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hack to W/A NX paging fault under nested paging while virtualizing SMM under SVM

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Stanislav Shwartsman 2021-04-27 08:22:45 +00:00
parent 79d6a16e3b
commit 2d2ec5e0aa
1 changed files with 3 additions and 0 deletions
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bochs/cpu/paging.cc
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@ -1381,6 +1381,9 @@ bx_phy_address BX_CPU_C::translate_linear(bx_TLB_entry *tlbEntry, bx_address lad
#endif #endif
#if BX_SUPPORT_SVM #if BX_SUPPORT_SVM
if (BX_CPU_THIS_PTR in_svm_guest && SVM_NESTED_PAGING_ENABLED) { if (BX_CPU_THIS_PTR in_svm_guest && SVM_NESTED_PAGING_ENABLED) {
// hack: ignore isExecute attribute in SMM mode under SVM virtualization
if (BX_CPU_THIS_PTR in_smm && rw == BX_EXECUTE) rw = BX_READ;
paddress = nested_walk(paddress, rw, 0); paddress = nested_walk(paddress, rw, 0);
} }
#endif #endif