Changeset 94164 in vbox for trunk/src/VBox/VMM

Timestamp:

Mar 11, 2022 9:05:10 AM (3 years ago)

Author:

vboxsync

Message:

VMM/IEM: fixed bug in cmpxchg16b worker for gcc targets.

File:

trunk/src/VBox/VMM/VMMAll/IEMAllAImpl.asm

-              r94163
+              r94164
         lock cmpxchg16b [rdi]
         mov     [rsi], eax
         mov     [rsi + 8], edx
+        mov     [rsi], rax
+        mov     [rsi + 8], rdx
         IEM_SAVE_FLAGS       r10, (X86_EFL_ZF), 0 ; clobbers T0+T1 (eax, r11)
 …
 BEGINPROC_FASTCALL iemAImpl_cmpxchg16b_locked, 16
         ; Lazy bird always lock prefixes cmpxchg8b.
+        ; Lazy bird always lock prefixes cmpxchg16b.
         jmp     NAME_FASTCALL(iemAImpl_cmpxchg16b,16,$@)
 ENDPROC iemAImpl_cmpxchg16b_locked

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