[Xen-changelog] [qemu-upstream-unstable] kvm/apic: fix 2.2->2.1 migration

[patchbot@xxxxxxx]

commit 3e04f97cbc904fc8196774758c76343b3ee9ef6a
Author:     Paolo Bonzini <pbonzini@xxxxxxxxxx>
AuthorDate: Wed Dec 10 16:56:46 2014 +0100
Commit:     Michael Roth <mdroth@xxxxxxxxxxxxxxxxxx>
CommitDate: Sun Mar 1 18:13:00 2015 -0600

    kvm/apic: fix 2.2->2.1 migration
    
    The wait_for_sipi field is set back to 1 after an INIT, so it was not
    effective to reset it in kvm_apic_realize.  Introduce a reset callback
    and reset wait_for_sipi there.
    
    Reported-by: Igor Mammedov <imammedo@xxxxxxxxxx>
    Cc: qemu-stable@xxxxxxxxxx
    Reviewed-by: Dr. David Alan Gilbert <dgilbert@xxxxxxxxxx>
    Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
    (cherry picked from commit 575a6f4082c45778b93032ef1e7fbea4467b3a2a)
    Signed-off-by: Michael Roth <mdroth@xxxxxxxxxxxxxxxxxx>
---
 hw/i386/kvm/apic.c              |   10 +++++++---
 hw/intc/apic_common.c           |    5 +++++
 include/hw/i386/apic_internal.h |    1 +
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/hw/i386/kvm/apic.c b/hw/i386/kvm/apic.c
index 271e97f..5b47056 100644
--- a/hw/i386/kvm/apic.c
+++ b/hw/i386/kvm/apic.c
@@ -171,12 +171,15 @@ static const MemoryRegionOps kvm_apic_io_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static void kvm_apic_realize(DeviceState *dev, Error **errp)
+static void kvm_apic_reset(APICCommonState *s)
 {
-    APICCommonState *s = APIC_COMMON(dev);
-
     /* Not used by KVM, which uses the CPU mp_state instead.  */
     s->wait_for_sipi = 0;
+}
+
+static void kvm_apic_realize(DeviceState *dev, Error **errp)
+{
+    APICCommonState *s = APIC_COMMON(dev);
 
     memory_region_init_io(&s->io_memory, NULL, &kvm_apic_io_ops, s, 
"kvm-apic-msi",
                           APIC_SPACE_SIZE);
@@ -191,6 +194,7 @@ static void kvm_apic_class_init(ObjectClass *klass, void 
*data)
     APICCommonClass *k = APIC_COMMON_CLASS(klass);
 
     k->realize = kvm_apic_realize;
+    k->reset = kvm_apic_reset;
     k->set_base = kvm_apic_set_base;
     k->set_tpr = kvm_apic_set_tpr;
     k->get_tpr = kvm_apic_get_tpr;
diff --git a/hw/intc/apic_common.c b/hw/intc/apic_common.c
index 4e62f25..d9bb188 100644
--- a/hw/intc/apic_common.c
+++ b/hw/intc/apic_common.c
@@ -178,6 +178,7 @@ bool apic_next_timer(APICCommonState *s, int64_t 
current_time)
 void apic_init_reset(DeviceState *dev)
 {
     APICCommonState *s = APIC_COMMON(dev);
+    APICCommonClass *info = APIC_COMMON_GET_CLASS(s);
     int i;
 
     if (!s) {
@@ -206,6 +207,10 @@ void apic_init_reset(DeviceState *dev)
         timer_del(s->timer);
     }
     s->timer_expiry = -1;
+
+    if (info->reset) {
+        info->reset(s);
+    }
 }
 
 void apic_designate_bsp(DeviceState *dev)
diff --git a/include/hw/i386/apic_internal.h b/include/hw/i386/apic_internal.h
index 83e2a42..dc7a89d 100644
--- a/include/hw/i386/apic_internal.h
+++ b/include/hw/i386/apic_internal.h
@@ -89,6 +89,7 @@ typedef struct APICCommonClass
     void (*external_nmi)(APICCommonState *s);
     void (*pre_save)(APICCommonState *s);
     void (*post_load)(APICCommonState *s);
+    void (*reset)(APICCommonState *s);
 } APICCommonClass;
 
 struct APICCommonState {
--
generated by git-patchbot for /home/xen/git/qemu-upstream-unstable.git

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