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Description of problem:
------------------------
Expose vmx pbe and svm to guest with -cpu +vmx,pbe, these flags cannot be seen in the guest.
Version-Release number of selected component (if applicable):
--------------------------------------------------------------
host:
2.6.32-122.el6.x86_64
qemu-kvm-0.12.1.2-2.151.el6.x86_64
guest:
2.6.32-122.el6.x86_64
How reproducible:
------------------
100%
Steps to Reproduce:
--------------------
1. Boot guest with:
#/usr/libexec/qemu-kvm -M rhel6.1.0 -enable-kvm -cpu Westmere,+pbe,+vmx -smp cores=2,threads=2,sockets=2 -m 4G -name RHEL6.0-64-virtio-qcow2 -uuid `uuidgen` -drive file=./RHEL-Server-6.0-64-virtio.qcow2,if=none,format=qcow2,rerror=stop,werror=stop,id=virtio-disk0 -device virtio-blk-pci,drive=virtio-disk0 -netdev tap,script=/etc/qemu-ifup,id=net0,vhost=on -device virtio-net-pci,netdev=net0 -vnc :10 -monitor stdio -usb -device usb-tablet,id=input0 -rtc base=utc
2. In the guest:
#cat /proc/cpuinfo
3. In the guest, save x86info output.
#x86info -a -f
4. Boot guest with -cpu Westmere,-pbe,-vmx, do step 2.
5. Compare two x86info output.
Actual results:
----------------
1. After step 2, there is no vmx and pbe.
2. After step 5, there is no difference.
Expected results:
------------------
There should be vmx and pbe exposed in the guest.