Bug 806754
Summary: | [RFE] Guest cpu topology should same with host CPU definition from capabilities XML when set cpu mode='host-model' | ||||||
---|---|---|---|---|---|---|---|
Product: | Red Hat Enterprise Linux 6 | Reporter: | zhe peng <zpeng> | ||||
Component: | libvirt | Assignee: | Jiri Denemark <jdenemar> | ||||
Status: | CLOSED NOTABUG | QA Contact: | Virtualization Bugs <virt-bugs> | ||||
Severity: | medium | Docs Contact: | |||||
Priority: | medium | ||||||
Version: | 6.3 | CC: | acathrow, dallan, dyuan, ehabkost, mzhan, rwu, yupzhang | ||||
Target Milestone: | rc | Keywords: | FutureFeature | ||||
Target Release: | --- | ||||||
Hardware: | Unspecified | ||||||
OS: | Unspecified | ||||||
Whiteboard: | |||||||
Fixed In Version: | Doc Type: | Enhancement | |||||
Doc Text: | Story Points: | --- | |||||
Clone Of: | Environment: | ||||||
Last Closed: | 2012-07-20 14:55:22 UTC | Type: | --- | ||||
Regression: | --- | Mount Type: | --- | ||||
Documentation: | --- | CRM: | |||||
Verified Versions: | Category: | --- | |||||
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
Cloudforms Team: | --- | Target Upstream Version: | |||||
Embargoed: | |||||||
Attachments: |
|
IMO this is not a bug; just because a user wants the cpu model does not mean that they want, for example, to assign all physical cores to the guest. |
Created attachment 572679 [details] host capabilities xml file Description of problem: guest cpu topology should same with host CPU definition from capabilities XML when set cpu mode='host-model' Version-Release number of selected component (if applicable): libvirt-0.9.10-6.el6 qemu-kvm-0.12.1-2.241.el6 How reproducible: 100% Steps to Reproduce: 1. edit guest xml and start guest #virsh edit $guest_name ..... <cpu mode='host-model'/> ..... #virsh start $guest_name 2. check host cpu definition from capabilities XML #virsh capabilities ...... <cpu> <arch>x86_64</arch> <model>Penryn</model> <vendor>Intel</vendor> <topology sockets='1' cores='4' threads='1'/> <feature name='osxsave'/> <feature name='xsave'/> ...... #virsh nodeinfo CPU model: x86_64 CPU(s): 4 CPU frequency: 2000 MHz CPU socket(s): 1 Core(s) per socket: 4 Thread(s) per core: 1 NUMA cell(s): 1 Memory size: 7575492 kB 3. #ps -ef | grep $guest_name qemu 3847 1 17 01:57 ? 00:01:31 /usr/libexec/qemu-kvm -S -M rhel6.3.0 -cpu Penryn,+osxsave,+xsave,+pdcm,+xtpr,+tm2,+est,+vmx,+ds_cpl,+monitor,+dtes64,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme -enable-kvm -m 1024 -smp 4,sockets=4,cores=1,threads=1 -name rhel6.3 -uuid 0cf5ebf9-2397-5dea-97b2-ea78da13b70c -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/rhel6.3.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive file=/var/lib/libvirt/images/rhel6.3.img,if=none,id=drive-ide0-0-0,format=qcow2,cache=none -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -netdev tap,fd=28,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:8c:1a:53,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -vnc 0.0.0.0:1 -vga cirrus -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 the cpu topology change to sockets=4,cores=1,threads=1 4. login guest check cpuinfo #virsh nodeinfo CPU model: x86_64 CPU(s): 4 CPU frequency: 2826 MHz CPU socket(s): 4 Core(s) per socket: 1 Thread(s) per core: 1 NUMA cell(s): 1 Memory size: 1020412 kB Actual results: the topology of guest cpu not same with host cpu definition from capabilities xml Expected results: guest cpu topology same with host cpu definition from capabilities xml when set cpu mode='host-model' Additional info: