Re: [PATCHv3 1/3] domain_conf: Add USB controler model "none"

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On Mon, Jul 23, 2012 at 14:19:13 +0200, Peter Krempa wrote:
> Libvirt adds a USB controller to the guest even if the user does not
> specify any in the XML. This is due to back-compat reasons.
> 
> To allow disabling USB for a guest this patch adds a new USB controller
> type "none" that disables USB support for the guest.
> ---
> Diff to v2:
> - added docs to formatdomain.hmtl
> - changed error reporting functions to global ones
> ---
>  docs/formatdomain.html.in     |    6 +++-
>  docs/schemas/domaincommon.rng |    1 +
>  src/conf/domain_conf.c        |   55 ++++++++++++++++++++++++++++++++++++++++-
>  src/conf/domain_conf.h        |    1 +
>  src/qemu/qemu_command.c       |    3 +-
>  5 files changed, 62 insertions(+), 4 deletions(-)
> 
...
> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index c53722a..cf3b1c4 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
...
> @@ -9043,6 +9074,14 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps,
>          if (!hostdev)
>              goto error;
> 
> +        if (hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB &&
> +            usb_none) {
> +            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
> +                           _("Can't add USB device passthrough: "

I think "Can't add host USB device" would better fit the name of the element.

> +                             "USB is disabled in this host"));
> +            goto error;
> +        }
> +
>          def->hostdevs[def->nhostdevs++] = hostdev;
>      }
>      VIR_FREE(nodes);
...
> @@ -9128,6 +9174,13 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps,
>          if (!redirdev)
>              goto error;
> 
> +        if (redirdev->bus == VIR_DOMAIN_REDIRDEV_BUS_USB && usb_none) {
> +             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
> +                            _("Can't add USB redir device: "

"Can't add redirected USB device" seems better to me.

> +                              "USB is disabled for this domain"));
> +            goto error;
> +        }
> +
>          def->redirdevs[def->nredirdevs++] = redirdev;
>      }
>      VIR_FREE(nodes);
...

ACK

Jirka

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