Fix interrupt injection bug due to caching irq vectors after vector mappings have...

[palacios.git] / palacios / src / devices / 8259a.c

diff --git a/palacios/src/devices/8259a.c b/palacios/src/devices/8259a.c
index 443fb0a..34851dd 100644 (file)
--- a/palacios/src/devices/8259a.c
+++ b/palacios/src/devices/8259a.c
@@ -421,6 +421,8 @@ static int write_master_port1(ushort_t port, void * src, uint_t length, struct v
         return -1;
     }
 
+    v3_clear_pending_intr(dev->vm);
+
     if (IS_ICW1(cw)) {
 
         PrintDebug("8259 PIC: Setting ICW1 = %x (wr_Master1)\n", cw);
@@ -483,12 +485,16 @@ static int write_master_port2(ushort_t port, void * src, uint_t length, struct v
         return -1;
     }
 
+    v3_clear_pending_intr(dev->vm);
+
     if (state->master_state == ICW2) {
         struct icw1 * cw1 = (struct icw1 *)&(state->master_icw1);
 
         PrintDebug("8259 PIC: Setting ICW2 = %x (wr_Master2)\n", cw);
         state->master_icw2 = cw;
 
+
+
         if (cw1->sngl == 0) {
             state->master_state = ICW3;
         } else if (cw1->ic4 == 1) {
@@ -497,6 +503,8 @@ static int write_master_port2(ushort_t port, void * src, uint_t length, struct v
             state->master_state = READY;
         }
 
+
+
     } else if (state->master_state == ICW3) {
         struct icw1 * cw1 = (struct icw1 *)&(state->master_icw1);
 
@@ -539,6 +547,8 @@ static int write_slave_port1(ushort_t port, void * src, uint_t length, struct vm
        return -1;
     }
 
+    v3_clear_pending_intr(dev->vm);
+
     if (IS_ICW1(cw)) {
        PrintDebug("8259 PIC: Setting ICW1 = %x (wr_Slave1)\n", cw);
        state->slave_icw1 = cw;
@@ -597,6 +607,9 @@ static int write_slave_port2(ushort_t port, void * src, uint_t length, struct vm
         return -1;
     }
 
+    v3_clear_pending_intr(dev->vm);
+
+
     if (state->slave_state == ICW2) {
         struct icw1 * cw1 =  (struct icw1 *)&(state->master_icw1);