Changeset 97611 in vbox for trunk/src/VBox

Timestamp:

Nov 19, 2022 11:42:45 PM (2 years ago)

Author:

vboxsync

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

154655

Message:

ValKit/Bs3Kit: Fixed bug in 32-bit trap handlers where ESP was truncated when the trap/int/fault/whatever originated in v8086 mode. bugref:9898

File:

• trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-c32-Trap32Generic.asm (modified) (1 diff)

trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-c32-Trap32Generic.asm

@@ -327 +327 @@
         mov     byte [edi + BS3TRAPFRAME.Ctx + BS3REGCTX.bCpl], 3
         or      byte [edi + BS3TRAPFRAME.Ctx + BS3REGCTX.bMode], BS3_MODE_CODE_V86 ; paranoia ^ 2
-        movzx   ecx, word [ebp + 16]
+        mov     ecx, [ebp + 16]
         mov     [edi + BS3TRAPFRAME.Ctx + BS3REGCTX.rsp], ecx
         mov     cx, [ebp + 20]