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Description of problem: Disable cpu flag via "-cpu qemu64,-flag(kvmclock)", and there is "CPU feature kvmclock not found" message display in the qemu monitor. Version-Release number of selected component (if applicable): host info: # uname -r && rpm -q kvm 2.6.18-302.el5 kvm-83-246.el5 How reproducible: 100% Steps to Reproduce: 1.boot the guest with -cpu qemu64,-flag (kvmclock）. eg: # /usr/libexec/qemu-kvm -M rhel5.6.0 -m 4G -smp 2,cores=2,threads=1,sockets=1 -cpu qemu64,-kvmclock -name rhel5.8 -usbdevice tablet -rtc-td-hack -uuid de2fd1ba-4b8b-40d4-84d3-5488366f871e -boot c -drive file=/home/rhel-5.8-64.qcow2,if=ide,boot=on,bus=0,unit=0,format=qcow2,cache=none,boot=on,werror=stop -net nic,macaddr=84:52:5f:1d:33:47,vlan=0,model=virtio -net tap,vlan=0,script=/etc/qemu-ifup -balloon none -monitor stdio -spice host=0,ic=on,port=5915,disable-ticketing -qxl 1 2.take "# dmesg | grep -i time.c" in the guest. Actual results: 1.There is "CPU feature kvmclock not found" message display in the qemu monitor. 2.After the step 2, the result as following: # dmesg | grep -i time.c time.c: Using 1.193182 MHz WALL KVM GTOD KVM timer. time.c: Detected 2826.246 MHz processor. Real Time Clock Driver v1.12ac Expected results: RHEL5.8 should support the kvmclock flag in qemu64 cpu model, and take "# dmesg | grep -i time.c" should not display any message. Additional info:
Mark this bug as qa+ first and proposed to rhel5.9,however,still have a question,do we support disable kvmclock via kvm CML -kvmclock? Additional infos Boot guest with -cpu qemu64,-kvmclock # /usr/libexec/qemu-kvm -M rhel5.6.0 -m 4G -smp 2,cores=2,threads=1,sockets=1 -cpu qemu64,-kvmclock ...... CPU feature kvmclock not found CPU feature kvmclock not found
Too low priority, closed as won't fix