Sean Cross
de7fa677cb
printf works now, and we're getting the page table stuff set up. Signed-off-by: Sean Cross <sean@xobs.io>
34 lines
1020 B
Rust
34 lines
1020 B
Rust
use crate::definitions::{XousError, XousPid, MemoryAddress};
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use crate::mem::MemoryManager;
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use crate::{filled_array, println, print};
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const MAX_PROCESS_COUNT: usize = 256;
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struct Process {
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satp: Option<MemoryAddress>,
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}
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impl core::fmt::Debug for Process {
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fn fmt(&self, fmt: &mut core::fmt::Formatter) -> core::result::Result<(), core::fmt::Error> {
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write!(fmt, "Process (satp: 0x{:08x})", match self.satp { Some(s) => s.get(), None => 0 })
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}
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}
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pub struct ProcessTable {
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processes: [Process; MAX_PROCESS_COUNT],
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}
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impl ProcessTable {
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pub fn new(mm: &mut MemoryManager) -> Self {
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let mut pt = ProcessTable {
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processes: filled_array![Process { satp: None }; 256],
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};
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// Allocate a root page table for PID 1
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// mm.create_identity(1).expect("Unable to create identity mapping");
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pt.processes[1].satp = Some(mm.alloc_page(1).unwrap());
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println!("PID 1: {:?}", pt.processes[1]);
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pt
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}
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}
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