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楼主 |
发表于 2022-5-27 14:20:23
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How to enable Nested virtualization in OpenStack Cloud7 V+ y) s( l% ?
I have installed OpenStack using PackStack in our physical server. After successfully installed, verified that the setup is working fine.
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We need to enable nested virtualization OpenStack cloud at the kernel level:
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[root@openstack]#echo "options kvm-intel nested=y" >> /etc/modprobe.d/dist.conf/ z3 R; e0 F! Z' d: A3 k% N7 R9 d
Modify the following settings in nova.conf file.- L$ V8 I& v/ A1 p3 a- ^- A
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virt_type=kvm
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cpu_mode=host-passthrough
* J. M" G( e9 k7 N$ j“host-passthrough” – use the host CPU model exactly, u. Y" L0 X& d/ x
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this causes libvirt to tell KVM to passthrough the host CPU with no modifications. The difference to host-model, instead of just matching feature flags, every last detail of the host CPU is matched." S! P! Z8 g. `) r6 _, f/ d
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“host-model” – clone the host CPU feature flags
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- V6 B0 ^4 n% |/ F% m# I1 A |3 nReboot your compute Host) g! z0 U) \8 b1 M7 y; d
Validate that nested virtualization is enable at the kernel level:3 D4 J, v9 J! e, u* t; G
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[root@openstack]# cat /sys/module/kvm_intel/parameters/nested% M' ?1 p3 P2 ?! g
Y
' N; m4 S. A2 `! gLaunch new instance on this node, and validate that your instance at the vmx cpu flag enable:
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[root@nested ~]# cat /proc/cpuinfo | grep vmx
1 u( l7 a% r" s! O& N/ i" h6 @flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl eagerfpu pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm tpr_shadow vnmi flexpriority ept fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt
3 g5 a0 ]- Z% b; j: p0 n& ]flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl eagerfpu pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm tpr_shadow vnmi flexpriority ept fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt8 h7 e' M# T! O. c H; x8 J/ i
That’s all. A new virtual machine will be running as a hypervisor. |
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发表于 2022-5-27 09:06:49