forked from KolibriOS/kolibrios
1176 lines
37 KiB
NASM
1176 lines
37 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2020-2021. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; Version 2, or (at your option) any later version. ;;
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;; ;;
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;; Written by Ivan Baravy ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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format pe64 efi
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entry main
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section '.text' code executable readable
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include '../../struct.inc'
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include '../../macros.inc'
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include '../../kglobals.inc'
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fastcall fix fstcall
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include 'proc64.inc'
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include '../../const.inc'
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purge DQ
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include 'uefi64.inc'
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MEMORY_MAP_SIZE = 0x10000
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PROTOCOL_HANDLERS_BUFFER_SIZE = 0x100
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FILE_BUFFER_SIZE = 0x1000
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KERNEL_TRAMPOLINE = 0x8f80 ; just before BOOT_LO
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KERNEL_BASE = 0x10000
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RAMDISK_BASE = 0x100000
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MAX_FILE_SIZE = 0x10000000
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CODE_32_SELECTOR = 8
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DATA_32_SELECTOR = 16
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CODE_64_SELECTOR = 24
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; linux/arch/x86/include/uapi/asm/e820.h
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E820_RAM = 1
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E820_RESERVED = 2
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E820_ACPI = 3
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E820_NVS = 4
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E820_UNUSABLE = 5
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E820_PMEM = 7
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proc load_file _root, _name, _buffer, _size, _fatal
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mov [_root], rcx
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mov [_name], rdx
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mov [_buffer], r8
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mov [_size], r9
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mov r10, [_root]
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mov r11, [_name]
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fstcall [r10+EFI_FILE_PROTOCOL.Open], r10, file_handle, \
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r11, EFI_FILE_MODE_READ, 0
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test eax, eax
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jz @f
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mov [_size], 0
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cmp [_fatal], 1
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jnz .done
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_error_open_file
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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mov rdx, [_name]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, [_name]
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jmp $
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@@:
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lea rdx, [_size]
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mov r8, [_buffer]
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mov r10, [file_handle]
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fstcall [r10+EFI_FILE_PROTOCOL.Read], [file_handle], rdx, r8
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mov r10, [file_handle]
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fstcall [r10+EFI_FILE_PROTOCOL.Close], [file_handle]
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.done:
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call clearbuf
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mov rax, [_size]
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mov rdi, msg
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call num2dec
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_file_size
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
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mov rax, [_size]
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ret
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endp
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skip_whitespace:
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.next_char:
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cmp byte[rsi], 0
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jz .done
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cmp byte[rsi], 0x20 ; ' '
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jz .whitespace
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cmp byte[rsi], 9 ; '\t'
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jz .whitespace
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jmp .done
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.whitespace:
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inc rsi
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jmp .next_char
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.done:
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ret
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skip_until_newline:
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.next_char:
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cmp byte[rsi], 0
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jz .done
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cmp byte[rsi], 0xd ; '\r'
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jz .done
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cmp byte[rsi], 0xa ; '\n'
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jz .done
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inc rsi
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jmp .next_char
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.done:
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ret
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skip_newline:
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.next_char:
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cmp byte[rsi], 0xd ; '\r'
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jz .newline
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cmp byte[rsi], 0xa ; '\n'
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jz .newline
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jmp .done
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.newline:
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inc rsi
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jmp .next_char
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.done:
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ret
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skip_line:
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call skip_until_newline
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call skip_newline
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ret
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dec2bin:
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mov edx, 0
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.next_char:
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movzx eax, byte[rsi]
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test eax, eax
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jz .done
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sub eax, '0'
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jb .done
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cmp eax, 9
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ja .done
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inc rsi
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imul edx, 10
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add edx, eax
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jmp .next_char
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.done:
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mov eax, edx
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ret
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parse_option:
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mov rbx, config_options-3*8
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.try_next_option:
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add rbx, 3*8
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mov rdi, rsi
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mov rdx, [rbx] ; option name
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test rdx, rdx
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jz .done
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.next_char:
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cmp byte[rdx], 0
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jnz @f
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cmp byte[rdi], '='
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jz .opt_name_ok
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@@:
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cmp byte[rdi], 0
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jz .done
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movzx eax, byte[rdi]
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cmp [rdx], al
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jnz .try_next_option
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inc rdi
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inc rdx
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jmp .next_char
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.opt_name_ok:
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inc rdi
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mov rsi, rdi
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call qword[rbx+8]
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.done:
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ret
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parse_line:
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.next_line:
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cmp byte[rsi], 0
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jz .done
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cmp byte[rsi], 0xd ; '\r'
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jz .skip
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cmp byte[rsi], 0xa ; '\n'
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jz .skip
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cmp byte[rsi], '#'
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jz .skip
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call parse_option
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call skip_line
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jmp .next_line
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.skip:
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call skip_line
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jmp .next_line
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.done:
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ret
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cfg_opt_func_resolution:
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call dec2bin
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xor edx, edx
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mov [rdx+BOOT_LO.x_res], ax
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cmp byte[rsi], 'x'
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jz @f
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cmp byte[rsi], '*'
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jz @f
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jmp .done
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@@:
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inc rsi
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call dec2bin
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xor edx, edx
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mov [rdx+BOOT_LO.y_res], ax
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mov [cfg_opt_used_resolution], 1
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.done:
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ret
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cfg_opt_func_acpi:
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call dec2bin
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mov [cfg_opt_used_acpi], 1
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mov [cfg_opt_value_acpi], al
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ret
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cfg_opt_func_debug_print:
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call dec2bin
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mov [cfg_opt_used_debug_print], 1
