[Qemu-discuss] windows guest became unactivated when qemu upgrade

[Zhangzijian]

Hi all
There is an issue about device difference between qemu versions.

A win2k8 guest running under qemu-1.5.0. After I upgraded qemu to qemu-2.1.2. 
The guest became unactivated. The guest is started with the same command line.
I noticed that CPU information defined in ‘builtin_x86_defs’ changed, so I 
modify source-code(qemu-2.1.2) and recompiled it. But I got the same result.

I just run guest with different qemu-system-x86_64, so the BIOS 
file(/usr/share/qemu/bios.bin) is the same.
So, is there any difference between qemu-1.5.0 and qemu-2.1.2, which would 
cause win2k8 became unactivated?

The guest command line:
qemu-2.1.2 -name windows2008-ent-4c -S -machine 
pc-i440fx-1.5,accel=kvm,usb=off,system=windows -cpu 
qemu64,hv_relaxed,hv_spinlocks=0x2000 -m 8192 -smp 
4,maxcpus=160,sockets=40,cores=4,threads=1 -uuid 
56c9ecc2-4c1d-4200-a02d-3217fb669492 -no-user-config -nodefaults -chardev 
stdio,id=charmonitor -mon chardev=charmonitor,id=monitor -rtc 
base=localtime,clock=vm,driftfix=slew -no-hpet -no-shutdown -device 
piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device 
usb-ehci,id=ehci,bus=pci.0,addr=0x4 -device 
virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive 
file=/vms/images/windows2008-ent-4c-top,if=none,id=drive-virtio-disk0,format=qcow2,cache=directsync
 -device 
virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
 -netdev tap,id=hostnet0 -device 
rtl8139,netdev=hostnet0,id=net0,mac=0c:da:41:1d:eb:2d,bus=pci.0,addr=0x3 
-chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 
-chardev 
socket,id=charchannel0,path=/var/lib/libvirt/qemu/windows2008-ent-4c.agent,server,nowait
 -device 
virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0
 -device usb-tablet,id=input0,bus=usb.0 -vnc 0.0.0.0:15 -device 
VGA,id=video0,bus=pci.0,addr=0x2 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6

Sincerely, Richard Zhang
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