Changeset 59286 in vbox for trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-mode-EnteredMode.asm

Timestamp:

Jan 8, 2016 12:23:32 AM (9 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

104934

Message:

bs3kit: 32-bit tss, idt and system call. started on 64-bit.

File:

• trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-mode-EnteredMode.asm (modified) (3 diffs)

trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-mode-EnteredMode.asm

@@ -45 +45 @@
 %ifdef TMPL_CMN_R86
 BS3_BEGIN_DATA16
+BS3_EXTERN_SYSTEM16 Bs3Lidt_Ivt
 TMPL_BEGIN_TEXT
 extern               TMPL_NM(Bs3TrapSystemCallHandler)
         xor     ax, ax
         mov     ss, ax
+
+        mov     ax, BS3_SEL_SYSTEM16
+        mov     ds, ax
+        lidt    [Bs3Lidt_Ivt]
+
         mov     ax, BS3DATA16
         mov     ds, ax
@@ -101 +107 @@
 BS3_EXTERN_SYSTEM16 Bs3Gdte_Tss32
 BS3_EXTERN_SYSTEM16 Bs3Gdte_Tss32DoubleFault
+BS3_EXTERN_SYSTEM16 Bs3Tss32
+BS3_EXTERN_SYSTEM16 Bs3Tss32DoubleFault
 TMPL_BEGIN_TEXT
         mov     ax, BS3_SEL_R0_SS32
@@ -112 +120 @@
         btr     [Bs3Gdte_Tss32DoubleFault], ax  ; mark it not busy
         btr     [Bs3Gdte_Tss32], ax             ; mark it not busy
+        mov     eax, cr3
+        mov     [Bs3Tss32 + X86TSS32.cr3], eax
+        mov     [Bs3Tss32DoubleFault + X86TSS32.cr3], eax
         mov     ax, BS3_SEL_TSS32
         ltr     ax
 
         mov     ax, BS3_SEL_LDT
+        mov     [Bs3Tss32 + X86TSS32.selLdt], ax
         lldt    ax