diff --git a/Library/OcAppleKernelLib/CommonPatches.c b/Library/OcAppleKernelLib/CommonPatches.c
new file mode 100644
index 00000000..2b53cb39
--- /dev/null
+++ b/Library/OcAppleKernelLib/CommonPatches.c
@@ -0,0 +1,263 @@
+/** @file
+  Commonly used kext patches.
+
+Copyright (c) 2018, vit9696. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Uefi.h>
+#include <PiDxe.h>
+#include <Library/PcdLib.h>
+#include <Library/UefiLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/UefiApplicationEntryPoint.h>
+#include <Library/OcDevicePropertyLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/OcMiscLib.h>
+#include <Library/OcProtocolLib.h>
+#include <Library/OcAppleBootPolicyLib.h>
+#include <Library/OcSmbiosLib.h>
+#include <Library/OcCpuLib.h>
+#include <Library/OcStringLib.h>
+#include <Library/OcVirtualFsLib.h>
+#include <Library/OcAppleKernelLib.h>
+#include <Library/OcFileLib.h>
+#include <Library/OcMachoLib.h>
+#include <Library/OcXmlLib.h>
+
+#include <Protocol/AppleBootPolicy.h>
+#include <Protocol/DevicePathPropertyDatabase.h>
+
+
+#include <Uefi.h>
+#include <Library/DebugLib.h>
+#include <Library/PrintLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Protocol/GraphicsOutput.h>
+#include <Protocol/SimpleTextInEx.h>
+#include <Protocol/SimpleFileSystem.h>
+
+
+STATIC
+UINT8
+AppleIntelCPUPowerManagementPatchFind[] = {
+  0xB9, 0xE2, 0x00, 0x00, 0x00,     // mov ecx, 0xe2
+  0x0F, 0x30                        // wrmsr
+};
+
+STATIC
+UINT8
+AppleIntelCPUPowerManagementPatchReplace[] = {
+  0xB9, 0xE2, 0x00, 0x00, 0x00,     // mov ecx, 0xe2
+  0x90, 0x90                        // nop nop
+};
+
+STATIC
+PATCHER_GENERIC_PATCH
+AppleIntelCPUPowerManagementPatch = {
+  .Base    = NULL, // Symbolic patch
+  .Find    = AppleIntelCPUPowerManagementPatchFind,
+  .Mask    = NULL,
+  .Replace = AppleIntelCPUPowerManagementPatchReplace,
+  .ReplaceMask = NULL,
+  .Size    = sizeof (AppleIntelCPUPowerManagementPatchFind),
+  .Count   = 0,
+  .Skip    = 0
+};
+
+STATIC
+UINT8
+AppleIntelCPUPowerManagementPatch2Find[] = {
+  0xB9, 0xE2, 0x00, 0x00, 0x00,       // mov ecx, 0xe2
+  0x48, 0x89, 0xF0,                   // mov rax, <some register>
+  0x0F, 0x30                          // wrmsr
+};
+
+STATIC
+UINT8
+AppleIntelCPUPowerManagementPatch2FindMask[] = {
+  0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+  0xFF, 0xFF, 0xF0,
+  0xFF, 0xFF
+};
+
+STATIC
+UINT8
+AppleIntelCPUPowerManagementPatch2Replace[] = {
+  0x00, 0x00, 0x00, 0x00, 0x00,       // leave as is
+  0x00, 0x00, 0x00,                   // leave as is
+  0x90, 0x90                          // nop nop
+};
+
+STATIC
+UINT8
+AppleIntelCPUPowerManagementPatch2ReplaceMask[] = {
+  0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00,
+  0xFF, 0xFF
+};
+
+STATIC
+PATCHER_GENERIC_PATCH
+AppleIntelCPUPowerManagementPatch2 = {
+  .Base    = NULL,
+  .Find    = AppleIntelCPUPowerManagementPatch2Find,
+  .Mask    = AppleIntelCPUPowerManagementPatch2FindMask,
+  .Replace = AppleIntelCPUPowerManagementPatch2Replace,
+  .ReplaceMask = AppleIntelCPUPowerManagementPatch2ReplaceMask,
+  .Size    = sizeof (AppleIntelCPUPowerManagementPatch2Find),
+  .Count   = 0,
+  .Skip    = 0
+};
+
+/**
+ Apply MSR E2 patches to AppleIntelCPUPowerManagement kext
+
+ @param Context Prelinked kernel context
+ */
+EFI_STATUS
+PatchAppleIntelCPUPowerManagement (
+  PRELINKED_CONTEXT  *Context
+  )
+{
+  EFI_STATUS       Status;
