On 23/02/2017 17:48, Radim Krcmar wrote: > Doing it manually doesn't sound useful outside of testing ... > is DPDK actually being used "dynamically"? > (I thought that the setup is decided when the host boots.) Or at the very least when the guest boots. I agree that KVM_ENABLE_CAP is enough. However, changing KVM_CPUID_FEATURES should be handled by userspace (KVM doesn't know about 0x400000xx leaves at all).