[Qemu-devel] [RFC 01/18] pc: create "PC" device class

[Eduardo Habkost]

We can make it a child of a generic "machine" class later, but right now
a "PC" class is needed to allow global-properties to control some
details of CPU creation on the PC code.

Signed-off-by: Eduardo Habkost <address@hidden>
---
 hw/pc.c | 18 ++++++++++++++++++
 hw/pc.h |  6 ++++++
 2 files changed, 24 insertions(+)

diff --git a/hw/pc.c b/hw/pc.c
index 7e7e0e2..9b68282 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -550,6 +550,24 @@ static void bochs_bios_write(void *opaque, uint32_t addr, 
uint32_t val)
     }
 }
 
+typedef struct PC {
+    DeviceState parent_obj;
+} PC;
+
+static const TypeInfo pc_type_info = {
+    .name = TYPE_PC_MACHINE,
+    .parent = TYPE_DEVICE,
+    .instance_size = sizeof(PC),
+    .class_size = sizeof(DeviceClass),
+};
+
+static void pc_register_type(void)
+{
+    type_register_static(&pc_type_info);
+}
+
+type_init(pc_register_type);
+
 int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
 {
     int index = le32_to_cpu(e820_table.count);
diff --git a/hw/pc.h b/hw/pc.h
index e4db071..77e898f 100644
--- a/hw/pc.h
+++ b/hw/pc.h
@@ -102,6 +102,12 @@ void i8042_setup_a20_line(ISADevice *dev, qemu_irq 
*a20_out);
 /* pc.c */
 extern int fd_bootchk;
 
+#define TYPE_PC_MACHINE "PC"
+#define PC(obj) \
+    OBJECT_CHECK(PC, (obj), TYPE_PC_MACHINE)
+struct PC;
+typedef struct PC PC;
+
 void pc_register_ferr_irq(qemu_irq irq);
 void pc_acpi_smi_interrupt(void *opaque, int irq, int level);
 
-- 
1.7.11.4