xen: add framebuffer backend driver (Gerd Hoffmann)

This patch adds a frsamebuffer (and kbd+mouse) backend driver.  It
it based on current xen-unstable code.  It has been changed to make
use of the common backend driver code.  It also has been changed to
compile with xen headers older than release 3.3

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7222 c046a42c-6fe2-441c-8c8c-71466251a162

Makefile.target

@@ -562,7 +562,7 @@ endif
 
 # xen backend driver support
 XEN_OBJS := xen_machine_pv.o xen_backend.o
-XEN_OBJS += xen_console.o
+XEN_OBJS += xen_console.o xenfb.o
 ifeq ($(CONFIG_XEN), yes)
   OBJS += $(XEN_OBJS)
   LIBS += $(XEN_LIBS)

hw/xen_backend.h

@@ -85,5 +85,9 @@ void xen_be_printf(struct XenDevice *xendev, int msg_level, const char *fmt, ...
 
 /* actual backend drivers */
 extern struct XenDevOps xen_console_ops;      /* xen_console.c     */
+extern struct XenDevOps xen_kbdmouse_ops;     /* xen_framebuffer.c */
+extern struct XenDevOps xen_framebuffer_ops;  /* xen_framebuffer.c */
+
+void xen_init_display(int domid);
 
 #endif /* QEMU_HW_XEN_BACKEND_H */

hw/xen_machine_pv.c

@@ -57,6 +57,11 @@ static void xen_init_pv(ram_addr_t ram_size, int vga_ram_size,
         exit(1);
     }
     xen_be_register("console", &xen_console_ops);
+    xen_be_register("vkbd", &xen_kbdmouse_ops);
+    xen_be_register("vfb", &xen_framebuffer_ops);
+
+    /* setup framebuffer */
+    xen_init_display(xen_domid);
 }
 
 QEMUMachine xenpv_machine = {