Re: [PATCH 4/8] conf, qemu: Add newer shmem models

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On 09/27/2016 08:24 AM, Martin Kletzander wrote:
> The old ivshmem is deprecated in QEMU, so let's use the better
> ivshmem-{plain,doorbell} variants instead.
> 

Perhaps explained a bit differently (my understanding ;-))... Older
versions of qemu had one type (ivshmem - the current default), but newer
versions of qemu will force selection of a specific type using "plain"
or "doorbell" as the model type depending on which "features" are
desired (??) [fill in the details]

I guess the nagging question is - what happens if someone "chooses" to
have <model type='ivshmem'> in this newer world?  Does the deprecation
from qemu kick in and the domain cannot start?  We should note that
somehow/somewhere.

> Signed-off-by: Martin Kletzander <mkletzan@xxxxxxxxxx>
> ---
>  docs/schemas/domaincommon.rng | 2 ++
>  src/conf/domain_conf.c        | 4 +++-
>  src/conf/domain_conf.h        | 2 ++
>  src/qemu/qemu_command.c       | 7 +++++++
>  4 files changed, 14 insertions(+), 1 deletion(-)
> 

docs/formatdomain.html.in needs to change here too

In particular what constitutes each setting - that is are there XML
elements that would or wouldn't make sense for the type of shmem device
(I'm thinking of Daniel's table here).

BTW: When using your "Since" tags, it'll need to be clear which version
of qemu no longer supports "type='ivshmem'" and forces someone to choose
-plain or -doorbell.

ACK w/ the doc change


John


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