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
		27
		28	CODE_32_SELECTOR = 8
		29	DATA_32_SELECTOR = 16
		30
		31	; linux/arch/x86/include/uapi/asm/e820.h
		32	E820_RAM = 1
		33	E820_RESERVED = 2
		34	E820_ACPI = 3
		35	E820_NVS = 4
		36	E820_UNUSABLE = 5
		37	E820_PMEM = 7
		38
		39	proc load_file stdcall uses ebx esi edi, _root, _name, _buffer, _size, _fatal
		40	mov eax, [_root]
		41	ccall [eax+EFI_FILE_PROTOCOL.Open], eax, file_handle, [_name], \
		42	EFI_FILE_MODE_READ, 0
		43	test eax, eax
		44	jz @f
		45	xor eax, eax
		46	cmp [_fatal], 1
		47	jnz .done
		48	mov ebx, [efi_table]
		49	mov ebx, [ebx+EFI_SYSTEM_TABLE.ConOut]
		50	ccall [ebx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], ebx, \
		51	msg_error_open_file
		52	ccall [ebx+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], ebx, \
		53	[_name]
		54	jmp $
		55	@@:
		56	mov eax, [file_handle]
		57	lea ecx, [_size]
		58	ccall [eax+EFI_FILE_PROTOCOL.Read], eax, ecx, [_buffer]
		59	mov eax, [file_handle]
		60	ccall [eax+EFI_FILE_PROTOCOL.Close], eax
		61	mov eax, [_size]
		62	.done:
		63	ret
		64	endp
		65
		66	proc skip_whitespace
		67	.next_char:
		68	cmp byte[esi], 0
		69	jz .done
		70	cmp byte[esi], 0x20 ; ' '
		71	jz .whitespace
		72	cmp byte[esi], 9 ; '\t'
		73	jz .whitespace
		74	jmp .done
		75	.whitespace:
		76	inc esi
		77	jmp .next_char
		78	.done:
		79	ret
		80	endp
		81
		82	proc skip_until_newline
		83	.next_char:
		84	cmp byte[esi], 0
		85	jz .done
		86	cmp byte[esi], 0xd ; '\r'
		87	jz .done
		88	cmp byte[esi], 0xa ; '\n'
		89	jz .done
		90	inc esi
		91	jmp .next_char
		92	.done:
		93	ret
		94	endp
		95
		96	proc skip_newline
		97	.next_char:
		98	cmp byte[esi], 0xd ; '\r'
		99	jz .newline
		100	cmp byte[esi], 0xa ; '\n'
		101	jz .newline
		102	jmp .done
		103	.newline:
		104	inc esi
		105	jmp .next_char
		106	.done:
		107	ret
		108	endp
		109
		110	proc skip_line
		111	call skip_until_newline
		112	call skip_newline
		113	ret
		114	endp
		115
		116	proc dec2bin
		117	mov edx, 0
		118	.next_char:
		119	movzx eax, byte[esi]
		120	test eax, eax
		121	jz .done
		122	sub eax, '0'
		123	jb .done
		124	cmp eax, 9
		125	ja .done
		126	inc esi
		127	imul edx, 10
		128	add edx, eax
		129	jmp .next_char
		130	.done:
		131	mov eax, edx
		132	ret
		133	endp
		134
		135	proc parse_option
		136	mov ebx, config_options-3*4
		137	.try_next_option:
		138	add ebx, 3*4
		139	mov edi, esi
		140	mov edx, [ebx] ; option name
		141	test edx, edx
		142	jz .done
		143	.next_char:
		144	cmp byte[edx], 0
		145	jnz @f
		146	cmp byte[edi], '='
		147	jz .opt_name_ok
		148	@@:
		149	cmp byte[edi], 0
		150	jz .done
		151	movzx eax, byte[edi]
		152	cmp [edx], al
		153	jnz .try_next_option
		154	inc edi
		155	inc edx
		156	jmp .next_char
		157	.opt_name_ok:
		158	inc edi
		159	mov esi, edi
		160	call dword[ebx+4]
		161	.done:
		162	ret
		163	endp
		164
		165	proc parse_line
		166	.next_line:
		167	cmp byte[esi], 0
		168	jz .done
		169	cmp byte[esi], 0xd ; '\r'
		170	jz .skip
		171	cmp byte[esi], 0xa ; '\n'
		172	jz .skip
		173	cmp byte[esi], '#'
		174	jz .skip
		175	call parse_option
		176	call skip_line
		177	jmp .next_line
		178	.skip:
		179	call skip_line
		180	jmp .next_line
		181	.done:
		182	ret
		183	endp
		184
		185	proc cfg_opt_func_resolution
		186	call dec2bin
		187	xor edx, edx
		188	mov [edx+BOOT_LO.x_res], ax
		189	cmp byte[esi], 'x'
		190	jz @f
