QEMU does not support Westmere (Intel Xeon) CPU model

Setting the CPU model to Westmere (Intel Xeon server CPU) is not possible.

libvirt uses 'core2duo' as fallback:
https://bugzilla.redhat.com/show_bug.cgi?id=708927


$ qemu -cpu ?
x86           [n270]
x86         [athlon]
x86       [pentium3]
x86       [pentium2]
x86        [pentium]
x86            [486]
x86        [coreduo]
x86          [kvm32]
x86         [qemu32]
x86          [kvm64]
x86       [core2duo]
x86         [phenom]
x86         [qemu64]

$ qemu --version
QEMU emulator version 1.0 (Debian 1.0+dfsg-3), Copyright (c) 2003-2008 Fabrice Bellard