X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_intr.c;h=02b8fbd4091f54562feae3e26f17c3d0781639c9;hb=ad00932be31579b80f80c1cc67677bd3c263fd89;hp=a30659fe26d7d205b1bc9f76f826a5ec51bbe8d3;hpb=ff5e516d100f73849193c59c2af2cc3cd3e41f21;p=palacios.git

diff --git a/palacios/src/palacios/vmm_intr.c b/palacios/src/palacios/vmm_intr.c
index a30659f..02b8fbd 100644
--- a/palacios/src/palacios/vmm_intr.c
+++ b/palacios/src/palacios/vmm_intr.c
@@ -239,6 +239,18 @@ int v3_deliver_irq(struct v3_vm_info * vm, struct v3_interrupt * intr) {
 
 
 
+int v3_raise_swintr (struct guest_info * core, uint8_t vector) {
+    struct v3_intr_core_state * intr_state = &(core->intr_core_state);
+
+    PrintDebug("Signaling software interrupt in v3_signal_swintr()\n");
+    PrintDebug("\tINT vector: %d\n", vector);
+    
+    intr_state->swintr_posted = 1;
+    intr_state->swintr_vector = vector;
+    return 0;
+}
+
+
 
 int v3_raise_virq(struct guest_info * info, int irq) {
     struct v3_intr_core_state * intr_state = &(info->intr_core_state);
@@ -262,38 +274,62 @@ int v3_lower_virq(struct guest_info * info, int irq) {
 
 
 int v3_lower_irq(struct v3_vm_info * vm, int irq) {
+    struct v3_irq irq_state;
+
+    irq_state.irq = irq;
+    irq_state.ack = NULL;
+    irq_state.private_data = NULL;
+
+    return v3_lower_acked_irq(vm, irq_state);
+}
+
+int v3_raise_irq(struct v3_vm_info * vm, int irq) {
+    struct v3_irq irq_state;
+
+    irq_state.irq = irq;
+    irq_state.ack = NULL;
+    irq_state.private_data = NULL;
+
+    return v3_raise_acked_irq(vm, irq_state);
+}
+
+
+int v3_raise_acked_irq(struct v3_vm_info * vm, struct v3_irq irq) {
     struct intr_router * router = NULL;
     struct v3_intr_routers * routers = &(vm->intr_routers);
 
-    //    PrintDebug("[v3_lower_irq]\n");
+    //  PrintDebug("[v3_raise_irq (%d)]\n", irq);
     addr_t irq_state = v3_lock_irqsave(routers->irq_lock);
 
     list_for_each_entry(router, &(routers->router_list), router_node) {
-	router->router_ops->lower_intr(vm, router->priv_data, irq);
+	router->router_ops->raise_intr(vm, router->priv_data, &irq);
     }
- 
+
     v3_unlock_irqrestore(routers->irq_lock, irq_state);
 
     return 0;
 }
 
-int v3_raise_irq(struct v3_vm_info * vm, int irq) {
+
+int v3_lower_acked_irq(struct v3_vm_info * vm, struct v3_irq irq) {
     struct intr_router * router = NULL;
     struct v3_intr_routers * routers = &(vm->intr_routers);
 
-    //  PrintDebug("[v3_raise_irq (%d)]\n", irq);
+    //    PrintDebug("[v3_lower_irq]\n");
     addr_t irq_state = v3_lock_irqsave(routers->irq_lock);
 
     list_for_each_entry(router, &(routers->router_list), router_node) {
-	router->router_ops->raise_intr(vm, router->priv_data, irq);
+	router->router_ops->lower_intr(vm, router->priv_data, &irq);
     }
-
+ 
     v3_unlock_irqrestore(routers->irq_lock, irq_state);
 
     return 0;
+
 }
 
 
+
 void v3_clear_pending_intr(struct guest_info * core) {
     struct v3_intr_core_state * intr_state = &(core->intr_core_state);
 
@@ -311,7 +347,15 @@ v3_intr_type_t v3_intr_pending(struct guest_info * info) {
     //  PrintDebug("[intr_pending]\n");
     addr_t irq_state = v3_lock_irqsave(intr_state->irq_lock);
 
-    // VIRQs have priority
+    // External IRQs have lowest priority
+    list_for_each_entry(ctrl, &(intr_state->controller_list), ctrl_node) {
+	if (ctrl->ctrl_ops->intr_pending(info, ctrl->priv_data) == 1) {
+	    ret = V3_EXTERNAL_IRQ;
+	    break;
+	}
+    }   
+
+    // VIRQs have 2nd priority
     for (i = 0; i < MAX_IRQ / 8; i++) {
 	if (intr_state->virq_map[i] != 0) {   
 	    ret = V3_VIRTUAL_IRQ;
@@ -319,16 +363,7 @@ v3_intr_type_t v3_intr_pending(struct guest_info * info) {
 	}
     }
 
-    if (ret == V3_INVALID_INTR) {
-	list_for_each_entry(ctrl, &(intr_state->controller_list), ctrl_node) {
-	    if (ctrl->ctrl_ops->intr_pending(info, ctrl->priv_data) == 1) {
-		ret = V3_EXTERNAL_IRQ;
-		break;
-	    }
-	}
-    }
-    
-    /* for swintr injection */
+    /* SWINTRs have highest */
     if (intr_state->swintr_posted == 1) {
         ret = V3_SOFTWARE_INTR;
     }