diff options
author | Dun Tan <dun.tan@intel.com> | 2023-11-24 15:53:33 +0800 |
---|---|---|
committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-12-12 01:37:41 +0000 |
commit | e10f1f5a043a402fb2daf2091b8f725fd2951743 (patch) | |
tree | ba8c9dff39b0d48e523fb476cf15132b0b04aa02 | |
parent | c02eed8e5a5497f26f2163d44c2239f5549f9fb0 (diff) | |
download | edk2-e10f1f5a043a402fb2daf2091b8f725fd2951743.zip edk2-e10f1f5a043a402fb2daf2091b8f725fd2951743.tar.gz edk2-e10f1f5a043a402fb2daf2091b8f725fd2951743.tar.bz2 |
UefiCpuPkg: Build MpInfo2HOB in CpuMpPei
Build MpInfo2HOB in CpuMpPei module so that later
PiSmmCpuDxe or other StandaloneMm module can consume
the HOB.
Since there might be more one gMpInformationHobGuid2
in HOB list, CpuMpPei create a gMpInformationHobGuid2
with 0 value NumberOfProcessors field in the end of the
process to indicate it's the last MP_INFORMATION2_HOB.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
-rw-r--r-- | UefiCpuPkg/CpuMpPei/CpuMpPei.c | 91 | ||||
-rw-r--r-- | UefiCpuPkg/CpuMpPei/CpuMpPei.h | 4 | ||||
-rw-r--r-- | UefiCpuPkg/CpuMpPei/CpuMpPei.inf | 3 |
3 files changed, 96 insertions, 2 deletions
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.c b/UefiCpuPkg/CpuMpPei/CpuMpPei.c index b504bea..e96a76c 100644 --- a/UefiCpuPkg/CpuMpPei/CpuMpPei.c +++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.c @@ -542,6 +542,92 @@ InitializeMpExceptionStackSwitchHandlers ( }
/**
+ Create gMpInformationHobGuid2.
+**/
+VOID
+BuildMpInformationHob (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ UINTN ProcessorIndex;
+ UINTN NumberOfProcessors;
+ UINTN NumberOfEnabledProcessors;
+ UINTN NumberOfProcessorsInHob;
+ UINTN MaxProcessorsPerHob;
+ MP_INFORMATION2_HOB_DATA *MpInformation2HobData;
+ MP_INFORMATION2_ENTRY *MpInformation2Entry;
+ UINTN Index;
+
+ ProcessorIndex = 0;
+ MpInformation2HobData = NULL;
+ MpInformation2Entry = NULL;
+
+ Status = MpInitLibGetNumberOfProcessors (&NumberOfProcessors, &NumberOfEnabledProcessors);
+ ASSERT_EFI_ERROR (Status);
+ MaxProcessorsPerHob = ((MAX_UINT16 & ~7) - sizeof (EFI_HOB_GUID_TYPE) - sizeof (MP_INFORMATION2_HOB_DATA)) / sizeof (MP_INFORMATION2_ENTRY);
+ NumberOfProcessorsInHob = MaxProcessorsPerHob;
+
+ //
+ // Create MP_INFORMATION2_HOB. when the max HobLength 0xFFF8 is not enough, there
+ // will be a MP_INFORMATION2_HOB series in the HOB list.
+ // In the HOB list, there is a gMpInformationHobGuid2 with 0 value NumberOfProcessors
+ // fields to indicate it's the last MP_INFORMATION2_HOB.
