ostd 0.8.4

Rust OS framework that facilitates the development of and innovation in OS kernels
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// SPDX-License-Identifier: MPL-2.0

//! The IOMMU support.

mod dma_remapping;
mod fault;
mod registers;

pub(crate) use dma_remapping::{has_dma_remapping, map, unmap};

use crate::mm::page_table::PageTableError;

/// An enumeration representing possible errors related to IOMMU.
#[derive(Debug)]
pub enum IommuError {
    /// No IOMMU is available.
    NoIommu,
    /// Error encountered during modification of the page table.
    ModificationError(PageTableError),
}

pub(crate) fn init() -> Result<(), IommuError> {
    registers::init()?;
    dma_remapping::init();

    Ok(())
}