Hi, On Fri, 2016-09-23 at 15:05 +0200, Leonard den Ottolander wrote: > So the question is: How do I enable the svm flag in the guest? The qemu-kvm option "-enable-nesting" that I dug up in the source looks promising. No mention in the man page on either C6 or C7 but it is mentioned here: https://www.redhat.com/archives/libvir-list/2012-October/msg01138.html How do I pass the "-enable-nesting" option to qemu-kvm using either virt-manager.py, virsh or the domain xml? Hoping to avoid having to patch the source a such: --- qemu-kvm-0.12.1.2.000/target-i386/helper.c 2009-12-29 21:46:34.000000000 +0100 +++ qemu-kvm-0.12.1.2/target-i386/helper.c 2016-09-25 16:35:02.984334623 +0200 @@ -1811,8 +1811,10 @@ void cpu_x86_cpuid(CPUX86State *env, uin /* disable CPU features that KVM cannot support */ /* svm */ +/* if (!kvm_nested) *ecx &= ~CPUID_EXT3_SVM; +*/ /* 3dnow */ *edx &= ~0xc0000000; } else { Regards, Leonard. -- mount -t life -o ro /dev/dna /genetic/research