const system = @import("system"); const vm = system.vm; const syscalls = system.syscalls; const buffer = system.ring_buffer; // FIXME: Make arch-specific. const PAGE_SIZE = 4096; fn setupKernelRingBuffer(base: u64) !buffer.RingBuffer { const phys = vm.PhysFrame{ .address = try syscalls.allocFrame() }; const data: [*]u8 = @ptrCast(phys.virtualPointer(u8, base)); try syscalls.setEventQueue(syscalls.getThreadId(), phys.address); return buffer.RingBuffer.init(data, PAGE_SIZE, true); } fn setTokens() void { var tokens: u64 = 0; tokens |= @intFromEnum(system.kernel.Token.Root); tokens |= @intFromEnum(system.kernel.Token.PhysicalMemory); tokens |= @intFromEnum(system.kernel.Token.CreateProcess); syscalls.setTokens(syscalls.getThreadId(), tokens) catch {}; } export fn _start(base: u64, address: u64) callconv(.C) noreturn { setTokens(); const mapper = vm.MemoryMapper.create(.{ .address = address }, base); syscalls.print(base); syscalls.print(address); syscalls.print(@intFromPtr(mapper.directory)); const phys = syscalls.allocFrame() catch { while (true) {} }; vm.map(&mapper, 0x6000000, .{ .address = phys }, @intFromEnum(vm.Flags.ReadWrite) | @intFromEnum(vm.Flags.User)) catch { while (true) {} }; const event_queue = setupKernelRingBuffer(base) catch { while (true) {} }; _ = event_queue; var counter: u64 = 0; while (true) : (counter += 4) { syscalls.sleep(1000); syscalls.print(counter); } }