Changeset 12773 in vbox

Timestamp:

Sep 26, 2008 4:32:43 PM (17 years ago)

Author:

vboxsync

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

37113

Message:

EMInterpretLMSW: LMSW cannot change AM or WP, so no need to check these. Kudos to nike for finding this.

File:

• trunk/src/VBox/VMM/VMMAll/EMAll.cpp (modified) (1 diff)

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

@@ -1921 +1921 @@
     uint64_t NewCr0 = ( OldCr0 & ~(             X86_CR0_MP | X86_CR0_EM | X86_CR0_TS))
                     | (u16Data &  (X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS));
-
-#ifdef IN_GC
-    /* Need to change the hyper CR0? Doing it the lazy way then. */
-    if (    (OldCr0 & (X86_CR0_AM | X86_CR0_WP))
-        !=  (NewCr0 & (X86_CR0_AM | X86_CR0_WP)))
-    {
-        Log(("EMInterpretLMSW: CR0: %#x->%#x => R3\n", OldCr0, NewCr0));
-        VM_FF_SET(pVM, VM_FF_TO_R3);
-    }
-#endif
 
     return CPUMSetGuestCR0(pVM, NewCr0);