On 04/10/2018 01:55 AM, Andreas Schwab wrote: > On Apr 10 2018, Kito Cheng <kito.ch...@gmail.com> wrote: > >> You can use -r option (e.g. ./qemu-riscv64 -r 4.15) or set QEMU_UNAME >> environment variable to change the uname for qemu. > > But be aware that the emulated environment still assumes that all system > calls implemented by 4.15 are available, and qemu linux-user generally > just passes them through to the host kernel. If the host kernel is too > old to provide a particular system call the emulation may malfunction. Well understood. For my needs it likely is a non-issue.
jeff