From: Jack Lange <jarusl@cs.northwestern.edu>
Date: Mon, 16 Mar 2009 23:24:55 +0000 (-0500)
Subject: added checks to only mark interrupts as taken if SVM says they've been
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=0b276ccfe1caf79b6c2752bf26d0e9933e52fb32

added checks to only mark interrupts as taken if SVM says they've been
---

diff --git a/palacios/include/palacios/vmm_intr.h b/palacios/include/palacios/vmm_intr.h
index 6008a66..be407c1 100644
--- a/palacios/include/palacios/vmm_intr.h
+++ b/palacios/include/palacios/vmm_intr.h
@@ -74,6 +74,9 @@ struct v3_intr_state {
     struct list_head controller_list;
 
 
+    uint_t irq_pending;
+    uint_t irq_vector;
+
     /* some way to get the [A]PIC intr */
     struct v3_irq_hook * hooks[256];
   
diff --git a/palacios/src/palacios/svm_handler.c b/palacios/src/palacios/svm_handler.c
index b89d28c..4d5ce3e 100644
--- a/palacios/src/palacios/svm_handler.c
+++ b/palacios/src/palacios/svm_handler.c
@@ -71,6 +71,11 @@ int v3_handle_svm_exit(struct guest_info * info) {
     exit_code = guest_ctrl->exit_code;
 
 
+    if ((info->intr_state.irq_pending) && (guest_ctrl->guest_ctrl.V_IRQ = 0)) {
+	// Interrupt was taken in the guest
+	v3_injecting_intr(info, info->intr_state.irq_vector, EXTERNAL_IRQ);
+	info->intr_state.irq_pending = 0;
+    }
 
   
 
@@ -362,7 +367,9 @@ int v3_handle_svm_exit(struct guest_info * info) {
 			   guest_ctrl->guest_ctrl.V_INTR_VECTOR, 
 			   (void *)(addr_t)info->rip);
 #endif
-		v3_injecting_intr(info, irq, EXTERNAL_IRQ);
+		info->intr_state.irq_pending = 1;
+		info->intr_state.irq_vector = irq;
+
 		    
 		break;
 	    }