호스트가 요청한 기능을 지원하지 않습니다 : CPUID.01H : EDX.ds [bit 21]이 경고는 가상 컴퓨터 성능 또는 사용에 영향을 줍니까?

Question

VM qemu 로그에서 많은 경고를 발견했습니다.이 경고는 가상 시스템 성능이나 사용에 영향을 줍니까? libvirt.xml 파일에 문제가 있습니까? 또는 이러한 경고

있을 것이다 핫 플러그를 지원하는이 내 libvirt를 XML 구성입니다 :

<domain type='kvm' id='315'> 
    <name>instance-000005b2</name> 
    <uuid>793fe065-36a6-4840-80cf-840ebed41d3e</uuid> 
    <maxMemory slots='32' unit='KiB'>68719476736</maxMemory> 
    <memory unit='KiB'>2097152</memory> 
    <currentMemory unit='KiB'>2097152</currentMemory> 
    <vcpu placement='auto'>8</vcpu> 
    <vcpus> 
    <vcpu id='0' enabled='yes' hotpluggable='no' order='1'/> 
    <vcpu id='1' enabled='yes' hotpluggable='yes' order='2'/> 
    <vcpu id='2' enabled='yes' hotpluggable='yes' order='3'/> 
    <vcpu id='3' enabled='yes' hotpluggable='yes' order='4'/> 
    <vcpu id='4' enabled='yes' hotpluggable='yes' order='5'/> 
    <vcpu id='5' enabled='yes' hotpluggable='yes' order='6'/> 
    <vcpu id='6' enabled='yes' hotpluggable='yes' order='7'/> 
    <vcpu id='7' enabled='yes' hotpluggable='yes' order='8'/> 
    </vcpus> 
    <cputune> 
    <shares>2048</shares> 
    <vcpupin vcpu='0' cpuset='0-9,20-29'/> 
    <vcpupin vcpu='1' cpuset='0-9,20-29'/> 
    <emulatorpin cpuset='0-9,20-29'/> 
    </cputune> 
    <numatune> 
    <memory mode='strict' nodeset='0'/> 
    <memnode cellid='0' mode='strict' nodeset='0'/> 
    </numatune> 
    <resource> 
    <partition>/machine</partition> 
    </resource> 
    <os> 
    <type arch='x86_64' machine='pc-i440fx-rhel7.3.0'>hvm</type> 
    <boot dev='hd'/> 
    </os> 
    <features> 
    <acpi/> 
    <apic/> 
    </features> 
    <cpu mode='host-model'> 
    <model fallback='allow'/> 
    <numa> 
     <cell id='0' cpus='0-1' memory='2097152' unit='KiB'/> 
    </numa> 
    </cpu> 
    <devices> 
    <emulator>/usr/libexec/qemu-kvm</emulator> 
    <controller type='virtio-serial' index='0'> 
     <alias name='virtio-serial0'/> 
     <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> 
    </controller> 
    <memballoon model='virtio'> 
     <alias name='balloon0'/> 
     <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> 
    </memballoon> 
    </devices> 
</domain> 

내가는 VM의 QEMU 로그에서 경고를 많이 발견이 가상 머신의 성능에 영향을 미치거나 사용을 경고 하는가? libvirt.xml 파일에 문제가 있습니까? 또는 핫 플러그를 지원하면 이러한 경고가 표시됩니까?

2017-09-14T12:16:03.441702Z qemu-kvm: warning: CPU(s) not present in any NUMA nodes: 2 3 4 5 6 7 
2017-09-14T12:16:03.441773Z qemu-kvm: warning: All CPU(s) up to maxcpus should be described in NUMA config 
warning: host doesn't support requested feature: CPUID.01H:EDX.ds [bit 21] 
warning: host doesn't support requested feature: CPUID.01H:EDX.acpi [bit 22] 
warning: host doesn't support requested feature: CPUID.01H:EDX.ht [bit 28] 
warning: host doesn't support requested feature: CPUID.01H:EDX.tm [bit 29] 
warning: host doesn't support requested feature: CPUID.01H:EDX.pbe [bit 31] 
warning: host doesn't support requested feature: CPUID.01H:ECX.dtes64 [bit 2] 
warning: host doesn't support requested feature: CPUID.01H:ECX.monitor [bit 3] 
warning: host doesn't support requested feature: CPUID.01H:ECX.ds_cpl [bit 4] 
warning: host doesn't support requested feature: CPUID.01H:ECX.vmx [bit 5] 
warning: host doesn't support requested feature: CPUID.01H:ECX.smx [bit 6] 
warning: host doesn't support requested feature: CPUID.01H:ECX.est [bit 7] 
warning: host doesn't support requested feature: CPUID.01H:ECX.tm2 [bit 8] 
warning: host doesn't support requested feature: CPUID.01H:ECX.xtpr [bit 14] 
warning: host doesn't support requested feature: CPUID.01H:ECX.pdcm [bit 15] 
warning: host doesn't support requested feature: CPUID.01H:ECX.dca [bit 18] 
warning: host doesn't support requested feature: CPUID.01H:ECX.osxsave [bit 27] 
warning: host doesn't support requested feature: CPUID.01H:EDX.ds [bit 21] 
warning: host doesn't support requested feature: CPUID.01H:EDX.acpi [bit 22] 
warning: host doesn't support requested feature: CPUID.01H:EDX.ht [bit 28] 
warning: host doesn't support requested feature: CPUID.01H:EDX.tm [bit 29] 
warning: host doesn't support requested feature: CPUID.01H:EDX.pbe [bit 31] 
warning: host doesn't support requested feature: CPUID.01H:ECX.dtes64 [bit 2] 
warning: host doesn't support requested feature: CPUID.01H:ECX.monitor [bit 3] 
warning: host doesn't support requested feature: CPUID.01H:ECX.ds_cpl [bit 4] 

Answer 1

어쩌면 당신이 시도 할 수 :

mode='host-passthrough' 

대신 :

mode='host-model'