[libvirt] [PATCH] qemu: Allow enabling/disabling features with host-passthrough

[Daniel P. Berrange]

On Mon, Jan 12, 2015 at 02:21:35PM +0100, Martin Kletzander wrote:
> QEMU supports feature specification with -cpu host and we just skip
> using that.  Since QEMU developers themselves would like to use this
> feature, this patch modifies the code to work.

This is actually useful in other ways too - eg there are some CPU flags
which won't exist in your host CPU, but which are none the less useful
to be able to enable/disable in passthrough mode.

> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1178850
> 
> Signed-off-by: Martin Kletzander <mkletzan at redhat.com>
> ---
>  docs/formatdomain.html.in                          |  5 +-
>  docs/schemas/domaincommon.rng                      | 67 ++++++++--------------
>  src/conf/cpu_conf.c                                | 53 +++++++++--------
>  src/qemu/qemu_command.c                            | 21 ++++---
>  ...emuxml2argv-cpu-host-passthrough-features.args} |  2 +-
>  ...qemuxml2argv-cpu-host-passthrough-features.xml} | 22 +------
>  tests/qemuxml2argvtest.c                           |  2 +-
>  tests/qemuxml2xmltest.c                            |  1 +
>  8 files changed, 71 insertions(+), 102 deletions(-)
>  rename tests/qemuxml2argvdata/{qemuxml2argv-cpu-host-passthrough-features-invalid.args => qemuxml2argv-cpu-host-passthrough-features.args} (91%)
>  rename tests/qemuxml2argvdata/{qemuxml2argv-cpu-host-passthrough-features-invalid.xml => qemuxml2argv-cpu-host-passthrough-features.xml} (57%)

ACK

Regards,
Daniel
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