This commit adds IsDefined flag to the object and this helps in avoiding
extra checks for every single layer of caches in both x86 and ARM.

Signed-off-by: Alireza Sanaee <alireza.san...@huawei.com>
---
 hw/core/machine-smp.c | 2 ++
 include/hw/boards.h   | 1 +
 2 files changed, 3 insertions(+)

diff --git a/hw/core/machine-smp.c b/hw/core/machine-smp.c
index 9a28194676..5a02bbf584 100644
--- a/hw/core/machine-smp.c
+++ b/hw/core/machine-smp.c
@@ -371,6 +371,8 @@ bool machine_parse_smp_cache(MachineState *ms,
         return false;
     }
 
+    ms->smp_cache.IsDefined = true;
+
     return true;
 }
 
diff --git a/include/hw/boards.h b/include/hw/boards.h
index db2aa2b706..2883a57084 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -373,6 +373,7 @@ typedef struct CpuTopology {
 
 typedef struct SmpCache {
     SmpCacheProperties props[CACHE_LEVEL_AND_TYPE__MAX];
+    bool IsDefined;
 } SmpCache;
 
 /**
-- 
2.34.1


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