X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=linux_module%2Fpalacios-vm.c;fp=linux_module%2Fpalacios-vm.c;h=d19e7053d22e81e8b0c2587ba422c7878e2325e1;hb=5e16adcc49f8c77319004ada0276ccd301c67dd1;hp=4f53bcb47b511c7201f0c7206f984bb82f953d7a;hpb=ae06bda339f919423d0a2291759850dcee3f85da;p=palacios.releases.git

diff --git a/linux_module/palacios-vm.c b/linux_module/palacios-vm.c
index 4f53bcb..d19e705 100644
--- a/linux_module/palacios-vm.c
+++ b/linux_module/palacios-vm.c
@@ -16,13 +16,101 @@
 #include <linux/smp_lock.h>
 #include <linux/file.h>
 #include <linux/spinlock.h>
-
+#include <linux/rbtree.h>
 
 #include <palacios/vmm.h>
 
 #include "palacios.h"
 #include "palacios-vm.h"
 
+
+struct vm_ctrl {
+    unsigned int cmd;
+
+    int (*handler)(struct v3_guest * guest, 
+		   unsigned int cmd, unsigned long arg, 
+		   void * priv_data);
+
+    void * priv_data;
+
+    struct rb_node tree_node;
+};
+
+
+static inline struct vm_ctrl * __insert_ctrl(struct v3_guest * vm, 
+					     struct vm_ctrl * ctrl) {
+    struct rb_node ** p = &(vm->vm_ctrls.rb_node);
+    struct rb_node * parent = NULL;
+    struct vm_ctrl * tmp_ctrl = NULL;
+
+    while (*p) {
+	parent = *p;
+	tmp_ctrl = rb_entry(parent, struct vm_ctrl, tree_node);
+
+	if (ctrl->cmd < tmp_ctrl->cmd) {
+	    p = &(*p)->rb_left;
+	} else if (ctrl->cmd > tmp_ctrl->cmd) {
+	    p = &(*p)->rb_right;
+	} else {
+	    return tmp_ctrl;
+	}
+    }
+
+    rb_link_node(&(ctrl->tree_node), parent, p);
+
+    return NULL;
+}
+
+
+
+int add_guest_ctrl(struct v3_guest * guest, unsigned int cmd, 
+		   int (*handler)(struct v3_guest * guest, 
+				  unsigned int cmd, unsigned long arg, 
+				  void * priv_data),
+		   void * priv_data) {
+    struct vm_ctrl * ctrl = kmalloc(sizeof(struct vm_ctrl), GFP_KERNEL);
+
+    if (ctrl == NULL) {
+	printk("Error: Could not allocate vm ctrl %d\n", cmd);
+	return -1;
+    }
+
+    ctrl->cmd = cmd;
+    ctrl->handler = handler;
+    ctrl->priv_data = priv_data;
+
+    if (__insert_ctrl(guest, ctrl) != NULL) {
+	printk("Could not insert guest ctrl %d\n", cmd);
+	kfree(ctrl);
+	return -1;
+    }
+    
+    rb_insert_color(&(ctrl->tree_node), &(guest->vm_ctrls));
+
+    return 0;
+}
+
+
+static struct vm_ctrl * get_ctrl(struct v3_guest * guest, unsigned int cmd) {
+    struct rb_node * n = guest->vm_ctrls.rb_node;
+    struct vm_ctrl * ctrl = NULL;
+
+    while (n) {
+	ctrl = rb_entry(n, struct vm_ctrl, tree_node);
+
+	if (cmd < ctrl->cmd) {
+	    n = n->rb_left;
+	} else if (cmd > ctrl->cmd) {
+	    n = n->rb_right;
+	} else {
+	    return ctrl;
+	}
+    }
+
+    return NULL;
+}
+
+
 #ifdef V3_CONFIG_STREAM
 #include "palacios-stream.h"
 #endif
@@ -127,9 +215,17 @@ static long v3_vm_ioctl(struct file * filp,
 	    break;
 
 
-	default: 
-	    printk("\tUnhandled\n");
+	default: {
+	    struct vm_ctrl * ctrl = get_ctrl(guest, ioctl);
+
+	    if (ctrl) {
+		return ctrl->handler(guest, ioctl, arg, ctrl->priv_data);
+	    }
+	    
+	    
+	    printk("\tUnhandled ctrl cmd: %d\n", ioctl);
 	    return -EINVAL;
+	}
     }
 
     return 0;
@@ -179,6 +275,19 @@ int start_palacios_vm(void * arg)  {
     unlock_kernel();
     
 
+    guest->v3_ctx = v3_create_vm(guest->img, (void *)guest, guest->name);
+
+    if (guest->v3_ctx == NULL) { 
+	printk("palacios: failed to create vm\n");
+	complete(&(guest->start_done));
+	return -1;
+    }
+
+    // init linux extensions
+#ifdef V3_CONFIG_EXT_INSPECTOR
+    inspect_vm(guest);
+#endif
+
     printk("Creating VM device: Major %d, Minor %d\n", MAJOR(guest->vm_dev), MINOR(guest->vm_dev));
 
     cdev_init(&(guest->cdev), &v3_vm_fops);
@@ -217,9 +326,7 @@ int start_palacios_vm(void * arg)  {
     printk("palacios: launching vm\n");
 
 
-#ifdef V3_CONFIG_EXT_INSPECTOR
-    inspect_vm(guest);
-#endif
+
 
 
     if (v3_start_vm(guest->v3_ctx, 0xffffffff) < 0) {