From 6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8 Mon Sep 17 00:00:00 2001 From: Guo Mang Date: Wed, 2 Aug 2017 09:54:47 +0800 Subject: Remove core packages since we can get them from edk2 repository Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Guo Mang --- DuetPkg/BootSector/Gpt.asm | 294 --------------------------------------------- 1 file changed, 294 deletions(-) delete mode 100644 DuetPkg/BootSector/Gpt.asm (limited to 'DuetPkg/BootSector/Gpt.asm') diff --git a/DuetPkg/BootSector/Gpt.asm b/DuetPkg/BootSector/Gpt.asm deleted file mode 100644 index e94075308d..0000000000 --- a/DuetPkg/BootSector/Gpt.asm +++ /dev/null @@ -1,294 +0,0 @@ -;------------------------------------------------------------------------------ -;* -;* Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.
-;* This program and the accompanying materials -;* are licensed and made available under the terms and conditions of the BSD License -;* which accompanies this distribution. The full text of the license may be found at -;* http://opensource.org/licenses/bsd-license.php -;* -;* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, -;* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. -;* -;* gpt.asm -;* -;* Abstract: -;* -;------------------------------------------------------------------------------ - - .model small -; .dosseg - .stack - .486p - .code - -BLOCK_SIZE EQU 0200h -BLOCK_MASK EQU 01ffh -BLOCK_SHIFT EQU 9 - -; **************************************************************************** -; Code loaded by BIOS at 0x0000:0x7C00 -; **************************************************************************** - - org 0h -Start: - -; **************************************************************************** -; Start Print -; **************************************************************************** - - mov ax,0b800h - mov es,ax - mov ax, 07c0h - mov ds, ax - lea si, cs:[StartString] - mov cx, 10 - mov di, 160 - rep movsw - -; **************************************************************************** -; Print over -; **************************************************************************** - -; **************************************************************************** -; Initialize segment registers and copy code at 0x0000:0x7c00 to 0x0000:0x0600 -; **************************************************************************** - xor ax, ax ; AX = 0x0000 - mov bx, 07c00h ; BX = 0x7C00 - mov bp, 0600h ; BP = 0x0600 - mov si, OFFSET RelocatedStart ; SI = Offset(RelocatedStart) - mov cx, 0200h ; CX = 0x0200 - sub cx, si ; CS = 0x0200 - Offset(RelocatedStart) - lea di, [bp+si] ; DI = 0x0600 + Offset(RelocatedStart) - lea si, [bx+si] ; BX = 0x7C00 + Offset(RelocatedStart) - mov ss, ax ; SS = 0x0000 - mov sp, bx ; SP = 0x7C00 - mov es,ax ; ES = 0x0000 - mov ds,ax ; DS = 0x0000 - push ax ; PUSH 0x0000 - push di ; PUSH 0x0600 + Offset(RelocatedStart) - cld ; Clear the direction flag - rep movsb ; Copy 0x0200 bytes from 0x7C00 to 0x0600 - retf ; JMP 0x0000:0x0600 + Offset(RelocatedStart) - -; **************************************************************************** -; Code relocated to 0x0000:0x0600 -; **************************************************************************** - -RelocatedStart: -; **************************************************************************** -; Get Driver Parameters to 0x0000:0x7BFC -; **************************************************************************** - xor ax,ax ; ax = 0 - mov ss,ax ; ss = 0 - add ax,1000h - mov ds,ax - - mov sp,07c00h ; sp = 0x7c00 - mov bp,sp ; bp = 0x7c00 - - mov ah,8 ; ah = 8 - Get Drive Parameters Function - mov byte ptr [bp+PhysicalDrive],dl ; BBS defines that BIOS would pass the booting driver number to the loader through DL - int 13h ; Get Drive Parameters - xor ax,ax ; ax = 0 - mov al,dh ; al = dh - inc al ; MaxHead = al + 1 - push ax ; 0000:7bfe = MaxHead - mov al,cl ; al = cl - and al,03fh ; MaxSector = al & 0x3f - push ax ; 0000:7bfc = MaxSector - -; **************************************************************************** -; Read GPT Header from hard disk to 0x0000:0x0800 -; **************************************************************************** - xor ax, ax - mov es, ax ; Read to 0x0000:0x0800 - mov di, 0800h ; Read to 0x0000:0x0800 - mov eax, 1 ; Read LBA #1 - mov edx, 0 ; Read LBA #1 - mov bx, 1 ; Read 1 Block - push es - call ReadBlocks - pop es - -; **************************************************************************** -; Read Target GPT Entry from hard disk to 0x0000:0x0A00 -; **************************************************************************** - cmp dword ptr es:[di], 020494645h ; Check for "EFI " - jne BadGpt - cmp dword ptr es:[di + 4], 054524150h ; Check for "PART" - jne BadGpt - cmp dword ptr es:[di + 8], 000010000h ; Check Revision - 0x10000 - jne BadGpt - - mov eax, dword ptr es:[di + 84] ; EAX = SizeOfPartitionEntry - mul byte ptr [bp+GptPartitionIndicator] ; EAX = SizeOfPartitionEntry * GptPartitionIndicator - mov edx, eax ; EDX = SizeOfPartitionEntry * GptPartitionIndicator - shr eax, BLOCK_SHIFT ; EAX = (SizeOfPartitionEntry * GptPartitionIndicator) / BLOCK_SIZE - and edx, BLOCK_MASK ; EDX = Targer PartitionEntryLBA Offset - ; = (SizeOfPartitionEntry * GptPartitionIndicator) % BLOCK_SIZE - push edx - mov ecx, dword ptr es:[di + 72] ; ECX = PartitionEntryLBA (Low) - mov ebx, dword ptr es:[di + 