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[mm] Create new uspace with parameters passed by user #192

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Oct 22, 2024
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[mm] Create new uspace with parameters passed by user #192

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7 changes: 2 additions & 5 deletions modules/axmm/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -19,9 +19,6 @@ use lazyinit::LazyInit;
use memory_addr::{va, PhysAddr, VirtAddr};
use memory_set::MappingError;

const USER_ASPACE_BASE: usize = 0x1000;
const USER_ASPACE_SIZE: usize = 0x7fff_ffff_f000;

static KERNEL_ASPACE: LazyInit<SpinNoIrq<AddrSpace>> = LazyInit::new();

fn mapping_err_to_ax_err(err: MappingError) -> AxError {
Expand All @@ -46,8 +43,8 @@ pub fn new_kernel_aspace() -> AxResult<AddrSpace> {
}

/// Creates a new address space for user processes.
pub fn new_user_aspace() -> AxResult<AddrSpace> {
let mut aspace = AddrSpace::new_empty(VirtAddr::from(USER_ASPACE_BASE), USER_ASPACE_SIZE)?;
pub fn new_user_aspace(base: VirtAddr, size: usize) -> AxResult<AddrSpace> {
let mut aspace = AddrSpace::new_empty(base, size)?;
if !cfg!(target_arch = "aarch64") {
// ARMv8 use a separate page table (TTBR0_EL1) for user space, it
// doesn't need to copy the kernel portion to the user page table.
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