WebSVN – Kolibri OS – Blame – /kernel/trunk/bootloader/uefi4kos/uefi32kos.asm

Rev	Author	Line No.	Line
8150	dunkaist	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
		3	;; Copyright (C) KolibriOS team 2020. All rights reserved. ;;
		4	;; Distributed under terms of the GNU General Public License ;;
		5	;; Version 2, or (at your option) any later version. ;;
		6	;; ;;
		7	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		8
		9	format pe efi
		10	entry main
		11
		12	section '.text' code executable readable
		13
		14	include '../../struct.inc'
		15	include '../../macros.inc'
		16	include '../../proc32.inc'
		17	include '../../const.inc'
		18	include 'uefi32.inc'
		19
		20	MEMORY_MAP_SIZE = 0x4000
		21	GOP_BUFFER_SIZE = 0x100
		22	LIP_BUFFER_SIZE = 0x100
		23	FILE_BUFFER_SIZE = 0x1000
		24
		25	KERNEL_BASE = 0x10000
		26	RAMDISK_BASE = 0x100000
8284	dunkaist	27	MAX_FILE_SIZE = 0x10000000
8150	dunkaist	28
		29	CODE_32_SELECTOR = 8
		30	DATA_32_SELECTOR = 16
		31
		32	; linux/arch/x86/include/uapi/asm/e820.h
		33	E820_RAM = 1
		34	E820_RESERVED = 2
		35	E820_ACPI = 3
		36	E820_NVS = 4
		37	E820_UNUSABLE = 5
		38	E820_PMEM = 7
		39
		40	proc load_file stdcall uses ebx esi edi, _root, _name, _buffer, _size, _fatal
		41	mov eax, [_root]
		42	ccall [eax+EFI_FILE_PROTOCOL.Open], eax, file_handle, [_name], \
		43	EFI_FILE_MODE_READ, 0
		44	test eax, eax
		45	jz @f
		46	xor eax, eax
		47	cmp [_fatal], 1
		48	jnz .done
		49	mov ebx, [efi_table]
		50	mov ebx, [ebx+EFI_SYSTEM_TABLE.ConOut]
		51	ccall [ebx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], ebx, \
		52	msg_error_open_file
		53	ccall [ebx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], ebx, \
		54	[_name]
		55	jmp $
		56	@@:
		57	mov eax, [file_handle]
		58	lea ecx, [_size]
		59	ccall [eax+EFI_FILE_PROTOCOL.Read], eax, ecx, [_buffer]
		60	mov eax, [file_handle]
		61	ccall [eax+EFI_FILE_PROTOCOL.Close], eax
		62	mov eax, [_size]
		63	.done:
		64	ret
		65	endp
		66
		67	proc skip_whitespace
		68	.next_char:
		69	cmp byte[esi], 0
		70	jz .done
		71	cmp byte[esi], 0x20 ; ' '
		72	jz .whitespace
		73	cmp byte[esi], 9 ; '\t'
		74	jz .whitespace
		75	jmp .done
		76	.whitespace:
		77	inc esi
		78	jmp .next_char
		79	.done:
		80	ret
		81	endp
		82
		83	proc skip_until_newline
		84	.next_char:
		85	cmp byte[esi], 0
		86	jz .done
		87	cmp byte[esi], 0xd ; '\r'
		88	jz .done
		89	cmp byte[esi], 0xa ; '\n'
		90	jz .done
		91	inc esi
		92	jmp .next_char
		93	.done:
		94	ret
		95	endp
		96
		97	proc skip_newline
		98	.next_char:
		99	cmp byte[esi], 0xd ; '\r'
		100	jz .newline
		101	cmp byte[esi], 0xa ; '\n'
		102	jz .newline
		103	jmp .done
		104	.newline:
		105	inc esi
		106	jmp .next_char
		107	.done:
		108	ret
		109	endp
		110
		111	proc skip_line
		112	call skip_until_newline
		113	call skip_newline
		114	ret
		115	endp
		116
		117	proc dec2bin
		118	mov edx, 0
		119	.next_char:
		120	movzx eax, byte[esi]
		121	test eax, eax
		122	jz .done
		123	sub eax, '0'
		124	jb .done
		125	cmp eax, 9
		126	ja .done
		127	inc esi
		128	imul edx, 10
		129	add edx, eax
		130	jmp .next_char
		131	.done:
		132	mov eax, edx
		133	ret
		134	endp
		135
		136	proc parse_option
		137	mov ebx, config_options-3*4
		138	.try_next_option:
		139	add ebx, 3*4
		140	mov edi, esi
		141	mov edx, [ebx] ; option name
		142	test edx, edx
		143	jz .done
		144	.next_char:
		145	cmp byte[edx], 0
		146	jnz @f
		147	cmp byte[edi], '='
		148	jz .opt_name_ok
		149	@@:
		150	cmp byte[edi], 0
		151	jz .done
		152	movzx eax, byte[edi]
		153	cmp [edx], al
		154	jnz .try_next_option
		155	inc edi
		156	inc edx
		157	jmp .next_char
		158	.opt_name_ok:
