diff options
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/X64/StuffRsb.inc')
-rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/X64/StuffRsb.inc | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/StuffRsb.inc b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/StuffRsb.inc deleted file mode 100644 index 14267c3fde..0000000000 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/StuffRsb.inc +++ /dev/null @@ -1,55 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2018, 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.
-;
-; Abstract:
-;
-; This file provides macro definitions for stuffing the Return Stack Buffer (RSB).
-;
-;------------------------------------------------------------------------------
-
-%define RSB_STUFF_ENTRIES 0x20
-
-;
-; parameters:
-; @param 1: register to use as counter (e.g. IA32:eax, X64:rax)
-; @param 2: stack pointer to restore (IA32:esp, X64:rsp)
-; @param 3: the size of a stack frame (IA32:4, X64:8)
-;
-%macro StuffRsb 3
- mov %1, RSB_STUFF_ENTRIES / 2
- %%Unroll1:
- call %%Unroll2
- %%SpecTrap1:
- pause
- lfence
- jmp %%SpecTrap1
- %%Unroll2:
- call %%StuffLoop
- %%SpecTrap2:
- pause
- lfence
- jmp %%SpecTrap2
- %%StuffLoop:
- dec %1
- jnz %%Unroll1
- add %2, RSB_STUFF_ENTRIES * %3 ; Restore the stack pointer
-%endmacro
-
-;
-; RSB stuffing macros for IA32 and X64
-;
-%macro StuffRsb32 0
- StuffRsb eax, esp, 4
-%endmacro
-
-%macro StuffRsb64 0
- StuffRsb rax, rsp, 8
-%endmacro
|