[edk2-devel] 回复: [PATCH v2] MdeModulePkg/SetupBrowser: Load storage via GetVariable for EfiVarStore

["gaoliming via groups.io" <gaoliming=byosoft.com.cn@groups.io>]

Dandan:
  Have you collected the performance data for this enhancement? Is the
updated one better than before?

Thanks
Liming
> -----邮件原件-----
> 发件人: Dong, Eric <eric.dong@intel.com>
> 发送时间: 2023年7月31日 13:04
> 收件人: Bi, Dandan <dandan.bi@intel.com>; devel@edk2.groups.io
> 抄送: Gao, Liming <gaoliming@byosoft.com.cn>
> 主题: RE: [PATCH v2] MdeModulePkg/SetupBrowser: Load storage via
> GetVariable for EfiVarStore
> 
> Reviewed-by: Eric Dong <eric.dong@intel.com>
> 
> -----Original Message-----
> From: Bi, Dandan <dandan.bi@intel.com>
> Sent: Monday, July 31, 2023 8:46 AM
> To: devel@edk2.groups.io
> Cc: Gao, Liming <gaoliming@byosoft.com.cn>; Dong, Eric
> <eric.dong@intel.com>
> Subject: [PATCH v2] MdeModulePkg/SetupBrowser: Load storage via
> GetVariable for EfiVarStore
> 
> For EfiVarStore (EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER), it will call
> ExtractConfig-GetVariable-HiiBlockToConfig-ConfigToBlock when load storage
> value in LoadStorage function. It's not necessary and costs lots of time
to do
> the conversion between config and block.
> So now enhance it to call GetVariable directly.
> 
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Eric Dong <eric.dong@intel.com>
> Signed-off-by: Dandan Bi <dandan.bi@intel.com>
> ---
> v2: Fix coding style issue.
> 
>  .../Universal/SetupBrowserDxe/Setup.c         | 54 +++++++++++--------
>  1 file changed, 32 insertions(+), 22 deletions(-)
> 
> diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Setup.c
> b/MdeModulePkg/Universal/SetupBrowserDxe/Setup.c
> index 5158baf5bd..2f7b11b1aa 100644
> --- a/MdeModulePkg/Universal/SetupBrowserDxe/Setup.c
> +++ b/MdeModulePkg/Universal/SetupBrowserDxe/Setup.c
> @@ -5634,32 +5634,42 @@ LoadStorage (
>      ConfigRequest = Storage->ConfigRequest;
>    }
> 
> -  //
> -  // Request current settings from Configuration Driver
> -  //
> -  Status = mHiiConfigRouting->ExtractConfig (
> -                                mHiiConfigRouting,
> -                                ConfigRequest,
> -                                &Progress,
> -                                &Result
> -                                );
> -
> -  //
> -  // If get value fail, extract default from IFR binary
> -  //
> -  if (EFI_ERROR (Status)) {
> -    ExtractDefault (FormSet, NULL, EFI_HII_DEFAULT_CLASS_STANDARD,
> FormSetLevel, GetDefaultForStorage, Storage->BrowserStorage, TRUE,
> TRUE);
> -  } else {
> +  if (Storage->BrowserStorage->Type ==
> + EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
>      //
> -    // Convert Result from <ConfigAltResp> to <ConfigResp>
> +    // Call GetVariable directly for EfiVarStore
>      //
> -    StrPtr = StrStr (Result, L"&GUID=");
> -    if (StrPtr != NULL) {
> -      *StrPtr = L'\0';
> +    Status = gRT->GetVariable (Storage->BrowserStorage->Name,
> &(Storage->BrowserStorage->Guid), NULL, (UINTN
> *)(&(Storage->BrowserStorage->Size)),
> Storage->BrowserStorage->EditBuffer);
> +    if (EFI_ERROR (Status)) {
> +      ExtractDefault (FormSet, NULL,
> EFI_HII_DEFAULT_CLASS_STANDARD,
> + FormSetLevel, GetDefaultForStorage, Storage->BrowserStorage, TRUE,
> + TRUE);
>      }
> +  } else {
> +    //
> +    // Request current settings from Configuration Driver
> +    //
> +    Status = mHiiConfigRouting->ExtractConfig (
> +                                  mHiiConfigRouting,
> +                                  ConfigRequest,
> +                                  &Progress,
> +                                  &Result
> +                                  );
> 
> -    Status = ConfigRespToStorage (Storage->BrowserStorage, Result);
> -    FreePool (Result);
> +    //
> +    // If get value fail, extract default from IFR binary
> +    //
> +    if (EFI_ERROR (Status)) {
> +      ExtractDefault (FormSet, NULL, EFI_HII_DEFAULT_CLASS_STANDARD,
> FormSetLevel, GetDefaultForStorage, Storage->BrowserStorage, TRUE,
> TRUE);
> +    } else {
> +      //
> +      // Convert Result from <ConfigAltResp> to <ConfigResp>
> +      //
> +      StrPtr = StrStr (Result, L"&GUID=");
> +      if (StrPtr != NULL) {
> +        *StrPtr = L'\0';
> +      }
> +
> +      Status = ConfigRespToStorage (Storage->BrowserStorage, Result);
> +      FreePool (Result);
> +    }
>    }
> 
>    Storage->BrowserStorage->ConfigRequest = AllocateCopyPool (StrSize
> (Storage->ConfigRequest), Storage->ConfigRequest);
> --
> 2.39.1.windows.1





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