Hello,
Currently I'm building a new homelab based on omnios.
There a kvm enabled zone is created and inside the zone I have 3 kvm-guests running. These guests are running oracle vm (xen based). All is running fine except if I want to start an vm inside oracle vm, the system complains about:
Error: HVM guest support is unavailable: is VT/AMD-V supported by your CPU and enabled in your BIOS?
Inside the kvm enabled zone, kvm is enabled:
root@ovm1:/root# ls -l /dev/kvm
crw------- 1 root sys 125, 0 Aug 10 11:26 /dev/kvm
root@ovm1:/root#
root@ovm1:/root# modinfo |grep -i kvm
224 fffffffff8408000 3a030 125 1 kvm (kvm driver v0.1)
root@ovm1:/root#
For sure I checked the processor itself from the global zone if it is supported:
root@sea:/root# isainfo -v
64-bit amd64 applications
vmx pclmulqdq aes sse4.2 sse4.1 ssse3 popcnt tscp cx16 sse3 sse2
sse fxsr mmx cmov amd_sysc cx8 tsc fpu
32-bit i386 applications
vmx pclmulqdq aes sse4.2 sse4.1 ssse3 popcnt tscp ahf cx16 sse3
sse2 sse fxsr mmx cmov sep cx8 tsc fpu
root@sea:/root#
and to me it looks I have the required flags available.
inside the lvm-guest the flags are indeed not given to the guest:
[root@ovm2 ~]# uname -s -r -i -p
Linux 2.6.39-400.279.1.el5uek x86_64 x86_64
[root@ovm2 ~]# cat /etc/oracle-release
Oracle VM Server release 5.7
[root@ovm2 ~]# grep flags /proc/cpuinfo
flags : fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush mmx fxsr sse sse2 ss syscall nx lm constant_tsc up nopl pni ssse3 cx16 sse4_1 sse4_2 popcnt aes hypervisor lahf_lm
[root@ovm2 ~]#
it does not matter if I start the kvm guest using
-cpu host \
or using
-cpu qemu64,+vmx,+aes,+sse4.2,+sse4.1,+ssse3 \ # --> this one is faster
So it looks to me that the bios the kvm is using ( which appears to be SeaBIOS (version 0.6.1.2-20110201_165504-titi) ) is not enabling the nested virtualisation by default. Is this correct?
How can I fix this?
Thanks and best regards,
Pieter