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Clear the AC flag before capturing it #43

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Clear the AC flag before capturing it #43

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7 changes: 7 additions & 0 deletions shvvp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -131,6 +131,13 @@ ShvVpInitialize (
//
ShvCaptureSpecialRegisters(&Data->SpecialRegisters);

//
// Make sure the AC flags in the EFLAGS is cleared before capturing the
// register. This flag is checked as an indicator of whether the VM is
// launched below.
//
__writeeflags(__readeflags() & ~EFLAGS_ALIGN_CHECK);

//
// Then, capture the entire register state. We will need this, as once we
// launch the VM, it will begin execution at the defined guest instruction
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