[libvirt PATCH 0/2] Always validate XML for (hypervisor-)cpu-compare

[Daniel P. Berrangé]

On Thu, Apr 15, 2021 at 10:40:52AM +0200, Tim Wiederhake wrote:
> XML schema validation for `virsh (hypervisor-)cpu-compare` has to be
> enabled explicitly by passing the `--validate` flag. Having invalid
> XML domain / cpu specification that appear to work can lead to hard
> to find problems down the line, when e.g. migration of VMs does not
> work as expected.
> 
> This series fixes a bug in the validation code and logs the schema
> validation error to libvirtd's log file. User facing behaviour stays
> unchanged.

I'm sceptical this is going to be beneficial. RNG validation error
messages can be obscure at the best of times. I almost always need
to look at the original input XML to understand what the RNG error
really means. IOW just having the RNG error logged is unlikely to
be enough to help people see what went wrong, assuming anyone even
pays attention to the log.


Regards,
Daniel
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