		191	cmp byte[esi], '*'
		192	jz @f
		193	jmp .done
		194	@@:
		195	inc esi
		196	call dec2bin
		197	xor edx, edx
		198	mov [edx+BOOT_LO.y_res], ax
		199	mov [cfg_opt_used_resolution], 1
		200	.done:
		201	ret
		202	endp
		203
		204	proc cfg_opt_func_acpi
		205	call dec2bin
		206	mov [cfg_opt_used_acpi], 1
		207	mov [cfg_opt_value_acpi], al
		208	ret
		209	endp
		210
		211	proc cfg_opt_func_debug_print
		212	call dec2bin
		213	mov [cfg_opt_used_debug_print], 1
		214	mov [cfg_opt_value_debug_print], al
		215	ret
		216	endp
		217
		218	proc cfg_opt_func_launcher_start
		219	call dec2bin
		220	mov [cfg_opt_used_launcher_start], 1
		221	mov [cfg_opt_value_launcher_start], al
		222	ret
		223	endp
		224
		225	proc cfg_opt_func_mtrr
		226	call dec2bin
		227	mov [cfg_opt_used_mtrr], 1
		228	mov [cfg_opt_value_mtrr], al
		229	ret
		230	endp
		231
		232	proc cfg_opt_func_ask_params
		233	call dec2bin
		234	mov [cfg_opt_used_ask_params], 1
		235	mov [cfg_opt_value_ask_params], al
		236	ret
		237	endp
		238
		239	proc cfg_opt_func_imgfrom
		240	call dec2bin
		241	mov [cfg_opt_used_imgfrom], 1
		242	mov [cfg_opt_value_imgfrom], al
		243	ret
		244	endp
		245
		246	proc cfg_opt_func_syspath
		247	mov edi, cfg_opt_value_syspath
		248	.next_char:
		249	movzx eax, byte[esi]
		250	cmp al, 0xd ; \r
		251	jz .done
		252	cmp al, 0xa ; \n
		253	jz .done
		254	inc esi
		255	stosb
		256	jmp .next_char
		257	.done:
		258	mov byte[edi], 0
		259	ret
		260	endp
		261
		262	proc parse_config stdcall uses ebx esi edi, _buffer
		263	; mov esi, [_buffer]
		264	mov esi, KERNEL_BASE
		265	.next_line:
		266	call parse_line
		267	cmp byte[esi], 0
		268	jnz .next_line
		269	ret
		270	endp
		271
		272	proc read_options_from_config stdcall uses ebx esi edi
		273	mov ebx, [efi_table]
		274	mov ebx, [ebx+EFI_SYSTEM_TABLE.BootServices]
		275	ccall [ebx+EFI_BOOT_SERVICES.HandleProtocol], [efi_handle], \
		276	lipuuid, lip_interface
		277	test eax, eax
		278	jnz .error
		279	mov eax, [lip_interface]
		280
		281	mov ebx, [efi_table]
		282	mov ebx, [ebx+EFI_SYSTEM_TABLE.BootServices]
		283	ccall [ebx+EFI_BOOT_SERVICES.HandleProtocol], \
		284	[eax+EFI_LOADED_IMAGE_PROTOCOL.DeviceHandle], sfspguid, \
		285	sfsp_interface
		286	test eax, eax
		287	jnz .error
		288
		289	mov eax, [sfsp_interface]
		290	ccall [eax+EFI_SIMPLE_FILE_SYSTEM_PROTOCOL.OpenVolume], eax, esp_root
		291	test eax, eax
		292	jnz .error
		293
		294	stdcall load_file, [esp_root], file_name, KERNEL_BASE, \
		295	FILE_BUFFER_SIZE, 0
		296	test eax, eax
		297	jz @f
		298	stdcall parse_config, KERNEL_BASE
		299	@@:
		300	.error:
		301	ret
		302	endp
		303
		304	proc print_vmode uses eax ebx ecx esi edi, _gop_if
		305	mov ebx, [_gop_if]
		306	call clearbuf
		307	mov eax, [ebx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
		308	mov edi, msg
		309	call num2dec
		310	mov eax, [ebx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
		311	mov edi, msg+8*2
		312	call num2dec
		313
		314	mov eax, [ebx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelFormat]
		315	mov edi, msg+16*2
		316	call num2dec
		317
		318	mov eax, [ebx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelsPerScanLine]
		319	mov edi, msg+24*2
		320	call num2dec
		321	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		322	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		323	ret
		324	endp
		325
