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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 <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Chandana Kumar <chandana.c.kumar@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Eric Dong 2019-04-10 11:00:04 +08:00
parent d47b85a621
commit 92b5a2eabc
1 changed files with 35 additions and 1 deletions
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36
UefiCpuPkg/Include/Library/MpInitLib.h
View File

@ -1,7 +1,7 @@
/** @file
Multiple-Processor initialization Library.
Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@ -344,4 +344,38 @@ 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. TimeoutInMicroseconds is ignored
for BSP.
@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_ERROR Caller 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