On Mon, Jun 25, 2012 at 11:23:25AM +0800, guanxue...@mprc.pku.edu.cn wrote: > [snip] > >>> > +unrecognized: > >>> > + ?? ??cpu_abort(env, "Wrong register (%d) or wrong operation (%d) in > >>> cp0_set!\n", > >>> > + ?? ?? ?? ?? ?? ??creg, cop); > >>> > >>> The call to cpu_abort() would mean that the guest is able to terminate > >>> QEMU at will, which is not OK. What does real HW do? > >> In my opinion, I just want to terminate qemu when any unhandled or > >> unknown operations happen. > > > > This can make the emulator vulnerable in the security sense. Probably > > Unicore CPUs are not used now in an environment where the guest can > > not be trusted (like cloud computing), but who knows the future? > Is it proper to print such information to monitor? by using monitor_printf().
What if user doesn't open a monitor? Regards, chenwj -- Wei-Ren Chen (陳韋任) Computer Systems Lab, Institute of Information Science, Academia Sinica, Taiwan (R.O.C.) Tel:886-2-2788-3799 #1667 Homepage: http://people.cs.nctu.edu.tw/~chenwj
