Virsh setmaxmem

virsh setmaxmem domain size [[--config] [--live] | [--current]]

Command is available at least the Xen, QEMU/KVM and vSphere/ESX hypervisors.

virsh dominfo YOUR_VM_NAME | grep memory

virsh setmaxmem YOUR_VM_NAME 8G
error: Unable to change MaxMemorySize
error: Requested operation is not valid: cannot resize the maximum memory on an active domain

virsh shutdown DOMAIN_NAME

Related command

• virsh setmem YOUR_VM_NAME 8G --config --live
• virsh dominfo YOUR_VM_NAME | grep memory

See also

• virsh Memory Commands: virsh setmaxmem, virsh setmem, virsh dommemstat
• virsh: Storage information, Connecting, Operations, Memory, Snapshots, Networking, CPU, release notes, virsh nodedev-list
• Memory: memory pages, RAM, virsh Memory Commands, OOM, meminfo, vmstat, NAND, DDR, lsmem, /dev/shm, /proc/meminfo, sar -r, IOMMU, pmem, Memory management, Garbage collector, THP, Linux Huge Page TLB, usage, Remote direct memory access (RMDA), SK Hynix, HBM
• KVM, Installation, QEMU, virsh, virtinst, libguestfs-tools, libvirt, qemu, Red Hat Virtualization (RHV), MacVTap, Virtio, oVirt, KVM services, KVM networking, KVM graphics, CPU, KVM on ARM