4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; Main routine of the pre-SEC code up through the jump into SEC
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; Copyright (c) 2008 - 2009, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; Modified: EBX, ECX, EDX, EBP
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; @param[in,out] RAX/EAX Initial value of the EAX register
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; (BIST: Built-in Self Test)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; @param[in,out] DI 'BP': boot-strap processor, or
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; 'AP': application processor
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; @param[out] RBP/EBP Address of Boot Firmware Volume (BFV)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; @return None This routine jumps to SEC and does not return
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OneTimeCall EarlyInit16
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Transition the processor from 16-bit real mode to 32-bit flat mode
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OneTimeCall TransitionFromReal16To32BitFlat
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Search for the Boot Firmware Volume (BFV)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OneTimeCall Flat32SearchForBfvBase
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; EBP - Start of BFV
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Search for the SEC entry point
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OneTimeCall Flat32SearchForSecEntryPoint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; ESI - SEC Core entry point
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; EBP - Start of BFV
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync%ifdef ARCH_IA32
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Restore initial EAX value into the EAX register
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov eax, esp
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Jump to the 32-bit SEC entry point
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Transition the processor from 32-bit flat mode to 64-bit flat mode
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OneTimeCall Transition32FlatTo64Flat
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Some values were calculated in 32-bit mode. Make sure the upper
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; 32-bits of 64-bit registers are zero for these values.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov rax, 0x00000000ffffffff
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync and rsi, rax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync and rbp, rax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync and rsp, rax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; RSI - SEC Core entry point
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; RBP - Start of BFV
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Restore initial EAX value into the RAX register
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov rax, rsp
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ; Jump to the 64-bit SEC entry point