On 05/14/14 13:41, Jaeyong Yoo wrote: > I built the seabios in qemu and try to see the debug message of seabios. > So, I checked the "Serial port debugging" option in Debugging section with > the > serial port base address 0x3f8. (Is this the correct value?) > And, launch qemu with option "-serial stdio" but I don’t see any messages from > seabios. If I want to see the debug message of seabios to the output console, > what am I missing? > > My full command for launching qemu is the following: > $ sudo x86_64-softmmu/qemu-system-x86_64 -enable-kvm -m 1024 -vga vmware > -serial stdio ~/data/qemu-images/ubuntu-13.04-desktop.img
I rely on the qemu debug port rather than on serial: -debugcon file:debug.log -global isa-debugcon.iobase=0x402 Check the DEBUG_IO and DEBUG_LEVEL settings in the SeaBIOS config as well. Laszlo
