[Qemu-devel] [PATCH 1/9] hw/arm_gic: Remove NVIC ifdefs from gic_state struct

[Peter Maydell <peter.maydell@linaro.org>]

Remove some NVIC ifdefs from the gic_state struct and its
state save/load functions. This means there are some fields
in it which are present for the NVIC but not used, but means
it always has the same layout and can be pulled out into a
common subclass.

Note that the addition of irq_target[] to the save/load
struct for the NVIC requires a vmstate version bump.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm_gic.c |   15 +++------------
 1 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/hw/arm_gic.c b/hw/arm_gic.c
index 72298b4..17b2eba 100644
--- a/hw/arm_gic.c
+++ b/hw/arm_gic.c
@@ -108,9 +108,7 @@ typedef struct gic_state
     int cpu_enabled[NCPU];
 
     gic_irq_state irq_state[GIC_MAXIRQ];
-#ifndef NVIC
     int irq_target[GIC_MAXIRQ];
-#endif
     int priority1[GIC_INTERNAL][NCPU];
     int priority2[GIC_MAXIRQ - GIC_INTERNAL];
     int last_active[GIC_MAXIRQ][NCPU];
@@ -120,18 +118,14 @@ typedef struct gic_state
     int running_priority[NCPU];
     int current_pending[NCPU];
 
-#if NCPU > 1
     uint32_t num_cpu;
-#endif
 
     MemoryRegion iomem; /* Distributor */
-#ifndef NVIC
     /* This is just so we can have an opaque pointer which identifies
      * both this GIC and which CPU interface we should be accessing.
      */
     struct gic_state *backref[NCPU];
     MemoryRegion cpuiomem[NCPU+1]; /* CPU interfaces */
-#endif
     uint32_t num_irq;
 } gic_state;
 
@@ -800,9 +794,7 @@ static void gic_save(QEMUFile *f, void *opaque)
         qemu_put_be32(f, s->priority2[i]);
     }
     for (i = 0; i < s->num_irq; i++) {
-#ifndef NVIC
         qemu_put_be32(f, s->irq_target[i]);
-#endif
         qemu_put_byte(f, s->irq_state[i].enabled);
         qemu_put_byte(f, s->irq_state[i].pending);
         qemu_put_byte(f, s->irq_state[i].active);
@@ -818,8 +810,9 @@ static int gic_load(QEMUFile *f, void *opaque, int version_id)
     int i;
     int j;
 
-    if (version_id != 2)
+    if (version_id != 3) {
         return -EINVAL;
+    }
 
     s->enabled = qemu_get_be32(f);
     for (i = 0; i < NUM_CPU(s); i++) {
@@ -837,9 +830,7 @@ static int gic_load(QEMUFile *f, void *opaque, int version_id)
         s->priority2[i] = qemu_get_be32(f);
     }
     for (i = 0; i < s->num_irq; i++) {
-#ifndef NVIC
         s->irq_target[i] = qemu_get_be32(f);
-#endif
         s->irq_state[i].enabled = qemu_get_byte(f);
         s->irq_state[i].pending = qemu_get_byte(f);
         s->irq_state[i].active = qemu_get_byte(f);
@@ -914,7 +905,7 @@ static void gic_init(gic_state *s, int num_irq)
     }
 #endif
 
-    register_savevm(NULL, "arm_gic", -1, 2, gic_save, gic_load, s);
+    register_savevm(NULL, "arm_gic", -1, 3, gic_save, gic_load, s);
 }
 
 #ifndef NVIC
-- 
1.7.1