XunilGroup/XunilOS
1
0
Fork 0
mirror of https://github.com/XunilGroup/XunilOS.git synced 2026-06-02 14:44:26 +02:00
Code Issues Packages Projects Releases 1 Wiki Activity

Improve aarch64 support by building everything for both archictectures,

Browse Source 
remove incorrect timer frequency set, fix interrupt handler not
restoring stack ptr, handle both user and kernel aborts, remove aarch64
ps2 support, fix ELF code mapped as code making it unwritable, add
assets.rs to handle both arches automatically, make PS2 x86_64
compatible with linux keycodes, always try printing kernel panic to
serial
This commit is contained in:
csd4ni3l
2026-05-22 22:18:42 +02:00
parent 1205d8ce7a
commit 56c5da0742
40 changed files with 393 additions and 301 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel/src/arch/x86_64/syscall.rs
+28 -28
View File
@@ -4,7 +4,7 @@ use x86_64::instructions::tlb::flush_all;
use crate::{
arch::x86_64::gdt::{GDT, TSS},
task::scheduler::{SCHEDULER, current_pid},
task::context::UserContext,
};
const IA32_EFER: u32 = 0xC0000080;
@@ -85,33 +85,6 @@ pub fn init_syscalls() {
}
}
#[unsafe(no_mangle)]
unsafe extern "C" fn check_and_reschedule() -> usize {
let pid = current_pid().unwrap_or(0);
if pid == 0 {
return 0;
}
let should = SCHEDULER
.with_process(pid, |process| process.should_reschedule)
.unwrap_or(false);
if !should {
return 0;
}
let next_task = SCHEDULER.next_task();
if next_task == pid {
return 0;
}
SCHEDULER.switch_to(next_task, false);
1
}
#[unsafe(naked)]
#[unsafe(no_mangle)]
unsafe extern "C" fn syscall_entry() {
@@ -206,3 +179,30 @@ unsafe extern "C" fn syscall_entry() {
"#,
);
}
#[unsafe(naked)]
#[unsafe(no_mangle)]
pub unsafe fn run_next(ctx: *const UserContext, user_rsp: u64) {
core::arch::naked_asm!(
"mov gs:[0], rsi", // store new user rsp
"mov rsp, rdi",
"mov r15, qword ptr [rsp + 0]",
"mov r14, qword ptr [rsp + 8]",
"mov r13, qword ptr [rsp + 16]",
"mov r12, qword ptr [rsp + 24]",
"mov r11, qword ptr [rsp + 32]", // rflags
"mov r10, qword ptr [rsp + 40]",
"mov r9, qword ptr [rsp + 48]",
"mov r8, qword ptr [rsp + 56]",
"mov rsi, qword ptr [rsp + 64]",
"mov rdi, qword ptr [rsp + 72]",
"mov rbp, qword ptr [rsp + 80]",
"mov rdx, qword ptr [rsp + 88]",
"mov rcx, qword ptr [rsp + 96]", // rip
"mov rbx, qword ptr [rsp + 104]",
"mov rax, qword ptr [rsp + 112]",
"mov rsp, qword ptr [rsp + 120]", // user rsp
"swapgs",
"sysretq",
);
}