Changeset 58459 in vbox for trunk/src/VBox/Devices/EFI/Firmware/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c

Timestamp:

Oct 28, 2015 8:17:18 PM (9 years ago)

Author:

vboxsync

Message:

EFI/Firmware: 'svn merge ^{/vendor/edk2/UDK2010.SR1} /vendor/edk2/current .', reverting and removing files+dirs listed in ReadMe.vbox, resolving conflicts with help from ../UDK2014.SP1/. This is a raw untested merge.

Location:

trunk/src/VBox/Devices/EFI/Firmware

Files:

• . (modified) (1 prop)
• MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c (modified) (2 diffs)

trunk/src/VBox/Devices/EFI/Firmware/MdePkg/Library/PeiServicesTablePointerLibKr7/PeiServicesTablePointer.c

@@ -3 +3 @@
   Register 7 to store the pointer.
 
-  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
@@ -67 +67 @@
 }
   
+/**
+  Perform CPU specific actions required to migrate the PEI Services Table 
+  pointer from temporary RAM to permanent RAM.
 
+  For IA32 CPUs, the PEI Services Table pointer is stored in the 4 bytes 
+  immediately preceding the Interrupt Descriptor Table (IDT) in memory.
+  For X64 CPUs, the PEI Services Table pointer is stored in the 8 bytes 
+  immediately preceding the Interrupt Descriptor Table (IDT) in memory.
+  For Itanium and ARM CPUs, a the PEI Services Table Pointer is stored in
+  a dedicated CPU register.  This means that there is no memory storage 
+  associated with storing the PEI Services Table pointer, so no additional 
+  migration actions are required for Itanium or ARM CPUs.
 
+**/
+VOID
+EFIAPI
+MigratePeiServicesTablePointer (
+  VOID
+  )
+{
+  return;
+}