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mov [cfg_opt_value_debug_print], al
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ret
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cfg_opt_func_launcher_start:
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call dec2bin
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mov [cfg_opt_used_launcher_start], 1
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mov [cfg_opt_value_launcher_start], al
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ret
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cfg_opt_func_mtrr:
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call dec2bin
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mov [cfg_opt_used_mtrr], 1
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mov [cfg_opt_value_mtrr], al
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ret
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cfg_opt_func_ask_params:
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call dec2bin
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mov [cfg_opt_used_ask_params], 1
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mov [cfg_opt_value_ask_params], al
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ret
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cfg_opt_func_imgfrom:
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call dec2bin
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mov [cfg_opt_used_imgfrom], 1
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mov [cfg_opt_value_imgfrom], al
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ret
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cfg_opt_func_syspath:
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mov rdi, cfg_opt_value_syspath
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.next_char:
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movzx eax, byte[rsi]
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cmp al, 0xd ; \r
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jz .done
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cmp al, 0xa ; \n
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jz .done
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inc rsi
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stosb
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jmp .next_char
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.done:
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mov byte[rdi], 0
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ret
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proc parse_config uses rbx rsi rdi, _buffer
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mov rsi, rcx
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_parsing_config
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.next_line:
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call parse_line
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cmp byte[rsi], 0
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jnz .next_line
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ret
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endp
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proc read_options_from_config
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mov r10, [rbx+EFI_SYSTEM_TABLE.BootServices]
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fstcall [r10+EFI_BOOT_SERVICES.HandleProtocol], [efi_handle], \
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lip_guid, lip_interface
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test eax, eax
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jz @f
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_error_efi_lip_handle
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jmp $
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@@:
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mov r11, [lip_interface]
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mov r10, [rbx+EFI_SYSTEM_TABLE.BootServices]
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fstcall [r10+EFI_BOOT_SERVICES.HandleProtocol], \
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[r11+EFI_LOADED_IMAGE_PROTOCOL.DeviceHandle], sfsp_guid, \
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sfsp_interface
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test eax, eax
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jz @f
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_error_lip_dev_sfsp
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jmp $
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@@:
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mov r10, [sfsp_interface]
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fstcall [r10+EFI_SIMPLE_FILE_SYSTEM_PROTOCOL.OpenVolume], \
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[sfsp_interface], esp_root
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test eax, eax
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jz @f
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_error_sfsp_openvolume
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jmp $
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@@:
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fstcall load_file, [esp_root], file_name, KERNEL_BASE, \
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FILE_BUFFER_SIZE, 0 ; not fatal
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test eax, eax
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jz @f
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fstcall parse_config, KERNEL_BASE
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@@:
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.error:
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ret
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endp
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proc print_vmode uses rax rbx rcx rdx rsi rdi
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mov r10, rcx
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call clearbuf
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mov eax, [r10+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
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mov rdi, msg
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call num2dec
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mov eax, [r10+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
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mov rdi, msg+8*2
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call num2dec
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mov eax, [r10+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelFormat]
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mov rdi, msg+16*2
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call num2dec
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mov eax, [r10+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelsPerScanLine]
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mov rdi, msg+24*2
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call num2dec
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
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ret
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endp
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proc find_vmode_index_by_resolution
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mov [cfg_opt_used_resolution], 1
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mov [cfg_opt_value_vmode], 0
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.next_mode:
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movzx edx, [cfg_opt_value_vmode]
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mov r10, [gop_interface]
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fstcall [r10+EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode], [gop_interface], \
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rdx, gop_info_size, gop_info
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cmp rax, EFI_SUCCESS
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jnz .error
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mov rcx, [gop_info]
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fstcall print_vmode
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; PixelBlueGreenRedReserved8BitPerColor
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cmp [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelFormat], 1
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jnz .skip_mode
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xor edx, edx
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mov eax, [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
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cmp ax, [rdx+BOOT_LO.x_res]
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jnz .skip_mode
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mov eax, [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
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cmp ax, [rdx+BOOT_LO.y_res]
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jnz .skip_mode
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jmp .done
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.skip_mode:
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inc [cfg_opt_value_vmode]
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movzx eax, [cfg_opt_value_vmode]
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mov rcx, [gop_interface]
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mov rdx, [rcx+EFI_GRAPHICS_OUTPUT_PROTOCOL.Mode]
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cmp eax, [rdx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.MaxMode]
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jnz .next_mode
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mov [cfg_opt_used_resolution], 0
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mov [cfg_opt_value_ask_params], 1
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_error_no_such_vmode
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_error
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jmp $
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.error:
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.done:
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ret
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endp
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ask_for_params:
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jmp $
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proc detect_pci_config
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fstcall get_protocol_interface, pcirbiop_guid
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mov [pcirbiop_interface], rax
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mov r10, rax
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fstcall [r10+EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Configuration], r10, \
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pcirbiop_resources
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; fstcall dump_pci_resources
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fstcall get_last_pci_bus
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call clearbuf
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movzx eax, [pci_last_bus]
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mov rdi, msg
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call num2hex
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_pci_last_bus
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
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ret
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endp
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proc get_last_pci_bus
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mov rsi, [pcirbiop_resources]
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.next_resource:
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cmp [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.Type], \
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EFI_RESOURCE_DESCRIPTOR_TYPE.END_TAG
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jz .not_found
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mov rax, [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.RangeMaximum]
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cmp [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.ResourceType], \
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EFI_RESOURCE_TYPE.BUS
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jz .found
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movzx eax, [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.Length]
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lea rsi, [rsi+rax+3]
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jmp .next_resource
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.found:
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mov [pci_last_bus], al
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.not_found:
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ret
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endp
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proc main _efi_handle, _efi_table
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mov [efi_handle], rcx
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mov [efi_table], rdx
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mov rbx, rdx
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.Reset], rcx, 1
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test eax, eax
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jnz $ ; what can I do here?
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_u4k_loaded
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_detect_pci_config
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fstcall detect_pci_config
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_read_options
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fstcall read_options_from_config
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; read kernel file
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_load_kernel
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fstcall load_file, [esp_root], kernel_name, KERNEL_BASE, \
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MAX_FILE_SIZE, 1 ; fatal
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; read ramdisk image
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_load_ramdisk
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fstcall load_file, [esp_root], ramdisk_name, RAMDISK_BASE, \
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MAX_FILE_SIZE, 1 ; fatal
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; alloc buffer for devices.dat
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_alloc_devicesdat
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mov r10, [rbx+EFI_SYSTEM_TABLE.BootServices]
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fstcall [r10+EFI_BOOT_SERVICES.AllocatePages], \
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EFI_ALLOCATE_MAX_ADDRESS, EFI_RESERVED_MEMORY_TYPE, 1, \
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devicesdat_data
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cmp eax, EFI_SUCCESS
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jnz .error
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; read devices.dat
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_load_devicesdat
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fstcall load_file, [esp_root], devicesdat_name, [devicesdat_data], \
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[devicesdat_size], 0 ; not fatal
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mov [devicesdat_size], rax
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mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
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fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
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msg_locate_gop_interface
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fstcall get_protocol_interface, gop_guid
|
|
mov [gop_interface], rax
|
|
|
|
fstcall find_rsdp
|
|
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_acpi_tables_done
|
|
|
|
cmp [cfg_opt_used_resolution], 0
|
|
jz .not_used_resolution
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_opt_resolution
|
|
call clearbuf
|
|
xor edx, edx
|
|
movzx eax, [rdx+BOOT_LO.x_res]
|
|
mov rdi, msg
|
|
call num2dec
|
|
xor edx, edx
|
|
movzx eax, [rdx+BOOT_LO.y_res]
|
|
mov rdi, msg+8*2
|
|
call num2dec
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
fstcall find_vmode_index_by_resolution
|
|
.not_used_resolution:
|
|
cmp [cfg_opt_used_debug_print], 0
|
|
jz .not_used_debug_print
|
|
movzx eax, [cfg_opt_value_debug_print]
|
|
xor edx, edx
|
|
mov [rdx+BOOT_LO.debug_print], al
|
|
.not_used_debug_print:
|
|
|
|
cmp [cfg_opt_value_ask_params], 0
|
|
jz @f
|
|
call ask_for_params
|
|
@@:
|
|
|
|
movzx edx, [cfg_opt_value_vmode]
|
|
mov r10, [gop_interface]
|
|
fstcall [r10+EFI_GRAPHICS_OUTPUT_PROTOCOL.SetMode], [gop_interface], rdx
|
|
test eax, eax
|
|
jz @f
|
|
call clearbuf
|
|
