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diff --git a/qemu/include/hw/isa/i8259_internal.h b/qemu/include/hw/isa/i8259_internal.h
new file mode 100644
index 000000000..cded50963
--- /dev/null
+++ b/qemu/include/hw/isa/i8259_internal.h
@@ -0,0 +1,83 @@
+/*
+ * QEMU 8259 - internal interfaces
+ *
+ * Copyright (c) 2011 Jan Kiszka, Siemens AG
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef QEMU_I8259_INTERNAL_H
+#define QEMU_I8259_INTERNAL_H
+
+#include "hw/hw.h"
+#include "hw/i386/pc.h"
+#include "hw/isa/isa.h"
+
+typedef struct PICCommonState PICCommonState;
+
+#define TYPE_PIC_COMMON "pic-common"
+#define PIC_COMMON(obj) \
+     OBJECT_CHECK(PICCommonState, (obj), TYPE_PIC_COMMON)
+#define PIC_COMMON_CLASS(klass) \
+     OBJECT_CLASS_CHECK(PICCommonClass, (klass), TYPE_PIC_COMMON)
+#define PIC_COMMON_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(PICCommonClass, (obj), TYPE_PIC_COMMON)
+
+typedef struct PICCommonClass
+{
+    ISADeviceClass parent_class;
+
+    void (*pre_save)(PICCommonState *s);
+    void (*post_load)(PICCommonState *s);
+} PICCommonClass;
+
+struct PICCommonState {
+    ISADevice parent_obj;
+
+    uint8_t last_irr; /* edge detection */
+    uint8_t irr; /* interrupt request register */
+    uint8_t imr; /* interrupt mask register */
+    uint8_t isr; /* interrupt service register */
+    uint8_t priority_add; /* highest irq priority */
+    uint8_t irq_base;
+    uint8_t read_reg_select;
+    uint8_t poll;
+    uint8_t special_mask;
+    uint8_t init_state;
+    uint8_t auto_eoi;
+    uint8_t rotate_on_auto_eoi;
+    uint8_t special_fully_nested_mode;
+    uint8_t init4; /* true if 4 byte init */
+    uint8_t single_mode; /* true if slave pic is not initialized */
+    uint8_t elcr; /* PIIX edge/trigger selection*/
+    uint8_t elcr_mask;
+    qemu_irq int_out[1];
+    uint32_t master; /* reflects /SP input pin */
+    uint32_t iobase;
+    uint32_t elcr_addr;
+    MemoryRegion base_io;
+    MemoryRegion elcr_io;
+};
+
+void pic_reset_common(PICCommonState *s);
+
+ISADevice *i8259_init_chip(const char *name, ISABus *bus, bool master);
+
+
+#endif /* !QEMU_I8259_INTERNAL_H */