How to kick off second NUMA node

[yfliu2008]

Dear experts,

I am using "qemu-system-riscv32" v6.2 on Ubuntu 22.04 with "virt" machine type with two NUMA nodes, each node has  only one CPU, I have loaded two programs for the two nodes respectively. 

From dtb dump I can see two  CLINT and two PLIC devices, I also added a virtio-serial device for the other NUMA node to use as console.

After launching QEMU, I can use first node's program correctly via serial console. That means the boot ROM has kicked off the first node correctly. But the program for the other numa node doesn't run yet.  Is this the default behavior of NUMA by design?

I  want know how to  kick off the other NUMA node, I also want know how  to achieve inter-node or inter processor interruptions as well. 

But I can't find any materials via Internet searches. Could you give me some hints? 

Regards,

yf