1. List running VMs

1sudo virsh list

1[ecomaikgolf@laptop ~/]$ sudo virsh list
2[sudo] password for ecomaikgolf: 
3 Id   Name            State
4-------------------------------
5 1    fedora-kernel   running

1. Send qemu-monitor command

1sudo virsh qemu-monitor-command VMNAME --hmp "dump-guest-memory /var/lib/libvirt/qemu/dump/test"

1sudo virsh qemu-monitor-command fedora-kernel --hmp "dump-guest-memory /var/lib/libvirt/qemu/dump/test"

1[ecomaikgolf@laptop ~/]$ sudo du -h /var/lib/libvirt/qemu/dump/test
22.1G  /var/lib/libvirt/qemu/dump/test

Note: Take note about filesystem permissions + SELinux. Dump the RAM to the libvirt path I’ve shown if you get permission errors.