# HG changeset patch
# User kaf24@localhost.localdomain
# Date Fri Oct 27 18:02:40 2006 +0100
# Node ID ee140fbcb88df2e55259b0c6519de7645641468a
# parent: a1939d76c0e8e27bdac5233df7bd78c004ea8deb
[HVM] Ensure that, if AP is blocked, it is woken by interrupt delivered by IOAPIC.

This fixes 64-bit SMP Windows 2k3 boot.

Signed-off-by: Xiaowei Yang <xiaowei.yang@intel.com>
Signed-off-by: Xin Li <xin.b.li@intel.com>

Index: xen-3.0.3-testing/xen/arch/x86/hvm/vioapic.c
===================================================================
--- xen-3.0.3-testing.orig/xen/arch/x86/hvm/vioapic.c
+++ xen-3.0.3-testing/xen/arch/x86/hvm/vioapic.c
@@ -39,6 +39,7 @@
 #include <asm/hvm/vpic.h>
 #include <asm/hvm/support.h>
 #include <asm/current.h>
+#include <asm/event.h>
 
 /* HACK: Route IRQ0 only to VCPU0 to prevent time jumps. */
 #define IRQ0_SPECIAL_ROUTING 1
@@ -436,9 +437,10 @@ static void ioapic_deliver(hvm_vioapic_t
 #endif
             target = apic_round_robin(s->domain, dest_mode,
                                       vector, deliver_bitmask);
-        if (target)
+        if (target) {
             ioapic_inj_irq(s, target, vector, trig_mode, delivery_mode);
-        else
+            vcpu_kick(target->vcpu);
+        } else
             HVM_DBG_LOG(DBG_LEVEL_IOAPIC,
               "null round robin mask %x vector %x delivery_mode %x\n",
               deliver_bitmask, vector, dest_LowestPrio);
@@ -448,6 +450,7 @@ static void ioapic_deliver(hvm_vioapic_t
     case dest_Fixed:
     case dest_ExtINT:
     {
+        struct vlapic* target;
         uint8_t bit;
         for (bit = 0; bit < s->lapic_count; bit++) {
             if (deliver_bitmask & (1 << bit)) {
@@ -458,9 +461,10 @@ static void ioapic_deliver(hvm_vioapic_t
                     domain_crash_synchronous();
                 }
 #endif
-                if (s->lapic_info[bit]) {
-                    ioapic_inj_irq(s, s->lapic_info[bit],
-                                vector, trig_mode, delivery_mode);
+                target = s->lapic_info[bit];
+                if (target) {
+                    ioapic_inj_irq(s, target, vector, trig_mode, delivery_mode);
+                    vcpu_kick(target->vcpu);
                 }
             }
         }