+ //
+ while (NumberOfProcessorsInHob != 0) {
+ NumberOfProcessorsInHob = MIN (NumberOfProcessors - ProcessorIndex, MaxProcessorsPerHob);
+ MpInformation2HobData = BuildGuidHob (
+ &gMpInformationHobGuid2,
+ sizeof (MP_INFORMATION2_HOB_DATA) + sizeof (MP_INFORMATION2_ENTRY) * NumberOfProcessorsInHob
+ );
+ ASSERT (MpInformation2HobData != NULL);
+
+ MpInformation2HobData->Version = MP_INFORMATION2_HOB_REVISION;
+ MpInformation2HobData->ProcessorIndex = ProcessorIndex;
+ MpInformation2HobData->NumberOfProcessors = (UINT16)NumberOfProcessorsInHob;
+ MpInformation2HobData->EntrySize = sizeof (MP_INFORMATION2_ENTRY);
+
+ DEBUG ((DEBUG_INFO, "Creating MpInformation2 HOB...\n"));
+
+ for (Index = 0; Index < NumberOfProcessorsInHob; Index++) {
+ MpInformation2Entry = &MpInformation2HobData->Entry[Index];
+ Status = MpInitLibGetProcessorInfo (
+ (Index + ProcessorIndex) | CPU_V2_EXTENDED_TOPOLOGY,
+ &MpInformation2Entry->ProcessorInfo,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+ DEBUG ((
+ DEBUG_INFO,
+ " Processor[%04d]: ProcessorId = 0x%lx, StatusFlag = 0x%x\n",
+ Index + ProcessorIndex,
+ MpInformation2Entry->ProcessorInfo.ProcessorId,
+ MpInformation2Entry->ProcessorInfo.StatusFlag
+ ));
+ DEBUG ((
+ DEBUG_INFO,
+ " Location = Package:%d Core:%d Thread:%d\n",
+ MpInformation2Entry->ProcessorInfo.Location.Package,
+ MpInformation2Entry->ProcessorInfo.Location.Core,
+ MpInformation2Entry->ProcessorInfo.Location.Thread
+ ));
+ DEBUG ((
+ DEBUG_INFO,
+ " Location2 = Package:%d Die:%d Tile:%d Module:%d Core:%d Thread:%d\n",
+ MpInformation2Entry->ProcessorInfo.ExtendedInformation.Location2.Package,
+ MpInformation2Entry->ProcessorInfo.ExtendedInformation.Location2.Die,
+ MpInformation2Entry->ProcessorInfo.ExtendedInformation.Location2.Tile,
+ MpInformation2Entry->ProcessorInfo.ExtendedInformation.Location2.Module,
+ MpInformation2Entry->ProcessorInfo.ExtendedInformation.Location2.Core,
+ MpInformation2Entry->ProcessorInfo.ExtendedInformation.Location2.Thread
+ ));
+ }
+
+ ProcessorIndex += NumberOfProcessorsInHob;
+ }
+}
+
+/**
Initializes MP and exceptions handlers.
@param PeiServices The pointer to the PEI Services Table.
@@ -602,6 +688,11 @@ InitializeCpuMpWorker ( Status = PeiServicesInstallPpi (mPeiCpuMpPpiList);
ASSERT_EFI_ERROR (Status);
+ //
+ // Create gMpInformationHobGuid2
+ //
+ BuildMpInformationHob ();
+
return Status;
}
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.h b/UefiCpuPkg/CpuMpPei/CpuMpPei.h index 1b9a94e..a40fd2c 100644 --- a/UefiCpuPkg/CpuMpPei/CpuMpPei.h +++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.h @@ -1,7 +1,7 @@ /** @file
Definitions to install Multiple Processor PPI.
- Copyright (c) 2015 - 2021, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2015 - 2023, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -30,6 +30,8 @@ #include <Library/MemoryAllocationLib.h>
#include <Library/CpuPageTableLib.h>
+#include <Guid/MpInformation2.h>
+
extern EFI_PEI_PPI_DESCRIPTOR mPeiCpuMpPpiDesc;
/**
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.inf b/UefiCpuPkg/CpuMpPei/CpuMpPei.inf index 865be56..812fa17 100644 --- a/UefiCpuPkg/CpuMpPei/CpuMpPei.inf +++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.inf @@ -1,7 +1,7 @@ ## @file
# CPU driver installs CPU PI Multi-processor PPI.
#
-# Copyright (c) 2015 - 2021, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2015 - 2023, Intel Corporation. All rights reserved.<BR>
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
##
@@ -50,6 +50,7 @@ [Guids]
gEdkiiMigratedFvInfoGuid ## SOMETIMES_CONSUMES ## HOB
+ gMpInformationHobGuid2 ## PRODUCES
[Ppis]
gEfiPeiMpServicesPpiGuid ## PRODUCES
|