[libvirt] [PATCH 1/2] qemu: Extract MDEV VFIO PCI validation code into a separate helper
Erik Skultety
eskultet at redhat.com
Tue Nov 13 08:27:40 UTC 2018
On Mon, Nov 12, 2018 at 04:28:09PM +0100, Boris Fiuczynski wrote:
> On 11/12/18 1:14 PM, Erik Skultety wrote:
> > Since we'll need to validate other models apart from VFIO PCI too,
> > having a helper for each model should keep the code base cleaner.
> >
> > Signed-off-by: Erik Skultety <eskultet at redhat.com>
> > ---
> > src/qemu/qemu_domain.c | 35 +++++++++++++++++++++++++++++------
> > 1 file changed, 29 insertions(+), 6 deletions(-)
> >
> > diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
> > index e25afdad6b..17d207513d 100644
> > --- a/src/qemu/qemu_domain.c
> > +++ b/src/qemu/qemu_domain.c
> > @@ -4564,11 +4564,11 @@ qemuDomainDeviceDefValidateNetwork(const virDomainNetDef *net)
> > static int
> > -qemuDomainMdevDefValidate(const virDomainHostdevSubsysMediatedDev *mdevsrc,
> > - const virDomainDef *def,
> > - virQEMUCapsPtr qemuCaps)
> > +qemuDomainMdevDefVFIOPCIValidate(const virDomainHostdevSubsysMediatedDev *dev,
> > + const virDomainDef *def,
> > + virQEMUCapsPtr qemuCaps)
> > {
> > - if (mdevsrc->display == VIR_TRISTATE_SWITCH_ABSENT)
> > + if (dev->display == VIR_TRISTATE_SWITCH_ABSENT)
> > return 0;
> > if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VFIO_PCI_DISPLAY)) {
> > @@ -4578,7 +4578,7 @@ qemuDomainMdevDefValidate(const virDomainHostdevSubsysMediatedDev *mdevsrc,
> > return -1;
> > }
> > - if (mdevsrc->model != VIR_MDEV_MODEL_TYPE_VFIO_PCI) {
> > + if (dev->model != VIR_MDEV_MODEL_TYPE_VFIO_PCI) {
> > virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
> > _("<hostdev> attribute 'display' is only supported"
> > " with model='vfio-pci'"));
> > @@ -4586,7 +4586,7 @@ qemuDomainMdevDefValidate(const virDomainHostdevSubsysMediatedDev *mdevsrc,
> > return -1;
> > }
> > - if (mdevsrc->display == VIR_TRISTATE_SWITCH_ON) {
> > + if (dev->display == VIR_TRISTATE_SWITCH_ON) {
> > if (def->ngraphics == 0) {
> > virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
> > _("graphics device is needed for attribute value "
> > @@ -4599,6 +4599,29 @@ qemuDomainMdevDefValidate(const virDomainHostdevSubsysMediatedDev *mdevsrc,
> > }
> > +static int
> > +qemuDomainMdevDefValidate(const virDomainHostdevSubsysMediatedDev *mdevsrc,
> > + const virDomainDef *def,
> > + virQEMUCapsPtr qemuCaps)
> > +{
> > +
> Syntax-check does not like the above blank line... :-)
Wow, good catch, quite interesting though, because I always build my patches on
a bunch of different distros (a reasonable subset of those in our CI) and none
of them reported this. What's your setup if may ask?
>
> > + switch ((virMediatedDeviceModelType) mdevsrc->model) {
> > + case VIR_MDEV_MODEL_TYPE_VFIO_PCI:
> > + return qemuDomainMdevDefVFIOPCIValidate(mdevsrc, def, qemuCaps);
> > + case VIR_MDEV_MODEL_TYPE_VFIO_AP:
> > + break;
> > + case VIR_MDEV_MODEL_TYPE_VFIO_CCW:
> > + break;
> > + case VIR_MDEV_MODEL_TYPE_LAST:
> > + virReportEnumRangeError(virMediatedDeviceModelType,
> > + mdevsrc->model);
> > + return -1;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +
> > static int
> > qemuDomainDeviceDefValidateHostdev(const virDomainHostdevDef *hostdev,
> > const virDomainDef *def,
> >
> Besides Marc question regard the default switch case
> Reviewed-by: Boris Fiuczynski <fiuczy at linux.ibm.com>
Thanks,
Erik
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