[coreboot] SMP Linux on QEMU

Jen-Cheng(Tommy) Huang tommy24 at gatech.edu
Fri Sep 11 02:26:51 CEST 2009


Hi,
I am using coreboot v3 with FILO.
I specify "qemu -L . vd.img -smp 4".
But I always see one cpu in /proc/cpuinfo.
Then I tried if SMP works in v2.
However, when I tried to boot, qemu showed the following error messages: (v3
works fine here)
Uncompressing coreboot to RAM.
Jumping to image.
Check CBFS header at fffeffe0
magic is 4f524243
Found CBFS header at fffeffe0
Check fallback/payload
CBFS: follow chain: fff80000 + 38 + 14efa + align -> fff94f40
Check fallback/coreboot_ram
CBFS: follow chain: fff94f40 + 38 + 687f + align -> fff9b800
Check
CBFS: follow chain: fff9b800 + 28 + 547d8 + align -> ffff0000
CBFS:  Could not find file normal/coreboot_ram
Jumping to image.
qemu: fatal: Trying to execute code outside RAM or ROM at 0x000a0000
Does anyone know how to boot up SMP kernel on qemu?
Any hint is very appreciated.
Thanks in advance.

Regards,
Tommy
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