machine: allowed/required kernel-irqchip support

The code using kernel-irqchip property requires 'allowed/required'
functionality. Replace machine's kernel_irqchip field with two fields
representing the new functionality and expose them through wrappers.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>

2 files changed, 19 insertions, 10 deletions

diff --git a/hw/core/machine.c b/hw/core/machine.c
index 096eb1030f..e04e5ab330 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -31,18 +31,12 @@ static void machine_set_accel(Object *obj, const char *value, Error **errp)
     ms->accel = g_strdup(value);
 }
 
-static bool machine_get_kernel_irqchip(Object *obj, Error **errp)
-{
-    MachineState *ms = MACHINE(obj);
-
-    return ms->kernel_irqchip;
-}
-
 static void machine_set_kernel_irqchip(Object *obj, bool value, Error **errp)
 {
     MachineState *ms = MACHINE(obj);
 
-    ms->kernel_irqchip = value;
+    ms->kernel_irqchip_allowed = value;
+    ms->kernel_irqchip_required = value;
 }
 
 static void machine_get_kvm_shadow_mem(Object *obj, Visitor *v,
@@ -289,13 +283,15 @@ static void machine_initfn(Object *obj)
 {
     MachineState *ms = MACHINE(obj);
 
+    ms->kernel_irqchip_allowed = true;
+
     object_property_add_str(obj, "accel",
                             machine_get_accel, machine_set_accel, NULL);
     object_property_set_description(obj, "accel",
                                     "Accelerator list",
                                     NULL);
     object_property_add_bool(obj, "kernel-irqchip",
-                             machine_get_kernel_irqchip,
+                             NULL,
                              machine_set_kernel_irqchip,
                              NULL);
     object_property_set_description(obj, "kernel-irqchip",
@@ -408,6 +404,16 @@ bool machine_iommu(MachineState *machine)
     return machine->iommu;
 }
 
+bool machine_kernel_irqchip_allowed(MachineState *machine)
+{
+    return machine->kernel_irqchip_allowed;
+}
+
+bool machine_kernel_irqchip_required(MachineState *machine)
+{
+    return machine->kernel_irqchip_required;
+}
+
 static const TypeInfo machine_info = {
     .name = TYPE_MACHINE,
     .parent = TYPE_OBJECT,
diff --git a/include/hw/boards.h b/include/hw/boards.h
index a12f041d86..69ab606964 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -67,6 +67,8 @@ extern MachineState *current_machine;
 
 bool machine_usb(MachineState *machine);
 bool machine_iommu(MachineState *machine);
+bool machine_kernel_irqchip_allowed(MachineState *machine);
+bool machine_kernel_irqchip_required(MachineState *machine);
 
 /**
  * MachineClass:
@@ -125,7 +127,8 @@ struct MachineState {
     /*< public >*/
 
     char *accel;
-    bool kernel_irqchip;
+    bool kernel_irqchip_allowed;
+    bool kernel_irqchip_required;
     int kvm_shadow_mem;
     char *dtb;
     char *dumpdtb;