From 8a412564974cb54d22eb170427657be71526f3b1 Mon Sep 17 00:00:00 2001
From: Liav A <liavalb@gmail.com>
Date: Wed, 5 Feb 2020 20:47:53 +0200
Subject: [PATCH] Kernel Commandline: Change no_vmmouse boot argument to be
 vmmouse

Instead of having no_vmmouse, the boot argument now is vmmouse='on|off'.
---
 Kernel/init.cpp | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/Kernel/init.cpp b/Kernel/init.cpp
index 6c5d50a5b2..b201f939a1 100644
--- a/Kernel/init.cpp
+++ b/Kernel/init.cpp
@@ -75,6 +75,7 @@
 [[noreturn]] static void init_stage2();
 static void setup_serial_debug();
 static void setup_acpi();
+static void setup_vmmouse();
 
 VirtualConsole* tty0;
 
@@ -123,9 +124,7 @@ extern "C" [[noreturn]] void init()
 
     new KeyboardDevice;
     new PS2MouseDevice;
-    VMWareBackdoor::initialize();
-    if (!KParams::the().has("no_vmmouse"))
-        VMWareBackdoor::the().enable_absolute_vmmouse();
+    setup_vmmouse();
 
     new SB16;
     new NullDevice;
@@ -420,3 +419,21 @@ void setup_acpi()
     kprintf("acpi boot argmuent has an invalid value.\n");
     hang();
 }
+
+void setup_vmmouse()
+{
+    VMWareBackdoor::initialize();
+    if (!KParams::the().has("vmmouse")) {
+        VMWareBackdoor::the().enable_absolute_vmmouse();
+        return;
+    }
+    auto vmmouse = KParams::the().get("vmmouse");
+    if (vmmouse == "off")
+        return;
+    if (vmmouse == "on") {
+        VMWareBackdoor::the().enable_absolute_vmmouse();
+        return;
+    }
+    kprintf("vmmouse boot argmuent has an invalid value.\n");
+    hang();
+}