VM-Exits

VM-Exits (Intel’s Software Developer Manual outlines 64 “Basic Exit Reasons”). VM-Exits and subsequent re-entries (“VM-Enters”), even the light-weight ones, can be expensive.

Activities

• Read https://www.qemu.org/2019/11/15/micro-optimizing-kvm-vmexits/

See also

• Paolo Bonzini
• CPUID instruction
• 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