VirKato-dev/kolibrios64
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kolibrios64/kernel/boot/bootx64.asm

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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2025-2025. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License v2 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
format pe64 efi
entry main
section '.text' code executable readable
include '../struct.inc'
; include '../macros.inc'
; include '../kglobals.inc'
fastcall fix fstcall
include '../proc64.inc'
include '../const.inc'
purge DQ ; because of some struct DQ in const.inc
include 'uefi64.inc'
MEMORY_MAP_SIZE = 0x10000
; linux/arch/x86/include/uapi/asm/e820.h
E820_RAM = 1
E820_RESERVED = 2
E820_ACPI = 3
E820_NVS = 4
E820_UNUSABLE = 5
E820_PMEM = 7
include 'uefi_prints.inc'
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
proc main _efi_handle, _efi_table
mov [efi_handle], rcx
mov [efi_table], rdx
mov rbx, rdx
; reset the console
mov rax, [rbx + EFI_SYSTEM_TABLE.ConOut]
fstcall [rax + EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.Reset], rax, 1
test eax, eax
jnz $ ; loop if fail to init text
; disable the default watchdog timer, otherwise it will reboot the pc after 5 mins of this app work
mov rax, [rbx + EFI_SYSTEM_TABLE.BootServices]
fstcall [rax + EFI_BOOT_SERVICES.SetWatchdogTimer], 0, 0, 0, 0
test eax, eax
jz @f
fstcall efi_puts, msg_failed_disable_watchdog
jmp $
@@:
fstcall efi_set_text_color, EFI_LIGHTGREEN
fstcall efi_puts, msg_hello_k64_loader
fstcall efi_set_text_color, EFI_LIGHTGRAY
fstcall efi_puts, msg_firmware_vendor
fstcall efi_puts, [rbx + EFI_SYSTEM_TABLE.FirmwareVendor]
fstcall efi_puts, msg_newline
fstcall efi_puts, msg_firmware_revision
fstcall efi_print_hex_no_lz, [rbx + EFI_SYSTEM_TABLE.FirmwareRevision]
fstcall efi_puts, msg_newline
;;;;;;;;;;;;; Obtain and print uefi memory map
; fstcall efi_puts, msg_e820_memmap_here
; fstcall efi_set_text_color, EFI_CYAN
; mov rbx, [efi_table] ;;
; mov r10, [rbx + EFI_SYSTEM_TABLE.BootServices]
; fstcall [r10 + EFI_BOOT_SERVICES.AllocatePages], EFI_ALLOCATE_ANY_PAGES, \
; EFI_RESERVED_MEMORY_TYPE, MEMORY_MAP_SIZE/0x1000, memory_map
; ;; call halt_on_error ; TODO
; ;mov rbx, [efi_table] ;;
; mov r10, [rbx + EFI_SYSTEM_TABLE.BootServices]
; fstcall [r10 + EFI_BOOT_SERVICES.GetMemoryMap], memory_map_size, \
; [memory_map], memory_map_key, descriptor_size, descriptor_ver
; ;; call halt_on_error ; TODO
; mov rsi, [memory_map]
; mov r15, rsi
; add r15, [memory_map_size]
; xor r14, r14 ; memmap entry idx
; .next_descr:
; fstcall efi_print_hex_no_lz, r14
; fstcall efi_puts, msg_spacer
; mov rax, [rsi + EFI_MEMORY_DESCRIPTOR.PhysicalStart]
; mov r12, rax
; fstcall efi_print_hex_fixed, rax
; fstcall efi_puts, msg_spacer
; mov rax, [rsi + EFI_MEMORY_DESCRIPTOR.NumberOfPages]
; shl rax, 12
; add r12, rax
; fstcall efi_print_hex_fixed, r12
; fstcall efi_puts, msg_spacer
; mov ecx, [rsi+EFI_MEMORY_DESCRIPTOR.Type]
; cmp ecx, EFI_LOADER_CODE
; jz .mem_ram_if_wb
; cmp ecx, EFI_LOADER_DATA
; jz .mem_ram_if_wb
; cmp ecx, EFI_BOOT_SERVICES_CODE
; jz .mem_ram_if_wb
; cmp ecx, EFI_BOOT_SERVICES_DATA
; jz .mem_ram_if_wb
; cmp ecx, EFI_CONVENTIONAL_MEMORY
; jz .mem_ram_if_wb
; cmp ecx, EFI_ACPI_RECLAIM_MEMORY
; mov eax, E820_ACPI
; jz .type_done
; cmp ecx, EFI_ACPI_MEMORY_NVS
; mov eax, E820_NVS
; jz .type_done
; cmp ecx, EFI_UNUSABLE_MEMORY
; mov eax, E820_UNUSABLE
; jz .type_done
; cmp ecx, EFI_PERSISTENT_MEMORY
; mov eax, E820_PMEM
; jz .type_done
; jmp .reserved
; .mem_ram_if_wb:
; test [rsi+EFI_MEMORY_DESCRIPTOR.Attribute], dword EFI_MEMORY_WB
; mov eax, E820_RAM
; jnz .type_done
; .reserved:
; mov eax, E820_RESERVED
; .type_done:
; lea rax, [e820_typenames + rax*8]
