[Users] VM migrate failed Host CPU does not provide required features: hle, rtm, rdseed...

[Jehan PROCACCIA]

unfortunatly I don't have cpupools command available and yum provides *cpupools gives nothing .
is it part of commercial virtuozzo support ? I run Virtuozzo Linux release 7.5
if that's the case, is there an other way to remove required cpu feature from the VM and/or host  ?
can I use virt-manager to configure feature or prlct needs to be the only tool to manipulate the xml representation of the VM ? 
moreover, I read from le guide that the host node needs to be free of all VM and CT to create a cpupools, which is not easy with my heavy loaded hosts .

thanks .

----- Mail original -----
De: "Vasily Averin" <vvs at virtuozzo.com>
À: "OpenVZ users" <users at openvz.org>, "Jehan PROCACCIA" <jehan.procaccia at tem-tsp.eu>
Envoyé: Vendredi 7 Septembre 2018 14:57:56
Objet: Re: [Users] VM migrate failed Host CPU does not provide required features: hle, rtm, rdseed...

Dear Jahan, 

cpopools should help in this situation, 
it should mask extra CPU features and it enables live migration between the nodes. 
https://docs.virtuozzo.com/virtuozzo_7_users_guide/managing-high-availability-clusters/managing-cpu-pools.html 


On 09/07/2018 03:45 PM, jehan procaccia TEM-TSP wrote: 


Hello 

when I tried to migrate a VM from on virtuozzo 7 host to an other one I get a CPU capabilities not provided by destination 

# prlctl migrate myVM root at olympos -v 16 
Logging in 
... 
security_level=2 
PrlCleanup::register_hook: 8780700 
EVENT type=100030 
Migration started. 
EVENT type=100001 
EVENT type=100033 
Operation progress ...98%EVENT type=100033 
Operation progress 100% 
EVENT type=100033 
Operation progress ... 0%EVENT type=100031 
Migration cancelled! 
EVENT type=100007 
EVENT type=100001 

Failed to migrate the VM: Operation failed. Failed to execute the operation. (Details: the CPU is incompatible with host CPU: Host CPU does not provide *required features: hle, rtm, rdseed, adx, smap, 3dnowprefetch*) 
resultCount: 0 
PrlCleanup::unregister_hook: 8780700 
Logging off 

indeed those capabilities don't show up in the lshw on the destination host (cf PS below ) 

alhtough myVM doesn't seem to require those capabilities : 

# virsh edit myVM 
... 

<os> 
<type arch='x86_64' machine='pc-i440fx-vz7.7.0'>hvm</type> 
</os> 
<features> 
<acpi/> 
<apic/> 
<pae/> 
<vmcoreinfo state='on'/> 
</features> 
<cpu mode='host-model' check='partial'> 
<model fallback='allow'>Skylake-Client-IBRS</model> 
<topology sockets='1' cores='2' threads='1'/> 
* <feature policy='require' name='ss'/>** 
** <feature policy='require' name='hypervisor'/>** 
** <feature policy='require' name='tsc_adjust'/>** 
** <feature policy='require' name='ssbd'/>** 
** <feature policy='require' name='stibp'/>** 
** <feature policy='require' name='pdpe1gb'/>* 
<feature policy='disable' name='arat'/> 
<feature policy='disable' name='xgetbv1'/> 
<feature policy='disable' name='vmx'/> 
<feature policy='disable' name='xsavec'/> 
<feature policy='disable' name='mpx'/> 
</cpu> 

1) Is it libvirt or virtuozzo (prlctl) that complains about that ? 

2) how can I tell it to forget about those capabilities ? 

3) should I edit myVM properties with virsh edit or prlct or virt-manager ? 

4) are they all compatible (on can read change done by the other ) ? 

Thanks . 

PS : CPU hardware capabilities on source host : 

# lshw 
description: Rack Mount Chassis 
product: PowerEdge R730 (SKU=NotProvided;ModelName=PowerEdge R730) 
vendor: Dell Inc. 
serial: 63NXMK2 
width: 64 bits 
capabilities: smbios-2.8 dmi-2.8 smp vsyscall32 
*-cpu:0 
description: CPU 
product: Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz 
capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu cpuid_faulting pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch epb cat_l3 cdp_l3 intel_pt ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm cqm rdt_a *rdseed *adx smap xsaveopt cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local dtherm ida arat pln pts spec_ctrl intel_stibp flush_l1d cpufreq 
configuration: cores=8 enabledcores=8 threads=16 

on destination (rdseed not listed) 

# lshw 
description: Rack Mount Chassis 
product: PowerEdge R430 (SKU=NotProvided;ModelName=PowerEdge R430) 
vendor: Dell Inc. 
serial: DKYSJD2 
width: 64 bits 
capabilities: smbios-2.8 dmi-2.8 smp vsyscall32 
*-cpu:0 
description: CPU 
product: Intel(R) Xeon(R) CPU E5-2609 v3 @ 1.90GHz 
vendor: Intel Corp. 

capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu cpuid_faulting pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm epb ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc cqm_occup_llc dtherm arat pln pts spec_ctrl intel_stibp flush_l1d cpufreq 
configuration: cores=6 enabledcores=6 threads=6 



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