mov rdi, msg
|
|
call num2hex
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_error
|
|
jmp $
|
|
@@:
|
|
|
|
mov rcx, [gop_interface]
|
|
mov rdx, [rcx+EFI_GRAPHICS_OUTPUT_PROTOCOL.Mode]
|
|
mov rdi, [rdx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.FrameBufferBase]
|
|
mov [fb_base], rdi
|
|
|
|
mov edx, [rdx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.Mode]
|
|
mov r10, [gop_interface]
|
|
fstcall [r10+EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode], [gop_interface], \
|
|
rdx, gop_info_size, gop_info
|
|
test eax, eax
|
|
jz @f
|
|
jmp .error
|
|
@@:
|
|
mov rcx, [gop_info]
|
|
mov eax, [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
|
|
xor rdx, rdx
|
|
mov [rdx+BOOT_LO.x_res], ax
|
|
mov eax, [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
|
|
mov [rdx+BOOT_LO.y_res], ax
|
|
mov eax, [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelsPerScanLine]
|
|
shl eax, 2
|
|
mov [rdx+BOOT_LO.pitch], ax
|
|
|
|
mov [rdx+BOOT_LO.pci_data.access_mechanism], 1
|
|
movzx eax, [pci_last_bus]
|
|
mov [rdx+BOOT_LO.pci_data.last_bus], al
|
|
mov [rdx+BOOT_LO.pci_data.version], 0x0300 ; PCI 3.0
|
|
mov [rdx+BOOT_LO.pci_data.pm_entry], 0
|
|
|
|
; kernel
|
|
; fstcall BootServices, AllocatePages, EFI_RESERVED_MEMORY_TYPE, \
|
|
; 450000/0x1000, EFI_ALLOCATE_ADDRESS
|
|
|
|
; ramdisk
|
|
; fstcall BootServices, AllocatePages, EFI_RESERVED_MEMORY_TYPE, \
|
|
; 2880*512/0x1000, EFI_ALLOCATE_ADDRESS
|
|
|
|
fstcall calc_memmap
|
|
; fstcall dump_memmap
|
|
|
|
mov r10, [rbx+EFI_SYSTEM_TABLE.BootServices]
|
|
fstcall [r10+EFI_BOOT_SERVICES.ExitBootServices], [efi_handle], \
|
|
[memory_map_key]
|
|
fstcall halt_on_error
|
|
|
|
cli
|
|
|
|
xor edx, edx
|
|
xor esi, esi
|
|
mov [rsi+BOOT_LO.bpp], 32
|
|
mov [rsi+BOOT_LO.vesa_mode], dx
|
|
mov [rsi+BOOT_LO.bank_switch], edx
|
|
mov rdi, [fb_base]
|
|
mov [rsi+BOOT_LO.lfb], edi
|
|
|
|
movzx eax, [cfg_opt_value_mtrr]
|
|
mov [rsi+BOOT_LO.mtrr], al
|
|
|
|
movzx eax, [cfg_opt_value_launcher_start]
|
|
mov [rsi+BOOT_LO.launcher_start], al
|
|
|
|
movzx eax, [cfg_opt_value_debug_print]
|
|
mov [rsi+BOOT_LO.debug_print], al
|
|
|
|
mov [rsi+BOOT_LO.dma], dl
|
|
mov [rsi+BOOT_LO.apm_entry], edx
|
|
mov [rsi+BOOT_LO.apm_version], dx
|
|
mov [rsi+BOOT_LO.apm_flags], dx
|
|
mov [rsi+BOOT_LO.apm_code_32], dx
|
|
mov [rsi+BOOT_LO.apm_code_16], dx
|
|
mov [rsi+BOOT_LO.apm_data_16], dx
|
|
mov [rsi+BOOT_LO.bios_hd_cnt], dl
|
|
|
|
movzx eax, [cfg_opt_value_imgfrom]
|
|
mov [rsi+BOOT_LO.rd_load_from], al
|
|
|
|
mov eax, dword[devicesdat_size]
|
|
mov [rdx+BOOT_LO.devicesdat_size], eax
|
|
mov eax, dword[devicesdat_data]
|
|
mov [rdx+BOOT_LO.devicesdat_data], eax
|
|
|
|
mov rsi, cfg_opt_value_syspath
|
|
mov rdi, BOOT_LO.syspath
|
|
mov ecx, 0x17
|
|
rep movsb
|
|
|
|
; kernel trampoline
|
|
mov rsi, kernel_trampoline
|
|
mov rdi, KERNEL_TRAMPOLINE
|
|
mov ecx, kernel_trampoline.size
|
|
rep movsb
|
|
|
|
mov rax, GDTR
|
|
lgdt [cs:rax]
|
|
|
|
mov ax, DATA_32_SELECTOR
|
|
mov ds, ax
|
|
mov es, ax
|
|
mov fs, ax
|
|
mov gs, ax
|
|
mov ss, ax
|
|
|
|
push CODE_32_SELECTOR
|
|
mov rax, KERNEL_TRAMPOLINE
|
|
push rax
|
|
retf
|
|
|
|
.error:
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_error
|
|
jmp $
|
|
endp
|
|
|
|
proc halt_on_error
|
|
test eax, eax
|
|
jz @f
|
|
call clearbuf
|
|
mov rdi, msg
|
|
call num2hex
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_error
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
jmp $
|
|
@@:
|
|
ret
|
|
endp
|
|
|
|
proc get_protocol_interface uses rsi rdi, _guid
|
|
locals
|
|
.status dq ?
|
|
endl
|
|
mov [_guid], rcx
|
|
mov [prot_handlers_buffer_size], PROTOCOL_HANDLERS_BUFFER_SIZE
|
|
mov r10, [rbx+EFI_SYSTEM_TABLE.BootServices]
|
|
fstcall [r10+EFI_BOOT_SERVICES.LocateHandle], \
|
|
EFI_LOCATE_SEARCH_TYPE.ByProtocol, [_guid], 0, \
|
|
prot_handlers_buffer_size, prot_handlers_buffer
|
|
mov [.status], rax
|
|
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_protocol_buffer_size
|
|
call clearbuf
|
|
mov rax, [prot_handlers_buffer_size]
|
|
mov rdi, msg
|
|
call num2hex
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
|
|
mov rax, [.status]
|
|
test eax, eax
|
|
jz @f
|
|
call clearbuf
|
|
mov rdi, msg
|
|
call num2hex
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_error
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
jmp $
|
|
@@:
|
|
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_look_for_handler
|
|
|
|
mov rsi, prot_handlers_buffer
|
|
.try_next_handle:
|
|
mov rax, rsi
|
|
mov rcx, prot_handlers_buffer
|
|
sub rax, rcx
|
|
cmp rax, [prot_handlers_buffer_size]
|
|
jb @f
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_error_out_of_handlers
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_error
|
|
jmp $
|
|
@@:
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_query_handler
|
|
|
|
mov r10, [rbx+EFI_SYSTEM_TABLE.BootServices]
|
|
fstcall [r10+EFI_BOOT_SERVICES.HandleProtocol], qword[rsi], [_guid], \
|
|
prot_interface
|
|
;mov rax, 0x8000_0000_0000_0003
|
|
test eax, eax
|
|
jz @f
|
|
call clearbuf
|
|
mov rdi, msg
|
|
call num2hex
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
|
|
add rsi, 8
|
|
jmp .try_next_handle
|
|
@@:
|
|
mov rax, [prot_interface]
|
|
ret
|
|
endp
|
|
|
|
|
|
proc find_rsdp uses rsi rdi
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_look_for_rsdp
|
|
|
|
mov rdi, [rbx+EFI_SYSTEM_TABLE.ConfigurationTable]
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.NumberOfTableEntries]
|
|
mov rax, 0x11d3e4f18868e871
|
|
mov rdx, 0x81883cc7800022bc
|
|
.next_table:
|
|
dec ecx
|
|
js .all_tables_done
|
|
cmp [rdi+0], rax
|
|
jnz .not_acpi20
|
|
cmp [rdi+8], rdx
|
|
jnz .not_acpi20
|
|
mov rax, [rdi+16]
|
|
mov rdx, BOOT_LO.acpi_rsdp
|
|
mov [rdx], eax
|
|
jmp .all_tables_done
|
|
.not_acpi20:
|
|
add rdi, 24
|
|
jmp .next_table
|
|
.all_tables_done:
|
|
ret
|
|
endp
|
|
|
|
proc dump_pci_resources uses rsi rdi
|
|
xor eax, eax
|
|
mov rsi, [pcirbiop_resources]
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_dump_pci_resources
|
|
.next_resource:
|
|
call clearbuf
|
|
movzx eax, [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.Type]
|
|
cmp eax, EFI_RESOURCE_DESCRIPTOR_TYPE.END_TAG
|
|
jz .done
|
|
mov rdi, msg
|
|
call num2hex
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
call clearbuf
|
|
movzx eax, [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.ResourceType]
|
|
mov rdi, msg
|
|
call num2dec
|
|
mov rax, [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.RangeMinimum]
|
|
mov rdi, msg+2*2
|
|
call num2hex
|
|
mov rax, [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.RangeMaximum]
|
|
mov rdi, msg+19*2
|
|
call num2hex
|
|
mov rax, [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.TranslationOffset]
|
|
mov rdi, msg+36*2
|
|
call num2hex
|
|
mov rax, [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.AddressLength]
|
|
mov rdi, msg+53*2
|
|
call num2hex
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
movzx eax, [rsi+EFI_QWORD_ADDRESS_SPACE_DESCRIPTOR.Length]
|
|
add eax, 3
|
|
add rsi, rax
|
|
jmp .next_resource
|
|
.done:
|
|
ret
|
|
endp
|
|
|
|
proc calc_memmap uses rsi rdi
|
|
mov r10, [rbx+EFI_SYSTEM_TABLE.BootServices]
|
|
fstcall [r10+EFI_BOOT_SERVICES.AllocatePages], EFI_ALLOCATE_ANY_PAGES, \
|
|
EFI_RESERVED_MEMORY_TYPE, MEMORY_MAP_SIZE/0x1000, memory_map
|
|
call halt_on_error
|
|
|
|
mov r10, [rbx+EFI_SYSTEM_TABLE.BootServices]
|
|
fstcall [r10+EFI_BOOT_SERVICES.GetMemoryMap], memory_map_size, \
|
|
[memory_map], memory_map_key, descriptor_size, descriptor_ver
|
|
call halt_on_error
|
|
|
|
mov rdi, BOOT_LO.memmap_blocks
|
|
mov dword[rdi-4], 0 ; memmap_block_cnt
|
|
mov rsi, [memory_map]
|
|
mov r10, rsi
|
|
add r10, [memory_map_size]
|
|
.next_descr:
|
|
fstcall add_uefi_memmap
|
|
add rsi, [descriptor_size]
|
|
cmp rsi, r10
|
|
jb .next_descr
|
|
ret
|
|
endp
|
|
|
|
proc dump_memmap uses rsi rdi
|
|
xor eax, eax
|
|
mov rsi, BOOT_LO.memmap_blocks
|
|
mov r12, [rax+BOOT_LO.memmap_block_cnt]
|
|
|
|
call clearbuf
|
|
mov eax, ebx
|
|
mov rdi, msg
|
|
call num2dec
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, \
|
|
msg_memmap
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
call clearbuf
|
|
.next_mapping:
|
|
dec r12d
|
|
js .done
|
|
mov rax, rsi
|
|
mov rcx, BOOT_LO.memmap_blocks
|
|
sub rax, rcx
|
|
mov ecx, sizeof.e820entry
|
|
xor edx, edx
|
|
div ecx
|
|
mov rdi, msg
|
|
call num2dec
|
|
mov rax, [rsi+e820entry.addr]
|
|
mov rdi, msg+4*2
|
|
call num2hex
|
|
mov rax, [rsi+e820entry.size]
|
|
mov rdi, msg+24*2
|
|
call num2hex
|
|
mov rcx, [rbx+EFI_SYSTEM_TABLE.ConOut]
|
|
fstcall [rcx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], rcx, msg
|
|
add rsi, sizeof.e820entry
|
|
jmp .next_mapping
|
|
.done:
|
|
ret
|
|
endp
|
|
|
|
; linux/arch/x86/platform/efi/efi.c
|
|
; do_add_efi_memmap
|
|
proc add_uefi_memmap
|
|
xor eax, eax
|
|
cmp [rax+BOOT_LO.memmap_block_cnt], MAX_MEMMAP_BLOCKS
|
|
jz .done
|
|
|
|
mov rax, [rsi+EFI_MEMORY_DESCRIPTOR.PhysicalStart]
|
|
mov [rdi+e820entry.addr], rax
|
|
|
|
mov rax, [rsi+EFI_MEMORY_DESCRIPTOR.NumberOfPages]
|
|
shl rax, 12
|
|
mov [rdi+e820entry.size], rax
|
|
|
|
mov ecx, [rsi+EFI_MEMORY_DESCRIPTOR.Type]
|
|
cmp ecx, EFI_LOADER_CODE
|
|
jz .mem_ram_if_wb
|
|
cmp ecx, EFI_LOADER_DATA
|
|
jz .mem_ram_if_wb
|
|
cmp ecx, EFI_BOOT_SERVICES_CODE
|
|
jz .mem_ram_if_wb
|
|
cmp ecx, EFI_BOOT_SERVICES_DATA
|
|
jz .mem_ram_if_wb
|
|
cmp ecx, EFI_CONVENTIONAL_MEMORY
|
|
jz .mem_ram_if_wb
|
|
cmp ecx, EFI_ACPI_RECLAIM_MEMORY
|
|
mov eax, E820_ACPI
|
|
jz .type_done
|
|
cmp ecx, EFI_ACPI_MEMORY_NVS
|
|
mov eax, E820_NVS
|
|
jz .type_done
|
|
cmp ecx, EFI_UNUSABLE_MEMORY
|
|
mov eax, E820_UNUSABLE
|
|
jz .type_done
|
|
cmp ecx, EFI_PERSISTENT_MEMORY
|
|
mov eax, E820_PMEM
|
|
jz .type_done
|
|
jmp .reserved
|
|
.mem_ram_if_wb:
|
|
test [rsi+EFI_MEMORY_DESCRIPTOR.Attribute], dword EFI_MEMORY_WB
|
|
mov eax, E820_RAM
|
|
jnz .type_done
|
|
.reserved:
|
|
mov eax, E820_RESERVED
|
|
.type_done:
|
|
mov [rdi+e820entry.type], eax
|
|
cmp eax, E820_RAM
|
|
jnz @f
|
|
xor eax, eax
|
|
inc [rax+BOOT_LO.memmap_block_cnt]
|
|
add rdi, sizeof.e820entry
|
|
@@:
|
|
.done:
|
|
ret
|
|
endp
|
|
|
|
num2dec:
|
|
push rbx rcx rdx rdi
|
|
|
|
xor ecx, ecx
|
|
mov ebx, 10
|
|
.next_digit:
|
|
xor edx, edx
|
|
div ebx
|
|
push rdx
|
