Re: [PATCH 18/25] OvmfPkg/ResetSystemLib: Add new API ResetSystem

["Laszlo Ersek" <lersek@redhat.com>]

On 04/15/19 05:06, Zhichao Gao wrote:
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1460
> 
> Add a new API ResetSystem to this ResetSystemLib instance.
> It only adds the basic functions from ResetSystemRuntimeDxe.
> Lacking of this interface may cause link error, if some drivers
> use this new API and link to this library instance.
> Notes:
> This library API only provide a basic function of reset. Full
> function should use the instance in the MdeModulePkg and make
> sure the depex driver is dispatched.
> 
> Cc: Jordan Justen <jordan.l.justen@intel.com>
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> Cc: Liming Gao <liming.gao@intel.com>
> Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
> ---
>  .../Library/ResetSystemLib/ResetSystemLib.c   | 43 +++++++++++++++++++
>  1 file changed, 43 insertions(+)
> 
> diff --git a/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c b/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
> index c2c7736aa8..c05a87ad51 100644
> --- a/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
> +++ b/OvmfPkg/Library/ResetSystemLib/ResetSystemLib.c
> @@ -140,3 +140,46 @@ ResetPlatformSpecific (
>  {
>    ResetCold ();
>  }
> +
> +/**
> +  The ResetSystem function resets the entire platform.
> +
> +  @param[in] ResetType      The type of reset to perform.
> +  @param[in] ResetStatus    The status code for the reset.
> +  @param[in] DataSize       The size, in bytes, of ResetData.
> +  @param[in] ResetData      For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown
> +                            the data buffer starts with a Null-terminated string, optionally
> +                            followed by additional binary data. The string is a description
> +                            that the caller may use to further indicate the reason for the
> +                            system reset.
> +**/
> +VOID
> +EFIAPI
> +ResetSystem (
> +  IN EFI_RESET_TYPE               ResetType,
> +  IN EFI_STATUS                   ResetStatus,
> +  IN UINTN                        DataSize,
> +  IN VOID                         *ResetData OPTIONAL
> +  )
> +{
> +  switch (ResetType) {
> +  case EfiResetWarm:
> +    ResetWarm ();
> +    break;
> +
> +  case EfiResetCold:
> +    ResetCold ();
> +    break;
> +
> +  case EfiResetShutdown:
> +    ResetShutdown ();
> +    return ;
> +
> +  case EfiResetPlatformSpecific:
> +    ResetPlatformSpecific (DataSize, ResetData);
> +    return;
> +
> +  default:
> +    return ;
> +  }
> +}
> 

For patches 18/25 and 23/25]:

- please replace

    return ;

  with

    return;

  (there are two instances in both patches)

- with that update, for both patches:

Reviewed-by: Laszlo Ersek <lersek@redhat.com>

Thanks
Laszlo