hw/misc/pvpanic: split-out generic and bus dependent code

To ease the PCI device addition in next patches, split the code as follows:
- generic code (read/write/setup) is being kept in pvpanic.c
- ISA dependent code moved to pvpanic-isa.c

Also, rename:
- ISA_PVPANIC_DEVICE -> PVPANIC_ISA_DEVICE.
- TYPE_PVPANIC -> TYPE_PVPANIC_ISA.
- MemoryRegion io -> mr.
- pvpanic_ioport_* in pvpanic_*.

Update the build system with the new files and config structure.

Signed-off-by: Mihai Carabas <mihai.carabas@oracle.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 21 insertions, 2 deletions

diff --git a/include/hw/misc/pvpanic.h b/include/hw/misc/pvpanic.h
index ae0c8188ce..abc9dde34b 100644
--- a/include/hw/misc/pvpanic.h
+++ b/include/hw/misc/pvpanic.h
@@ -17,13 +17,32 @@
 
 #include "qom/object.h"
 
-#define TYPE_PVPANIC "pvpanic"
+#define TYPE_PVPANIC_ISA_DEVICE "pvpanic"
 
 #define PVPANIC_IOPORT_PROP "ioport"
 
+/* The bit of supported pv event, TODO: include uapi header and remove this */
+#define PVPANIC_F_PANICKED      0
+#define PVPANIC_F_CRASHLOADED   1
+
+/* The pv event value */
+#define PVPANIC_PANICKED        (1 << PVPANIC_F_PANICKED)
+#define PVPANIC_CRASHLOADED     (1 << PVPANIC_F_CRASHLOADED)
+
+/*
+ * PVPanicState for any device type
+ */
+typedef struct PVPanicState PVPanicState;
+struct PVPanicState {
+    MemoryRegion mr;
+    uint8_t events;
+};
+
+void pvpanic_setup_io(PVPanicState *s, DeviceState *dev, unsigned size);
+
 static inline uint16_t pvpanic_port(void)
 {
-    Object *o = object_resolve_path_type("", TYPE_PVPANIC, NULL);
+    Object *o = object_resolve_path_type("", TYPE_PVPANIC_ISA_DEVICE, NULL);
     if (!o) {
         return 0;
     }