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<p>Hello,</p>
<p>Currently I'm building a new homelab based on omnios.</p>
<p></p>
<p>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:</p>
<p><br>
</p>
<p>Error: HVM guest support is unavailable: is VT/AMD-V supported by your CPU and enabled in your BIOS?<br>
</p>
<p><br>
</p>
<p>Inside the kvm enabled zone, kvm is enabled:</p>
<p>root@ovm1:/root# ls -l /dev/kvm</p>
<p>crw------- 1 root sys 125, 0 Aug 10 11:26 /dev/kvm</p>
<p>root@ovm1:/root#</p>
<p>root@ovm1:/root# modinfo |grep -i kvm</p>
<p>224 fffffffff8408000 3a030 125 1 kvm (kvm driver v0.1)</p>
<p>root@ovm1:/root#</p>
<p><br>
</p>
<p>For sure I checked the processor itself from the global zone if it is supported:</p>
<p>root@sea:/root# isainfo -v</p>
<p>64-bit amd64 applications</p>
<p> vmx pclmulqdq aes sse4.2 sse4.1 ssse3 popcnt tscp cx16 sse3 sse2</p>
<p> sse fxsr mmx cmov amd_sysc cx8 tsc fpu</p>
<p>32-bit i386 applications</p>
<p> vmx pclmulqdq aes sse4.2 sse4.1 ssse3 popcnt tscp ahf cx16 sse3</p>
<p> sse2 sse fxsr mmx cmov sep cx8 tsc fpu</p>
<p>root@sea:/root#</p>
<p><br>
</p>
<p>and to me it looks I have the required flags available. </p>
<p>inside the lvm-guest the flags are indeed not given to the guest:</p>
<p><br>
</p>
<p>[root@ovm2 ~]# uname -s -r -i -p</p>
<p>Linux 2.6.39-400.279.1.el5uek x86_64 x86_64</p>
<p>[root@ovm2 ~]# cat /etc/oracle-release</p>
<p>Oracle VM Server release 5.7</p>
<p>[root@ovm2 ~]# grep flags /proc/cpuinfo</p>
<p>flags<span class="Apple-tab-span" style="white-space:pre"> </span>: 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</p>
<p>[root@ovm2 ~]#</p>
<p><br>
</p>
<p>it does not matter if I start the kvm guest using</p>
<p>-cpu host \<br>
</p>
<p>or using </p>
<p><span style="font-size: 12pt;">-cpu qemu64,+vmx,+aes,+sse4.2,+sse4.1,+ssse3 \ # --> this one is faster</span></p>
<p><span style="font-size: 12pt;"><br>
</span></p>
<p><span style="font-size: 12pt;"><br>
</span></p>
<p><font size="3">So it </font>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?</p>
<p><br>
</p>
<p>How can I fix this?</p>
<p><br>
</p>
<p>Thanks and best regards,</p>
<p>Pieter</p>
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