added bochs console support

diff --git a/palacios/src/devices/bochs_debug.c b/palacios/src/devices/bochs_debug.c
index b834ba3..4d3d284 100644 (file)
--- a/palacios/src/devices/bochs_debug.c
+++ b/palacios/src/devices/bochs_debug.c
@@ -28,6 +28,7 @@
 #define BOCHS_INFO_PORT 0x402
 #define BOCHS_DEBUG_PORT 0x403
 
+#define BOCHS_CONSOLE_PORT 0xe9
 
 
 struct debug_state {
@@ -36,6 +37,9 @@ struct debug_state {
 
     char info_buf[BUF_SIZE];
     uint_t info_offset;
+
+    char cons_buf[BUF_SIZE];
+    uint_t cons_offset;
 };
 
 static int handle_info_write(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
@@ -68,6 +72,21 @@ static int handle_debug_write(ushort_t port, void * src, uint_t length, struct v
 }
 
 
+static int handle_console_write(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
+    struct debug_state * state = (struct debug_state *)dev->private_data;
+
+    state->cons_buf[state->cons_offset++] = *(char*)src;
+
+    if ((*(char*)src == 0xa) ||  (state->cons_offset == (BUF_SIZE - 1))) {
+       PrintDebug("BOCHSCONSOLE>%s", state->cons_buf);
+       memset(state->cons_buf, 0, BUF_SIZE);
+       state->cons_offset = 0;
+    }
+
+    return length;
+}
+
+
 static int handle_gen_write(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
 
     switch (length) {
@@ -103,6 +122,8 @@ static int debug_init(struct vm_device * dev) {
     v3_dev_hook_io(dev, BOCHS_PORT2, NULL, &handle_gen_write);
     v3_dev_hook_io(dev, BOCHS_INFO_PORT, NULL, &handle_info_write);
     v3_dev_hook_io(dev, BOCHS_DEBUG_PORT, NULL, &handle_debug_write);
+    v3_dev_hook_io(dev, BOCHS_CONSOLE_PORT, NULL, &handle_console_write);
+    
   
     return 0;
 }