From c6aa00eea71c91a219dae8688530ff0a3b83bcd4 Mon Sep 17 00:00:00 2001
From: Loic Guegan <manzerbredes@mailbox.org>
Date: Fri, 9 Apr 2021 18:18:15 +0200
Subject: Enable TSS segment

---
 src/utils/gdt.h | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

(limited to 'src/utils/gdt.h')

diff --git a/src/utils/gdt.h b/src/utils/gdt.h
index 85a75aa..01a01bf 100644
--- a/src/utils/gdt.h
+++ b/src/utils/gdt.h
@@ -31,6 +31,35 @@ struct GDT_REGISTER {
   u32 base;
 } __attribute__((packed));
 
+typedef struct GDT_TSS {
+  u16 previous_task,previous_task_unused;
+  u32 esp0;
+  u16 ss0, ss0_unused;
+  u32 esp1;
+  u16 ss1, ss1_unused;
+  u32 esp2;
+  u16 ss2, ss2_unused;
+  u32 cr3;
+  u32 eip;
+  u32 eflags;
+  u32 eax;
+  u32 ecx;
+  u32 edx;
+  u32 ebx;
+  u32 esp;
+  u32 ebp;
+  u32 esi;
+  u32 edi;
+  u16 es, es_reserved;
+  u16 cs, cs_reserved;
+  u16 ss, ss_reserved;
+  u16 ds, ds_reserved;
+  u16 fs, fs_reserved;
+  u16 gs, gs_reserved;
+  u16 ldtss, ldtss_reserved;
+  u16 t_reserved, io_map;
+} __attribute__((packed)) GDT_TSS;
+
 /**
  * Copy GDT in memory
  */
@@ -39,6 +68,6 @@ void gdt_memcpy();
 /**
  * Write a GDT entry at address addr
  */
-void gdt_write_entry(GDT_ENTRY entry, u32 addr);
+void gdt_write_entry(GDT_ENTRY entry, u32 id);
 
 #endif
-- 
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