		159	inc edi
		160	mov esi, edi
		161	call dword[ebx+4]
		162	.done:
		163	ret
		164	endp
		165
		166	proc parse_line
		167	.next_line:
		168	cmp byte[esi], 0
		169	jz .done
		170	cmp byte[esi], 0xd ; '\r'
		171	jz .skip
		172	cmp byte[esi], 0xa ; '\n'
		173	jz .skip
		174	cmp byte[esi], '#'
		175	jz .skip
		176	call parse_option
		177	call skip_line
		178	jmp .next_line
		179	.skip:
		180	call skip_line
		181	jmp .next_line
		182	.done:
		183	ret
		184	endp
		185
		186	proc cfg_opt_func_resolution
		187	call dec2bin
		188	xor edx, edx
		189	mov [edx+BOOT_LO.x_res], ax
		190	cmp byte[esi], 'x'
		191	jz @f
		192	cmp byte[esi], '*'
		193	jz @f
		194	jmp .done
		195	@@:
		196	inc esi
		197	call dec2bin
		198	xor edx, edx
		199	mov [edx+BOOT_LO.y_res], ax
		200	mov [cfg_opt_used_resolution], 1
		201	.done:
		202	ret
		203	endp
		204
		205	proc cfg_opt_func_acpi
		206	call dec2bin
		207	mov [cfg_opt_used_acpi], 1
		208	mov [cfg_opt_value_acpi], al
		209	ret
		210	endp
		211
		212	proc cfg_opt_func_debug_print
		213	call dec2bin
		214	mov [cfg_opt_used_debug_print], 1
		215	mov [cfg_opt_value_debug_print], al
		216	ret
		217	endp
		218
		219	proc cfg_opt_func_launcher_start
		220	call dec2bin
		221	mov [cfg_opt_used_launcher_start], 1
		222	mov [cfg_opt_value_launcher_start], al
		223	ret
		224	endp
		225
		226	proc cfg_opt_func_mtrr
		227	call dec2bin
		228	mov [cfg_opt_used_mtrr], 1
		229	mov [cfg_opt_value_mtrr], al
		230	ret
		231	endp
		232
		233	proc cfg_opt_func_ask_params
		234	call dec2bin
		235	mov [cfg_opt_used_ask_params], 1
		236	mov [cfg_opt_value_ask_params], al
		237	ret
		238	endp
		239
		240	proc cfg_opt_func_imgfrom
		241	call dec2bin
		242	mov [cfg_opt_used_imgfrom], 1
		243	mov [cfg_opt_value_imgfrom], al
		244	ret
		245	endp
		246
		247	proc cfg_opt_func_syspath
		248	mov edi, cfg_opt_value_syspath
		249	.next_char:
		250	movzx eax, byte[esi]
		251	cmp al, 0xd ; \r
		252	jz .done
		253	cmp al, 0xa ; \n
		254	jz .done
		255	inc esi
		256	stosb
		257	jmp .next_char
		258	.done:
		259	mov byte[edi], 0
		260	ret
		261	endp
		262
		263	proc parse_config stdcall uses ebx esi edi, _buffer
		264	; mov esi, [_buffer]
		265	mov esi, KERNEL_BASE
		266	.next_line:
		267	call parse_line
		268	cmp byte[esi], 0
		269	jnz .next_line
		270	ret
		271	endp
		272
		273	proc read_options_from_config stdcall uses ebx esi edi
		274	mov ebx, [efi_table]
		275	mov ebx, [ebx+EFI_SYSTEM_TABLE.BootServices]
		276	ccall [ebx+EFI_BOOT_SERVICES.HandleProtocol], [efi_handle], \
		277	lipuuid, lip_interface
		278	test eax, eax
		279	jnz .error
		280	mov eax, [lip_interface]
		281
		282	mov ebx, [efi_table]
		283	mov ebx, [ebx+EFI_SYSTEM_TABLE.BootServices]
		284	ccall [ebx+EFI_BOOT_SERVICES.HandleProtocol], \
		285	[eax+EFI_LOADED_IMAGE_PROTOCOL.DeviceHandle], sfspguid, \
		286	sfsp_interface
		287	test eax, eax
		288	jnz .error
		289
		290	mov eax, [sfsp_interface]
		291	ccall [eax+EFI_SIMPLE_FILE_SYSTEM_PROTOCOL.OpenVolume], eax, esp_root
		292	test eax, eax
		293	jnz .error
		294
		295	stdcall load_file, [esp_root], file_name, KERNEL_BASE, \
		296	FILE_BUFFER_SIZE, 0
		297	test eax, eax
		298	jz @f
		299	stdcall parse_config, KERNEL_BASE
		300	@@:
		301	.error:
		302	ret
		303	endp
		304
		305	proc print_vmode uses eax ebx ecx esi edi, _gop_if
		306	mov ebx, [_gop_if]
		307	call clearbuf
		308	mov eax, [ebx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
		309	mov edi, msg
		310	call num2dec
		311	mov eax, [ebx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
		312	mov edi, msg+8*2
		313	call num2dec
		314
		315	mov eax, [ebx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelFormat]
