883 lines
24 KiB
NASM
883 lines
24 KiB
NASM
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format pe64 dll 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 '../../const.inc'
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include 'uefi.inc'
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MEMORY_MAP_SIZE = 0x4000
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GOP_BUFFER_SIZE = 0x100
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LIP_BUFFER_SIZE = 0x100
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FILE_BUFFER_SIZE = 0x1000
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KERNEL_BASE = 0x10000
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RAMDISK_BASE = 0x100000
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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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load_file:
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virtual at rsp+8
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.root dq ?
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.name dq ?
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.buffer dq ?
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.size dq ?
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.fatal dq ?
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end virtual
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eficall [.root], EFI_FILE_PROTOCOL.Open, [.root], file_handle, \
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[.name], EFI_FILE_MODE_READ, 0
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cmp rax, EFI_SUCCESS
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jz @f
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xor eax, eax
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cmp [.fatal], 1
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jnz .done
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eficall ConOut, OutputString, ConOut, msg_error_open_file
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eficall ConOut, OutputString, ConOut, [.name]
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jmp $
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@@:
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lea rax, [.size]
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eficall [file_handle], EFI_FILE_PROTOCOL.Read, [file_handle], rax, \
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[.buffer]
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eficall [file_handle], EFI_FILE_PROTOCOL.Close, [file_handle]
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mov rax, [.size]
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.done:
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ret 8*5
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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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.done:
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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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parse_config:
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virtual at rsp+8
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.buffer dq ?
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end virtual
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; mov rsi, [.buffer]
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mov rsi, KERNEL_BASE
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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 1*8
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read_options_from_config:
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eficall BootServices, HandleProtocol, qword[efi_handler], lipuuid, \
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lip_interface
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cmp eax, EFI_SUCCESS
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jnz .error
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mov rax, [lip_interface]
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eficall BootServices, HandleProtocol, \
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[rax+EFI_LOADED_IMAGE_PROTOCOL.DeviceHandle], sfspguid, \
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sfsp_interface
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cmp rax, EFI_SUCCESS
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jnz .error
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eficall [sfsp_interface], EFI_SIMPLE_FILE_SYSTEM_PROTOCOL.OpenVolume, \
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[sfsp_interface], esp_root
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cmp rax, EFI_SUCCESS
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jnz .error
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push 0 ; not fatal, i.e. it's ok to not find this file
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push FILE_BUFFER_SIZE
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push KERNEL_BASE
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push file_name
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push [esp_root]
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call load_file
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test eax, eax
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jz @f
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push KERNEL_BASE
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call parse_config
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@@:
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.error:
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ret
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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 eax, [cfg_opt_value_vmode]
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eficall [gop_interface], EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode, \
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[gop_interface], rax, 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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; 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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.error:
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.done:
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ret
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ask_for_params:
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xor ebx, ebx
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.next_mode:
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call clearbuf
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mov eax, ebx
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lea rdi, [msg]
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call num2dec
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push rbx
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eficall [gop_interface], EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode, \
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[gop_interface], rbx, 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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; PixelBlueGreenRedReserved8BitPerColor
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cmp [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelFormat], 1
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jnz .skip
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mov eax, [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
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lea rdi, [msg+4*2]
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call num2dec
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mov eax, [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
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lea rdi, [msg+9*2]
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call num2dec
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; mov eax, [rcx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelsPerScanLine]
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; lea rdi, [msg+14*2]
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; call num2dec
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.skip:
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eficall ConOut, OutputString, ConOut, msg
