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added missing EPT misconfig condition check

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Stanislav Shwartsman 2016-12-10 05:06:59 +00:00
parent 46b4a76cd3
commit 7b2a8bb340
1 changed files with 7 additions and 0 deletions
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7
bochs/cpu/paging.cc
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@ -1823,6 +1823,13 @@ bx_phy_address BX_CPU_C::translate_guest_physical(bx_phy_address guest_paddr, bx
ppf += (bx_phy_address)(guest_paddr & offset_mask);
break;
}
// EPT non leaf entry, check for reserved bits
if ((curr_entry >> 3) & 0xf) {
BX_DEBUG(("EPT %s: EPT misconfiguration, reserved bits set for non-leaf entry", bx_paging_level[leaf]));
vmexit_reason = VMX_VMEXIT_EPT_MISCONFIGURATION;
break;
}
}
if (!vmexit_reason && (access_mask & combined_access) != access_mask) {