OvmfPkg Sec: Convert X64/SecEntry.asm to NASM

[mirror_edk2.git] / OvmfPkg / Sec / X64 / SecEntry.nasm

diff --git a/OvmfPkg/Sec/X64/SecEntry.nasm b/OvmfPkg/Sec/X64/SecEntry.nasm
new file mode 100644 (file)
index 0000000..f40427a
--- /dev/null
+++ b/OvmfPkg/Sec/X64/SecEntry.nasm
@@ -0,0 +1,56 @@
+;------------------------------------------------------------------------------\r
+;*\r
+;*   Copyright (c) 2006 - 2013, 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
+;*   http://opensource.org/licenses/bsd-license.php\r
+;*\r
+;*   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+;*   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+;*\r
+;*    CpuAsm.asm\r
+;*\r
+;*   Abstract:\r
+;*\r
+;------------------------------------------------------------------------------\r
+\r
+#include <Base.h>\r
+\r
+DEFAULT REL\r
+SECTION .text\r
+\r
+extern ASM_PFX(SecCoreStartupWithStack)\r
+\r
+;\r
+; SecCore Entry Point\r
+;\r
+; Processor is in flat protected mode\r
+;\r
+; @param[in]  RAX   Initial value of the EAX register (BIST: Built-in Self Test)\r
+; @param[in]  DI    'BP': boot-strap processor, or 'AP': application processor\r
+; @param[in]  RBP   Pointer to the start of the Boot Firmware Volume\r
+;\r
+; @return     None  This routine does not return\r
+;\r
+global ASM_PFX(_ModuleEntryPoint)\r
+ASM_PFX(_ModuleEntryPoint):\r
+\r
+    ;\r
+    ; Load temporary RAM stack based on PCDs\r
+    ;\r
+    %define SEC_TOP_OF_STACK (FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + \\r
+                          FixedPcdGet32 (PcdOvmfSecPeiTempRamSize))\r
+    mov     rsp, SEC_TOP_OF_STACK\r
+    nop\r
+\r
+    ;\r
+    ; Setup parameters and call SecCoreStartupWithStack\r
+    ;   rcx: BootFirmwareVolumePtr\r
+    ;   rdx: TopOfCurrentStack\r
+    ;\r
+    mov     rcx, rbp\r
+    mov     rdx, rsp\r
+    sub     rsp, 0x20\r
+    call    ASM_PFX(SecCoreStartupWithStack)\r
+\r