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cmp rax, EFI_SUCCESS
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jnz .error
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pop rbx
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inc rbx
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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 ebx, [rdx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.MaxMode]
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jnz .next_mode
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eficall ConIn, Reset, ConIn, 1
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cmp rax, EFI_SUCCESS
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jnz .error
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xor ecx, ecx
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@@:
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push rcx
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eficall ConIn, ReadKeyStroke, ConIn, msg
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pop rcx
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mov rdx, EFI_DEVICE_ERROR
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cmp rax, rdx
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jz .error
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mov rdx, EFI_NOT_READY
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cmp rax, rdx
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jz @b
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; cmp rax, EFI_SUCCESS
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movzx eax, word[msg+2]
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;jmp .key_done
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cmp al, 0x0D
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jz .key_done
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imul ecx, 10
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sub eax, '0'
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add ecx, eax
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jmp @b
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.key_done:
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mov [cfg_opt_value_vmode], cl
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.error:
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.done:
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ret
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main:
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sub rsp, 0x38
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; initialize UEFI library
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InitializeLib
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jc .error
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|
; eficall ConOut, Reset, ConOut, 1
|
||
|
|
; cmp rax, EFI_SUCCESS
|
||
|
|
; jnz .error
|
||
|
|
|
||
|
|
eficall ConOut, ClearScreen, ConOut
|
||
|
|
cmp rax, EFI_SUCCESS
|
||
|
|
jnz .error
|
||
|
|
|
||
|
|
call read_options_from_config
|
||
|
|
|
||
|
|
; read kernel file
|
||
|
|
push 1
|
||
|
|
push -1
|
||
|
|
push KERNEL_BASE
|
||
|
|
push kernel_name
|
||
|
|
push [esp_root]
|
||
|
|
call load_file
|
||
|
|
|
||
|
|
; read ramdisk image
|
||
|
|
push 1
|
||
|
|
push -1
|
||
|
|
push RAMDISK_BASE
|
||
|
|
push ramdisk_name
|
||
|
|
push [esp_root]
|
||
|
|
call load_file
|
||
|
|
|
||
|
|
; alloc buffer for devices.dat
|
||
|
|
eficall BootServices, AllocatePages, EFI_ALLOCATE_MAX_ADDRESS, \
|
||
|
|
EFI_RESERVED_MEMORY_TYPE, 1, devicesdat_data
|
||
|
|
cmp eax, EFI_SUCCESS
|
||
|
|
jnz .error
|
||
|
|
|
||
|
|
; read devices.dat
|
||
|
|
push 0 ; not fatal
|
||
|
|
push [devicesdat_size]
|
||
|
|
push [devicesdat_data]
|
||
|
|
push devicesdat_name
|
||
|
|
push [esp_root]
|
||
|
|
call load_file
|
||
|
|
mov [devicesdat_size], rax
|
||
|
|
|
||
|
|
eficall BootServices, LocateHandle, 2, gopuuid, 0, gop_buffer_size, \
|
||
|
|
gop_buffer
|
||
|
|
cmp eax, EFI_SUCCESS
|
||
|
|
jnz .error
|
||
|
|
mov rsi, gop_buffer
|
||
|
|
lodsq
|
||
|
|
mov [gop_handle], rax
|
||
|
|
eficall BootServices, HandleProtocol, qword[gop_handle], gopuuid, \
|
||
|
|
gop_interface
|
||
|
|
cmp eax, EFI_SUCCESS
|
||
|
|
jnz .error
|
||
|
|
|
||