|
inc ecx
|
|
test eax, eax
|
|
jnz .next_digit
|
|
|
|
.next_char:
|
|
pop rax
|
|
add eax, '0'
|
|
stosw
|
|
loop .next_char
|
|
|
|
pop rdi rdx rcx rbx
|
|
ret
|
|
|
|
|
|
num2hex:
|
|
push rbx rcx rdx rdi
|
|
|
|
xchg rdx, rax
|
|
mov ecx, 16
|
|
.next_tetra:
|
|
rol rdx, 4
|
|
movzx eax, dl
|
|
and eax, 0x0f
|
|
movzx eax, byte[hex_abc+eax]
|
|
stosw
|
|
loop .next_tetra
|
|
|
|
pop rdi rdx rcx rbx
|
|
ret
|
|
|
|
clearbuf:
|
|
push rcx rdi
|
|
mov eax, ' '
|
|
mov ecx, 79
|
|
mov rdi, msg
|
|
rep stosw
|
|
pop rdi rcx
|
|
ret
|
|
|
|
use32
|
|
kernel_trampoline:
|
|
org KERNEL_TRAMPOLINE
|
|
mov eax, cr0
|
|
and eax, not CR0_PG
|
|
mov cr0, eax
|
|
|
|
mov ecx, MSR_AMD_EFER
|
|
rdmsr
|
|
btr eax, 8 ; LME
|
|
wrmsr
|
|
|
|
mov eax, cr4
|
|
and eax, not CR4_PAE
|
|
mov cr4, eax
|
|
|
|
push KERNEL_BASE
|
|
retn
|
|
|
|
align 16
|
|
GDTR:
|
|
dw 4*8-1
|
|
dq GDT
|
|
align 16
|
|
GDT:
|
|
dw 0, 0, 0, 0
|
|
dw 0FFFFh,0,9A00h,0CFh ; 32-bit code
|
|
dw 0FFFFh,0,9200h,0CFh ; flat data
|
|
dw 0FFFFh,0,9A00h,0AFh ; 64-bit code
|
|
assert $ < BOOT_LO
|
|
kernel_trampoline.size = $ - KERNEL_TRAMPOLINE
|
|
|
|
section '.rodata' data readable
|
|
gop_guid db EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID
|
|
lip_guid db EFI_LOADED_IMAGE_PROTOCOL_GUID
|
|
sfsp_guid db EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID
|
|
pcirbiop_guid db EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_GUID
|
|
|
|
file_name du '\EFI\KOLIBRIOS\KOLIBRI.INI',0
|
|
kernel_name du '\EFI\KOLIBRIOS\KOLIBRI.KRN',0
|
|
ramdisk_name du '\EFI\KOLIBRIOS\KOLIBRI.IMG',0
|
|
devicesdat_name du '\EFI\KOLIBRIOS\DEVICES.DAT',0
|
|
|
|
config_options dq cfg_opt_name_resolution, cfg_opt_func_resolution, \
|
|
cfg_opt_cmnt_resolution, \
|
|
cfg_opt_name_acpi, cfg_opt_func_acpi, cfg_opt_cmnt_acpi, \
|
|
cfg_opt_name_debug_print, cfg_opt_func_debug_print, \
|
|
cfg_opt_cmnt_debug_print, \
|
|
cfg_opt_name_launcher_start, cfg_opt_func_launcher_start, \
|
|
cfg_opt_cmnt_launcher_start, \
|
|
cfg_opt_name_mtrr, cfg_opt_func_mtrr, cfg_opt_cmnt_mtrr, \
|
|
cfg_opt_name_ask_params, cfg_opt_func_ask_params, \
|
|
cfg_opt_cmnt_ask_params, \
|
|
cfg_opt_name_imgfrom, cfg_opt_func_imgfrom, \
|
|
cfg_opt_cmnt_imgfrom, \
|
|
cfg_opt_name_syspath, cfg_opt_func_syspath, \
|
|
cfg_opt_cmnt_syspath, \
|
|
0
|
|
|
|
cfg_opt_name_resolution db "resolution",0
|
|
cfg_opt_name_acpi db "acpi",0
|
|
cfg_opt_name_debug_print db "debug_print",0
|
|
cfg_opt_name_launcher_start db "launcher_start",0
|
|
cfg_opt_name_mtrr db "mtrr",0
|
|
cfg_opt_name_ask_params db "ask_params",0
|
|
cfg_opt_name_imgfrom db "imgfrom",0
|
|
cfg_opt_name_syspath db "syspath",0
|
|
|
|
cfg_opt_cmnt_resolution db "# Graphic mode",0
|
|
cfg_opt_cmnt_acpi db "# ACPI settings",0xa, \
|
|
"# 0: don't use",0xa, \
|
|
"# 1: parse ACPI tables",0xa, \
|
|
"# 2: + call _PIC method",0xa, \
|
|
"# 3: + get APIC interrupts",0xa,0
|
|
cfg_opt_cmnt_debug_print db "# Duplicate debug output to the screen",0
|
|
cfg_opt_cmnt_launcher_start db "# Start LAUNCHER app after kernel is loaded",0
|
|
cfg_opt_cmnt_mtrr db "# Configure MTRR's",0
|
|
cfg_opt_cmnt_ask_params db "# Interrupt booting to ask the user for boot", \
|
|
" params",0
|
|
cfg_opt_cmnt_imgfrom db "# Where to load ramdisk image from",0
|
|
cfg_opt_cmnt_syspath db "# Path to /sys directory",0
|
|
|
|
msg_u4k_loaded du "uefi64kos loaded",13,10,0