76] ; EBX = PartitionEntryLBA (High) - add eax, ecx ; EAX = Target PartitionEntryLBA (Low) - ; = (PartitionEntryLBA + - ; (SizeOfPartitionEntry * GptPartitionIndicator) / BLOCK_SIZE) - adc edx, ebx ; EDX = Target PartitionEntryLBA (High) - - mov di, 0A00h ; Read to 0x0000:0x0A00 - mov bx, 1 ; Read 1 Block - push es - call ReadBlocks - pop es - -; **************************************************************************** -; Read Target DBR from hard disk to 0x0000:0x7C00 -; **************************************************************************** - pop edx ; EDX = (SizeOfPartitionEntry * GptPartitionIndicator) % BLOCK_SIZE - add di, dx ; DI = Targer PartitionEntryLBA Offset - cmp dword ptr es:[di], 0C12A7328h ; Check for EFI System Partition "C12A7328-F81F-11d2-BA4B-00A0C93EC93B" - jne BadGpt - cmp dword ptr es:[di + 4], 011d2F81Fh ; - jne BadGpt - cmp dword ptr es:[di + 8], 0A0004BBAh ; - jne BadGpt - cmp dword ptr es:[di + 0ch], 03BC93EC9h ; - jne BadGpt - - mov eax, dword ptr es:[di + 32] ; EAX = StartingLBA (Low) - mov edx, dword ptr es:[di + 36] ; EDX = StartingLBA (High) - mov di, 07C00h ; Read to 0x0000:0x7C00 - mov bx, 1 ; Read 1 Block - call ReadBlocks - -; **************************************************************************** -; Transfer control to BootSector - Jump to 0x0000:0x7C00 -; **************************************************************************** - xor ax, ax - push ax ; PUSH 0x0000 - mov di, 07c00h - push di ; PUSH 0x7C00 - retf ; JMP 0x0000:0x7C00 - -; **************************************************************************** -; ReadBlocks - Reads a set of blocks from a block device -; -; EDX:EAX = Start LBA -; BX = Number of Blocks to Read (must < 127) -; ES:DI = Buffer to store sectors read from disk -; **************************************************************************** - -; si = DiskAddressPacket - -ReadBlocks: - pushad - push ds - xor cx, cx - mov ds, cx - mov bp, 0600h ; bp = 0x600 - lea si, [bp + OFFSET AddressPacket] ; DS:SI = Disk Address Packet - mov BYTE PTR ds:[si+2],bl ; 02 = Number Of Block transfered - mov WORD PTR ds:[si+4],di ; 04 = Transfer Buffer Offset - mov WORD PTR ds:[si+6],es ; 06 = Transfer Buffer Segment - mov DWORD PTR ds:[si+8],eax ; 08 = Starting LBA (Low) - mov DWORD PTR ds:[si+0ch],edx ; 0C = Starting LBA (High) - mov ah, 42h ; ah = Function 42 - mov dl,byte ptr [bp+PhysicalDrive] ; dl = Drive Number - int 13h - jc BadGpt - pop ds - popad - ret - -; **************************************************************************** -; Address Packet used by ReadBlocks -; **************************************************************************** -AddressPacket: - db 10h ; Size of address packet - db 00h ; Reserved. Must be 0 - db 01h ; Read blocks at a time (To be fixed each times) - db 00h ; Reserved. Must be 0 - dw 0000h ; Destination Address offset (To be fixed each times) - dw 0000h ; Destination Address segment (To be fixed each times) -AddressPacketLba: - dd 0h, 0h ; Start LBA (To be fixed each times) -AddressPacketEnd: - -; **************************************************************************** -; ERROR Condition: -; **************************************************************************** - -BadGpt: - mov ax,0b800h - mov es,ax - mov ax, 060h - mov ds, ax - lea si, cs:[ErrorString] - mov cx, 10 - mov di, 320 - rep movsw -Halt: - jmp Halt - -StartString: - db 'G', 0ch, 'P', 0ch, 'T', 0ch, ' ', 0ch, 'S', 0ch, 't', 0ch, 'a', 0ch, 'r', 0ch, 't', 0ch, '!', 0ch -ErrorString: - db 'G', 0ch, 'P', 0ch, 'T', 0ch, ' ', 0ch, 'E', 0ch, 'r', 0ch, 'r', 0ch, 'o', 0ch, 'r', 0ch, '!', 0ch - -; **************************************************************************** -; PhysicalDrive - Used to indicate which disk to be boot -; Can be patched by tool -; **************************************************************************** - org 01B6h -PhysicalDrive db 80h - -; **************************************************************************** -; GptPartitionIndicator - Used to indicate which GPT partition to be boot -; Can be patched by tool -; **************************************************************************** - org 01B7h -GptPartitionIndicator db 0 - -; **************************************************************************** -; Unique MBR signature -; **************************************************************************** - org 01B8h - db 'DUET' - -; **************************************************************************** -; Unknown -; **************************************************************************** - org 01BCh - dw 0 - -; **************************************************************************** -; PMBR Entry - Can be patched by tool -; **************************************************************************** - org 01BEh - db 0 ; Boot Indicator - db 0ffh ; Start Header - db 0ffh ; Start Sector - db 0ffh ; Start Track - db 0eeh ; OS Type - db 0ffh ; End Header - db 0ffh ; End Sector - db 0ffh ; End Track - dd 1 ; Starting LBA - dd 0FFFFFFFFh ; End LBA - - org 01CEh - dd 0, 0, 0, 0 - org 01DEh - dd 0, 0, 0, 0 - org 01EEh - dd 0, 0, 0, 0 - -; **************************************************************************** -; Sector Signature -; **************************************************************************** - - org 01FEh -SectorSignature: - dw 0aa55h ; Boot Sector Signature - - end - -- cgit v1.2.3