		316	mov edi, msg+16*2
		317	call num2dec
		318
		319	mov eax, [ebx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelsPerScanLine]
		320	mov edi, msg+24*2
		321	call num2dec
		322	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		323	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		324	ret
		325	endp
		326
		327	proc find_vmode_index_by_resolution uses ebx esi edi
		328	mov [cfg_opt_value_vmode], 0
		329	.next_mode:
		330	; mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		331	; ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		332	; msg_query_vmode
		333
		334	movzx ecx, [cfg_opt_value_vmode]
		335	mov eax, [gop_interface]
		336	ccall [eax+EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode], eax, ecx, \
		337	gop_info_size, gop_info
		338	test eax, eax
		339	jz @f
		340	call clearbuf
		341	mov edi, msg
		342	call num2hex
		343	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		344	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		345	jmp .skip_mode
		346	@@:
		347	mov ecx, [gop_info]
		348	stdcall print_vmode, ecx
		349	; PixelBlueGreenRedReserved8BitPerColor
		350	cmp [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelFormat], 1
		351	jnz .skip_mode
		352	xor edx, edx
		353	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
		354	cmp ax, [edx+BOOT_LO.x_res]
		355	jnz .skip_mode
		356	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
		357	cmp ax, [edx+BOOT_LO.y_res]
		358	jnz .skip_mode
		359	jmp .done
		360	.skip_mode:
		361	inc [cfg_opt_value_vmode]
		362	movzx eax, [cfg_opt_value_vmode]
		363	mov ecx, [gop_interface]
		364	mov edx, [ecx+EFI_GRAPHICS_OUTPUT_PROTOCOL.Mode]
		365	cmp eax, [edx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.MaxMode]
		366	jnz .next_mode
		367	mov [cfg_opt_used_resolution], 0
		368	mov [cfg_opt_value_ask_params], 1
		369
		370	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		371	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		372	msg_error_no_such_vmode
		373	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		374	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg_error
		375	jmp $
		376	.error:
		377	.done:
		378	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		379	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		380	msg_vmode_found
		381	ret
		382	endp
		383
		384	proc ask_for_params
		385	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		386	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		387	msg_ask_for_params
		388	jmp $
		389	.error:
		390	.done:
		391	ret
		392	endp
		393
		394	main:
		395	mov esi, [esp+4]
		396	mov [efi_handle], esi
		397	mov esi, [esp+8]
		398	mov [efi_table], esi
		399
		400	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		401	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.Reset], eax, 1
		402	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		403	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		404	msg_u4k_loaded
		405
		406	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		407	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		408	msg_read_options
		409	call read_options_from_config
		410
		411	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		412	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		413	msg_load_kernel
8284	dunkaist	414	stdcall load_file, [esp_root], kernel_name, KERNEL_BASE, MAX_FILE_SIZE, 1
8150	dunkaist	415
		416	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		417	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		418	msg_load_ramdisk
8284	dunkaist	419	stdcall load_file, [esp_root], ramdisk_name, RAMDISK_BASE, MAX_FILE_SIZE, 1