		326	proc find_vmode_index_by_resolution uses ebx esi edi
		327	mov [cfg_opt_value_vmode], 0
		328	.next_mode:
		329	; mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		330	; ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		331	; msg_query_vmode
		332
		333	movzx ecx, [cfg_opt_value_vmode]
		334	mov eax, [gop_interface]
		335	ccall [eax+EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode], eax, ecx, \
		336	gop_info_size, gop_info
		337	test eax, eax
		338	jz @f
		339	call clearbuf
		340	mov edi, msg
		341	call num2hex
		342	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		343	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		344	jmp .skip_mode
		345	@@:
		346	mov ecx, [gop_info]
		347	stdcall print_vmode, ecx
		348	; PixelBlueGreenRedReserved8BitPerColor
		349	cmp [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelFormat], 1
		350	jnz .skip_mode
		351	xor edx, edx
		352	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
		353	cmp ax, [edx+BOOT_LO.x_res]
		354	jnz .skip_mode
		355	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
		356	cmp ax, [edx+BOOT_LO.y_res]
		357	jnz .skip_mode
		358	jmp .done
		359	.skip_mode:
		360	inc [cfg_opt_value_vmode]
		361	movzx eax, [cfg_opt_value_vmode]
		362	mov ecx, [gop_interface]
		363	mov edx, [ecx+EFI_GRAPHICS_OUTPUT_PROTOCOL.Mode]
		364	cmp eax, [edx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.MaxMode]
		365	jnz .next_mode
		366	mov [cfg_opt_used_resolution], 0
		367	mov [cfg_opt_value_ask_params], 1
		368
		369	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		370	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		371	msg_error_no_such_vmode
		372	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		373	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg_error
		374	jmp $
		375	.error:
		376	.done:
		377	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		378	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		379	msg_vmode_found
		380	ret
		381	endp
		382
		383	proc ask_for_params
		384	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		385	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		386	msg_ask_for_params
		387	jmp $
		388	.error:
		389	.done:
		390	ret
		391	endp
		392
		393	main:
		394	mov esi, [esp+4]
		395	mov [efi_handle], esi
		396	mov esi, [esp+8]
		397	mov [efi_table], esi
		398
		399	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		400	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.Reset], eax, 1
		401	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		402	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		403	msg_u4k_loaded
		404
		405	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		406	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		407	msg_read_options
		408	call read_options_from_config
		409
		410	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		411	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		412	msg_load_kernel
		413	stdcall load_file, [esp_root], kernel_name, KERNEL_BASE, -1, 1
		414
		415	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		416	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		417	msg_load_ramdisk
		418	stdcall load_file, [esp_root], ramdisk_name, RAMDISK_BASE, -1, 1
		419
		420	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		421	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		422	msg_alloc_devicesdat
