vga: export vga_mem_{read,write}

Signed-off-by: NJuan Quintela <quintela@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/vga.c

@@ -2113,13 +2113,13 @@ static void vga_update_text(void *opaque, console_ch_t *chardata)
     dpy_update(s->ds, 0, 0, s->last_width, height);
 }
 
-static CPUReadMemoryFunc * const vga_mem_read[3] = {
+CPUReadMemoryFunc * const vga_mem_read[3] = {
     vga_mem_readb,
     vga_mem_readw,
     vga_mem_readl,
 };
 
-static CPUWriteMemoryFunc * const vga_mem_write[3] = {
+CPUWriteMemoryFunc * const vga_mem_write[3] = {
     vga_mem_writeb,
     vga_mem_writew,
     vga_mem_writel,

hw/vga_int.h

@@ -220,3 +220,5 @@ extern const uint8_t gr_mask[16];
 
 #define VGA_RAM_SIZE (8192 * 1024)
 
+extern CPUReadMemoryFunc * const vga_mem_read[3];
+extern CPUWriteMemoryFunc * const vga_mem_write[3];