8150	dunkaist	420
		421	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		422	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		423	msg_alloc_devicesdat
		424
		425	mov eax, [esi+EFI_SYSTEM_TABLE.BootServices]
		426	ccall [eax+EFI_BOOT_SERVICES.AllocatePages], \
		427	EFI_ALLOCATE_MAX_ADDRESS, EFI_RESERVED_MEMORY_TYPE, 1, \
		428	devicesdat_data
8220	dunkaist	429	call halt_on_error
8150	dunkaist	430
		431	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		432	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		433	msg_load_devicesdat
		434
		435	ccall load_file, [esp_root], devicesdat_name, [devicesdat_data], \
		436	[devicesdat_size], 0
		437	mov [devicesdat_size], eax
		438
		439	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		440	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		441	msg_locate_gop_handlers
		442
		443	mov eax, [esi+EFI_SYSTEM_TABLE.BootServices]
		444	ccall [eax+EFI_BOOT_SERVICES.LocateHandle], \
		445	EFI_LOCATE_SEARCH_TYPE.ByProtocol, gopuuid, 0, \
		446	gop_buffer_size, gop_buffer
		447	mov [status], eax
		448
		449	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		450	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		451	msg_gop_buffer_size
		452	call clearbuf
		453	mov eax, [gop_buffer_size]
		454	mov edi, msg
		455	call num2hex
		456	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		457	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		458
		459	mov eax, [status]
8220	dunkaist	460	call halt_on_error
8150	dunkaist	461
		462	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		463	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		464	msg_look_for_gop_handler
		465
		466	mov ebx, gop_buffer
		467	.next_gop_handle:
		468	mov eax, ebx
		469	sub eax, gop_buffer
		470	cmp eax, [gop_buffer_size]
		471	jb @f
		472	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		473	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		474	msg_error_out_of_handlers
		475	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		476	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg_error
		477	jmp $
		478	@@:
		479	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		480	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		481	msg_query_handler
		482
		483	mov eax, [esi+EFI_SYSTEM_TABLE.BootServices]
		484	ccall [eax+EFI_BOOT_SERVICES.HandleProtocol], \
		485	[ebx], gopuuid, gop_interface
		486	;mov eax, 0x80000003
		487	test eax, eax
		488	jz @f
		489	call clearbuf
		490	mov edi, msg
		491	call num2hex
		492	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		493	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		494
		495	add ebx, 4
		496	jmp .next_gop_handle
		497	@@:
		498
8220	dunkaist	499	call find_rsdp
8150	dunkaist	500
		501	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		502	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		503	msg_acpi_tables_done
		504
		505	cmp [cfg_opt_used_resolution], 0
		506	jz .not_used_resolution
		507	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		508	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		509	msg_opt_resolution
		510	call clearbuf
		511	xor edx, edx
		512	movzx eax, [edx+BOOT_LO.x_res]
		513	mov edi, msg
		514	call num2dec
		515	xor edx, edx
		516	movzx eax, [edx+BOOT_LO.y_res]
		517	mov edi, msg+8*2
		518	call num2dec
		519	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		520	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		521
		522	call find_vmode_index_by_resolution
		523	.not_used_resolution:
		524	cmp [cfg_opt_used_debug_print], 0
		525	jz .not_used_debug_print
		526	movzx eax, [cfg_opt_value_debug_print]
