projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 49ba9447 | 1 | ;------------------------------------------------------------------------------\r |
| 2 | ;*\r | |
| 7cb6b0e0 | 3 | ;* Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r |
| 56d7640a | 4 | ;* This program and the accompanying materials\r |
| 49ba9447 | 5 | ;* are licensed and made available under the terms and conditions of the BSD License\r |
| 6 | ;* which accompanies this distribution. The full text of the license may be found at\r | |
| 7 | ;* http://opensource.org/licenses/bsd-license.php\r | |
| 8 | ;*\r | |
| 9 | ;* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 10 | ;* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 11 | ;*\r | |
| 12 | ;* CpuAsm.asm\r | |
| 13 | ;*\r | |
| 14 | ;* Abstract:\r | |
| 15 | ;*\r | |
| 16 | ;------------------------------------------------------------------------------\r | |
| 17 | \r | |
| 42a83e80 | 18 | #include <Base.h>\r |
| 49ba9447 | 19 | \r |
| d8cfdb5f JJ |
20 | DEFAULT REL\r |
| 21 | SECTION .text\r | |
| 49ba9447 | 22 | \r |
| d8cfdb5f | 23 | extern ASM_PFX(SecCoreStartupWithStack)\r |
| 49ba9447 | 24 | \r |
| 25 | ;\r | |
| 0913fadc | 26 | ; SecCore Entry Point\r |
| 49ba9447 | 27 | ;\r |
| 0913fadc | 28 | ; Processor is in flat protected mode\r |
| 49ba9447 | 29 | ;\r |
| 0913fadc | 30 | ; @param[in] RAX Initial value of the EAX register (BIST: Built-in Self Test)\r |
| 31 | ; @param[in] DI 'BP': boot-strap processor, or 'AP': application processor\r | |
| 32 | ; @param[in] RBP Pointer to the start of the Boot Firmware Volume\r | |
| 2278b8a8 LE |
33 | ; @param[in] DS Selector allowing flat access to all addresses\r |
| 34 | ; @param[in] ES Selector allowing flat access to all addresses\r | |
| 35 | ; @param[in] FS Selector allowing flat access to all addresses\r | |
| 36 | ; @param[in] GS Selector allowing flat access to all addresses\r | |
| 37 | ; @param[in] SS Selector allowing flat access to all addresses\r | |
| 49ba9447 | 38 | ;\r |
| 0913fadc | 39 | ; @return None This routine does not return\r |
| 49ba9447 | 40 | ;\r |
| d8cfdb5f JJ |
41 | global ASM_PFX(_ModuleEntryPoint)\r |
| 42 | ASM_PFX(_ModuleEntryPoint):\r | |
| 49ba9447 | 43 | \r |
| 2278b8a8 LE |
44 | ;\r |
| 45 | ; Fill the temporary RAM with the initial stack value.\r | |
| 46 | ; The loop below will seed the heap as well, but that's harmless.\r | |
| 47 | ;\r | |
| 48 | mov rax, (FixedPcdGet32 ( \\r | |
| 49 | PcdInitValueInTempStack \\r | |
| 50 | ) << 32) | \\r | |
| 51 | FixedPcdGet32 (PcdInitValueInTempStack) ; qword to store\r | |
| 52 | mov rdi, FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) ; base address,\r | |
| 53 | ; relative to\r | |
| 54 | ; ES\r | |
| 55 | mov rcx, FixedPcdGet32 (PcdOvmfSecPeiTempRamSize) / 8 ; qword count\r | |
| 56 | cld ; store from base\r | |
| 57 | ; up\r | |
| 58 | rep stosq\r | |
| 59 | \r | |
| 49ba9447 | 60 | ;\r |
| 7cb6b0e0 | 61 | ; Load temporary RAM stack based on PCDs\r |
| 49ba9447 | 62 | ;\r |
| d8cfdb5f | 63 | %define SEC_TOP_OF_STACK (FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + \\r |
| 7cb6b0e0 JJ |
64 | FixedPcdGet32 (PcdOvmfSecPeiTempRamSize))\r |
| 65 | mov rsp, SEC_TOP_OF_STACK\r | |
| 49ba9447 | 66 | nop\r |
| 67 | \r | |
| 68 | ;\r | |
| 69 | ; Setup parameters and call SecCoreStartupWithStack\r | |
| 70 | ; rcx: BootFirmwareVolumePtr\r | |
| 0913fadc | 71 | ; rdx: TopOfCurrentStack\r |
| 49ba9447 | 72 | ;\r |
| 73 | mov rcx, rbp\r | |
| 0913fadc | 74 | mov rdx, rsp\r |
| d8cfdb5f JJ |
75 | sub rsp, 0x20\r |
| 76 | call ASM_PFX(SecCoreStartupWithStack)\r | |
| 49ba9447 | 77 | \r |