Reviewed-by: Ray Ni
> -Original Message-
> From: devel@edk2.groups.io On Behalf Of Dong,
> Eric
> Sent: Monday, July 22, 2019 3:14 PM
> To: devel@edk2.groups.io
> Cc: Ni, Ray ; Laszlo Ersek ; Kumar,
> Chandana C ; Zeng, Star
>
> Subject: [edk2-devel] [Patch v2 1/6] UefiCpuPkg/Include/MpInitLib.h: Add
> MpInitLibStartupAllCPUs API.
>
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1973
>
> Add new MpInitLibStartupAllCPUs API uses to start all processors at the same
> time.
>
> Cc: Ray Ni
> Cc: Laszlo Ersek
> Cc: Chandana Kumar
> Cc: Star Zeng
> Signed-off-by: Eric Dong
> ---
> UefiCpuPkg/Include/Library/MpInitLib.h | 33
> ++
> 1 file changed, 33 insertions(+)
>
> diff --git a/UefiCpuPkg/Include/Library/MpInitLib.h
> b/UefiCpuPkg/Include/Library/MpInitLib.h
> index fa82529373..a943fbd9bc 100644
> --- a/UefiCpuPkg/Include/Library/MpInitLib.h
> +++ b/UefiCpuPkg/Include/Library/MpInitLib.h
> @@ -344,4 +344,37 @@ MpInitLibWhoAmI (
>OUT UINTN*ProcessorNumber
>);
>
> +/**
> + This service executes a caller provided function on all enabled CPUs.
> +
> + @param[in] Procedure A pointer to the function to be run on
> + enabled APs of the system. See type
> + EFI_AP_PROCEDURE.
> + @param[in] TimeoutInMicroseconds Indicates the time limit in
> microseconds for
> + APs to return from Procedure, either
> for
> + blocking or non-blocking mode. Zero
> means
> + infinity.
> + @param[in] ProcedureArgument The parameter passed into
> Procedure for
> + all APs.
> +
> + @retval EFI_SUCCESS In blocking mode, all CPUs have finished
> before
> + the timeout expired.
> + @retval EFI_SUCCESS In non-blocking mode, function has been
> dispatched
> + to all enabled CPUs.
> + @retval EFI_DEVICE_ERRORCaller processor is AP.
> + @retval EFI_NOT_READY Any enabled APs are busy.
> + @retval EFI_NOT_READY MP Initialize Library is not initialized.
> + @retval EFI_TIMEOUT In blocking mode, the timeout expired
> before
> + all enabled APs have finished.
> + @retval EFI_INVALID_PARAMETER Procedure is NULL.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +MpInitLibStartupAllCPUs (
> + IN EFI_AP_PROCEDURE Procedure,
> + IN UINTN TimeoutInMicroseconds,
> + IN VOID *ProcedureArgument OPTIONAL
> + );
> +
> #endif
> --
> 2.21.0.windows.1
>
>
>
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