		527	xor edx, edx
		528	mov [edx+BOOT_LO.debug_print], al
		529	.not_used_debug_print:
		530
		531	cmp [cfg_opt_value_ask_params], 0
		532	jz @f
		533	call ask_for_params
		534	@@:
		535
		536	movzx ecx, [cfg_opt_value_vmode]
		537	mov eax, [gop_interface]
		538	ccall [eax+EFI_GRAPHICS_OUTPUT_PROTOCOL.SetMode], eax, ecx
8220	dunkaist	539	call halt_on_error
8150	dunkaist	540
		541	mov ecx, [gop_interface]
		542	mov edx, [ecx+EFI_GRAPHICS_OUTPUT_PROTOCOL.Mode]
		543	mov edi, [edx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.FrameBufferBase.lo]
		544	mov [fb_base], edi
		545
		546
		547	mov ebx, [edx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.Mode]
		548	mov eax, [gop_interface]
		549	ccall [eax+EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode], eax, ebx, \
		550	gop_info_size, gop_info
		551	test eax, eax
		552	jnz .error
		553	mov ecx, [gop_info]
		554	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
		555	xor edx, edx
		556	mov [edx+BOOT_LO.x_res], ax
		557	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
		558	mov [edx+BOOT_LO.y_res], ax
		559	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelsPerScanLine]
		560	shl eax, 2
		561	mov [edx+BOOT_LO.pitch], ax
		562
		563	mov byte[edx+BOOT_LO.pci_data+0], 1 ; PCI access mechanism
		564	mov byte[edx+BOOT_LO.pci_data+1], 8 ; last bus, don't know how to count them
		565	mov byte[edx+BOOT_LO.pci_data+2], 0x10 ; PCI version
		566	mov byte[edx+BOOT_LO.pci_data+3], 0x02
		567	mov dword[edx+BOOT_LO.pci_data+4], 0xe3
		568
		569	; kernel
		570	; eficall BootServices, AllocatePages, EFI_RESERVED_MEMORY_TYPE, \
		571	; 450000/0x1000, EFI_ALLOCATE_ADDRESS
		572
		573	; ramdisk
		574	; eficall BootServices, AllocatePages, EFI_RESERVED_MEMORY_TYPE, \
		575	; 2880*512/0x1000, EFI_ALLOCATE_ADDRESS
		576
8220	dunkaist	577	call calc_memmap
		578	; call dump_memmap
		579
8150	dunkaist	580	mov eax, [efi_table]
		581	mov eax, [eax+EFI_SYSTEM_TABLE.BootServices]
		582	ccall [eax+EFI_BOOT_SERVICES.ExitBootServices], [efi_handle], \
		583	[memory_map_key]
8220	dunkaist	584	call halt_on_error
8150	dunkaist	585
		586	cli
		587
		588	xor edx, edx
		589	xor esi, esi
		590	mov [esi+BOOT_LO.bpp], 32
		591	mov [esi+BOOT_LO.vesa_mode], dx
		592	mov [esi+BOOT_LO.bank_switch], edx
		593	mov edi, [fb_base]
		594	mov [esi+BOOT_LO.lfb], edi
		595
		596	movzx eax, [cfg_opt_value_mtrr]
		597	mov [esi+BOOT_LO.mtrr], al
		598
		599	movzx eax, [cfg_opt_value_launcher_start]
		600	mov [esi+BOOT_LO.launcher_start], al
		601
		602	movzx eax, [cfg_opt_value_debug_print]
		603	mov [esi+BOOT_LO.debug_print], al
		604
		605	mov [esi+BOOT_LO.dma], dl
		606	; mov qword[esi+BOOT_LO.pci_data], 0
		607	mov [esi+BOOT_LO.apm_entry], edx
		608	mov [esi+BOOT_LO.apm_version], dx
		609	mov [esi+BOOT_LO.apm_flags], dx
		610	mov [esi+BOOT_LO.apm_code_32], dx
		611	mov [esi+BOOT_LO.apm_code_16], dx
		612	mov [esi+BOOT_LO.apm_data_16], dx
		613	mov [esi+BOOT_LO.bios_hd_cnt], dl
		614
		615	movzx eax, [cfg_opt_value_imgfrom]
		616	mov [esi+BOOT_LO.rd_load_from], al
		617
		618	mov eax, dword[devicesdat_size]
		619	mov [edx+BOOT_LO.devicesdat_size], eax
		620	mov eax, dword[devicesdat_data]
		621	mov [edx+BOOT_LO.devicesdat_data], eax
		622
		623	mov esi, cfg_opt_value_syspath
		624	mov edi, BOOT_LO.syspath
		625	mov ecx, 0x17
		626	rep movsb
		627
		628	lgdt [cs:GDTR]
		629
		630	mov ax, DATA_32_SELECTOR
		631	mov ds, ax
		632	mov es, ax
		633	mov fs, ax
		634	mov gs, ax
		635	mov ss, ax
		636
		637	push CODE_32_SELECTOR
		638	lea eax, [.next]
		639	push eax
		640	retf
		641
		642	.next:
		643	mov eax, cr0
		644	and eax, not CR0_PG
		645	mov cr0, eax