|
|
mov rbx, [efi_ptr]
|
||
|
|
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:
|
||
|
|
|
||
|
|
cmp [cfg_opt_used_resolution], 0
|
||
|
|
jz .not_used_resolution
|
||
|
|
call 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 ecx, [cfg_opt_value_vmode]
|
||
|
|
eficall [gop_interface], EFI_GRAPHICS_OUTPUT_PROTOCOL.SetMode, \
|
||
|
|
[gop_interface], rcx
|
||
|
|
cmp eax, EFI_SUCCESS
|
||
|
|
jnz .error
|
||
|
|
|
||
|
|
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 ebx, [rdx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.Mode]
|
||
|
|
eficall [gop_interface], EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode, \
|
||
|
|
[gop_interface], rbx, gop_info_size, gop_info
|
||
|
|
cmp rax, EFI_SUCCESS
|
||
|
|
jnz .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 byte[rdx+BOOT_LO.pci_data+0], 1 ; PCI access mechanism
|
||
|
|
mov byte[rdx+BOOT_LO.pci_data+1], 8 ; last bus, don't know how to count them
|
||
|
|
mov byte[rdx+BOOT_LO.pci_data+2], 0x10 ; PCI version
|
||
|
|
mov byte[rdx+BOOT_LO.pci_data+3], 0x02
|
||
|
|
mov dword[rdx+BOOT_LO.pci_data+4], 0xe3
|
||
|
|
|
||
|
|
|
||
|
|
eficall BootServices, AllocatePages, EFI_ALLOCATE_ANY_PAGES, \
|
||
|
|
EFI_RESERVED_MEMORY_TYPE, MEMORY_MAP_SIZE/0x1000, memory_map
|
||
|
|
cmp eax, EFI_SUCCESS
|
||
|
|
jnz .error
|
||
|
|
|
||
|
|
eficall BootServices, GetMemoryMap, memory_map_size, [memory_map], \
|
||
|
|
memory_map_key, descriptor_size, descriptor_ver
|
||
|
|
cmp eax, EFI_SUCCESS
|
||
|
|
jnz .error
|
||
|
|
|
||
|
|
mov rdi, BOOT_LO.memmap_block_cnt
|
||
|
|
mov dword[rdi], 0
|
||
|
|
mov rdi, BOOT_LO.memmap_blocks
|
||
|
|
mov rax, [memory_map_size]
|
||
|
|
xor edx, edx
|
||
|
|
mov rcx, [descriptor_size]
|
||
|
|
div ecx
|
||
|
|
mov ecx, eax
|
||
|
|
mov rsi, [memory_map]
|
||
|
|
.next_descr:
|
||
|
|
call add_uefi_memmap
|
||
|
|
add rsi, [descriptor_size]
|
||
|
|
add rdi, sizeof.e820entry
|
||
|
|
dec ecx
|
||
|
|
test ecx, ecx
|
||
|
|
jnz .next_descr
|
||
|
|
|
||
|
|
; kernel
|
||
|
|
; eficall BootServices, AllocatePages, EFI_RESERVED_MEMORY_TYPE, \
|
||
|
|
; 450000/0x1000, EFI_ALLOCATE_ADDRESS
|
||
|
|
|
||
|
|
; ramdisk
|
||
|
|
; eficall BootServices, AllocatePages, EFI_RESERVED_MEMORY_TYPE, \
|
||
|
|
; 2880*512/0x1000, EFI_ALLOCATE_ADDRESS
|
||
|
|
|
||
|
|
eficall BootServices, ExitBootServices, [efi_handler], [memory_map_key]
|
||
|
|
cmp eax, EFI_SUCCESS
|
||
|
|
jnz .error
|
||
|
|
|
||
|
|
|
||
|
|
cli
|
||
|
|
|
||
|
|
xor edx, edx
|
||
|
|
xor esi, esi
|
||
|
|
mov [esi+BOOT_LO.bpp], 32
|
||
|
|
mov [esi+BOOT_LO.vesa_mode], dx
|
||
|
|
mov [esi+BOOT_LO.bank_switch], edx
|
||
|
|
mov rdi, [fb_base]
|
||
|
|
mov [esi+BOOT_LO.lfb], edi
|
||
|
|
|
||
|
|
movzx eax, [cfg_opt_value_mtrr]
|
||
|
|
mov [esi+BOOT_LO.mtrr], al
|
||
|
|
|
||
|
|
movzx eax, [cfg_opt_value_launcher_start]
|
||
|
|
mov [esi+BOOT_LO.launcher_start], al
|
||
|
|
|
||
|
|
movzx eax, [cfg_opt_value_debug_print]
|
||
|
|
mov [esi+BOOT_LO.debug_print], al
|
||
|
|
|
||
|
|
mov [esi+BOOT_LO.dma], dl
|
||
|
|
; mov qword[esi+BOOT_LO.pci_data], 0
|
||
|
|
mov [esi+BOOT_LO.apm_entry], edx
|
||
|
|
mov [esi+BOOT_LO.apm_version], dx
|
||
|
|
mov [esi+BOOT_LO.apm_flags], dx
|
||
|
|
mov [esi+BOOT_LO.apm_code_32], dx
|
||
|
|
mov [esi+BOOT_LO.apm_code_16], dx
|
||
|
|
mov [esi+BOOT_LO.apm_data_16], dx
|
||
|
|
mov [esi+BOOT_LO.bios_hd_cnt], dl
|
||
|
|
|
||
|
|
movzx eax, [cfg_opt_value_imgfrom]
|
||
|
|
mov [esi+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
|
||
|
|
|
||
|
|
lgdt [cs:GDTR]
|
||
|
|
|
||
|
|
mov ax, DATA_32_SELECTOR
|
||
|
|
mov ds, ax
|
||
|
|
mov es, ax
|
||
|
|
mov fs, ax
|
||
|
|
mov gs, ax
|
||
|
|
mov ss, ax
|
||
|
|
|
||
|
|
push CODE_32_SELECTOR
|
||
|
|
lea rax, [.next]
|
||
|
|
push rax
|
||
|
|
; push .next
|
||
|
|
retf
|
||
|
|
use32
|
||
|
|
align 16
|
||
|
|
.next:
|
||
|
|
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
|
||
|
|
|
||
|
|
use64
|
||
|
|
.error:
|
||
|
|
eficall ConOut, OutputString, ConOut, msg_error
|
||
|
|
jmp .quit
|
||
|
|
.quit:
|
||
|
|
mov rcx, -1
|
||
|
|
loop $
|
||
|
|
|
||
|
|
|
||
|
|
; linux/arch/x86/platform/efi/efi.c
|
||
|
|
; do_add_efi_memmap
|
||
|
|
add_uefi_memmap:
|
||
|
|
push rax rbx rcx rdx rsi rdi
