Re: [libvirt-users] Live-Migration not possible: error: operation failed: guest CPU doesn't match specification

On Wed, Sep 18, 2019 at 05:07:23PM +0200, Lentes, Bernd wrote: Hello, the output of 'virsh domcapabilities' should contain the most feature-full migratable CPU: ... <mode name='host-model' supported='yes'> <model fallback='forbid'>Skylake-Client-IBRS</model> <vendor>Intel</vendor> <feature policy='require' name='ss'/> <feature policy='require' name='vmx'/> <feature policy='require' name='hypervisor'/> <feature policy='require' name='tsc_adjust'/> <feature policy='require' name='clflushopt'/> <feature policy='require' name='umip'/> <feature policy='require' name='md-clear'/> <feature policy='require' name='stibp'/> <feature policy='require' name='arch-capabilities'/> <feature policy='require' name='ssbd'/> <feature policy='require' name='xsaves'/> <feature policy='require' name='pdpe1gb'/> <feature policy='require' name='invtsc'/> <feature policy='require' name='skip-l1dfl-vmentry'/> </mode> ... Running this command on both machines and feeding the concatenated output to 'virsh hypervisor-cpu-baseline' should give you the intersection between those CPUs. Jano