		646
		647	mov eax, cr4
		648	and eax, not CR4_PAE
		649	mov cr4, eax
		650
		651	push KERNEL_BASE
		652	retn
		653
		654	.error:
		655	mov esi, [efi_table]
		656	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		657	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		658	msg_error
		659	jmp $
		660
8220	dunkaist	661	halt_on_error:
		662	test eax, eax
		663	jz @f
		664	call clearbuf
		665	mov edi, msg
		666	call num2hex
		667	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		668	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		669	msg_error
		670	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		671	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		672	jmp $
		673	@@:
		674	ret
		675
		676	proc find_rsdp
		677	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		678	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		679	msg_look_for_rsdp
		680
		681	mov edi, [esi+EFI_SYSTEM_TABLE.ConfigurationTable]
		682	mov ecx, [esi+EFI_SYSTEM_TABLE.NumberOfTableEntries]
		683	.next_table:
		684	dec ecx
		685	js .all_tables_done
		686	; EFI_ACPI_TABLE_GUID
		687	cmp dword[edi+EFI_CONFIGURATION_TABLE.VendorGUID+0x0], 0x8868e871
		688	jnz .not_acpi20
		689	cmp dword[edi+EFI_CONFIGURATION_TABLE.VendorGUID+0x4], 0x11d3e4f1
		690	jnz .not_acpi20
		691	cmp dword[edi+EFI_CONFIGURATION_TABLE.VendorGUID+0x8], 0x800022bc
		692	jnz .not_acpi20
		693	cmp dword[edi+EFI_CONFIGURATION_TABLE.VendorGUID+0xc], 0x81883cc7
		694	jnz .not_acpi20
		695	mov eax, [edi+EFI_CONFIGURATION_TABLE.VendorTable]
		696	mov edx, BOOT_LO.acpi_rsdp
		697	mov [edx], eax
		698	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		699	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		700	msg_rsdp_found
		701	jmp .all_tables_done
		702	.not_acpi20:
		703	add edi, sizeof.EFI_CONFIGURATION_TABLE
		704	jmp .next_table
		705	.all_tables_done:
		706	ret
		707	endp
		708
		709	proc calc_memmap
		710	mov eax, [esi+EFI_SYSTEM_TABLE.BootServices]
		711	ccall [eax+EFI_BOOT_SERVICES.AllocatePages], EFI_ALLOCATE_ANY_PAGES, \
		712	EFI_RESERVED_MEMORY_TYPE, MEMORY_MAP_SIZE/0x1000, memory_map
		713	call halt_on_error
		714
		715	mov eax, [esi+EFI_SYSTEM_TABLE.BootServices]
		716	ccall [eax+EFI_BOOT_SERVICES.GetMemoryMap], memory_map_size, \
		717	[memory_map], memory_map_key, descriptor_size, descriptor_ver
		718	call halt_on_error
		719
		720	push esi
		721	mov edi, BOOT_LO.memmap_blocks
		722	mov dword[edi-4], 0 ; memmap_block_cnt
		723	mov esi, [memory_map]
		724	mov ebx, esi
		725	add ebx, [memory_map_size]
		726	.next_descr:
		727	call add_uefi_memmap
		728	add esi, [descriptor_size]
		729	cmp esi, ebx
		730	jb .next_descr
		731	pop esi
		732	ret
		733	endp
		734
8150	dunkaist	735	; linux/arch/x86/platform/efi/efi.c
		736	; do_add_efi_memmap
		737	proc add_uefi_memmap
8220	dunkaist	738	cmp [BOOT_LO.memmap_block_cnt], MAX_MEMMAP_BLOCKS
		739	jz .done
8150	dunkaist	740
8220	dunkaist	741	mov eax, [esi+EFI_MEMORY_DESCRIPTOR.PhysicalStart.lo]
		742	mov edx, [esi+EFI_MEMORY_DESCRIPTOR.PhysicalStart.hi]
		743	mov [edi+e820entry.addr.lo], eax
		744	mov [edi+e820entry.addr.hi], edx
8150	dunkaist	745
8220	dunkaist	746	mov eax, [esi+EFI_MEMORY_DESCRIPTOR.NumberOfPages.lo]
		747	mov edx, [esi+EFI_MEMORY_DESCRIPTOR.NumberOfPages.hi]
		748	shld edx, eax, 12
8150	dunkaist	749	shl eax, 12
8220	dunkaist	750	mov [edi+e820entry.size.lo], eax
		751	mov [edi+e820entry.size.hi], edx
8150	dunkaist	752
8220	dunkaist	753	mov ecx, [esi+EFI_MEMORY_DESCRIPTOR.Type]
		754	cmp ecx, EFI_LOADER_CODE
		755	jz .mem_ram_if_wb
		756	cmp ecx, EFI_LOADER_DATA
		757	jz .mem_ram_if_wb
		758	cmp ecx, EFI_BOOT_SERVICES_CODE
