[Lennart Sorensen]
> I suspect if you run kvm with the -cpu option you can specify what
> you desire. I believe the default is to simply match whatever the
> host has, so if the host has a 64bit cpu, then the guest will too.
Well, the host is using a 32-bit kernel too, so 64-bit kvm with
hardware virtualization is not really an option.
meta:/# kvm -cpu ?
x86 qemu64
x86 phenom
x86 core2duo
x86 qemu32
x86 coreduo
x86 486
x86 pentium
x86 pentium2
x86 pentium3
x86 athlon
x86 n270
meta:/#
This is the command line for the kvm instance in question:
/usr/bin/kvm -S -M pc -m 512 -smp 1 -name pxetest
-uuid 9b733365-92e6-6b1f-7ad6-8a4f0caf6bfc
-monitor unix:/var/lib/libvirt/qemu/pxetest.monitor,server,nowait -boot c
-drive file=/var/lib/libvirt/images/pxetest.img,if=ide,bus=0,unit=0,boot=on
-drive
file=/var/lib/libvirt/debian-edu-amd64-i386-DVD-squeeze-test.iso,if=ide,media=cdrom,bus=1,unit=0
-net nic,macaddr=54:52:00:68:97:39,vlan=0,name=net0
-net tap,fd=48,vlan=0,name=hostnet0
-net nic,macaddr=52:54:00:04:a3:34,vlan=1,name=net1
-net tap,fd=49,vlan=1,name=hostnet1 -serial pty -parallel none
-usb -usbdevice tablet -vnc 127.0.0.1:6 -k en-us -vga cirrus
-soundhw es1370
Anyone know how to detect 32-bits kvm virtual machines on a 32-bits
host on a CPU capable of running 64-bit kernels? Can we just look at
the vendor_id, model name, cpu family and model settings and disable
amd64 as an option if these are listed:
vendor_id : GenuineIntel
cpu family : 6
model : 2
model name : QEMU Virtual CPU version 0.10.0
Happy hacking,
--
Petter Reinholdtsen
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