Changeset 12801 in vbox for trunk/src

Timestamp:

Sep 29, 2008 1:56:34 PM (17 years ago)

Author:

vboxsync

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

37148

Message:

Lidt/lgdt emulation fix for 16 bits operand size.

File:

• trunk/src/VBox/VMM/VMMAll/EMAll.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/VMMAll/EMAll.cpp

@@ -2253 +2253 @@
     X86XDTR32   dtr32;
 
-    LogFlow(("Emulate %s at %VGv\n", emGetMnemonic(pCpu), pRegFrame->rip));
+    Log(("Emulate %s at %VGv\n", emGetMnemonic(pCpu), pRegFrame->rip));
 
     /* Only for the VT-x real-mode emulation case. */
@@ -2275 +2275 @@
     rc = emRamRead(pVM, &dtr32, pParam1, sizeof(dtr32));
     AssertRCReturn(rc, VERR_EM_INTERPRETER);
+
+    if (!(pCpu->prefix & PREFIX_OPSIZE))
+        dtr32.uAddr &= 0xffffff; /* 16 bits operand size */
 
     if (pCpu->pCurInstr->opcode == OP_LIDT)