2 files changed, 143 insertions, 0 deletions
diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/X64/InterruptTable.S b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/X64/InterruptTable.S
new file mode 100644
index 0000000000..95a0888863
--- /dev/null
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/X64/InterruptTable.S
@@ -0,0 +1,72 @@
+## @file
+#  Interrupt Redirection Template
+#
+# Copyright (c) 2006, 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 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.
+#
+##
+
+#text SEGMENT
+
+
+#----------------------------------------------------------------------------
+# Procedure:    InterruptRedirectionTemplate: Redirects interrupts 0x68-0x6F
+#
+# Input:        None
+#
+# Output:       None
+#
+# Prototype:    VOID
+#               InterruptRedirectionTemplate (
+#                                VOID
+#                                );
+#
+# Saves:        None
+#
+# Modified:     None
+#
+# Description:  Contains the code that is copied into low memory (below 640K).
+#               This code reflects interrupts 0x68-0x6f to interrupts 0x08-0x0f.
+#               This template must be copied into low memory, and the IDT entries
+#               0x68-0x6F must be point to the low memory copy of this code.  Each
+#               entry is 4 bytes long, so IDT entries 0x68-0x6F can be easily
+#               computed.
+#
+#----------------------------------------------------------------------------
+
+ASM_GLOBAL ASM_PFX(InterruptRedirectionTemplate)
+ASM_PFX(InterruptRedirectionTemplate):
+  int     $0x08
+  .byte      0x0cf          # IRET
+  nop
+  int     $0x09
+  .byte      0x0cf          # IRET
+  nop
+  int     $0x0a
+  .byte      0x0cf          # IRET
+  nop
+  int     $0x0b
+  .byte      0x0cf          # IRET
+  nop
+  int     $0x0c
+  .byte      0x0cf          # IRET
+  nop
+  int     $0x0d
+  .byte      0x0cf          # IRET
+  nop
+  int     $0x0e
+  .byte      0x0cf          # IRET
+  nop
+  int     $0x0f
+  .byte      0x0cf          # IRET
+  nop
+
+#END
diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/X64/InterruptTable.asm b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/X64/InterruptTable.asm
new file mode 100644
index 0000000000..750423e5b7
--- /dev/null
+++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/X64/InterruptTable.asm
@@ -0,0 +1,71 @@
+;; @file
+;  Interrupt Redirection Template
+;
+; Copyright (c) 2006, 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 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.
+;
+;;
+
+text SEGMENT
+
+;----------------------------------------------------------------------------
+; Procedure:    InterruptRedirectionTemplate: Redirects interrupts 0x68-0x6F 
+;
+; Input:        None
+;
+; Output:       None
+;
+; Prototype:    VOID
+;               InterruptRedirectionTemplate (  
+;                                VOID
+;                                );
+;
+; Saves:        None
+;
+; Modified:     None
+;
+; Description:  Contains the code that is copied into low memory (below 640K).
+;               This code reflects interrupts 0x68-0x6f to interrupts 0x08-0x0f.
+;               This template must be copied into low memory, and the IDT entries
+;               0x68-0x6F must be point to the low memory copy of this code.  Each
+;               entry is 4 bytes long, so IDT entries 0x68-0x6F can be easily 
+;               computed.
+;
+;----------------------------------------------------------------------------
+
+InterruptRedirectionTemplate PROC
+  int     08h
+  DB      0cfh          ; IRET
+  nop
+  int     09h
+  DB      0cfh          ; IRET
+  nop
+  int     0ah
+  DB      0cfh          ; IRET
+  nop
+  int     0bh
+  DB      0cfh          ; IRET
+  nop
+  int     0ch
+  DB      0cfh          ; IRET
+  nop
+  int     0dh
+  DB      0cfh          ; IRET
+  nop
+  int     0eh
+  DB      0cfh          ; IRET
+  nop
+  int     0fh
+  DB      0cfh          ; IRET
+  nop
+InterruptRedirectionTemplate ENDP
+
+END
+\ No newline at end of file