Re: [libvirt-users] LibVirt query CPU Model support and restore operation
On Fri, Jan 27, 2017 at 13:48:44 +0530, akhilesh rawat wrote:
hello ,
thanks for comments .
I tried now with force options for CPU flag which were not supported . Now
the command with non fully supported CPU model gets executed , But i am
surprised to see that still Guest cpu model is not changed and still same
as host cpu model(SAndy Bridge)
Why don't i see the model as HAswell now , could you please comment.
Command used :
virt-install --virt-type kvm --name controller-0 --cpu
Haswell-noTSX,+fma,+movbe,+fsgsbase,+bmi1,+avx2,+smep,+bmi2,+erms,+invpcid
--ram=8120 --vcpus=4,sockets=1
Linux process for KVM :
7479 1 37 10:13 ? 01:13:21 /usr/libexec/qemu-kvm -name
controller-0 -S -machine pc-i440fx-rhel7.0.0,accel=kvm,usb=off *-cpu
SandyBridge,*+fma,+pcid,+movbe,+fsgsbase,+bmi1,+avx2,+smep,+bmi2,+erms,+invpcid
-m 8120 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1
Your qemu-kvm binary apparently doesn't know what Haswell-noTSX is and
thus libvirt has to translate it to something QEMU understands. You can
check supported CPU models with "/usr/libexec/qemu-kvm -cpu ?" (make
sure the question mark is not expanded by the shell).
Jirka