Are you sure QEMU/MIPS does not support SMP? Below link written in 2016 clearly shows something was working then.
https://www.mips.com/blog/how-to-run-smp-linux-in-qemu-on-a-mips64-release-6-cpu/ Also, as Lixing mentioned in our private exchange, there is SMP support for loongson. Lixing, I assume loongson SMP support is already merged in QEMU repo, right? Can you point out the relevant source code directories? Would love to get more pointers here! Thanks! Jun On Thu, Jan 9, 2020 at 1:24 PM Aurelien Jarno <[email protected]> wrote: > > On 2020-01-04 20:46, Jun Sun wrote: > > On Wed, Jan 1, 2020 at 6:50 PM Jun Sun <[email protected]> wrote: > > > > > > Hi, all, > > > > > > Debian/mips64el runs well on qemu-system-mips64el until I turned on smp > > > option with a number of 2 or higher. See the error message below. It > > > usually hangs pretty early on. > > > > > QEMU/mips doesn't really support SMP. The -smp option used to be for > SMT, but I am not even sure it really worked. > > All that said, it's still a bug in QEMU to accept this option. > > -- > Aurelien Jarno GPG: 4096R/1DDD8C9B > [email protected] http://www.aurel32.net
