Samuka007/asterinas
1
0
Fork 0
mirror of https://github.com/asterinas/asterinas.git synced 2025-06-28 20:03:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add mutable functionality to the process VMAR

Browse Source
This commit is contained in:
Chen Chengjun
2025-03-17 10:53:56 +08:00
committed by Tate, Hongliang Tian
parent 248b24fb4e
commit 2a20f6b59a
15 changed files with 119 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
kernel/src/thread/exception.rs
View File

@ -3,7 +3,7 @@
#![expect(unused_variables)]
use aster_rights::Full;
use ostd::{cpu::*, mm::VmSpace};
use ostd::{cpu::*, mm::VmSpace, task::Task};
use crate::{
prelude::*,
@ -31,7 +31,9 @@ pub fn handle_exception(ctx: &Context, context: &UserContext) {
log_trap_info(trap_info);
if let Ok(page_fault_info) = PageFaultInfo::try_from(trap_info) {
if handle_page_fault_from_vmar(ctx.process.root_vmar(), &page_fault_info).is_ok() {
let user_space = ctx.user_space();
let root_vmar = user_space.root_vmar();
if handle_page_fault_from_vmar(root_vmar, &page_fault_info).is_ok() {
return;
}
}
@ -44,8 +46,9 @@ pub(crate) fn handle_page_fault_from_vm_space(
vm_space: &VmSpace,
page_fault_info: &PageFaultInfo,
) -> core::result::Result<(), ()> {
let current = current!();
let root_vmar = current.root_vmar();
let task = Task::current().unwrap();
let current_root_vmar = task.as_thread_local().unwrap().root_vmar().borrow();
let root_vmar = current_root_vmar.as_ref().unwrap();
// If page is not present or due to write access, we should ask the vmar try to commit this page
debug_assert_eq!(