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authorGabe Black <gblack@eecs.umich.edu>2009-04-26 02:09:27 -0700
committerGabe Black <gblack@eecs.umich.edu>2009-04-26 02:09:27 -0700
commit2f34a7eaeb6d82b745fbd57fa4cc31d874ed202c (patch)
treed92201550da7dd68146ef0e43b862c61611cab38 /src/dev/x86/i82094aa.cc
parent88ab4bb257265cee555baafb940cee42c12f159a (diff)
downloadgem5-2f34a7eaeb6d82b745fbd57fa4cc31d874ed202c.tar.xz
X86: Tell the function that sends int messages who to send to instead of figuring it out itself.
Diffstat (limited to 'src/dev/x86/i82094aa.cc')
-rw-r--r--src/dev/x86/i82094aa.cc34
1 files changed, 33 insertions, 1 deletions
diff --git a/src/dev/x86/i82094aa.cc b/src/dev/x86/i82094aa.cc
index 3f0ed9e96..ad9b29dd0 100644
--- a/src/dev/x86/i82094aa.cc
+++ b/src/dev/x86/i82094aa.cc
@@ -28,6 +28,7 @@
* Authors: Gabe Black
*/
+#include "arch/x86/interrupts.hh"
#include "arch/x86/intmessage.hh"
#include "dev/x86/i82094aa.hh"
#include "dev/x86/i8259.hh"
@@ -162,7 +163,38 @@ X86ISA::I82094AA::signalInterrupt(int line)
message.destMode = entry.destMode;
message.level = entry.polarity;
message.trigger = entry.trigger;
- intPort->sendMessage(message, sys->getMemoryMode() == Enums::timing);
+ ApicList apics;
+ int numContexts = sys->numContexts();
+ if (message.destMode == 0) {
+ if (message.deliveryMode == DeliveryMode::LowestPriority) {
+ panic("Lowest priority delivery mode from the "
+ "IO APIC aren't supported in physical "
+ "destination mode.\n");
+ }
+ if (message.destination == 0xFF) {
+ for (int i = 0; i < numContexts; i++) {
+ apics.push_back(i);
+ }
+ } else {
+ apics.push_back(message.destination);
+ }
+ } else {
+ for (int i = 0; i < numContexts; i++) {
+ std::map<int, Interrupts *>::iterator localApicIt =
+ localApics.find(i);
+ assert(localApicIt != localApics.end());
+ Interrupts *localApic = localApicIt->second;
+ if ((localApic->readReg(APIC_LOGICAL_DESTINATION) >> 24) &
+ message.destination) {
+ apics.push_back(localApicIt->first);
+ }
+ }
+ if (message.deliveryMode == DeliveryMode::LowestPriority) {
+ panic("Lowest priority delivery mode is not implemented.\n");
+ }
+ }
+ intPort->sendMessage(apics, message,
+ sys->getMemoryMode() == Enums::timing);
}
}