Reviewed-by: Ray Ni <ray...@intel.com> > -----Original Message----- > From: devel@edk2.groups.io <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 <ray...@intel.com>; Laszlo Ersek <ler...@redhat.com>; Kumar, > Chandana C <chandana.c.ku...@intel.com>; Zeng, Star > <star.z...@intel.com> > 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 <ray...@intel.com> > Cc: Laszlo Ersek <ler...@redhat.com> > Cc: Chandana Kumar <chandana.c.ku...@intel.com> > Cc: Star Zeng <star.z...@intel.com> > Signed-off-by: Eric Dong <eric.d...@intel.com> > --- > 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_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 > -- > 2.21.0.windows.1 > > >
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