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arm: correctly assign faulting IPA's to HPFAR_EL2

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This patch corrects IPA reporting if the translation faults in a
stage 2 lookup.

Change-Id: I0b914527f8a9f98a5e980a131cf9d03e5584b4e9
This commit is contained in:
Dylan Johnson 2016-08-02 10:38:03 +01:00
parent 4d5d47c173
commit bce923c189
1 changed files with 11 additions and 1 deletions
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12
src/arch/arm/faults.cc
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@ -969,7 +969,17 @@ AbortFault<T>::invoke(ThreadContext *tc, const StaticInstPtr &inst)
} else { // AArch64
// Set the FAR register. Nothing else to do if we are in AArch64 state
// because the syndrome register has already been set inside invoke64()
tc->setMiscReg(AbortFault<T>::getFaultAddrReg64(), faultAddr);
if (stage2) {
// stage 2 fault, set HPFAR_EL2 to the faulting IPA
// and FAR_EL2 to the Original VA
tc->setMiscReg(AbortFault<T>::getFaultAddrReg64(), OVAddr);
tc->setMiscReg(MISCREG_HPFAR_EL2, bits(faultAddr, 47, 12) << 4);
DPRINTF(Faults, "Abort Fault (Stage 2) VA: 0x%x IPA: 0x%x\n",
OVAddr, faultAddr);
} else {
tc->setMiscReg(AbortFault<T>::getFaultAddrReg64(), faultAddr);
}
}
}