[gentoo-user] Re: qemu-kvm replacement

[walt <w41ter@gmail.com>]

On 06/10/2014 02:31 PM, Heiko Zinke wrote:
> Hi,
> 
> with my recent qemu update from 1.6 to 2.0 I got the following error:
> 
> * The kvm/qemu-kvm wrappers no longer exist, but your libvirt
>  * instances are still pointing to it.  Please update your
>  * configs in /etc/libvirt/qemu/ to use the -enable-kvm flag
>  * and the right system binary (e.g. qemu-system-x86_64).
>  * ERROR: app-emulation/qemu-2.0.0::gentoo failed (pretend phase):
>  *   update your virt configs to not use qemu-kvm
>  * 
>  * Call stack:
>  *           ebuild.sh, line  93:  Called pkg_pretend
>  *   qemu-2.0.0.ebuild, line 225:  Called die
>  * The specific snippet of code:
>  *              die "update your virt configs to not use qemu-kvm"
> 
> I found this bug which explains the why but sadly not the how.
> https://bugs.gentoo.org/show_bug.cgi?id=506566
> 
> I need to get rid of the reference to the /usr/bin/qemu-kvm shell script which 
> is basically only a wrapper for "exec /usr/bin/qemu-system-x86_64 -machine 
> accel=kvm "$@""
> 
> So if I "sudo virsh edit vmname" and substitute "/usr/bin/qemu-kvm" by 
> "/usr/bin/qemu-system-x86_64 -machine accel=kvm -enable-kvm" I only get this 
> error :(
> "error: Cannot check QEMU binary /usr/bin/qemu-system-x86_64 -machine 
> accel=kvm -enable-kvm: No such file or directory"
> 
> How is this supposed to work? Do I need to create a custom shell skript or 

> just use /usr/bin/qemu-system-x86_64 w/o the args an hope it  magically uses 
> kvm acceleration?

I believe "accel=kvm" is obsolete now.  "-enable-kvm" is the magic word
lately.  Try "qemu-system-x86_64 -help" for more info than you want :)