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支持syscall快速系统调用指令 (#417)

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* 支持syscall快速系统调用指令

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Co-authored-by: LoGin <longjin@DragonOS.org>
This commit is contained in:
GnoCiYeH
2023-11-04 21:39:44 +08:00
committed by GitHub
parent 2f6f547ae0
commit 1603395155
14 changed files with 317 additions and 48 deletions
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7
kernel/src/arch/x86_64/process/table.rs
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@ -10,10 +10,11 @@ use crate::{
pub const KERNEL_CS: SegmentSelector = SegmentSelector::new(1, Ring::Ring0);
/// kernel data segment selector
pub const KERNEL_DS: SegmentSelector = SegmentSelector::new(2, Ring::Ring0);
/// user code segment selector
pub const USER_CS: SegmentSelector = SegmentSelector::new(5, Ring::Ring3);
/// user data segment selector
pub const USER_DS: SegmentSelector = SegmentSelector::new(6, Ring::Ring3);
pub const USER_DS: SegmentSelector = SegmentSelector::new(5, Ring::Ring3);
/// user code segment selector
/// 如果改这里，记得改syscall_64里面写死的常量
pub const USER_CS: SegmentSelector = SegmentSelector::new(6, Ring::Ring3);
static mut TSS_MANAGER: TSSManager = TSSManager::new();