[libvirt] [PATCH v2 1/3] conf: Extend <loader/> and introduce <nvram/>

Laszlo Ersek lersek at redhat.com
Fri Aug 15 14:13:27 UTC 2014


On 08/15/14 15:43, Michal Privoznik wrote:
> Up to now, users can configure BIOS via the <loader/> element. With
> the upcoming implementation of UEFI this is not enough as BIOS and
> UEFI are conceptually different. For instance, while BIOS is ROM, UEFI
> is programmable flash (although all writes to code section are
> denied). Therefore we need new attribute @type which will
> differentiate the two. Then, new attribute @readonly is introduced to
> reflect the fact that some images are RO.
> 
> Moreover, the OVMF (which is going to be used mostly), works in two
> modes:
> 1) Code and UEFI variable store is mixed in one file.
> 2) Code and UEFI variable store is separated in two files
> 
> The latter has advantage of updating the UEFI code without losing the
> configuration. However, in order to represent the latter case we need
> yet another XML element: <nvram/>. Currently, it has no additional
> attributes, it's just a bare element containing path to the variable
> store file.

I compared this version against v1 1/3, and my earlier notes on that v1
patch. It looks good to me.

I don't know enough about libvirt to give an R-b that's really worth its
face value, so I'll just ack.

Acked-by: Laszlo Ersek <lersek at redhat.com>

In addition, is there an easy way for me to test this patchset? I can
pluck the series from the list, apply it manually to my upstream clone,
build etc. My main question is if there's going to be some interference
with my "normal", RHEL-7, system-wide libvirtd installation.

If I follow <http://libvirt.org/deployment.html> and just install (as
non-root) to a private --prefix, will that just work? I vaguely remember
that I did get this working once before (when I was working on commits
ccca5dc3 and 51e184e9), but I don't remember any longer.

Thanks
Laszlo




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