Do not explain why VFIO_PLATFORM devices are user_creatable,
have them inherit TYPE_DYNAMIC_SYS_BUS_DEVICE, to make explicit
that they can optionally be plugged on TYPE_PLATFORM_BUS_DEVICE.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alexander Graf <graf@amazon.com>
Message-Id: <20250125181343.59151-5-philmd@linaro.org>
---
 hw/vfio/amd-xgbe.c      | 2 --
 hw/vfio/calxeda-xgmac.c | 2 --
 hw/vfio/platform.c      | 4 +---
 3 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/hw/vfio/amd-xgbe.c b/hw/vfio/amd-xgbe.c
index 96bd608b8dd..aaa96903db0 100644
--- a/hw/vfio/amd-xgbe.c
+++ b/hw/vfio/amd-xgbe.c
@@ -41,8 +41,6 @@ static void vfio_amd_xgbe_class_init(ObjectClass *klass, void *data)
                                     &vcxc->parent_realize);
     dc->desc = "VFIO AMD XGBE";
     dc->vmsd = &vfio_platform_amd_xgbe_vmstate;
-    /* Supported by TYPE_VIRT_MACHINE */
-    dc->user_creatable = true;
 }
 
 static const TypeInfo vfio_amd_xgbe_dev_info = {
diff --git a/hw/vfio/calxeda-xgmac.c b/hw/vfio/calxeda-xgmac.c
index 87c382e7361..b016d42b496 100644
--- a/hw/vfio/calxeda-xgmac.c
+++ b/hw/vfio/calxeda-xgmac.c
@@ -41,8 +41,6 @@ static void vfio_calxeda_xgmac_class_init(ObjectClass *klass, void *data)
                                     &vcxc->parent_realize);
     dc->desc = "VFIO Calxeda XGMAC";
     dc->vmsd = &vfio_platform_calxeda_xgmac_vmstate;
-    /* Supported by TYPE_VIRT_MACHINE */
-    dc->user_creatable = true;
 }
 
 static const TypeInfo vfio_calxeda_xgmac_dev_info = {
diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c
index 1070a2113a1..f491f4dc954 100644
--- a/hw/vfio/platform.c
+++ b/hw/vfio/platform.c
@@ -672,13 +672,11 @@ static void vfio_platform_class_init(ObjectClass *klass, void *data)
     dc->desc = "VFIO-based platform device assignment";
     sbc->connect_irq_notifier = vfio_start_irqfd_injection;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
-    /* Supported by TYPE_VIRT_MACHINE */
-    dc->user_creatable = true;
 }
 
 static const TypeInfo vfio_platform_dev_info = {
     .name = TYPE_VFIO_PLATFORM,
-    .parent = TYPE_SYS_BUS_DEVICE,
+    .parent = TYPE_DYNAMIC_SYS_BUS_DEVICE,
     .instance_size = sizeof(VFIOPlatformDevice),
     .instance_init = vfio_platform_instance_init,
     .class_init = vfio_platform_class_init,
-- 
2.47.1