|
||
|
|
|
||
|
|
mov r10d, [rsi+0]
|
||
|
|
mov r11, [rsi+8]
|
||
|
|
; mov r12, [rsi+16]
|
||
|
|
mov r13, [rsi+24]
|
||
|
|
mov r14, [rsi+32]
|
||
|
|
|
||
|
|
mov [rdi+e820entry.addr], r11
|
||
|
|
mov rax, r13
|
||
|
|
shl rax, 12
|
||
|
|
mov [rdi+e820entry.size], rax
|
||
|
|
|
||
|
|
|
||
|
|
cmp r10d, EFI_LOADER_CODE
|
||
|
|
jz .case0
|
||
|
|
cmp r10d, EFI_LOADER_DATA
|
||
|
|
jz .case0
|
||
|
|
cmp r10d, EFI_BOOT_SERVICES_CODE
|
||
|
|
jz .case0
|
||
|
|
cmp r10d, EFI_BOOT_SERVICES_DATA
|
||
|
|
jz .case0
|
||
|
|
cmp r10d, EFI_CONVENTIONAL_MEMORY
|
||
|
|
jz .case0
|
||
|
|
cmp r10d, EFI_ACPI_RECLAIM_MEMORY
|
||
|
|
jz .case1
|
||
|
|
cmp r10d, EFI_ACPI_MEMORY_NVS
|
||
|
|
jz .case2
|
||
|
|
cmp r10d, EFI_UNUSABLE_MEMORY
|
||
|
|
jz .case3
|
||
|
|
cmp r10d, EFI_PERSISTENT_MEMORY
|
||
|
|
jz .case4
|
||
|
|
jmp .default
|
||
|
|
|
||
|
|
.case0:
|
||
|
|
test r14, EFI_MEMORY_WB
|
||
|
|
jz @f
|
||
|
|
mov eax, E820_RAM
|
||
|
|
jmp .done
|
||
|
|
@@:
|
||
|
|
mov eax, E820_RESERVED
|
||
|
|
jmp .done
|
||
|
|
.case1:
|
||
|
|
mov eax, E820_ACPI
|
||
|
|
jmp .done
|
||
|
|
.case2:
|
||
|
|
mov eax, E820_NVS
|
||
|
|
jmp .done
|
||
|
|
.case3:
|
||
|
|
mov eax, E820_UNUSABLE
|
||
|
|
jmp .done
|
||
|
|
.case4:
|
||
|
|
mov eax, E820_PMEM
|
||
|
|
jmp .done
|
||
|
|
.default:
|
||
|
|
mov eax, E820_RESERVED
|
||
|
|
jmp .done
|
||
|
|
|
||
|
|
.done:
|
||
|
|
mov [rdi+e820entry.type], eax
|
||
|
|
|
||
|
|
mov rax, BOOT_LO.memmap_block_cnt
|
||
|
|
inc word[rax]
|
||
|
|
|
||
|
|
pop rdi rsi rdx rcx rbx rax
|
||
|
|
ret
|
||
|
|
|
||
|
|
|
||
|
|
num2dec:
|
||
|
|
push rax rbx rcx rdx rsi 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 rsi rdx rcx rbx rax
|
||
|
|
ret
|
||
|
|
|
||
|
|
|
||
|
|
num2hex:
|
||
|
|
push rax rbx rcx rdx rsi rdi
|
||
|
|
|
||
|
|
xchg rdx, rax
|
||
|
|
mov ecx, 16
|
||
|
|
.next_tetra:
|
||
|
|
rol rdx, 4
|
||
|
|
movzx eax, dl
|
||
|
|
and eax, 0x0f
|
||
|
|
movzx eax, byte[hex+eax]
|
||
|
|
stosw
|
||
|
|
loop .next_tetra
|
||
|
|
|
||
|
|
pop rdi rsi rdx rcx rbx rax
|
||
|
|
ret
|
||
|
|
|
||
|
|
hex db '0123456789ABCDEF'
|
||
|
|
|
||
|
|
clearbuf:
|
||
|
|
push rax rbx rcx rdx rsi rdi
|
||
|
|
mov eax, 0x0020
|
||
|
|
mov ecx, 79
|
||
|
|
mov rdi, msg
|
||
|
|
rep stosw
|
||
|
|
pop rdi rsi rdx rcx rbx rax
|
||
|
|
ret
|
||
|
|
|
||
|
|
section '.data' data readable writeable
|
||
|
|
|
||
|
|
GDTR:
|
||
|
|
dw 4*8-1
|
||
|
|
dq GDT
|
||
|
|
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
|
||
|
|
|
||
|
|
|
||
|
|
fb_base dq 0
|
||
|
|
|
||
|
|
gopuuid db EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID
|
||
|
|
gop_buffer_size dq GOP_BUFFER_SIZE
|
||
|
|
gop_handle dq 0
|
||
|
|
gop_interface dq 0
|
||
|
|
gop_info_size dq 0
|
||
|
|
gop_info dq 0
|
||
|
|
|
||
|
|
lipuuid db EFI_LOADED_IMAGE_PROTOCOL_GUID
|
||
|
|
lip_buffer_size dq LIP_BUFFER_SIZE
|
||
|
|
lip_handle dq 0
|
||
|
|
lip_interface dq 0
|
||
|
|
|
||
|
|
sfspguid db EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID
|
||
|
|
sfsp_interface dq 0
|
||
|
|
|
||
|
|
esp_root dq ?
|
||
|
|
file_handle dq ?
|
||
|
|
file_name du '\EFI\BOOT\KOLIBRI.INI',0
|
||
|
|
kernel_name du '\EFI\BOOT\KOLIBRI.KRN',0
|
||
|
|
ramdisk_name du '\EFI\BOOT\KOLIBRI.IMG',0
|
||
|
|
devicesdat_name du '\EFI\BOOT\DEVICES.DAT',0
|
||
|
|
file_buffer_size dq FILE_BUFFER_SIZE-1 ; leave the last byte for \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
|
||
|
|
|
||
|
|
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 1
|
||
|
|
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
|
||
|
|
|
||
|
|
msg_success du 'Success!',13,10,0
|
||
|
|
msg_error du 'Error!',13,10,0
|
||
|
|
msg du 79 dup ' ',13,10,0
|
||
|
|
msg_error_open_file du "Error: can't open file ",0
|
||
|
|
|
||
|
|
efi_fs_info_id db EFI_FILE_SYSTEM_INFO_ID
|
||
|
|
efi_fs_info_size dq sizeof.EFI_FILE_SYSTEM_INFO
|
||
|
|
efi_fs_info EFI_FILE_SYSTEM_INFO
|
||
|
|
|
||
|
|
;section '.bss' data readable writeable
|
||
|
|
|
||
|
|
memory_map dq ?
|
||
|
|
gop_buffer rb GOP_BUFFER_SIZE
|
||
|
|
lip_buffer rb LIP_BUFFER_SIZE
|
||
|
|
devicesdat_data dq 0xffffffff
|
||
|
|
devicesdat_size dq 0x1000
|
||
|
|
|
||
|
|
section '.reloc' fixups data discardable
|