Loko Scheme and nested virtualization

[ceving]

Is it possible to run Loko in Qemu running in VirtualBox?

$ cat /sys/module/kvm_intel/parameters/nested
Y

I tried it, but it throws an error:

$ qemu-system-x86_64 -kernel ps2demo -serial stdio -m 1G -enable-kvm
qemu-system-x86_64: multiboot knows VBE. we don't
KVM: entry failed, hardware error 0x80000021

If you're running a guest on an Intel machine without unrestricted mode
support, the failure can be most likely due to the guest entering an invalid
state for Intel VT. For example, the guest maybe running in big real mode
which is not supported on less recent Intel processors.

EAX=00000010 EBX=00009500 ECX=002000d1 EDX=000f0511
ESI=00000000 EDI=00002000 EBP=00000000 ESP=00006f08
EIP=002000fd EFL=00010046 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA]
CS =0018 00000000 ffffffff 00c09900 DPL=0 CS32 [--A]
SS =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA]
FS =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA]
GS =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA]
LDT=0000 00000000 0000ffff 00008200 DPL=0 LDT
TR =0000 00000000 0000ffff 00008b00 DPL=0 TSS32-busy
GDT= 002f00d8 0000001f
IDT= 00000000 000003ff
CR0=00000011 CR2=00000000 CR3=00000000 CR4=00000000
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000000000
Code=00 20 00 18 00 b8 10 00 00 00 8e d8 8e c0 8e e0 8e e8 8e d0 <0f> 01 1d 00 70 41 00 b8 20 02 00 00 0f 22 e0 b9 77 02 00 00 b8 06 04 07 00 ba 06 01 05 00