kvm: x86: Add support for x86 INIT and STARTUP handling

This changeset adds support for INIT and STARTUP IPI handling. We
currently handle both of these interrupts in gem5 and transfer the
state to KVM. Since we do not have a BIOS loaded, we pretend that the
INIT interrupt suspends the CPU after reset.

--HG--
extra : rebase_source : 7f3b25f3801d68f668b6cd91eaf50d6f48ee2a6a

1 files changed, 6 insertions, 0 deletions

diff --git a/src/arch/x86/interrupts.hh b/src/arch/x86/interrupts.hh
index 8997d7402..dabee5441 100644
--- a/src/arch/x86/interrupts.hh
+++ b/src/arch/x86/interrupts.hh
@@ -281,6 +281,12 @@ class Interrupts : public BasicPioDevice, IntDevice
      * @return true if there are interrupts pending.
      */
     bool checkInterruptsRaw() const;
+    /**
+     * Check if there are pending unmaskable interrupts.
+     *
+     * @return true there are unmaskable interrupts pending.
+     */
+    bool hasPendingUnmaskable() const { return pendingUnmaskableInt; }
     Fault getInterrupt(ThreadContext *tc);
     void updateIntrInfo(ThreadContext *tc);