message: Paging: Don't explicitly re-map multiboot info
diff: -use multiboot::information::Multiboot;
  use x86_64::instructions::tlb;
  use x86_64::structures::paging::{
  Mapper, Page, PageTableIndex, PhysFrame, RecursivePageTable, Size1GiB, Size2MiB, Size4KiB,
  @@ -6,9 +5,8 @@ use x86_64::structures::paging::{
  #[cfg(feature = "smp")]
  use crate::arch::x86_64::kernel::apic;
  -use crate::arch::x86_64::kernel::get_mbinfo;
  use crate::arch::x86_64::mm::physicalmem;
  -use crate::arch::x86_64::mm::{PhysAddr, VirtAddr, MEM};
  +use crate::arch::x86_64::mm::{PhysAddr, VirtAddr};
  use crate::env;
  use crate::mm;
  @@ -240,6 +238,7 @@ pub fn unmap<S: PageSize>(virtual_address: VirtAddr, count: usize) {
  );
  }
  +#[cfg(feature = "acpi")]
  pub fn identity_map(start_address: PhysAddr, end_address: PhysAddr) {
  let first_page =
  Page::<BasePageSize>::containing_address(x86_64::VirtAddr::new(start_address.as_u64()));
  @@ -272,8 +271,6 @@ pub fn get_application_page_size() -> usize {
  pub fn init() {}
  pub fn init_page_tables() {
  - debug!("Create new view to the kernel space");
  -
  if env::is_uhyve() {
  // Uhyve identity-maps the first Gibibyte of memory (512 page table entries * 2MiB pages)
  // We now unmap all memory after the kernel image, so that we can remap it ourselves later for the heap.
  @@ -295,34 +292,5 @@ pub fn init_page_tables() {
  }
  tlb::flush_all();
  - } else {
  - unsafe {
  - // Identity-map the supplied Multiboot information and command line.
  - let mb_info = get_mbinfo();
  - if !mb_info.is_zero() {
  - info!("Found Multiboot info at {:#x}", mb_info);
  - identity_map(PhysAddr(mb_info.as_u64()), PhysAddr(mb_info.as_u64()));
  -
  - // Map the "Memory Map" information too.
  - let mb = Multiboot::from_ptr(mb_info.as_u64(), &mut MEM).unwrap();
  - let memory_map_address = mb
  - .memory_regions()
  - .expect("Could not find a memory map in the Multiboot information")
  - .next()
  - .expect("Could not first map address")
  - .base_address();
  - identity_map(PhysAddr(memory_map_address), PhysAddr(memory_map_address));
  - }
  -
  - let cmdsize = env::get_cmdsize();
  - if cmdsize > 0 {
  - let cmdline = env::get_cmdline();
  - info!("Found cmdline at {:#x} (size {})", cmdline, cmdsize);
  - identity_map(
  - PhysAddr(cmdline.as_u64()),
  - PhysAddr(cmdline.as_u64()) + cmdsize - 1u64,
  - );
  - }
  - }
  }
  }
  