Changeset 102384 in vbox for trunk/src

Timestamp:

Nov 29, 2023 9:06:16 PM (18 months ago)

Author:

vboxsync

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

160520

Message:

VMM/IEM: Quick workaround for unaligned atomic instructions on arm64. bugref:10547

File:

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

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

@@ -2499 +2499 @@
      * Init the execution environment.
      */
-    iemInitExec(pVCpu, 0 /*fExecOpts*/);
+#ifdef RT_ARCH_ARM64 /** @todo ARM64: fix unaligned locked instructions properly. @bugreg{10547} */
+    if (pVM->cCpus == 1)
+        iemInitExec(pVCpu, IEM_F_X86_DISREGARD_LOCK /*fExecOpts*/);
+    else
+#endif
+        iemInitExec(pVCpu, 0 /*fExecOpts*/);
     if (RT_LIKELY(pVCpu->iem.s.msRecompilerPollNow != 0))
     { }