[libvirt] [PATCH] docs: correct version requirements for <kvm><hidden='on'/></kvm>

John Ferlan jferlan at redhat.com
Thu Sep 29 18:36:59 UTC 2016



On 09/29/2016 01:50 PM, Laine Stump wrote:
> When support was added for the kvm hidden='on' attribute in commit
> d07116, the version requirement was listed as "2.1.0 (QEMU
> only)". However, this was added when libvirt was at version 1.2.8 - it
> is *QEMU* that must be at version 2.1.0 or later.
> 
> This went unnoticed for a very long time (over 2 years). Then a week
> or two ago a new Windows convert in the #virt channel on OFTC was told
> he needed to use this feature (to prevent nvidia drivers in a guest
> from refusing to work due to being run in a virtual machine). There
> was some problem with it being recognized and "someone" (it may have
> been me, or may have been someone else, I don't remember) pointed out
> that the documentation at
> 
>   http://www.libvirt.org/formatdomain.html
> 
> says that it requires libvirt 2.1.0. The next several days were filled
> with agony as a new convert to Linux first tried to upgrade a Linux
> Mint host running their "LTS" version to something newer, then tried
> to install a libvirt build built for Ubuntu onto this, and later back
> to the old LTS Linux Mint. After this he tried building his own
> libvirt from source (with all the expected problems), and finally
> switched to Fedora. In the end it was hours and hours of everybody's
> lives that they will never get back. To now learn that he didn't need
> to do this (his original libvirt version was 1.3.3, so whatever his
> problem was, it was elsewhere) makes the pain all that much worse.
> 
> To prevent this from happening again, this simple patch changes the
> version requirement for the kvm hidden attribute from "2.1.0 (QEMU
> only)" to "1.2.8 (QEMU 2.1.0)".
> ---
>  docs/formatdomain.html.in | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

ACK (safe)


John




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