[PATCH v3 2/6] i386/cpu: add IsDefined flag to smp-cache property

Alireza Sanaee via posted 6 patches 1 month, 2 weeks ago
[PATCH v3 2/6] i386/cpu: add IsDefined flag to smp-cache property
Posted by Alireza Sanaee via 1 month, 2 weeks ago
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.sanaee@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
Re: [PATCH v3 2/6] i386/cpu: add IsDefined flag to smp-cache property
Posted by Zhao Liu 1 month, 1 week ago
Hi Alireze,

On Thu, Oct 10, 2024 at 12:18:18PM +0100, Alireza Sanaee wrote:
> Date: Thu, 10 Oct 2024 12:18:18 +0100
> From: Alireza Sanaee <alireza.sanaee@huawei.com>
> Subject: [PATCH v3 2/6] i386/cpu: add IsDefined flag to smp-cache property
> X-Mailer: git-send-email 2.34.1
> 
> 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.sanaee@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;
>  
>  /**

Thanks for your patch, now I've added this commit in my series to
resolve my TODO, which can also help your series be more ARM-focused :).

I will post my next version soon.

Thanks,
Zhao