Changeset 97620 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Nov 21, 2022 2:20:25 AM (2 years ago)

Author:

vboxsync

Message:

VMM/IEM: Corrected a stack register update bug when RETF is returning to 64-bit code - was just loading SP instead of the whole RSP. bugref:9898

File:

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

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

@@ -2546 +2546 @@
         else
             pVCpu->cpum.GstCtx.ss.u64Base    = X86DESC_BASE(&DescSs.Legacy);
-        if (!pVCpu->cpum.GstCtx.ss.Attr.n.u1DefBig)
+        if (!pVCpu->cpum.GstCtx.ss.Attr.n.u1DefBig && pVCpu->iem.s.enmCpuMode != IEMMODE_64BIT)
             pVCpu->cpum.GstCtx.sp            = (uint16_t)uNewOuterRsp;
         else