update: fixed by https://review.coreboot.org/c/coreboot/+/66345
demo of faulty coreboot cpuid usage
rbx is not restored after the call to cpuid
add rbx to clobber, or use compiler intrinsics
via run_fixed.sh
demo of faulty coreboot cpuid usage
rbx is not restored after the call to cpuid
add rbx to clobber, or use compiler intrinsics
via run_fixed.sh