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X86: Add some DPRINTFs to the local APIC.

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This commit is contained in:
Gabe Black 2008-10-12 23:27:45 -07:00
parent be6055e0f2
commit fd37688294
1 changed files with 18 additions and 3 deletions
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21
src/arch/x86/interrupts.cc
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@ -474,14 +474,20 @@ bool
X86ISA::Interrupts::check_interrupts(ThreadContext * tc) const X86ISA::Interrupts::check_interrupts(ThreadContext * tc) const
{ {
RFLAGS rflags = tc->readMiscRegNoEffect(MISCREG_RFLAGS); RFLAGS rflags = tc->readMiscRegNoEffect(MISCREG_RFLAGS);
if (pendingUnmaskableInt) if (pendingUnmaskableInt) {
DPRINTF(LocalApic, "Reported pending unmaskable interrupt.\n");
return true; return true;
}
if (rflags.intf) { if (rflags.intf) {
if (pendingExtInt) if (pendingExtInt) {
DPRINTF(LocalApic, "Reported pending external interrupt.\n");
return true; return true;
}
if (IRRV > ISRV && bits(IRRV, 7, 4) > if (IRRV > ISRV && bits(IRRV, 7, 4) >
bits(regs[APIC_TASK_PRIORITY], 7, 4)) bits(regs[APIC_TASK_PRIORITY], 7, 4)) {
DPRINTF(LocalApic, "Reported pending regular interrupt.\n");
return true; return true;
}
} }
return false; return false;
} }
@ -494,10 +500,13 @@ X86ISA::Interrupts::getInterrupt(ThreadContext * tc)
// check for. // check for.
if (pendingUnmaskableInt) { if (pendingUnmaskableInt) {
if (pendingSmi) { if (pendingSmi) {
DPRINTF(LocalApic, "Generated SMI fault object.\n");
return new SystemManagementInterrupt(); return new SystemManagementInterrupt();
} else if (pendingNmi) { } else if (pendingNmi) {
DPRINTF(LocalApic, "Generated NMI fault object.\n");
return new NonMaskableInterrupt(nmiMessage.vector); return new NonMaskableInterrupt(nmiMessage.vector);
} else if (pendingInit) { } else if (pendingInit) {
DPRINTF(LocalApic, "Generated INIT fault object.\n");
return new InitInterrupt(initMessage.vector); return new InitInterrupt(initMessage.vector);
} else { } else {
panic("pendingUnmaskableInt set, but no unmaskable " panic("pendingUnmaskableInt set, but no unmaskable "
@ -505,8 +514,10 @@ X86ISA::Interrupts::getInterrupt(ThreadContext * tc)
return NoFault; return NoFault;
} }
} else if (pendingExtInt) { } else if (pendingExtInt) {
DPRINTF(LocalApic, "Generated external interrupt fault object.\n");
return new ExternalInterrupt(extIntMessage.vector); return new ExternalInterrupt(extIntMessage.vector);
} else { } else {
DPRINTF(LocalApic, "Generated regular interrupt fault object.\n");
// The only thing left are fixed and lowest priority interrupts. // The only thing left are fixed and lowest priority interrupts.
return new ExternalInterrupt(IRRV); return new ExternalInterrupt(IRRV);
} }
@ -518,10 +529,13 @@ X86ISA::Interrupts::updateIntrInfo(ThreadContext * tc)
assert(check_interrupts(tc)); assert(check_interrupts(tc));
if (pendingUnmaskableInt) { if (pendingUnmaskableInt) {
if (pendingSmi) { if (pendingSmi) {
DPRINTF(LocalApic, "SMI sent to core.\n");
pendingSmi = false; pendingSmi = false;
} else if (pendingNmi) { } else if (pendingNmi) {
DPRINTF(LocalApic, "NMI sent to core.\n");
pendingNmi = false; pendingNmi = false;
} else if (pendingInit) { } else if (pendingInit) {
DPRINTF(LocalApic, "Init sent to core.\n");
pendingInit = false; pendingInit = false;
} }
if (!(pendingSmi || pendingNmi || pendingInit)) if (!(pendingSmi || pendingNmi || pendingInit))
@ -529,6 +543,7 @@ X86ISA::Interrupts::updateIntrInfo(ThreadContext * tc)
} else if (pendingExtInt) { } else if (pendingExtInt) {
pendingExtInt = false; pendingExtInt = false;
} else { } else {
DPRINTF(LocalApic, "Interrupt %d sent to core.\n", IRRV);
// Mark the interrupt as "in service". // Mark the interrupt as "in service".
ISRV = IRRV; ISRV = IRRV;
setRegArrayBit(APIC_IN_SERVICE_BASE, ISRV); setRegArrayBit(APIC_IN_SERVICE_BASE, ISRV);