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LA57: attempt to change (not just clear) LA57 in long mode cause #GP

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This commit is contained in:
Shwartsman 2024-01-05 18:46:39 +02:00
parent 3a73e8a0b2
commit a67fb31d4f
1 changed files with 3 additions and 5 deletions
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8
bochs/cpu/crregs.cc
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@ -1310,11 +1310,9 @@ bool BX_CPP_AttrRegparmN(1) BX_CPU_C::check_CR4(bx_address cr4_val)
return false;
}
if(! temp_cr4.get_LA57()) {
if (BX_CPU_THIS_PTR cr4.get_LA57()) {
BX_ERROR(("check_CR4(): attempt to clear CR4.LA57 when EFER.LMA=1"));
return false;
}
if(temp_cr4.get_LA57() != BX_CPU_THIS_PTR cr4.get_LA57()) {
BX_ERROR(("check_CR4(): attempt to change CR4.LA57 when EFER.LMA=1"));
return false;
}
}
else {