Make memory map accessible to MMU setup code

src/arch/aarch64/memory/mod.rs

@@ -144,7 +144,7 @@ pub mod kernel_mem_range {
     }
 }
 
-use kernel_mem_range::*;
+pub use kernel_mem_range::*;
 
 /// A virtual memory layout that is agnostic of the paging granularity that the
 /// hardware MMU will use.
@@ -246,7 +246,9 @@ static KERNEL_VIRTUAL_LAYOUT: [Descriptor; 5] = [
 ///
 /// If the address is not covered in VIRTUAL_LAYOUT, return a default for normal
 /// cacheable DRAM.
-fn get_virt_addr_properties(virt_addr: usize) -> Result<(usize, AttributeFields), &'static str> {
+pub fn get_virt_addr_properties(
+    virt_addr: usize,
+) -> Result<(usize, AttributeFields), &'static str> {
     if virt_addr > map::END {
         return Err("Address out of range.");
     }

src/arch/aarch64/mmu.rs

@@ -26,6 +26,7 @@
 //! MMU initialisation.
 //! [ARMv8 memory addressing](https://static.docs.arm.com/100940/0100/armv8_a_address%20translation_100940_0100_en.pdf)
 
+use crate::arch::aarch64::memory::{get_virt_addr_properties, AttributeFields};
 use crate::println;
 use cortex_a::{barrier, regs::*};
 use register::register_bitfields;