--- /dev/null
+;------------------------------------------------------------------------------\r
+;\r
+; Copyright (c) 2015 - 2016, 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
+; Abstract:\r
+;\r
+; Entry point for the coreboot UEFI payload.\r
+;\r
+;------------------------------------------------------------------------------\r
+\r
+SECTION .text\r
+\r
+; C Functions\r
+extern ASM_PFX(SecStartup)\r
+\r
+; Pcds\r
+extern ASM_PFX(PcdGet32 (PcdPayloadFdMemBase))\r
+\r
+;\r
+; SecCore Entry Point\r
+;\r
+; Processor is in flat protected mode\r
+;\r
+; @param[in] EAX 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] EBP 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
+ ; Disable all the interrupts\r
+ ;\r
+ cli\r
+ ;\r
+ ; Construct the temporary memory at 0x80000, length 0x10000\r
+ ;\r
+ mov esp, (BASE_512KB + SIZE_64KB)\r
+\r
+ ;\r
+ ; Pass BFV into the PEI Core\r
+ ;\r
+ push DWORD [ASM_PFX(PcdGet32 (PcdPayloadFdMemBase))]\r
+\r
+ ;\r
+ ; Pass stack base into the PEI Core\r
+ ;\r
+ push BASE_512KB\r
+\r
+ ;\r
+ ; Pass stack size into the PEI Core\r
+ ;\r
+ push SIZE_64KB\r
+\r
+ ;\r
+ ; Pass Control into the PEI Core\r
+ ;\r
+ call ASM_PFX(SecStartup)\r
+\r
+ ;\r
+ ; Should never return\r
+ ;\r
+ jmp $\r
+\r
--- /dev/null
+;------------------------------------------------------------------------------\r
+;\r
+; Copyright (c) 2015 - 2016, 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
+; Abstract:\r
+;\r
+; Switch the stack from temporary memory to permanent memory.\r
+;\r
+;------------------------------------------------------------------------------\r
+\r
+SECTION .text\r
+\r
+;------------------------------------------------------------------------------\r
+; VOID\r
+; EFIAPI\r
+; SecSwitchStack (\r
+; UINT32 TemporaryMemoryBase,\r
+; UINT32 PermenentMemoryBase\r
+; );\r
+;------------------------------------------------------------------------------\r
+global ASM_PFX(SecSwitchStack)\r
+ASM_PFX(SecSwitchStack):\r
+ ;\r
+ ; Save three register: eax, ebx, ecx\r
+ ;\r
+ push eax\r
+ push ebx\r
+ push ecx\r
+ push edx\r
+\r
+ ;\r
+ ; !!CAUTION!! this function address's is pushed into stack after\r
+ ; migration of whole temporary memory, so need save it to permanent\r
+ ; memory at first!\r
+ ;\r
+\r
+ mov ebx, [esp + 20] ; Save the first parameter\r
+ mov ecx, [esp + 24] ; Save the second parameter\r
+\r
+ ;\r
+ ; Save this function's return address into permanent memory at first.\r
+ ; Then, Fixup the esp point to permanent memory\r
+ ;\r
+ mov eax, esp\r
+ sub eax, ebx\r
+ add eax, ecx\r
+ mov edx, [esp] ; copy pushed register's value to permanent memory\r
+ mov [eax], edx\r
+ mov edx, [esp + 4]\r
+ mov [eax + 4], edx\r
+ mov edx, [esp + 8]\r
+ mov [eax + 8], edx\r
+ mov edx, [esp + 12]\r
+ mov [eax + 12], edx\r
+ mov edx, [esp + 16] ; Update return address into permanent memory\r
+ mov [eax + 16], edx\r
+ mov esp, eax ; From now, esp is pointed to permanent memory\r
+\r
+ ;\r
+ ; Fixup the ebp point to permenent memory\r
+ ;\r
+ mov eax, ebp\r
+ sub eax, ebx\r
+ add eax, ecx\r
+ mov ebp, eax ; From now, ebp is pointed to permanent memory\r
+\r
+ pop edx\r
+ pop ecx\r
+ pop ebx\r
+ pop eax\r
+ ret\r
## @file\r
# This is the first module taking control from the coreboot.\r
#\r
-# Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>\r
+# Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.<BR>\r
#\r
# This program and the accompanying materials\r
# are licensed and made available under the terms and conditions of the BSD License\r
FindPeiCore.c\r
\r
[Sources.IA32]\r
- Ia32/Stack.asm | MSFT\r
- Ia32/Stack.S | GCC\r
- Ia32/SecEntry.asm | MSFT\r
- Ia32/SecEntry.S | GCC\r
+ Ia32/Stack.nasm\r
+ Ia32/SecEntry.nasm\r
\r
[Packages]\r
MdePkg/MdePkg.dec\r