;------------------------------------------------------------------------------ ; @file ; First code executed by processor after resetting. ; ; Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.
; SPDX-License-Identifier: BSD-2-Clause-Patent ; ;------------------------------------------------------------------------------ BITS 16 ALIGN 16 ; ; Pad the image size to 4k when page tables are in VTF0 ; ; If the VTF0 image has page tables built in, then we need to make ; sure the end of VTF0 is 4k above where the page tables end. ; ; This is required so the page tables will be 4k aligned when VTF0 is ; located just below 0x100000000 (4GB) in the firmware device. ; %ifdef ALIGN_TOP_TO_4K_FOR_PAGING TIMES (0x1000 - ($ - EndOfPageTables) - 0x20) DB 0 %endif applicationProcessorEntryPoint: ; ; Application Processors entry point ; ; GenFv generates code aligned on a 4k boundary which will jump to this ; location. (0xffffffe0) This allows the Local APIC Startup IPI to be ; used to wake up the application processors. ; jmp EarlyApInitReal16 ALIGN 8 DD 0 ; ; The VTF signature ; ; VTF-0 means that the VTF (Volume Top File) code does not require ; any fixups. ; vtfSignature: DB 'V', 'T', 'F', 0 ALIGN 16 resetVector: ; ; Reset Vector ; ; This is where the processor will begin execution ; nop nop jmp EarlyBspInitReal16 ALIGN 16 fourGigabytes: