diff options
| author | Peter Xu | 2019-09-16 10:07:16 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2019-09-16 12:57:24 +0200 |
| commit | d2321d31ff98b75b652c2b1594f00a4cfd48102a (patch) | |
| tree | 076d75ca1e63764fffb271f55eb9cde7f915e4d2 /hw/core/qdev.c | |
| parent | intel_iommu: Sanity check vfio-pci config on machine init done (diff) | |
| download | qemu-d2321d31ff98b75b652c2b1594f00a4cfd48102a.tar.gz qemu-d2321d31ff98b75b652c2b1594f00a4cfd48102a.tar.xz qemu-d2321d31ff98b75b652c2b1594f00a4cfd48102a.zip | |
qdev/machine: Introduce hotplug_allowed hook
Introduce this new per-machine hook to give any machine class a chance
to do a sanity check on the to-be-hotplugged device as a sanity test.
This will be used for x86 to try to detect some illegal configuration
of devices, e.g., possible conflictions between vfio-pci and x86
vIOMMU.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20190916080718.3299-3-peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/core/qdev.c')
| -rw-r--r-- | hw/core/qdev.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/hw/core/qdev.c b/hw/core/qdev.c index 60d66c2f39..cbad6c1d55 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -237,6 +237,23 @@ HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev) return NULL; } +bool qdev_hotplug_allowed(DeviceState *dev, Error **errp) +{ + MachineState *machine; + MachineClass *mc; + Object *m_obj = qdev_get_machine(); + + if (object_dynamic_cast(m_obj, TYPE_MACHINE)) { + machine = MACHINE(m_obj); + mc = MACHINE_GET_CLASS(machine); + if (mc->hotplug_allowed) { + return mc->hotplug_allowed(machine, dev, errp); + } + } + + return true; +} + HotplugHandler *qdev_get_bus_hotplug_handler(DeviceState *dev) { if (dev->parent_bus) { |