vbox的更動 1360 路徑 trunk/src/VBox/VMM/VMMAll/IOMAll.cpp

時間撮記:

2007-3-9 上午10:44:31 (18 年 以前)

作者:

vboxsync

訊息:

Previous change was not correct for v86 code.

檔案:

• trunk/src/VBox/VMM/VMMAll/IOMAll.cpp (修改) (1 筆差異)

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

@@ -1199 +1199 @@
      */
     uint32_t efl = CPUMRawGetEFlags(pVM, pCtxCore);
-    uint32_t cpl;
-
-    if (pCtxCore->eflags.Bits.u1VM)
-        cpl = 3;
-    else
-        cpl = (pCtxCore->ss & X86_SEL_RPL);
-
-    if (    cpl > 1
-        &&  X86_EFL_GET_IOPL(efl) < cpl
+
+    if (    (    (pCtxCore->ss & X86_SEL_RPL) > 1
+             &&  X86_EFL_GET_IOPL(efl) < cpl)
+        ||  pCtxCore->eflags.Bits.u1VM      /* IOPL is ignored in V86 mode; always check TSS bitmap */
        )
     {