Changeset 104343 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Apr 17, 2024 1:19:06 PM (10 months ago)

Author:

vboxsync

Message:

VMM/IEM: Fixed debug/strict regression from r162198 where x0/rax could be trashed by IEMNATIVE_STRICT_EFLAGS_SKIPPING_EMIT_CHECK in iemNativeEmitEpilog leading to weird return status codes and misbehaviour. bugref:10375

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllN8veRecompiler.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/IEMAllN8veRecompiler.cpp

@@ -6398 +6398 @@
 #endif
     IEMNATIVE_ASSERT_INSTR_BUF_ENSURE(pReNative, off);
+
+    /* HACK: For IEMNATIVE_STRICT_EFLAGS_SKIPPING_EMIT_CHECK. */
+    pReNative->Core.bmHstRegs &= ~RT_BIT_32(IEMNATIVE_CALL_RET_GREG);
 
     return iemNativeEmitRcFiddling(pReNative, off, idxReturn);