[Qemu-devel] [PATCH v2 06/12] apic_common: fixing loading vmstate

[Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>]

This patch adds missed sipi_vector and wait_for_sipi fields to the new
subsection of the vmstate of the apic_common module. Saving and loading
of these fields makes migration of the apic state deterministic.

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
---
 hw/intc/apic_common.c |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/hw/intc/apic_common.c b/hw/intc/apic_common.c
index ce3d903..2d2dfcb 100644
--- a/hw/intc/apic_common.c
+++ b/hw/intc/apic_common.c
@@ -345,6 +345,23 @@ static int apic_dispatch_post_load(void *opaque, int version_id)
     return 0;
 }
 
+static bool apic_common_sipi_needed(void *opaque)
+{
+    APICCommonState *s = APIC_COMMON(opaque);
+    return s->wait_for_sipi != 0;
+}
+
+static const VMStateDescription vmstate_apic_common_sipi = {
+    .name = "apic_sipi",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .fields = (VMStateField[]) {
+        VMSTATE_INT32(sipi_vector, APICCommonState),
+        VMSTATE_INT32(wait_for_sipi, APICCommonState),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
 static const VMStateDescription vmstate_apic_common = {
     .name = "apic",
     .version_id = 3,
@@ -375,6 +392,13 @@ static const VMStateDescription vmstate_apic_common = {
         VMSTATE_INT64(timer_expiry,
                       APICCommonState), /* open-coded timer state */
         VMSTATE_END_OF_LIST()
+    },
+    .subsections = (VMStateSubsection[]) {
+        {
+            .vmsd = &vmstate_apic_common_sipi,
+            .needed = apic_common_sipi_needed,
+        },
+        VMSTATE_END_OF_LIST()
     }
 };