		423
		424	mov eax, [esi+EFI_SYSTEM_TABLE.BootServices]
		425	ccall [eax+EFI_BOOT_SERVICES.AllocatePages], \
		426	EFI_ALLOCATE_MAX_ADDRESS, EFI_RESERVED_MEMORY_TYPE, 1, \
		427	devicesdat_data
		428	test eax, eax
		429	jnz .error
		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]
		460	test eax, eax
		461	jz @f
		462	call clearbuf
		463	mov edi, msg
		464	call num2hex
		465	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		466	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg_error
		467	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		468	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		469	jmp $
		470	@@:
		471
		472	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		473	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		474	msg_look_for_gop_handler
		475
		476	mov ebx, gop_buffer
		477	.next_gop_handle:
		478	mov eax, ebx
		479	sub eax, gop_buffer
		480	cmp eax, [gop_buffer_size]
		481	jb @f
		482	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		483	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		484	msg_error_out_of_handlers
		485	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		486	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg_error
		487	jmp $
		488	@@:
		489	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		490	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		491	msg_query_handler
		492
		493	mov eax, [esi+EFI_SYSTEM_TABLE.BootServices]
		494	ccall [eax+EFI_BOOT_SERVICES.HandleProtocol], \
		495	[ebx], gopuuid, gop_interface
		496	;mov eax, 0x80000003
		497	test eax, eax
		498	jz @f
		499	call clearbuf
		500	mov edi, msg
		501	call num2hex
		502	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		503	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		504
		505	add ebx, 4
		506	jmp .next_gop_handle
		507	@@:
		508
		509	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		510	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		511	msg_look_for_rsdp
		512
		513	mov ebx, [efi_table]
		514	mov edi, [ebx+EFI_SYSTEM_TABLE.ConfigurationTable]
		515	mov ecx, [ebx+EFI_SYSTEM_TABLE.NumberOfTableEntries]
		516	.next_table:
		517	dec ecx
		518	js .all_tables_done
		519	; EFI_ACPI_TABLE_GUID
		520	cmp dword[edi+EFI_CONFIGURATION_TABLE.VendorGUID+0x0], 0x8868e871
		521	jnz .not_acpi20
		522	cmp dword[edi+EFI_CONFIGURATION_TABLE.VendorGUID+0x4], 0x11d3e4f1
		523	jnz .not_acpi20
		524	cmp dword[edi+EFI_CONFIGURATION_TABLE.VendorGUID+0x8], 0x800022bc
		525	jnz .not_acpi20
		526	cmp dword[edi+EFI_CONFIGURATION_TABLE.VendorGUID+0xc], 0x81883cc7
		527	jnz .not_acpi20
		528	mov eax, [edi+EFI_CONFIGURATION_TABLE.VendorTable]
		529	mov edx, BOOT_LO.acpi_rsdp
		530	mov [edx], eax
		531	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		532	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		533	msg_rsdp_found
		534	jmp .all_tables_done
		535	.not_acpi20:
		536	add edi, sizeof.EFI_CONFIGURATION_TABLE
		537	jmp .next_table
		538	.all_tables_done:
		539
		540	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		541	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		542	msg_acpi_tables_done
		543
		544	cmp [cfg_opt_used_resolution], 0
		545	jz .not_used_resolution
		546	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		547	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		548	msg_opt_resolution
		549	call clearbuf
		550	xor edx, edx
