From 8251da342161767fe203627223ccd4a7026701c6 Mon Sep 17 00:00:00 2001 From: Jon Santmyer Date: Fri, 4 Sep 2026 11:31:40 -0400 Subject: initial commit. working on tasking --- arch/x86_64/hal/lxdt.s | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 arch/x86_64/hal/lxdt.s (limited to 'arch/x86_64/hal/lxdt.s') diff --git a/arch/x86_64/hal/lxdt.s b/arch/x86_64/hal/lxdt.s new file mode 100644 index 0000000..1591599 --- /dev/null +++ b/arch/x86_64/hal/lxdt.s @@ -0,0 +1,26 @@ +.global load_gdt +.type load_gdt @function +load_gdt: + lgdt (%rdi) +.reload_segments: + pushq $0x8 + leaq .reload_cs(%rip), %rax + pushq %rax + retfq +.reload_cs: + movw $0x10, %ax + movw %ax, %ds + movw %ax, %es + movw %ax, %fs + movw %ax, %gs + movw %ax, %ss + retq +.size load_gdt, . - load_gdt + +.global load_tss +.type load_tss @function +load_tss: + movw $0x30, %ax + ltr %ax + retq +.size load_tss, . - load_tss -- cgit v1.2.3