[PULL,22/28] apic: move MAX_APICS check to 'apic' class

Commit Message

Eduardo Habkost July 20, 2016, 3:08 p.m. UTC

From: Igor Mammedov <[e-mail]>

MAX_APICS is only used by child 'apic' class and not
by its parent TYPE_APIC_COMMON or any other derived
class.

Move check into end user 'apic' class so it won't
get in the way of other APIC implementations
if they support more then MAX_APICS.

Signed-off-by: Igor Mammedov <[e-mail]>
Reviewed-by: Radim Krčmář <[e-mail]>
Reviewed-by: Michael S. Tsirkin <[e-mail]>
Signed-off-by: Eduardo Habkost <[e-mail]>
---
 hw/intc/apic.c                  | 10 ++++++++++
 hw/intc/apic_common.c           |  8 --------
 include/hw/i386/apic_internal.h |  4 +---
 3 files changed, 11 insertions(+), 11 deletions(-)

Patch

diff --git a/hw/intc/apic.c b/hw/intc/apic.c
index e1ab935..b0d237b 100644
--- a/hw/intc/apic.c
+++ b/hw/intc/apic.c
@@ -28,7 +28,9 @@ 
 #include "trace.h"
 #include "hw/i386/pc.h"
 #include "hw/i386/apic-msidef.h"
+#include "qapi/error.h"
 
+#define MAX_APICS 255
 #define MAX_APIC_WORDS 8
 
 #define SYNC_FROM_VAPIC                 0x1
@@ -869,6 +871,14 @@  static const MemoryRegionOps apic_io_ops = {
 static void apic_realize(DeviceState *dev, Error **errp)
 {
     APICCommonState *s = APIC_COMMON(dev);
+    static int apic_no;
+
+    if (apic_no >= MAX_APICS) {
+        error_setg(errp, "%s initialization failed.",
+                   object_get_typename(OBJECT(dev)));
+        return;
+    }
+    s->idx = apic_no++;
 
     memory_region_init_io(&s->io_memory, OBJECT(s), &apic_io_ops, s, "apic-msi",
                           APIC_SPACE_SIZE);
diff --git a/hw/intc/apic_common.c b/hw/intc/apic_common.c
index e6eb694..fd425d1 100644
--- a/hw/intc/apic_common.c
+++ b/hw/intc/apic_common.c
@@ -299,14 +299,6 @@  static void apic_common_realize(DeviceState *dev, Error **errp)
     APICCommonState *s = APIC_COMMON(dev);
     APICCommonClass *info;
     static DeviceState *vapic;
-    static int apic_no;
-
-    if (apic_no >= MAX_APICS) {
-        error_setg(errp, "%s initialization failed.",
-                   object_get_typename(OBJECT(dev)));
-        return;
-    }
-    s->idx = apic_no++;
 
     info = APIC_COMMON_GET_CLASS(s);
     info->realize(dev, errp);
diff --git a/include/hw/i386/apic_internal.h b/include/hw/i386/apic_internal.h
index 73ce716..67348e9 100644
--- a/include/hw/i386/apic_internal.h
+++ b/include/hw/i386/apic_internal.h
@@ -121,8 +121,6 @@ 
 #define VAPIC_ENABLE_BIT                0
 #define VAPIC_ENABLE_MASK               (1 << VAPIC_ENABLE_BIT)
 
-#define MAX_APICS 255
-
 typedef struct APICCommonState APICCommonState;
 
 #define TYPE_APIC_COMMON "apic-common"
@@ -176,7 +174,7 @@  struct APICCommonState {
     uint32_t initial_count;
     int64_t initial_count_load_time;
     int64_t next_time;
-    int idx;
+    int idx; /* not actually common, used only by 'apic' derived class */
     QEMUTimer *timer;
     int64_t timer_expiry;
     int sipi_vector;