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-rw-r--r--src/arch/x86/miscregfile.cc12
1 files changed, 4 insertions, 8 deletions
diff --git a/src/arch/x86/miscregfile.cc b/src/arch/x86/miscregfile.cc
index d52d56915..46ee3a7db 100644
--- a/src/arch/x86/miscregfile.cc
+++ b/src/arch/x86/miscregfile.cc
@@ -106,6 +106,8 @@ void MiscRegFile::clear()
{
// Blank everything. 0 might not be an appropriate value for some things.
memset(regVal, 0, NumMiscRegs * sizeof(MiscReg));
+ //Set the local apic DFR to the flat model.
+ regVal[MISCREG_APIC_DESTINATION_FORMAT] = (MiscReg)(-1);
}
MiscReg MiscRegFile::readRegNoEffect(int miscReg)
@@ -151,12 +153,6 @@ MiscReg MiscRegFile::readReg(int miscReg, ThreadContext * tc)
case MISCREG_APIC_EOI:
panic("Local APIC EOI register unimplemented.\n");
break;
- case MISCREG_APIC_LOGICAL_DESTINATION:
- panic("Local APIC Logical Destination register unimplemented.\n");
- break;
- case MISCREG_APIC_DESTINATION_FORMAT:
- panic("Local APIC Destination Format register unimplemented.\n");
- break;
case MISCREG_APIC_ERROR_STATUS:
regVal[MISCREG_APIC_INTERNAL_STATE] &= ~ULL(0x1);
break;
@@ -237,10 +233,10 @@ void MiscRegFile::setReg(int miscReg,
panic("Local APIC EOI register unimplemented.\n");
break;
case MISCREG_APIC_LOGICAL_DESTINATION:
- panic("Local APIC Logical Destination register unimplemented.\n");
+ newVal = val & 0xFF000000;
break;
case MISCREG_APIC_DESTINATION_FORMAT:
- panic("Local APIC Destination Format register unimplemented.\n");
+ newVal = val | 0x0FFFFFFF;
break;
case MISCREG_APIC_SPURIOUS_INTERRUPT_VECTOR:
regVal[MISCREG_APIC_INTERNAL_STATE] &= ~ULL(1 << 1);