We don't need to bring the APs into a safe state at ExitBootServices() if only the BSP exists.
Cc: Chen Fan <[email protected]> Cc: Jeff Fan <[email protected]> Cc: Jordan Justen <[email protected]> Cc: Michael Kinney <[email protected]> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <[email protected]> --- Notes: v2: - split out as a separate patch - capitalize first letter of subject after "UefiCpuPkg/CpuDxe" prefix [Jeff] UefiCpuPkg/CpuDxe/CpuMp.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/UefiCpuPkg/CpuDxe/CpuMp.c b/UefiCpuPkg/CpuDxe/CpuMp.c index 5db83b0..b66f965 100644 --- a/UefiCpuPkg/CpuDxe/CpuMp.c +++ b/UefiCpuPkg/CpuDxe/CpuMp.c @@ -1795,14 +1795,16 @@ InitializeMpSupport ( (gMaxLogicalProcessorNumber - mMpSystemData.NumberOfProcessors) * gApStackSize)); } } - Status = gBS->CreateEvent ( - EVT_SIGNAL_EXIT_BOOT_SERVICES, - TPL_CALLBACK, - ExitBootServicesCallback, - NULL, - &mExitBootServicesEvent - ); - ASSERT_EFI_ERROR (Status); + if (mMpSystemData.NumberOfProcessors > 1) { + Status = gBS->CreateEvent ( + EVT_SIGNAL_EXIT_BOOT_SERVICES, + TPL_CALLBACK, + ExitBootServicesCallback, + NULL, + &mExitBootServicesEvent + ); + ASSERT_EFI_ERROR (Status); + } } -- 1.8.3.1 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
