Bug 832016

Summary: -no-kvm does not work in F17
Product: [Fedora] Fedora Reporter: Mike Cao <bcao>
Component: qemuAssignee: Fedora Virtualization Maintainers <virt-maint>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 17CC: amit.shah, berrange, cfergeau, dwmw2, ehabkost, itamar, knoel, michen, pbonzini, scottt.tw, virt-maint
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-06-14 10:52:47 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Mike Cao 2012-06-14 10:03:37 UTC 
Description of problem:


Version-Release number of selected component (if applicable):
F17

How reproducible:


Steps to Reproduce:
1.Start guest w/ -no-kvm
2.in qemu monitor (qemu)info kvm
3.
  
Actual results:
kvm is enabled 

Expected results:
kvm should disable

Additional info:

CLI:
sudo /usr/libexec/qemu-kvm -no-kvm -M pc-0.15 -enable-kvm -m 1024 -smp 1,sockets=1,cores=1,threads=1 -cpu host -name win8-32 -uuid 6d8c1833-edd4-5c19-5aaa-e6486d14790a -nodefconfig -nodefaults -monitor stdio -rtc base=localtime -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/libvirt/images/win8-32.img,if=none,id=drive-ide0-0-0,format=raw -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -drive file=/var/www/html/samba/Windows8-ReleasePreview-32bit-English.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:b6:c4:c8,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -vnc :1 -vga std -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 
char device redirected to /dev/pts/8
QEMU 1.0 monitor - type 'help' for more information
(qemu) info kvm 
kvm support: enabled
(qemu)
Comment 1 Daniel Berrangé 2012-06-14 10:52:47 UTC 
> CLI:
> sudo /usr/libexec/qemu-kvm -no-kvm -M pc-0.15 -enable-kvm -m 1024 -smp 

You have passed both '-no-kvm' *and* -enable-kvm. The latter is taking priority.

If your CLI was correct, it'd work as expected:

$ qemu-kvm -monitor stdio
QEMU 1.0 monitor - type 'help' for more information
(qemu) info kvm
kvm support: enabled

$ qemu-kvm -monitor stdio -no-kvm
QEMU 1.0 monitor - type 'help' for more information
(qemu) info kvm
kvm support: disabled