xive: Make some device types not user creatable

Some device types of the XIVE model are exposed to the QEMU command
line:

$ ppc64-softmmu/qemu-system-ppc64 -device help | grep xive
name "xive-end-source", desc "XIVE END Source"
name "xive-source", desc "XIVE Interrupt Source"
name "xive-tctx", desc "XIVE Interrupt Thread Context"

These are internal devices that shouldn't be instantiable by the
user. By the way, they can't be because their respective realize
functions expect link properties that can't be set from the command
line:

qemu-system-ppc64: -device xive-source: required link 'xive' not found:
 Property '.xive' not found
qemu-system-ppc64: -device xive-end-source: required link 'xive' not found:
 Property '.xive' not found
qemu-system-ppc64: -device xive-tctx: required link 'cpu' not found:
 Property '.cpu' not found

Hide them by setting dc->user_creatable to false in their respective
class init functions.

Signed-off-by: Greg Kurz <[email protected]>
Message-Id: <157017473006.331610.2983143972519884544[email protected]>
Message-Id: <157045578401.865784.6058183726552779559[email protected]>
Reviewed-by: Cédric Le Goater <[email protected]>
[dwg: Folded comment update into base patch]
Signed-off-by: David Gibson <[email protected]>

diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 29df06df1136de0022f1c8c4b12da6ff8d4256ab..453d389848f867af208236f714008e897e56f2e8 100644 (file)
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -670,6 +670,11 @@ static void xive_tctx_class_init(ObjectClass *klass, void *data)
     dc->realize = xive_tctx_realize;
     dc->unrealize = xive_tctx_unrealize;
     dc->vmsd = &vmstate_xive_tctx;
+    /*
+     * Reason: part of XIVE interrupt controller, needs to be wired up
+     * by xive_tctx_create().
+     */
+    dc->user_creatable = false;
 }
 
 static const TypeInfo xive_tctx_info = {
@@ -1118,6 +1123,11 @@ static void xive_source_class_init(ObjectClass *klass, void *data)
     dc->props   = xive_source_properties;
     dc->realize = xive_source_realize;
     dc->vmsd    = &vmstate_xive_source;
+    /*
+     * Reason: part of XIVE interrupt controller, needs to be wired up,
+     * e.g. by spapr_xive_instance_init().
+     */
+    dc->user_creatable = false;
 }
 
 static const TypeInfo xive_source_info = {
@@ -1853,6 +1863,11 @@ static void xive_end_source_class_init(ObjectClass *klass, void *data)
     dc->desc    = "XIVE END Source";
     dc->props   = xive_end_source_properties;
     dc->realize = xive_end_source_realize;
+    /*
+     * Reason: part of XIVE interrupt controller, needs to be wired up,
+     * e.g. by spapr_xive_instance_init().
+     */
+    dc->user_creatable = false;
 }
 
 static const TypeInfo xive_end_source_info = {