1 files changed, 47 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/UefiPayloadPkg/UefiPayloadEntry/X64/SecEntry.nasm b/src/VBox/Devices/EFI/Firmware/UefiPayloadPkg/UefiPayloadEntry/X64/SecEntry.nasm
new file mode 100644
index 00000000..654f1166
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/UefiPayloadPkg/UefiPayloadEntry/X64/SecEntry.nasm
@@ -0,0 +1,47 @@
+;------------------------------------------------------------------------------
+;*
+;*   Copyright (c) 2006 - 2020, Intel Corporation. All rights reserved.<BR>
+;*   SPDX-License-Identifier: BSD-2-Clause-Patent
+
+;------------------------------------------------------------------------------
+
+#include <Base.h>
+
+DEFAULT REL
+SECTION .text
+
+extern ASM_PFX(PayloadEntry)
+extern  ASM_PFX(PcdGet32 (PcdPayloadStackTop))
+
+;
+; SecCore Entry Point
+;
+; Processor is in flat protected mode
+
+global ASM_PFX(_ModuleEntryPoint)
+ASM_PFX(_ModuleEntryPoint):
+
+  ;
+  ; Disable all the interrupts
+  ;
+  cli
+
+
+  mov   rsp, FixedPcdGet32 (PcdPayloadStackTop)
+
+  ;
+  ; Push the bootloader parameter address onto new stack
+  ;
+  push  rcx
+  mov   rax, 0
+  push  rax ; shadow space
+  push  rax
+  push  rax
+  push  rax
+
+  ;
+  ; Call into C code
+  ;
+  call  ASM_PFX(PayloadEntry)
+  jmp   $
+