffff 00009300
LDT=0000 00000000 0000ffff 00008200
TR =0000 00000000 0000ffff 00008b00
GDT=     00000000 0000ffff
IDT=     00000000 0000ffff
CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000
DR6=ffff0ff0 DR7=00000400

I have build coreboot.rom with the following option in .config -

Payload  ---> Add a payload ---> FILO ;
Payload  ---> FILO version ---> HEAD

Kindly let me know if I am missing something here.

Regards,
Saket Sinha



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