		551	movzx eax, [edx+BOOT_LO.x_res]
		552	mov edi, msg
		553	call num2dec
		554	xor edx, edx
		555	movzx eax, [edx+BOOT_LO.y_res]
		556	mov edi, msg+8*2
		557	call num2dec
		558	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		559	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		560
		561	call find_vmode_index_by_resolution
		562	.not_used_resolution:
		563	cmp [cfg_opt_used_debug_print], 0
		564	jz .not_used_debug_print
		565	movzx eax, [cfg_opt_value_debug_print]
		566	xor edx, edx
		567	mov [edx+BOOT_LO.debug_print], al
		568	.not_used_debug_print:
		569
		570	cmp [cfg_opt_value_ask_params], 0
		571	jz @f
		572	call ask_for_params
		573	@@:
		574
		575	movzx ecx, [cfg_opt_value_vmode]
		576	mov eax, [gop_interface]
		577	ccall [eax+EFI_GRAPHICS_OUTPUT_PROTOCOL.SetMode], eax, ecx
		578	test eax, eax
		579	jz @f
		580	call clearbuf
		581	mov edi, msg
		582	call num2hex
		583	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		584	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg
		585	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		586	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, msg_error
		587	jmp $
		588	@@:
		589
		590	mov ecx, [gop_interface]
		591	mov edx, [ecx+EFI_GRAPHICS_OUTPUT_PROTOCOL.Mode]
		592	mov edi, [edx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.FrameBufferBase.lo]
		593	mov [fb_base], edi
		594
		595
		596	mov ebx, [edx+EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.Mode]
		597	mov eax, [gop_interface]
		598	ccall [eax+EFI_GRAPHICS_OUTPUT_PROTOCOL.QueryMode], eax, ebx, \
		599	gop_info_size, gop_info
		600	test eax, eax
		601	jnz .error
		602	mov ecx, [gop_info]
		603	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.HorizontalResolution]
		604	xor edx, edx
		605	mov [edx+BOOT_LO.x_res], ax
		606	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.VerticalResolution]
		607	mov [edx+BOOT_LO.y_res], ax
		608	mov eax, [ecx+EFI_GRAPHICS_OUTPUT_MODE_INFORMATION.PixelsPerScanLine]
		609	shl eax, 2
		610	mov [edx+BOOT_LO.pitch], ax
		611
		612	mov byte[edx+BOOT_LO.pci_data+0], 1 ; PCI access mechanism
		613	mov byte[edx+BOOT_LO.pci_data+1], 8 ; last bus, don't know how to count them
		614	mov byte[edx+BOOT_LO.pci_data+2], 0x10 ; PCI version
		615	mov byte[edx+BOOT_LO.pci_data+3], 0x02
		616	mov dword[edx+BOOT_LO.pci_data+4], 0xe3
		617
		618
		619	mov eax, [efi_table]
		620	mov eax, [eax+EFI_SYSTEM_TABLE.BootServices]
		621	ccall [eax+EFI_BOOT_SERVICES.AllocatePages], \
		622	EFI_ALLOCATE_ANY_PAGES, EFI_RESERVED_MEMORY_TYPE, \
		623	MEMORY_MAP_SIZE/0x1000, memory_map
		624	test eax, eax
		625	jnz .error
		626
		627	mov eax, [efi_table]
		628	mov eax, [eax+EFI_SYSTEM_TABLE.BootServices]
		629	ccall [eax+EFI_BOOT_SERVICES.GetMemoryMap], memory_map_size, \
		630	[memory_map], memory_map_key, descriptor_size, descriptor_ver
		631	test eax, eax
		632	jnz .error
		633
		634	mov edi, BOOT_LO.memmap_block_cnt
		635	mov dword[edi], 0
		636	mov edi, BOOT_LO.memmap_blocks
		637	mov eax, [memory_map_size]
		638	xor edx, edx
		639	mov ecx, [descriptor_size]
		640	div ecx
		641	mov ecx, eax
8206	dunkaist	642	cmp ecx, MAX_MEMMAP_BLOCKS
		643	jbe @f
		644	mov ecx, MAX_MEMMAP_BLOCKS
		645	@@:
		646	xor eax, eax
		647	mov [eax+BOOT_LO.memmap_block_cnt], 0
8150	dunkaist	648	mov esi, [memory_map]
		649	.next_descr:
		650	call add_uefi_memmap
		651	add esi, [descriptor_size]