; fstcall efi_puts, qword [rax]
; fstcall efi_puts, msg_newline
; .done:
; add rsi, [descriptor_size]
; inc r14
; cmp rsi, r15
; jb .next_descr
fstcall efi_set_text_color, EFI_LIGHTGRAY
;;;;;;;;;;;;;; loading kernel to memory
mov r10, [rbx + EFI_SYSTEM_TABLE.BootServices]
fstcall [r10 + EFI_BOOT_SERVICES.HandleProtocol], [efi_handle], lip_guid, lip_interface
test eax, eax
jz @f
fstcall efi_set_text_color, EFI_LIGHTRED
fstcall efi_puts, msg_error_efi_lip_handle
jmp $
@@:
mov r11, [lip_interface]
mov r10, [rbx + EFI_SYSTEM_TABLE.BootServices]
fstcall [r10 + EFI_BOOT_SERVICES.HandleProtocol], [r11 + EFI_LOADED_IMAGE_PROTOCOL.DeviceHandle], sfsp_guid, sfsp_interface
test eax, eax
jz @f
fstcall efi_set_text_color, EFI_LIGHTRED
fstcall efi_puts, msg_error_lip_dev_sfsp
jmp $
@@:
mov r10, [sfsp_interface]
fstcall [r10 + EFI_SIMPLE_FILE_SYSTEM_PROTOCOL.OpenVolume], [sfsp_interface], volume_root
test eax, eax
jz @f
fstcall efi_set_text_color, EFI_LIGHTRED
fstcall efi_puts, msg_error_sfsp_openvolume
jmp $
@@:
;; TODO add function read_file, using it load kernel file
;; read from kernel header how many stack it needs, allocpages for kernel code and stack
;; put phys start / end to kernel header
;; jmp to k64_entry (offset is in kernel header)
; fstcall efi_set_text_color, EFI_LIGHTGRAY
; fstcall efi_puts, msg_end_1
; fstcall efi_print_hex_no_lz, 0x000A000B00C
; fstcall efi_puts, msg_newline
; fstcall efi_print_hex_no_lz, 0xABCDEF133777
; fstcall efi_puts, msg_newline
; fstcall efi_print_hex_no_lz, 0xCAFE
; fstcall efi_puts, msg_newline
; fstcall efi_print_hex_fixed, 0x00764A0B
; fstcall efi_puts, msg_newline
; fstcall efi_print_hex_fixed, 0
; fstcall efi_puts, msg_newline
; fstcall efi_putc, <0+'a'>
jmp $
endp
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
section '.data' data readable writeable
efi_handle dq 0
efi_table dq 0
lip_interface dq 0
sfsp_interface dq 0
hex_codes:
db '0123456789ABCDEF', 0
memory_map_key dq 0
descriptor_size dq 0
descriptor_ver dq 0
memory_map_size dq MEMORY_MAP_SIZE
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
section '.rodata' data readable
gop_guid db EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID
lip_guid db EFI_LOADED_IMAGE_PROTOCOL_GUID
sfsp_guid db EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID
pcirbiop_guid db EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_GUID
kernel_file_path du '\EFI\KERNEL64.BIN', 0
msg_hello_k64_loader du "Kolibri64 EFI bootloader",13,10,0
msg_firmware_vendor du "UEFI vendor: ", 0
msg_firmware_revision du "UEFI revision: ", 0
msg_newline du 13,10,0
msg_failed_disable_watchdog du "Failed to disable watchdog timer!", 13,10,0
msg_error_efi_lip_handle du "efi_handle can't handle LIP",13,10,0
msg_error_lip_dev_sfsp du "LIP device handle can't handle SFSP",13,10,0
msg_error_sfsp_openvolume du "SFSP OpenVolume failed",13,10,0
; msg_end_1 du 13,10,"---------- test printing functions:", 13,10,0
msg_spacer du " ", 0
msg_dummy du "<....>", 0
msg_e820_memmap_here du "Memory map (phys_start, phys_end, e820 type)",13,10,0
msg_e820_available du "Available RAM", 0
mag_e820_reserved du "Reserved RAM", 0
mag_e820_acpi_reclaim du "ACPI reclaimable RAM", 0
mag_e820_acpi_nvs du "ACPI NVS RAM", 0
msg_e820_badmem du "Bad RAM", 0
msg_e820_persistent du "Persistent RAM", 0
e820_typenames:
dq msg_dummy
dq msg_e820_available
dq mag_e820_reserved
dq mag_e820_acpi_reclaim
dq mag_e820_acpi_nvs
dq msg_e820_badmem
dq msg_dummy
dq msg_e820_persistent
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
section '.bss' data readable writeable discardable
memory_map dq ?
volume_root dq ?
section '.reloc' fixups data discardable
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