| Message ID | 4f063dddc17a2ac1f8c9088641df455957a3f78d.1645079934.git.jag.raman@oracle.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | vfio-user server in QEMU | expand |
On Thu, Feb 17, 2022 at 02:48:52AM -0500, Jagannathan Raman wrote: > Add vfio-user to x-remote machine. It is a boolean, which indicates if > the machine supports vfio-user protocol. The machine configures the bus > differently vfio-user and multiprocess protocols, so this property > informs it on how to configure the bus. > > This property should be short lived. Once vfio-user fully replaces > multiprocess, this property could be removed. > > Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com> > Signed-off-by: John G Johnson <john.g.johnson@oracle.com> > Signed-off-by: Jagannathan Raman <jag.raman@oracle.com> > --- > include/hw/remote/machine.h | 2 ++ > hw/remote/machine.c | 23 +++++++++++++++++++++++ > 2 files changed, 25 insertions(+) Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/include/hw/remote/machine.h b/include/hw/remote/machine.h index 2a2a33c4b2..8d0fa98d33 100644 --- a/include/hw/remote/machine.h +++ b/include/hw/remote/machine.h @@ -22,6 +22,8 @@ struct RemoteMachineState { RemotePCIHost *host; RemoteIOHubState iohub; + + bool vfio_user; }; /* Used to pass to co-routine device and ioc. */ diff --git a/hw/remote/machine.c b/hw/remote/machine.c index 0c5bd4f923..a9a75e170f 100644 --- a/hw/remote/machine.c +++ b/hw/remote/machine.c @@ -59,6 +59,25 @@ static void remote_machine_init(MachineState *machine) qbus_set_hotplug_handler(BUS(pci_host->bus), OBJECT(s)); } +static bool remote_machine_get_vfio_user(Object *obj, Error **errp) +{ + RemoteMachineState *s = REMOTE_MACHINE(obj); + + return s->vfio_user; +} + +static void remote_machine_set_vfio_user(Object *obj, bool value, Error **errp) +{ + RemoteMachineState *s = REMOTE_MACHINE(obj); + + if (phase_check(PHASE_MACHINE_CREATED)) { + error_setg(errp, "Error enabling vfio-user - machine already created"); + return; + } + + s->vfio_user = value; +} + static void remote_machine_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); @@ -68,6 +87,10 @@ static void remote_machine_class_init(ObjectClass *oc, void *data) mc->desc = "Experimental remote machine"; hc->unplug = qdev_simple_device_unplug_cb; + + object_class_property_add_bool(oc, "vfio-user", + remote_machine_get_vfio_user, + remote_machine_set_vfio_user); } static const TypeInfo remote_machine = {