|
|
msg_detect_pci_config du "Detect PCI configuration",13,10,0
|
|
msg_dump_pci_resources du "Dump PCI resources",13,10,0
|
|
msg_pci_last_bus du "Last PCI bus",13,10,0
|
|
msg_read_options du "Read options from config file",13,10,0
|
|
msg_file_size du "File size:",13,10,0
|
|
msg_parsing_config du "Parsing config file",13,10,0
|
|
msg_load_kernel du "Load kernel",13,10,0
|
|
msg_load_ramdisk du "Load ramdisk",13,10,0
|
|
msg_load_devicesdat du "Load DEVICES.DAT",13,10,0
|
|
msg_alloc_devicesdat du "Allocate memory for DEVICES.DAT",13,10,0
|
|
msg_locate_gop_interface du "Locate GOP interface",13,10,0
|
|
msg_look_for_handler du "Look for protocol handler",13,10,0
|
|
msg_query_handler du "Query handler",13,10,0
|
|
msg_query_vmode du "Query vmode",13,10,0
|
|
msg_vmode_found du "Video mode found",13,10,0
|
|
msg_look_for_rsdp du "Look for RSDP",13,10,0
|
|
msg_rsdp_found du "RSDP found",13,10,0
|
|
msg_acpi_tables_done du "ACPI tables done",13,10,0
|
|
msg_ask_for_params du "Ask for params",13,10,0
|
|
msg_set_graphic_mode du "Set graphic mode",13,10,0
|
|
msg_success du "Success!",13,10,0
|
|
msg_protocol_buffer_size du "Protocol buffer size",13,10,0
|
|
msg_opt_resolution du "Option resolution: ",0
|
|
msg_memmap du "Memmap",13,10,0
|
|
msg_error du "Error!",13,10,0
|
|
msg_error_efi_lip_handle du "efi_handle can't handle LIP",13,10,0
|
|
msg_error_lip_dev_sfsp du "LIP device handle can't handle SFSP",13,10,0
|
|
msg_error_sfsp_openvolume du "SFSP OpenVolume failed",13,10,0
|
|
msg_error_no_such_vmode du "No such vmode",13,10,0
|
|
msg_error_out_of_handlers du "Out of handlers",13,10,0
|
|
msg_error_open_file du "Error: can't open file ",0
|
|
msg_error_exit_boot_services du "Error: Exit boot services",13,10,0
|
|
msg du 79 dup " ",13,10,0
|
|
msg_debug du "Debug ",13,10,0
|
|
|
|
section '.data' data readable writeable
|
|
efi_handle dq 0
|
|
efi_table dq 0
|
|
|
|
fb_base dq 0
|
|
|
|
gop_interface dq 0
|
|
gop_info_size dq 0
|
|
gop_info dq 0
|
|
|
|
lip_interface dq 0
|
|
|
|
sfsp_interface dq 0
|
|
|
|
pci_last_bus db 254
|
|
|
|
cfg_opt_used_resolution db 0
|
|
cfg_opt_used_acpi db 0
|
|
cfg_opt_used_debug_print db 0
|
|
cfg_opt_used_launcher_start db 0
|
|
cfg_opt_used_mtrr db 0
|
|
cfg_opt_used_ask_params db 0
|
|
cfg_opt_used_imgfrom db 0
|
|
cfg_opt_used_syspath db 0
|
|
|
|
cfg_opt_value_vmode db 0
|
|
cfg_opt_value_acpi db 0
|
|
cfg_opt_value_debug_print db 0
|
|
cfg_opt_value_launcher_start db 1
|
|
cfg_opt_value_mtrr db 0
|
|
cfg_opt_value_ask_params db 0
|
|
cfg_opt_value_imgfrom db RD_LOAD_FROM_MEMORY
|
|
cfg_opt_value_syspath db "/RD/1",0
|
|
rb 20
|
|
|
|
memory_map_key dq 0
|
|
descriptor_size dq 0
|
|
descriptor_ver dq 0
|
|
memory_map_size dq MEMORY_MAP_SIZE
|
|
|
|
efi_fs_info_id db EFI_FILE_SYSTEM_INFO_ID
|
|
efi_fs_info_size dq sizeof.EFI_FILE_SYSTEM_INFO
|
|
|
|
devicesdat_data dq 0xffffffff
|
|
devicesdat_size dq 0x1000
|
|
|
|
hex_abc db '0123456789ABCDEF'
|
|
|
|
section '.bss' data readable writeable discardable
|
|
prot_handlers_buffer_size dq ?
|
|
prot_interface dq ?
|
|
esp_root dq ?
|
|
file_handle dq ?
|
|
pcirbiop_interface dq ?
|
|
pcirbiop_resources dq ?
|
|
efi_fs_info EFI_FILE_SYSTEM_INFO
|
|
memory_map dq ?
|
|
prot_handlers_buffer rq PROTOCOL_HANDLERS_BUFFER_SIZE/8
|
|
pcirbio_buffer rq PROTOCOL_HANDLERS_BUFFER_SIZE/8
|
|
|
|
section '.reloc' fixups data discardable
|