UefiCpuPkg/PiSmmCpu: Add Shadow Stack Support for X86 SMM.

[mirror_edk2.git] / UefiCpuPkg / PiSmmCpuDxeSmm / Ia32 / SmiException.nasm

diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm
index 879fa0ba6309d548fb8b03c7882c24e4605f3aca..97a5fcad323d28b9c54178cc0b362f57c5ff7024 100644 (file)
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm
@@ -1,5 +1,5 @@
 ;------------------------------------------------------------------------------ ;\r
-; Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>\r
+; Copyright (c) 2009 - 2019, Intel Corporation. All rights reserved.<BR>\r
 ; This program and the accompanying materials\r
 ; are licensed and made available under the terms and conditions of the BSD License\r
 ; which accompanies this distribution.  The full text of the license may be found at\r
@@ -89,7 +89,7 @@ TssSeg:
             DB      0x80                ; LimitHigh\r
             DB      0                   ; BaseHigh\r
 ExceptionTssSeg:\r
-            DW      TSS_DESC_SIZE       ; LimitLow\r
+            DW      EXCEPTION_TSS_DESC_SIZE       ; LimitLow\r
             DW      0                   ; BaseLow\r
             DB      0                   ; BaseMid\r
             DB      0x89\r
@@ -223,6 +223,8 @@ ExceptionTssDescriptor:
             DW      0                   ; Reserved\r
             DW      0                   ; T\r
             DW      0                   ; I/O Map Base\r
+            DD      0                   ; SSP\r
+EXCEPTION_TSS_DESC_SIZE equ $ - ExceptionTssDescriptor\r
 \r
 ASM_PFX(gcPsd):\r
             DB      'PSDSIG  '\r