From 1d8973528475d9669617c1f4f83ef551989a3b68 Mon Sep 17 00:00:00 2001
From: acevest <zhaoyanbai@126.com>
Date: Tue, 16 May 2023 09:00:00 +0800
Subject: [PATCH] =?utf8?q?sysenter=E5=90=8E=E5=86=85=E6=A0=B8=E5=9C=A8?=
 =?utf8?q?=E5=BC=80=E4=B8=AD=E6=96=AD=E7=9A=84=E6=83=85=E5=86=B5=E4=B8=8B?=
 =?utf8?q?=E6=89=A7=E8=A1=8C=E7=B3=BB=E7=BB=9F=E8=B0=83=E7=94=A8?=
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---
 kernel/syscall.S | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/syscall.S b/kernel/syscall.S
index b11cdee..6526d45 100644
--- a/kernel/syscall.S
+++ b/kernel/syscall.S
@@ -33,6 +33,10 @@ syscall_entry:
 #if FIX_SYSENTER_ESP_MODE
     movl    (%esp),%esp 
 #endif
+
+    // sysenter have cleared IF, and sysexit will not set IF.
+    sti
+
     // 这段代码纯是为了pt_regs_t准备的
     // 后续看看直接优化掉
     pushl   $(SELECTOR_USER_SS)
@@ -82,7 +86,6 @@ ret_from_fork_user:
     // sysexit指令从ecx中恢复用户态esp
     xchgl   %ebp, %ecx
 
-    sti        /* sysenter have cleared IF, and sysexit will not set IF. */
     sysexit
 
 
-- 
2.44.0