		652	add edi, sizeof.e820entry
		653	dec ecx
		654	jnz .next_descr
		655
		656	; kernel
		657	; eficall BootServices, AllocatePages, EFI_RESERVED_MEMORY_TYPE, \
		658	; 450000/0x1000, EFI_ALLOCATE_ADDRESS
		659
		660	; ramdisk
		661	; eficall BootServices, AllocatePages, EFI_RESERVED_MEMORY_TYPE, \
		662	; 2880*512/0x1000, EFI_ALLOCATE_ADDRESS
		663
		664	mov eax, [efi_table]
		665	mov eax, [eax+EFI_SYSTEM_TABLE.BootServices]
		666	ccall [eax+EFI_BOOT_SERVICES.ExitBootServices], [efi_handle], \
		667	[memory_map_key]
		668	test eax, eax
		669	jnz .error
		670
		671
		672	cli
		673
		674	xor edx, edx
		675	xor esi, esi
		676	mov [esi+BOOT_LO.bpp], 32
		677	mov [esi+BOOT_LO.vesa_mode], dx
		678	mov [esi+BOOT_LO.bank_switch], edx
		679	mov edi, [fb_base]
		680	mov [esi+BOOT_LO.lfb], edi
		681
		682	movzx eax, [cfg_opt_value_mtrr]
		683	mov [esi+BOOT_LO.mtrr], al
		684
		685	movzx eax, [cfg_opt_value_launcher_start]
		686	mov [esi+BOOT_LO.launcher_start], al
		687
		688	movzx eax, [cfg_opt_value_debug_print]
		689	mov [esi+BOOT_LO.debug_print], al
		690
		691	mov [esi+BOOT_LO.dma], dl
		692	; mov qword[esi+BOOT_LO.pci_data], 0
		693	mov [esi+BOOT_LO.apm_entry], edx
		694	mov [esi+BOOT_LO.apm_version], dx
		695	mov [esi+BOOT_LO.apm_flags], dx
		696	mov [esi+BOOT_LO.apm_code_32], dx
		697	mov [esi+BOOT_LO.apm_code_16], dx
		698	mov [esi+BOOT_LO.apm_data_16], dx
		699	mov [esi+BOOT_LO.bios_hd_cnt], dl
		700
		701	movzx eax, [cfg_opt_value_imgfrom]
		702	mov [esi+BOOT_LO.rd_load_from], al
		703
		704	mov eax, dword[devicesdat_size]
		705	mov [edx+BOOT_LO.devicesdat_size], eax
		706	mov eax, dword[devicesdat_data]
		707	mov [edx+BOOT_LO.devicesdat_data], eax
		708
		709	mov esi, cfg_opt_value_syspath
		710	mov edi, BOOT_LO.syspath
		711	mov ecx, 0x17
		712	rep movsb
		713
		714	lgdt [cs:GDTR]
		715
		716	mov ax, DATA_32_SELECTOR
		717	mov ds, ax
		718	mov es, ax
		719	mov fs, ax
		720	mov gs, ax
		721	mov ss, ax
		722
		723	push CODE_32_SELECTOR
		724	lea eax, [.next]
		725	push eax
		726	retf
		727
		728	.next:
		729	mov eax, cr0
		730	and eax, not CR0_PG
		731	mov cr0, eax
		732
		733	mov eax, cr4
		734	and eax, not CR4_PAE
		735	mov cr4, eax
		736
		737	push KERNEL_BASE
		738	retn
		739
		740	.error:
		741	mov esi, [efi_table]
		742	mov eax, [esi+EFI_SYSTEM_TABLE.ConOut]
		743	ccall [eax+EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.OutputString], eax, \
		744	msg_error
		745	jmp $
		746
		747	; linux/arch/x86/platform/efi/efi.c
		748	; do_add_efi_memmap
		749	proc add_uefi_memmap
		750	locals
		751	pew dd ?
		752	endl
		753	pushad
		754
		755	mov edx, [esi+EFI_MEMORY_DESCRIPTOR.Type]
		756
		757	mov eax, [esi+EFI_MEMORY_DESCRIPTOR.PhysicalStart.lo] ; FIXME hi
		758	mov [edi+e820entry.addr], eax
		759
		760	mov eax, [esi+EFI_MEMORY_DESCRIPTOR.NumberOfPages]
		761	shl eax, 12
		762	mov [edi+e820entry.size], eax
		763
		764
		765	cmp edx, EFI_LOADER_CODE
		766	jz .case0
		767	cmp edx, EFI_LOADER_DATA
		768	jz .case0
		769	cmp edx, EFI_BOOT_SERVICES_CODE
		770	jz .case0
		771	cmp edx, EFI_BOOT_SERVICES_DATA
		772	jz .case0
		773	cmp edx, EFI_CONVENTIONAL_MEMORY
		774	jz .case0
		775	cmp edx, EFI_ACPI_RECLAIM_MEMORY
		776	jz .case1
		777	cmp edx, EFI_ACPI_MEMORY_NVS
		778	jz .case2
		779	cmp edx, EFI_UNUSABLE_MEMORY
		780	jz .case3
		781	cmp edx, EFI_PERSISTENT_MEMORY
		782	jz .case4
		783	jmp .default
		784
