[Qemu-devel] QEMU bootup hang in tcg model using mainline QEMU code

[gengdongjiu]

Hi All
  using mainline QEMU code and below boot up commands, the QEMU will be hang 
when do bootup, if I add the "-enable-kvm" parameter, it can boot up 
successfully,  do you know the reason about it?
I also try the "remotes/origin/stable-2.12" branch code using below same boot 
up commands, it does not have this hang issue. it seems the mainline code has 
some issue.


./qemu-system-aarch64  -m 1024 -cpu cortex-a57 -machine virt,gic-version=3 \
  -smp 4 -nographic -kernel Image -append "root=/dev/sda1 console=ttyAMA0 
sched_debug ignore_loglevel" \
  -device virtio-scsi-device,id=scsi -drive 
file=./linaro.img,id=rootimg,cache=unsafe,if=none -device scsi-hd,drive=rootimg