Today the delay is 10us but the QSP simulates the multiprocessor by dividing time into segments and serializing processors within a segment. The length of the segment is configurable and Simics open board is configured using 100us.
But the firmware configures the delay between INIT and SIPI is 10us. That results a possible senarino that BSP sends a INIT and SIPI in one segment (100us) while APs are still in SMM environment. The INIT is queued but SIPI is ignored by Simics, resulting all APs being put in wait-for-SIPI state when they receive INIT. Signed-off-by: Ray Ni <ray...@intel.com> Cc: Nate DeSimone <nathaniel.l.desim...@intel.com> Cc: Zhiguang Liu <zhiguang....@intel.com> --- .../Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/Platform/Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc b/Platform/Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc index 732d95e44f..06c479b619 100644 --- a/Platform/Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc +++ b/Platform/Intel/SimicsOpenBoardPkg/BoardX58Ich10/OpenBoardPkgPcd.dsc @@ -1,7 +1,7 @@ ## @file # PCD configuration build description file for the X58Ich10 board. # -# Copyright (c) 2019 - 2022, Intel Corporation. All rights reserved. <BR> +# Copyright (c) 2019 - 2023, Intel Corporation. All rights reserved. <BR> # # SPDX-License-Identifier: BSD-2-Clause-Patent # @@ -148,7 +148,6 @@ gPcAtChipsetPkgTokenSpaceGuid.PcdAcpiIoPortBaseAddressMask|0xFFFC gPcAtChipsetPkgTokenSpaceGuid.PcdAcpiPm1TmrOffset|0x0008 gUefiCpuPkgTokenSpaceGuid.PcdCpuApStackSize|0x1000 - gUefiCpuPkgTokenSpaceGuid.PcdCpuInitIpiDelayInMicroSeconds|10 gUefiCpuPkgTokenSpaceGuid.PcdCpuMaxLogicalProcessorNumber|512 gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmApSyncTimeout|10000 gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmStackSize|0x4000 -- 2.37.2.windows.2 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#105432): https://edk2.groups.io/g/devel/message/105432 Mute This Topic: https://groups.io/mt/99215876/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/leave/9847357/21656/1706620634/xyzzy [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