		759	jz .mem_ram_if_wb
		760	cmp ecx, EFI_BOOT_SERVICES_DATA
		761	jz .mem_ram_if_wb
		762	cmp ecx, EFI_CONVENTIONAL_MEMORY
		763	jz .mem_ram_if_wb
		764	cmp ecx, EFI_ACPI_RECLAIM_MEMORY
8150	dunkaist	765	mov eax, E820_ACPI
8220	dunkaist	766	jz .type_done
		767	cmp ecx, EFI_ACPI_MEMORY_NVS
8150	dunkaist	768	mov eax, E820_NVS
8220	dunkaist	769	jz .type_done
		770	cmp ecx, EFI_UNUSABLE_MEMORY
8150	dunkaist	771	mov eax, E820_UNUSABLE
8220	dunkaist	772	jz .type_done
		773	cmp ecx, EFI_PERSISTENT_MEMORY
8150	dunkaist	774	mov eax, E820_PMEM
8220	dunkaist	775	jz .type_done
		776	jmp .reserved
		777	.mem_ram_if_wb:
		778	test [esi+EFI_MEMORY_DESCRIPTOR.Attribute.lo], EFI_MEMORY_WB
		779	mov eax, E820_RAM
		780	jnz .type_done
		781	.reserved:
8150	dunkaist	782	mov eax, E820_RESERVED
8220	dunkaist	783	.type_done:
		784	mov [edi+e820entry.type], eax
		785	cmp eax, E820_RAM
		786	jnz @f
		787	inc [BOOT_LO.memmap_block_cnt]
		788	add edi, sizeof.e820entry
		789	@@:
8150	dunkaist	790	.done:
		791	ret
		792	endp
		793
		794
		795	proc num2dec
		796	pushad
		797
		798	xor ecx, ecx
		799	mov ebx, 10
		800	.next_digit:
		801	xor edx, edx
		802	div ebx
		803	push edx
		804	inc ecx
		805	test eax, eax
		806	jnz .next_digit
		807
		808	.next_char:
		809	pop eax
		810	add eax, '0'
		811	stosw
		812	loop .next_char
		813
		814	popad
		815	ret
		816	endp
		817
		818
		819	proc num2hex
		820	pushad
		821
		822	xchg edx, eax
		823	mov ecx, 8
		824	.next_tetra:
		825	rol edx, 4
		826	movzx eax, dl
		827	and eax, 0x0f
		828	movzx eax, byte[hex+eax]
		829	stosw
		830	loop .next_tetra
		831
		832	popad
		833	ret
		834	endp
		835
		836
		837	hex db '0123456789ABCDEF'
		838
		839	proc clearbuf
		840	pushad
		841	mov eax, 0x0020
		842	mov ecx, 79
		843	mov edi, msg
		844	rep stosw
		845	popad
		846	ret
		847	endp
		848
8284	dunkaist	849	section '.rodata' data readable
		850	align 16
8150	dunkaist	851	GDTR:
		852	dw 3*8-1
		853	dq GDT
8284	dunkaist	854	align 16
8150	dunkaist	855	GDT:
		856	dw 0, 0, 0, 0
		857	dw 0FFFFh,0,9A00h,0CFh ; 32-bit code
		858	dw 0FFFFh,0,9200h,0CFh ; flat data
		859
		860	gopuuid db EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID
		861	lipuuid db EFI_LOADED_IMAGE_PROTOCOL_GUID
		862	sfspguid db EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID
		863
		864	file_name du "\EFI\KOLIBRIOS\KOLIBRI.INI",0
		865	kernel_name du "\EFI\KOLIBRIOS\KOLIBRI.KRN",0
		866	ramdisk_name du "\EFI\KOLIBRIOS\KOLIBRI.IMG",0
		867	devicesdat_name du "\EFI\KOLIBRIOS\DEVICES.DAT",0
		868
		869	config_options dd cfg_opt_name_resolution, cfg_opt_func_resolution, \
		870	cfg_opt_cmnt_resolution, \
		871	cfg_opt_name_acpi, cfg_opt_func_acpi, cfg_opt_cmnt_acpi, \
		872	cfg_opt_name_debug_print, cfg_opt_func_debug_print, \
		873	cfg_opt_cmnt_debug_print, \
		874	cfg_opt_name_launcher_start, cfg_opt_func_launcher_start, \
		875	cfg_opt_cmnt_launcher_start, \
		876	cfg_opt_name_mtrr, cfg_opt_func_mtrr, cfg_opt_cmnt_mtrr, \
		877	cfg_opt_name_ask_params, cfg_opt_func_ask_params, \
		878	cfg_opt_cmnt_ask_params, \
		879	cfg_opt_name_imgfrom, cfg_opt_func_imgfrom, \
		880	cfg_opt_cmnt_imgfrom, \
		881	cfg_opt_name_syspath, cfg_opt_func_syspath, \
		882	cfg_opt_cmnt_syspath, \
		883
		884
		885	cfg_opt_name_resolution db "resolution",0
		886	cfg_opt_name_acpi db "acpi",0
		887	cfg_opt_name_debug_print db "debug_print",0
		888	cfg_opt_name_launcher_start db "launcher_start",0
		889	cfg_opt_name_mtrr db "mtrr",0
		890	cfg_opt_name_ask_params db "ask_params",0
		891	cfg_opt_name_imgfrom db "imgfrom",0
		892	cfg_opt_name_syspath db "syspath",0
		893
		894	cfg_opt_cmnt_resolution db "# Graphic mode",0
