<html dir="ltr">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" id="owaParaStyle"></style>
</head>
<body fpstyle="1" ocsi="0">
<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">hi,
<div>my setup has two computes nodes, every node has a dual AMD EPYC 7601 CPU config. how can i bring all the CPU features (AES, SSSE3, ...) to the guest VMs. i have tryed with some flavor-metadata but nothing realy helps, the VMs getting just a little subset
of cpu-features.</div>
<div>some investigations to the kvm-settings hit me to the facts that my nova config has "cpu_model=none" !? how can i fix that and bring my AMD EPIC CPU to my nova-config?!</div>
<div><br>
</div>
<div>here is the host /proc/cpuinfo</div>
<div><br>
</div>
<div>
<div>processor : 127</div>
<div>vendor_id : AuthenticAMD</div>
<div>cpu family : 23</div>
<div>model : 1</div>
<div>model name : AMD EPYC 7601 32-Core Processor</div>
<div>stepping : 2</div>
<div>microcode : 0x8001227</div>
<div>cpu MHz : 1200.000</div>
<div>cache size : 512 KB</div>
<div>physical id : 1</div>
<div>siblings : 64</div>
<div>core id : 31</div>
<div>cpu cores : 32</div>
<div>apicid : 127</div>
<div>initial apicid : 127</div>
<div>fpu : yes</div>
<div>fpu_exception : yes</div>
<div>cpuid level : 13</div>
<div>wp : yes</div>
<div>flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc art rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf eagerfpu pni pclmulqdq
monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_l2 cpb hw_pstate retpoline_amd ssbd
ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov
succor smca</div>
<div>bogomips : 4400.08</div>
<div>TLB size : 2560 4K pages</div>
<div>clflush size : 64</div>
<div>cache_alignment : 64</div>
<div>address sizes : 48 bits physical, 48 bits virtual</div>
<div>power management: ts ttp tm hwpstate cpb eff_freq_ro [13] [14]</div>
</div>
<div><br>
</div>
<div>greez & thx,<br>
volker...</div>
</div>
</body>
</html>