Westmere seems to be available in the latest version of QEMU:
$ qemu-system-x86_64 -cpu ? | grep Westmere
x86 Westmere Westmere E56xx/L56xx/X56xx (Nehalem-C)
==> Setting status to "Fix released" now.
** Changed in: qemu
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/928676
Title:
QEMU does not support Westmere (Intel Xeon) CPU model
Status in QEMU:
Fix Released
Bug description:
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
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