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Data segments aren't needed for 64-bit mode

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(cherry picked from commit e179dadf70)
This commit is contained in:
Philipp Oppermann
2017-01-12 17:23:50 +01:00
parent d905671f45
commit b3ddd18e7a
1 changed files with 0 additions and 8 deletions
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8
src/arch/x86_64/boot.asm
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@@ -29,12 +29,6 @@ start:
; load the 64-bit GDT
lgdt [gdt64.pointer]
; update selectors
mov ax, gdt64.data
mov ss, ax
mov ds, ax
mov es, ax
jmp gdt64.code:long_mode_start
set_up_page_tables:
@@ -203,8 +197,6 @@ gdt64:
dq 0 ; zero entry
.code: equ $ - gdt64 ; new
dq (1<<44) | (1<<47) | (1<<41) | (1<<43) | (1<<53) ; code segment
.data: equ $ - gdt64 ; new
dq (1<<44) | (1<<47) | (1<<41) ; data segment
.pointer:
dw $ - gdt64 - 1
dq gdt64