Changeset 107201 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Nov 30, 2024 12:55:28 AM (4 months ago)

Author:

vboxsync

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

166205

Message:

VMM/IEM: Fixed bug in iemNativeEmitLoadGprWithGstRegExT where we used 64-bit loads for 32-bit guest registers (eflags, mxcsr). Regression from r165291. jiraref:VBP-1466 bugref:10720

File:

• trunk/src/VBox/VMM/VMMAll/target-x86/IEMAllN8veEmit-x86.h (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/target-x86/IEMAllN8veEmit-x86.h

@@ -229 +229 @@
     /* 32-bit registers:   */
     else if RT_CONSTEXPR_IF(a_enmGstReg == kIemNativeGstReg_EFlags)
-        return iemNativeEmitLoadGprFromVCpuU64Ex(pCodeBuf, off, idxHstReg, RT_UOFFSETOF(VMCPU, cpum.GstCtx.eflags));
+        return iemNativeEmitLoadGprFromVCpuU32Ex(pCodeBuf, off, idxHstReg, RT_UOFFSETOF(VMCPU, cpum.GstCtx.eflags));
     else if RT_CONSTEXPR_IF(a_enmGstReg == kIemNativeGstReg_MxCsr)
-        return iemNativeEmitLoadGprFromVCpuU64Ex(pCodeBuf, off, idxHstReg, RT_UOFFSETOF(VMCPU, cpum.GstCtx.XState.x87.MXCSR));
+        return iemNativeEmitLoadGprFromVCpuU32Ex(pCodeBuf, off, idxHstReg, RT_UOFFSETOF(VMCPU, cpum.GstCtx.XState.x87.MXCSR));
 
     /* 16-bit registers */