On Thu, Nov 26, 2009 at 12:55 PM, Alexander Graf <[email protected]> wrote: > > On 26.11.2009, at 17:06, Adrian Terranova wrote: > >> Hello, >> >> Looking for a pointer to a working setup of kvm nesting kvm with svm >> extensions working thruout. >> >> I'm working with proxmox - and trying to get a proxmox in a proxmox >> working. KVM is called as follows from the proxmox host. >> >> 31515 ? Sl 27:15 /usr/bin/kvm -monitor >> unix:/var/run/qemu-server/109.mon,server,nowait -vnc >> unix:/var/run/qemu-server/109.vnc,password -pidfile >> /var/run/qemu-server/109.pid -daemonize -usbdevice tablet -name >> proxmoxkvmtest -smp sockets=1,cores=1 -vga cirrus -tdf -k en-us -drive >> file=/mnt/pve/nfsimages/images/109/vm-109-disk-1.raw,if=ide,index=0,boot=on >> -drive >> file=/var/lib/vz/template/iso/proxmox-ve_1.4-4390.iso,if=ide,index=2,media=cdrom >> -m 512 -net >> tap,vlan=0,ifname=vmtab109i0,script=/var/lib/qemu-server/bridge-vlan >> -net nic,vlan=0,model=e1000,macaddr=A2:40:B2:EF:69:B8 -id 109 >> -cpuunits 1000 -enable-nesting >> >> The key thing (it appears - is the enable nesting) - the other piece >> that it looks like it needs is a kernel argument to properly enable >> the kvm extensions cause there is no >> >> /dev/kvm >> >> but there is an error in dmesg from the dmesg output / boot console of >> the virtualized kvm instance of the following >> >> [snip from dmesg of first boot] >> ... >> tun: (C) 1999-2004 Max Krasnyansky <[email protected]> >> general protection fault: 0000 [1] PREEMPT SMP >> CPU: 0 >> Modules linked in: kvm_amd kvm vzethdev vznetdev simfs vzrst vzcpt tun >> vzdquota >> vzmon vzdev xt_tcpudp xt_length ipt_ttl xt_tcpmss xt_TCPMSS iptable_mangle >> iptab >> le_filter xt_multiport xt_limit ipt_tos ipt_REJECT ip_tables x_tables ipv6 >> ib_is >> er rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi >> scsi_tran >> sport_iscsi bridge virtio_balloon parport_pc parport floppy psmouse pcspkr >> serio >> _raw e1000 joydev evdev thermal button processor sg scsi_wait_scan >> virtio_blk dm >> _mod usbhid hid usb_storage libusual sd_mod sr_mod ide_disk ide_generic >> ide_cd c >> drom ide_core ata_piix pata_acpi ata_generic libata scsi_mod uhci_hcd >> usbcore i2 >> c_piix4 i2c_core virtio_pci virtio_ring virtio isofs msdos fat >> Pid: 2914, comm: modprobe Not tainted 2.6.24-8-pve #1 ovz005 >> RIP: 0010:[<ffffffff884532b0>] [<ffffffff884532b0>] >> :kvm_amd:svm_hardware_enabl >> e+0x80/0xe0 >> RSP: 0018:ffff81001dcb5de8 EFLAGS: 00010006 >> RAX: 0000000000001d01 RBX: 0000000000000010 RCX: 00000000c0000080 >> RDX: 0000000000000000 RSI: ffffffff88458b26 RDI: 0000000000000000 >> RBP: ffff81001d49b240 R08: 0000000000000001 R09: 0000000000000000 >> R10: 0000000000000000 R11: ffffffff88453230 R12: ffffffff88420050 >> R13: ffffffff8845c100 R14: ffffffff8845c100 R15: ffffc200001f8618 >> FS: 00007fe49ff576e0(0000) GS:ffffffff80628000(0000) knlGS:0000000000000000 >> CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b >> ... >> >> More can be found here if you feel really interested >> >> http://www.proxmox.com/forum/showthread.php?t=2675 >> >> trying to figure out what I missed. > > You need to modprobe kvm-amd with the "nested=1" parameter on the host. > > Alex I wasn't sure from reading prior posts if maybe I need a specific CPU argument.
This is the host CPU /proc/cpuinfo vhost01:~# cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 5000+ stepping : 2 cpu MHz : 2599.994 cache size : 512 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 1 wp : yes 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 rdtscp lm 3dnowext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch bogomips : 5205.44 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp tm stc 100mhzsteps processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 5000+ stepping : 2 cpu MHz : 2599.994 cache size : 512 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 1 wp : yes 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 rdtscp lm 3dnowext 3dnow rep_good pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch bogomips : 5199.97 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp tm stc 100mhzsteps this is the vm processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 2 model name : QEMU Virtual CPU version 0.11.0 stepping : 3 cpu MHz : 2599.982 cache size : 512 KB fpu : yes fpu_exception : yes cpuid level : 4 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx lm up pni svm bogomips : 5316.64 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
