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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Devices/EFI/Firmware/UefiCpuPkg/SecCore/Ia32 | |
parent | Initial commit. (diff) | |
download | virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/UefiCpuPkg/SecCore/Ia32')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/UefiCpuPkg/SecCore/Ia32/ResetVec.nasmb | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/SecCore/Ia32/ResetVec.nasmb b/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/SecCore/Ia32/ResetVec.nasmb new file mode 100644 index 00000000..1d2203de --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/SecCore/Ia32/ResetVec.nasmb @@ -0,0 +1,114 @@ +;------------------------------------------------------------------------------ +; +; Copyright (c) 2014, Intel Corporation. All rights reserved.<BR> +; SPDX-License-Identifier: BSD-2-Clause-Patent +; +; Module Name: +; +; ResetVec.nasmb +; +; Abstract: +; +; Reset Vector Data structure +; This structure is located at 0xFFFFF000 +; +;------------------------------------------------------------------------------ + +; .stack 0x0 +; SECTION .text +USE16 + +; +; The layout of this file is fixed. The build tool makes assumption of the layout. +; + + ORG 0h + +; +; 0xFFFFF000 +; +; We enter here with CS:IP = 0xFF00:0x0000. Do a far-jump to change CS to 0xF000 +; and IP to ApStartup. +; +ApVector: + mov di, "AP" + jmp 0xF000:0xF000+ApStartup + + TIMES 0xFC0-($-$$) nop + +; +; This should be at 0xFFFFFFC0 +; + +; +; Reserved +; +ReservedData: DD 0eeeeeeeeh, 0eeeeeeeeh + + TIMES 0xFD0-($-$$) nop +; +; This is located at 0xFFFFFFD0 +; + mov di, "PA" + jmp ApStartup + + TIMES 0xFE0-($-$$) nop +; +; Pointer to the entry point of the PEI core +; It is located at 0xFFFFFFE0, and is fixed up by some build tool +; So if the value 8..1 appears in the final FD image, tool failure occurs. +; +PeiCoreEntryPoint: DD 87654321h + +; +; This is the handler for all kinds of exceptions. Since it's for debugging +; purpose only, nothing except a dead loop would be done here. Developers could +; analyze the cause of the exception if a debugger had been attached. +; +global ASM_PFX(InterruptHandler) +ASM_PFX(InterruptHandler): + jmp $ + iret + + TIMES 0xFF0-($-$$) nop +; +; For IA32, the reset vector must be at 0xFFFFFFF0, i.e., 4G-16 byte +; Execution starts here upon power-on/platform-reset. +; +ResetHandler: + nop + nop +ApStartup: + ; + ; Jmp Rel16 instruction + ; Use machine code directly in case of the assembler optimization + ; SEC entry point relative address will be fixed up by some build tool. + ; + ; Typically, SEC entry point is the function _ModuleEntryPoint() defined in + ; SecEntry.asm + ; + DB 0e9h + DW -3 + + + TIMES 0xFF8-($-$$) nop +; +; Ap reset vector segment address is at 0xFFFFFFF8 +; This will be fixed up by some build tool, +; so if the value 1..8 appears in the final FD image, +; tool failure occurs +; +ApSegAddress: dd 12345678h + + TIMES 0xFFC-($-$$) nop +; +; BFV Base is at 0xFFFFFFFC +; This will be fixed up by some build tool, +; so if the value 1..8 appears in the final FD image, +; tool failure occurs. +; +BfvBase: DD 12345678h + +; +; Nothing can go here, otherwise the layout of this file would change. +; |