		895	cfg_opt_cmnt_acpi db "# ACPI settings",0xa, \
		896	"# 0: don't use",0xa, \
		897	"# 1: parse ACPI tables",0xa, \
		898	"# 2: + call _PIC method",0xa, \
		899	"# 3: + get APIC interrupts",0xa,0
		900	cfg_opt_cmnt_debug_print db "# Duplicate debug output to the screen",0
		901	cfg_opt_cmnt_launcher_start db "# Start LAUNCHER app after kernel is loaded",0
		902	cfg_opt_cmnt_mtrr db "# Configure MTRR's",0
		903	cfg_opt_cmnt_ask_params db "# Interrupt booting to ask the user for boot", \
		904	" params",0
		905	cfg_opt_cmnt_imgfrom db "# Where to load ramdisk image from",0
		906	cfg_opt_cmnt_syspath db "# Path to /sys directory",0
		907
		908	msg_u4k_loaded du "uefi32kos loaded",13,10,0
		909	msg_read_options du "Read options from config file",13,10,0
		910	msg_load_kernel du "Load kernel",13,10,0
		911	msg_load_ramdisk du "Load ramdisk",13,10,0
		912	msg_load_devicesdat du "Load DEVICES.DAT",13,10,0
		913	msg_alloc_devicesdat du "Allocate memory for DEVICES.DAT",13,10,0
		914	msg_locate_gop_handlers du "Locate GOP handlers",13,10,0
		915	msg_look_for_gop_handler du "Look for GOP handler",13,10,0
		916	msg_query_handler du "Query handler",13,10,0
		917	msg_query_vmode du "Query vmode",13,10,0
		918	msg_vmode_found du "Video mode found",13,10,0
		919	msg_look_for_rsdp du "Look for RSDP",13,10,0
		920	msg_rsdp_found du "RSDP found",13,10,0
		921	msg_acpi_tables_done du "ACPI tables done",13,10,0
		922	msg_ask_for_params du "Ask for params",13,10,0
		923	msg_set_graphic_mode du "Set graphic mode",13,10,0
		924	msg_success du "Success!",13,10,0
		925	msg_gop_buffer_size du "GOP buffer size",13,10,0
		926	msg_opt_resolution du "option resolution: ",0
		927	msg_error du "Error!",13,10,0
		928	msg_error_no_such_vmode du "No such vmode",13,10,0
		929	msg_error_out_of_handlers du "Out of handlers",13,10,0
		930	msg_error_open_file du "Error: can't open file ",0
		931	msg du 79 dup " ",13,10,0
		932
8284	dunkaist	933
		934	section '.data' data readable writeable
		935	efi_handle dd 0
		936	efi_table dd 0
		937
		938	fb_base dd 0
		939
		940	gop_buffer_size dd GOP_BUFFER_SIZE
		941	gop_handle dd 0
		942	gop_interface dd 0
		943	gop_info_size dd 0
		944	gop_info dd 0
		945
		946	lip_buffer_size dd LIP_BUFFER_SIZE
		947	lip_handle dd 0
		948	lip_interface dd 0
		949
		950	sfsp_interface dd 0
		951
		952	esp_root dd ?
		953	file_handle dd ?
		954	file_buffer_size dd FILE_BUFFER_SIZE-1 ; leave the last byte for \0
		955
		956	cfg_opt_used_resolution db 0
		957	cfg_opt_used_acpi db 0
		958	cfg_opt_used_debug_print db 0
		959	cfg_opt_used_launcher_start db 0
		960	cfg_opt_used_mtrr db 0
		961	cfg_opt_used_ask_params db 0
		962	cfg_opt_used_imgfrom db 0
		963	cfg_opt_used_syspath db 0
		964
		965	cfg_opt_value_vmode db 0
		966	cfg_opt_value_acpi db 0
		967	cfg_opt_value_debug_print db 0
		968	cfg_opt_value_launcher_start db 1
		969	cfg_opt_value_mtrr db 0
		970	cfg_opt_value_ask_params db 0
		971	cfg_opt_value_imgfrom db RD_LOAD_FROM_MEMORY
		972	cfg_opt_value_syspath db "/RD/1",0
		973	rb 20
		974
		975	memory_map_key dd 0
		976	descriptor_size dd 0
		977	descriptor_ver dd 0
		978	memory_map_size dd MEMORY_MAP_SIZE
		979
8150	dunkaist	980	efi_fs_info_id db EFI_FILE_SYSTEM_INFO_ID
		981	efi_fs_info_size dq sizeof.EFI_FILE_SYSTEM_INFO
		982	efi_fs_info EFI_FILE_SYSTEM_INFO
		983
		984	memory_map dd ?
		985	gop_buffer rd GOP_BUFFER_SIZE/4
		986	devicesdat_data dd 0xffffffff
		987	devicesdat_size dd 0x1000
		988	status dd ?
		989
		990	section '.reloc' fixups data discardable

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(root)/kernel/trunk/bootloader/uefi4kos/uefi32kos.asm – Rev 8284