Microkernel thing OS experiment (Zig ⚡)
pci.express
1pub const apic = @import("apic.zig");
2pub const pic = @import("pic.zig");
3pub const pit = @import("pit.zig");
4pub const idt = @import("idt.zig");
5const std = @import("std");
6const arch = @import("../root.zig");
7
8pub inline fn enable() void {
9 asm volatile ("sti");
10}
11pub inline fn disable() void {
12 asm volatile ("cli");
13}
14
15pub fn unhandled_interrupt(stack_frame: *idt.InterruptFrame(u64)) callconv(.{ .x86_64_sysv = .{} }) void {
16 std.log.err("Unhandled interrupt (0x{x})!!! rip = 0x{x}", .{ stack_frame.int_num.interrupt, stack_frame.rip });
17 arch.instructions.die();
18}
19
20pub fn breakpoint(stack_frame: *idt.InterruptFrame(u64)) callconv(.{ .x86_64_sysv = .{} }) void {
21 std.log.warn("Breakpoint @ 0x{x}, returning execution...", .{stack_frame.rip});
22}
23
24pub fn double_fault(stack_frame: *idt.InterruptFrame(u64)) callconv(.{ .x86_64_sysv = .{} }) void {
25 std.log.err("Double fault @ 0x{x}, dying!!!", .{stack_frame.rip});
26 arch.instructions.die();
27}
28
29pub fn general_protection_fault(stack_frame: *idt.InterruptFrame(idt.SelectorErrorCode)) callconv(.{ .x86_64_sysv = .{} }) void {
30 std.log.warn("General Protection Fault @ 0x{x} (Error Code {}), returning execution...", .{ stack_frame.rip, stack_frame.error_code });
31 arch.instructions.die();
32}