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Set framebuffer tag in multiboot header and add vesa grub menu entries

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Achilleas Anagnostopoulos
2017-07-13 22:05:29 +01:00
parent eaeae85600
commit 16ad4c856e
2 changed files with 38 additions and 11 deletions
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18
src/arch/x86_64/asm/multiboot_header.s
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@@ -24,14 +24,16 @@ header_start:
dd 12 ; size
dd 0x3 ; kernel supports EGA console
; Define graphics mode tag
;align 8 ; tags should be 64-bit aligned
;dw 5 ; type
;dw 0 ; flags
;dd 20 ; size
;dd 80 ; width (pixels or chars)
;dd 25 ; height (pixels or chars)
;dd 0 ; bpp (0 for text mode
; Define graphics mode tag to advise the bootloader that the kernel
; supports framebuffer console. Ssetting 0 for width, height and bpp
; indicates no particular mode preference.
align 8 ; tags should be 64-bit aligned
dw 5 ; type
dw 0 ; flags
dd 20 ; size
dd 0 ; width (pixels or chars)
dd 0 ; height (pixels or chars)
dd 0 ; bpp (0 for text mode)
; According to page 6 of the spec, the tag list is terminated by a tag with
; type 0 and size 8