docs/system/cpu-models-x86.rst.inc

1 Recommendations for KVM CPU model configuration on x86 hosts
15     This passes the host CPU model features, model, stepping, exactly to
16     the guest. Note that KVM may filter out some host CPU model features
22 (2) **Named model**
34 model".  This uses the QEMU "Named model" feature, automatically picking
35 a CPU model that is similar the host CPU, and then adding extra features
36 to approximate the host model as closely as possible. This does not
51 lists the long term stable CPU model versions (eg Haswell-v4).
52 In addition to what is listed, there are also many CPU model
53 aliases which resolve to a different CPU model version,
68 Administrators / applications are recommended to use the CPU model that
71 compatibility is required, use the newest CPU model that is compatible
127 features are included if using "Host passthrough" or "Host model".
161   Not included by default in any Intel CPU model.
171   Not included by default in any Intel CPU model.
181   Not included by default in any Intel CPU model.
193   This is an MSR (Model-Specific Register) feature rather than a CPUID feature,
273 Administrators / applications are recommended to use the CPU model that
276 compatibility is required, use the newest CPU model that is compatible
305 features are included if using "Host passthrough" or "Host model".
329   Not included by default in any AMD CPU model.
337   when using "Host model", because this is a virtual feature that
343   Not included by default in any AMD CPU model.
355   Not included by default in any AMD CPU model.
365   Not included by default in any AMD CPU model.
459 Host model::
461     <cpu mode='host-model'/>
463 Host model with feature customization::
465     <cpu mode='host-model'>
470 Named model::
473         <model name="Westmere"/>
476 Named model with feature customization::
479         <model name="Westmere"/>