+  PATCHER_CONTEXT  Patcher;
+
+  Status = PatcherInitContextFromPrelinked (
+    &Patcher,
+    Context,
+    "com.apple.driver.AppleIntelCPUPowerManagement"
+    );
+  
+  if (!EFI_ERROR (Status)) {
+    Status = PatcherApplyGenericPatch (&Patcher, &AppleIntelCPUPowerManagementPatch);
+    if (EFI_ERROR (Status)) {
+      DEBUG ((DEBUG_WARN, "Failed to apply patch com.apple.driver.AppleIntelCPUPowerManagement - %r\n", Status));
+    } else {
+      DEBUG ((DEBUG_WARN, "Patch success com.apple.driver.AppleIntelCPUPowerManagement\n"));
+    }
+    Status = PatcherApplyGenericPatch (&Patcher, &AppleIntelCPUPowerManagementPatch2);
+    if (EFI_ERROR (Status)) {
+      DEBUG ((DEBUG_WARN, "Failed to apply patch com.apple.driver.AppleIntelCPUPowerManagement - %r\n", Status));
+    } else {
+      DEBUG ((DEBUG_WARN, "Patch success com.apple.driver.AppleIntelCPUPowerManagement\n"));
+    }
+  } else {
+    DEBUG ((DEBUG_WARN, "Failed to find com.apple.driver.AppleIntelCPUPowerManagement - %r\n", Status));
+  }
+  
+  return Status;
+}
+
+STATIC
+UINT8
+RemoveUsbLimitV1Find[] = {
+  0xff, 0xff, 0x10
+};
+
+STATIC
+UINT8
+RemoveUsbLimitV1Replace[] = {
+  0xff, 0xff, 0x40
+};
+
+STATIC
+PATCHER_GENERIC_PATCH
+RemoveUsbLimitV1Patch = {
+  .Base    = "__ZN15AppleUSBXHCIPCI11createPortsEv",
+  .Find    = RemoveUsbLimitV1Find,
+  .Mask    = NULL,
+  .Replace = RemoveUsbLimitV1Replace,
+  .ReplaceMask = NULL,
+  .Size    = sizeof (RemoveUsbLimitV1Replace),
+  .Count   = 1,
+  .Skip    = 0
+};
+
+STATIC
+UINT8
+RemoveUsbLimitV2Find[] = {
+  0x0f, 0x0f, 0x83
+};
+
+STATIC
+UINT8
+RemoveUsbLimitV2Replace[] = {
+  0x40, 0x0f, 0x83
+};
+
+STATIC
+PATCHER_GENERIC_PATCH
+RemoveUsbLimitV2Patch = {
+  .Base    = "__ZN12AppleUSBXHCI11createPortsEv",
+  .Find    = RemoveUsbLimitV2Find,
+  .Mask    = NULL,
+  .Replace = RemoveUsbLimitV2Replace,
+  .ReplaceMask = NULL,
+  .Size    = sizeof (RemoveUsbLimitV2Replace),
+  .Count   = 1,
+  .Skip    = 0
+};
+
+/**
+ Apply port limit patches to AppleUSBXHCI and AppleUSBXHCIPCI kexts
+
+ @param Context Prelinked kernel context
+ */
+EFI_STATUS
+RemoveUSBXHCIPortLimit (
+  PRELINKED_CONTEXT  *Context
+  )
+{
+  EFI_STATUS       Status;
+  PATCHER_CONTEXT  Patcher;
+  
+  Status = PatcherInitContextFromPrelinked (
+    &Patcher,
+    Context,
+    "com.apple.driver.usb.AppleUSBXHCI"
+    );
+  
+  if (!EFI_ERROR (Status)) {
+    Status = PatcherApplyGenericPatch (&Patcher, &RemoveUsbLimitV2Patch);
+    if (EFI_ERROR (Status)) {
+      DEBUG ((DEBUG_WARN, "Failed to apply patch com.apple.driver.usb.AppleUSBXHCI - %r\n", Status));
+    } else {
+      DEBUG ((DEBUG_WARN, "Patch success com.apple.driver.usb.AppleUSBXHCI\n"));
+    }
+  } else {
+    DEBUG ((DEBUG_WARN, "Failed to find com.apple.driver.usb.AppleUSBXHCI - %r\n", Status));
+  }
+  
+  Status = PatcherInitContextFromPrelinked (
+    &Patcher,
+    Context,
+    "com.apple.driver.usb.AppleUSBXHCIPCI"
+    );
+  
+  if (!EFI_ERROR (Status)) {
+    Status = PatcherApplyGenericPatch (&Patcher, &RemoveUsbLimitV1Patch);
+    if (EFI_ERROR (Status)) {
+      DEBUG ((DEBUG_WARN, "Failed to apply patch com.apple.driver.usb.AppleUSBXHCIPCI - %r\n", Status));
+    } else {
+      DEBUG ((DEBUG_WARN, "Patch success com.apple.driver.usb.AppleUSBXHCIPCI\n"));
+    }
+  } else {
+    DEBUG ((DEBUG_WARN, "Failed to find com.apple.driver.usb.AppleUSBXHCIPCI - %r\n", Status));
+  }
+  
+  return Status;
+}
+