Add tracing to xenfb.

Signed-off-by: Don Koch <dkoch@verizon.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

hw/display/xenfb.c

@@ -45,6 +45,8 @@
 #include <xen/io/kbdif.h>
 #include <xen/io/protocols.h>
 
+#include "trace.h"
+
 #ifndef BTN_LEFT
 #define BTN_LEFT 0x110 /* from <linux/input.h> */
 #endif
@@ -324,6 +326,8 @@ static void xenfb_mouse_event(void *opaque,
     int dh = surface_height(surface);
     int i;
 
+    trace_xenfb_mouse_event(opaque, dx, dy, dz, button_state,
+                            xenfb->abs_pointer_wanted);
     if (xenfb->abs_pointer_wanted)
 	xenfb_send_position(xenfb,
 			    dx * (dw - 1) / 0x7fff,
@@ -380,6 +384,7 @@ static void input_connected(struct XenDevice *xendev)
     if (in->qmouse) {
         qemu_remove_mouse_event_handler(in->qmouse);
     }
+    trace_xenfb_input_connected(xendev, in->abs_pointer_wanted);
     in->qmouse = qemu_add_mouse_event_handler(xenfb_mouse_event, in,
 					      in->abs_pointer_wanted,
 					      "Xen PVFB Mouse");

trace-events

@@ -203,6 +203,10 @@ hd_geometry_guess(void *blk, uint32_t cyls, uint32_t heads, uint32_t secs, int t
 jazz_led_read(uint64_t addr, uint8_t val) "read addr=0x%"PRIx64": 0x%x"
 jazz_led_write(uint64_t addr, uint8_t new) "write addr=0x%"PRIx64": 0x%x"
 
+# hw/display/xenfb.c
+xenfb_mouse_event(void *opaque, int dx, int dy, int dz, int button_state, int abs_pointer_wanted) "%p x %d y %d z %d bs %#x abs %d"
+xenfb_input_connected(void *xendev, int abs_pointer_wanted) "%p abs %d"
+
 # hw/net/lance.c
 lance_mem_readw(uint64_t addr, uint32_t ret) "addr=%"PRIx64"val=0x%04x"
 lance_mem_writew(uint64_t addr, uint32_t val) "addr=%"PRIx64"val=0x%04x"