		785	.case0:
		786	test [esi+EFI_MEMORY_DESCRIPTOR.Attribute.lo], EFI_MEMORY_WB
		787	jz @f
		788	mov eax, E820_RAM
		789	jmp .done
		790	@@:
		791	mov eax, E820_RESERVED
		792	jmp .done
		793	.case1:
		794	mov eax, E820_ACPI
		795	jmp .done
		796	.case2:
		797	mov eax, E820_NVS
		798	jmp .done
		799	.case3:
		800	mov eax, E820_UNUSABLE
		801	jmp .done
		802	.case4:
		803	mov eax, E820_PMEM
		804	jmp .done
		805	.default:
		806	mov eax, E820_RESERVED
		807	jmp .done
		808
		809	.done:
		810	mov [edi+e820entry.type], eax
		811
		812	mov eax, BOOT_LO.memmap_block_cnt
		813	inc word[eax]
		814
		815	popad
		816	ret
		817	endp
		818
		819
		820	proc num2dec
		821	pushad
		822
		823	xor ecx, ecx
		824	mov ebx, 10
		825	.next_digit:
		826	xor edx, edx
		827	div ebx
		828	push edx
		829	inc ecx
		830	test eax, eax
		831	jnz .next_digit
		832
		833	.next_char:
		834	pop eax
		835	add eax, '0'
		836	stosw
		837	loop .next_char
		838
		839	popad
		840	ret
		841	endp
		842
		843
		844	proc num2hex
		845	pushad
		846
		847	xchg edx, eax
		848	mov ecx, 8
		849	.next_tetra:
		850	rol edx, 4
		851	movzx eax, dl
		852	and eax, 0x0f
		853	movzx eax, byte[hex+eax]
		854	stosw
		855	loop .next_tetra
		856
		857	popad
		858	ret
		859	endp
		860
		861
		862	hex db '0123456789ABCDEF'
		863
		864	proc clearbuf
		865	pushad
		866	mov eax, 0x0020
		867	mov ecx, 79
		868	mov edi, msg
		869	rep stosw
		870	popad
		871	ret
		872	endp
		873
		874	section '.data' data readable writeable
		875	efi_handle dd 0
		876	efi_table dd 0
		877
		878	GDTR:
		879	dw 3*8-1
		880	dq GDT
		881	GDT:
		882	dw 0, 0, 0, 0
		883	dw 0FFFFh,0,9A00h,0CFh ; 32-bit code
		884	dw 0FFFFh,0,9200h,0CFh ; flat data
		885
		886
		887	fb_base dd 0
		888
		889	gopuuid db EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID
		890	gop_buffer_size dd GOP_BUFFER_SIZE
		891	gop_handle dd 0
		892	gop_interface dd 0
		893	gop_info_size dd 0
		894	gop_info dd 0
		895
		896	lipuuid db EFI_LOADED_IMAGE_PROTOCOL_GUID
		897	lip_buffer_size dd LIP_BUFFER_SIZE
		898	lip_handle dd 0
		899	lip_interface dd 0
		900
		901	sfspguid db EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID
		902	sfsp_interface dd 0
		903
		904	esp_root dd ?
		905	file_handle dd ?
		906	file_name du "\EFI\KOLIBRIOS\KOLIBRI.INI",0
		907	kernel_name du "\EFI\KOLIBRIOS\KOLIBRI.KRN",0
		908	ramdisk_name du "\EFI\KOLIBRIOS\KOLIBRI.IMG",0
		909	devicesdat_name du "\EFI\KOLIBRIOS\DEVICES.DAT",0
		910	file_buffer_size dd FILE_BUFFER_SIZE-1 ; leave the last byte for \0
		911
		912	config_options dd cfg_opt_name_resolution, cfg_opt_func_resolution, \
		913	cfg_opt_cmnt_resolution, \
		914	cfg_opt_name_acpi, cfg_opt_func_acpi, cfg_opt_cmnt_acpi, \
		915	cfg_opt_name_debug_print, cfg_opt_func_debug_print, \
		916	cfg_opt_cmnt_debug_print, \
		917	cfg_opt_name_launcher_start, cfg_opt_func_launcher_start, \
		918	cfg_opt_cmnt_launcher_start, \
		919	cfg_opt_name_mtrr, cfg_opt_func_mtrr, cfg_opt_cmnt_mtrr, \
		920	cfg_opt_name_ask_params, cfg_opt_func_ask_params, \
		921	cfg_opt_cmnt_ask_params, \
		922	cfg_opt_name_imgfrom, cfg_opt_func_imgfrom, \
		923	cfg_opt_cmnt_imgfrom, \
		924	cfg_opt_name_syspath, cfg_opt_func_syspath, \
		925	cfg_opt_cmnt_syspath, \
		926
		927
		928	cfg_opt_name_resolution db "resolution",0
		929	cfg_opt_name_acpi db "acpi",0
		930	cfg_opt_name_debug_print db "debug_print",0
