From 9c2433ce0ad5e850d6fca4980fc82f74660e3099 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@redhat.com>
Date: Thu, 21 May 2009 17:08:36 -0700
Subject: [PATCH 07/15] kvm: qemu: initialize irq routing table

Signed-off-by: Avi Kivity <avi@redhat.com>
(cherry picked from commit 30479349eae863705fbc9fb7d2542e64e3101bc7)
Signed-off-by: Chris Wright <chrisw@redhat.com>
Bugzilla: 498084
Message-Id: <1242950924-30161-6-git-send-email-chrisw@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
RH-Upstream-status: applied
Acked-by: Juan Quintela <quintela@redhat.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Acked-by: Don Dutile <ddutile@redhat.com>
---
 qemu/qemu-kvm.c |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/qemu/qemu-kvm.c b/qemu/qemu-kvm.c
index 143958a..e4124b8 100644
--- a/qemu/qemu-kvm.c
+++ b/qemu/qemu-kvm.c
@@ -778,6 +778,8 @@ static int destroy_region_works = 0;
 int kvm_qemu_create_context(void)
 {
     int r;
+    int i;
+
     if (!kvm_irqchip) {
         kvm_disable_irqchip_creation(kvm_context);
     }
@@ -800,6 +802,28 @@ int kvm_qemu_create_context(void)
 #ifdef TARGET_I386
     destroy_region_works = kvm_destroy_memory_region_works(kvm_context);
 #endif
+
+    if (kvm_irqchip && kvm_has_gsi_routing(kvm_context)) {
+        kvm_clear_gsi_routes(kvm_context);
+        for (i = 0; i < 8; ++i) {
+            if (i == 2)
+                continue;
+            r = kvm_add_irq_route(kvm_context, i, KVM_IRQCHIP_PIC_MASTER, i);
+            if (r < 0)
+                return r;
+        }
+        for (i = 8; i < 16; ++i) {
+            r = kvm_add_irq_route(kvm_context, i, KVM_IRQCHIP_PIC_SLAVE, i - 8);
+            if (r < 0)
+                return r;
+        }
+        for (i = 0; i < 24; ++i) {
+            r = kvm_add_irq_route(kvm_context, i, KVM_IRQCHIP_IOAPIC, i);
+            if (r < 0)
+                return r;
+        }
+        kvm_commit_irq_routes(kvm_context);
+    }
     return 0;
 }
 
-- 
1.6.3.rc4.29.g8146