On Thu, Jan 25, 2018 at 09:03:38AM -0500, John Ferlan wrote:
On 01/17/2018 12:37 PM, Daniel P. Berrange wrote:
The OEM strings table in SMBIOS allows the vendor to pass arbitrary strings into the guest OS. This can be used as a way to pass data to an application like cloud-init, or potentially as an alternative to the kernel command line for OS installers where you can't modify the install ISO image to change the kernel args.
As an example, consider if cloud-init and anaconda supported OEM strings you could use something like
<oemStrings> <entry>cloud-init:ds=nocloud-net;s=http://10.10.0.1:8000/</entry> <entry>anaconda:method=http://dl.fedoraproject.org/pub/fedora/linux/releases/25/x86_64/os</entry> </oemStrings>
use of a application specific prefix as illustrated above is recommended, but not mandated, so that an app can reliably identify which of the many OEM strings are targetted at it.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com> --- docs/formatdomain.html.in | 13 ++++++++++++ docs/schemas/domaincommon.rng | 9 +++++++++ src/conf/domain_conf.c | 47 +++++++++++++++++++++++++++++++++++++++++++ src/util/virsysinfo.c | 33 ++++++++++++++++++++++++++++++ src/util/virsysinfo.h | 10 +++++++++ 5 files changed, 112 insertions(+)
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index d272cc1ba6..6af2d26209 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -411,6 +411,10 @@ <entry name='version'>0B98401 Pro</entry> <entry name='serial'>W1KS427111E</entry> </baseBoard> + <oemStrings> + <entry>myappname:some arbitrary data</entry> + <entry>otherappname:more arbitrary data</entry> + </oemStrings> </sysinfo> ...</pre>
@@ -498,6 +502,15 @@ validation and <code>date</code> format checking, all values are passed as strings to the hypervisor driver. </dd> + <dt><code>oemStrings</code></dt> + <dd> + This is block 11 of SMBIOS. This element should appear once and + can have multiple <code>entry</code> child elements, each providing + arbitrary string data. There are no restrictions on what data can + be provided in the entries, however, if the data is intended to be
s/, however/; however
Using a ; instead of , before "however" is rather wierd / unusual. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|