		931	cfg_opt_name_launcher_start db "launcher_start",0
		932	cfg_opt_name_mtrr db "mtrr",0
		933	cfg_opt_name_ask_params db "ask_params",0
		934	cfg_opt_name_imgfrom db "imgfrom",0
		935	cfg_opt_name_syspath db "syspath",0
		936
		937	cfg_opt_cmnt_resolution db "# Graphic mode",0
		938	cfg_opt_cmnt_acpi db "# ACPI settings",0xa, \
		939	"# 0: don't use",0xa, \
		940	"# 1: parse ACPI tables",0xa, \
		941	"# 2: + call _PIC method",0xa, \
		942	"# 3: + get APIC interrupts",0xa,0
		943	cfg_opt_cmnt_debug_print db "# Duplicate debug output to the screen",0
		944	cfg_opt_cmnt_launcher_start db "# Start LAUNCHER app after kernel is loaded",0
		945	cfg_opt_cmnt_mtrr db "# Configure MTRR's",0
		946	cfg_opt_cmnt_ask_params db "# Interrupt booting to ask the user for boot", \
		947	" params",0
		948	cfg_opt_cmnt_imgfrom db "# Where to load ramdisk image from",0
		949	cfg_opt_cmnt_syspath db "# Path to /sys directory",0
		950
		951	cfg_opt_used_resolution db 0
		952	cfg_opt_used_acpi db 0
		953	cfg_opt_used_debug_print db 0
		954	cfg_opt_used_launcher_start db 0
		955	cfg_opt_used_mtrr db 0
		956	cfg_opt_used_ask_params db 0
		957	cfg_opt_used_imgfrom db 0
		958	cfg_opt_used_syspath db 0
		959
		960	cfg_opt_value_vmode db 0
		961	cfg_opt_value_acpi db 0
		962	cfg_opt_value_debug_print db 0
		963	cfg_opt_value_launcher_start db 1
		964	cfg_opt_value_mtrr db 0
		965	cfg_opt_value_ask_params db 0
		966	cfg_opt_value_imgfrom db RD_LOAD_FROM_MEMORY
		967	cfg_opt_value_syspath db "/RD/1",0
		968	rb 20
		969
		970	memory_map_key dd 0
		971	descriptor_size dd 0
		972	descriptor_ver dd 0
		973	memory_map_size dd MEMORY_MAP_SIZE
		974
		975	msg_u4k_loaded du "uefi32kos loaded",13,10,0
		976	msg_read_options du "Read options from config file",13,10,0
		977	msg_load_kernel du "Load kernel",13,10,0
		978	msg_load_ramdisk du "Load ramdisk",13,10,0
		979	msg_load_devicesdat du "Load DEVICES.DAT",13,10,0
		980	msg_alloc_devicesdat du "Allocate memory for DEVICES.DAT",13,10,0
		981	msg_locate_gop_handlers du "Locate GOP handlers",13,10,0
		982	msg_look_for_gop_handler du "Look for GOP handler",13,10,0
		983	msg_query_handler du "Query handler",13,10,0
		984	msg_query_vmode du "Query vmode",13,10,0
		985	msg_vmode_found du "Video mode found",13,10,0
		986	msg_look_for_rsdp du "Look for RSDP",13,10,0
		987	msg_rsdp_found du "RSDP found",13,10,0
		988	msg_acpi_tables_done du "ACPI tables done",13,10,0
		989	msg_ask_for_params du "Ask for params",13,10,0
		990	msg_set_graphic_mode du "Set graphic mode",13,10,0
		991	msg_success du "Success!",13,10,0
		992	msg_gop_buffer_size du "GOP buffer size",13,10,0
		993	msg_opt_resolution du "option resolution: ",0
		994	msg_error du "Error!",13,10,0
		995	msg_error_no_such_vmode du "No such vmode",13,10,0
		996	msg_error_out_of_handlers du "Out of handlers",13,10,0
		997	msg_error_open_file du "Error: can't open file ",0
		998	msg du 79 dup " ",13,10,0
		999
		1000	efi_fs_info_id db EFI_FILE_SYSTEM_INFO_ID
		1001	efi_fs_info_size dq sizeof.EFI_FILE_SYSTEM_INFO
		1002	efi_fs_info EFI_FILE_SYSTEM_INFO
		1003
		1004	memory_map dd ?
		1005	gop_buffer rd GOP_BUFFER_SIZE/4
		1006	devicesdat_data dd 0xffffffff
		1007	devicesdat_size dd 0x1000
		1008	status dd ?
		1009
		1010	section '.reloc' fixups data discardable

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(root)/kernel/trunk/bootloader/uefi4kos/uefi32kos.asm @ 8865 – Rev 8206