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# harvester
a
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r
Is nested virtualization supported for AMD ?
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harvester:/home/rancher # ls -l /sys/module/kvm_amd/parameters/nested
-r--r--r-- 1 root root 4096 Apr 29 18:31 /sys/module/kvm_amd/parameters/nested
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harvester:/home/rancher # lsmod | grep kvm
kvm_amd               147456  6
ccp                   106496  1 kvm_amd
kvm                  1052672  1 kvm_amd
irqbypass              16384  1 kvm
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harvester:/home/rancher # egrep '(vmx|svm)' --color=always /proc/cpuinfo
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 rep_good nopl cpuid extd_apicid tsc_known_freq pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw perfctr_core ssbd ibrs ibpb stibp vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves clzero xsaveerptr wbnoinvd arat npt nrip_save umip rdpid arch_capabilities
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harvester:/home/rancher # kubectl exec virt-launcher-test-9vp9f -it bash
kubectl exec [POD] [COMMAND] is DEPRECATED and will be removed in a future version. Use kubectl exec [POD] -- [COMMAND] instead.
test:/ # virt-host-validate
  QEMU: Checking for hardware virtualization                                 : PASS
  QEMU: Checking if device /dev/kvm exists                                   : PASS
  QEMU: Checking if device /dev/kvm is accessible                            : PASS
  QEMU: Checking if device /dev/vhost-net exists                             : PASS
  QEMU: Checking if device /dev/net/tun exists                               : PASS
  QEMU: Checking for cgroup 'cpu' controller support                         : PASS
  QEMU: Checking for cgroup 'cpuacct' controller support                     : PASS
  QEMU: Checking for cgroup 'cpuset' controller support                      : PASS
  QEMU: Checking for cgroup 'memory' controller support                      : PASS
  QEMU: Checking for cgroup 'devices' controller support                     : PASS
  QEMU: Checking for cgroup 'blkio' controller support                       : PASS
  QEMU: Checking for device assignment IOMMU support                         : WARN (No ACPI IVRS table found, IOMMU either disabled in BIOS or not supported by this hardware platform)
  QEMU: Checking for secure guest support                                    : WARN (Unknown if this platform has Secure Guest support)
   LXC: Checking for Linux >= 2.6.26                                         : PASS
   LXC: Checking for namespace ipc                                           : PASS
   LXC: Checking for namespace mnt                                           : PASS
   LXC: Checking for namespace pid                                           : PASS
   LXC: Checking for namespace uts                                           : PASS
   LXC: Checking for namespace net                                           : PASS
   LXC: Checking for namespace user                                          : PASS
   LXC: Checking for cgroup 'cpu' controller support                         : PASS
   LXC: Checking for cgroup 'cpuacct' controller support                     : PASS
   LXC: Checking for cgroup 'cpuset' controller support                      : PASS
   LXC: Checking for cgroup 'memory' controller support                      : PASS
   LXC: Checking for cgroup 'devices' controller support                     : PASS
   LXC: Checking for cgroup 'freezer' controller support                     : PASS
   LXC: Checking for cgroup 'blkio' controller support                       : PASS
   LXC: Checking if device /sys/fs/fuse/connections exists                   : PASS
b
and you have nested virtualization enabled on the host? 
cat /sys/module/kvm_*/parameters/nested
should give you 
Y
.
fwiw, i'm running harvester in libvirt using nested virtualization (on intel)
r
@better-garage-30620 yes. its enabled, but my host is EPYC based
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harvester:/home/rancher # cat /sys/module/kvm_amd/parameters/nested
1
Probably some bug in 1.1.2
b
you need to check that on the proxmox hypervisor, not on harvester
r
of course, its enabled, have openstack running there also
👍 1
b
I also have the same issue, I’ve installed Harvester on a bare-metal server using AMD Ryzen 9 5900X 12-Core Processor
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