[Kimchi-devel] [PATCH V2] Add vfio driver as default for powerkvm systems.

[Aline Manera]

On 25/05/2015 13:08, Jose Ricardo Ziviani wrote:
>   - ppc hotplug does not work with kvm driver, it must be
>     vfio by default.
>
> Signed-off-by: Jose Ricardo Ziviani <joserz at linux.vnet.ibm.com>
> ---
>   src/kimchi/model/vmhostdevs.py | 6 ++++++
>   1 file changed, 6 insertions(+)
>
> diff --git a/src/kimchi/model/vmhostdevs.py b/src/kimchi/model/vmhostdevs.py
> index 964ec49..516d48f 100644
> --- a/src/kimchi/model/vmhostdevs.py
> +++ b/src/kimchi/model/vmhostdevs.py
> @@ -31,6 +31,7 @@ from kimchi.model.utils import get_vm_config_flag
>   from kimchi.model.vms import DOM_STATE_MAP, VMModel
>   from kimchi.rollbackcontext import RollbackContext
>   from kimchi.utils import kimchi_log, run_command
> +import platform
>
>
>   class VMHostDevsModel(object):
> @@ -164,6 +165,11 @@ class VMHostDevsModel(object):
>           driver = ('vfio' if DOM_STATE_MAP[dom.info()[0]] == "shutoff" and
>                     self.caps.kernel_vfio else 'kvm')
>
> +        # on powerkvm systems it must be vfio driver.
> +        distro, _, _ = platform.linux_distribution()
> +        if distro == 'IBM_PowerKVM':
> +            driver = 'vfio'

What happen if the kernel module for vfio is not loaded?

> +
>           # Attach all PCI devices in the same IOMMU group
>           dev_model = DeviceModel(conn=self.conn)
>           devs_model = DevicesModel(conn=self.conn)