[edk2-devel] [edk2-platforms][PATCH v3 1/5] MdeModulePkg: Allow dynamic generation of HEST ACPI table
Omkar Anand Kulkarni
omkar.kulkarni at arm.com
Tue Aug 24 05:33:59 UTC 2021
Introduce the HEST table generation protocol that allows platforms to
build the table with multiple error source descriptors and install the
table. The protocol provides two interfaces. The first interface allows
for adding multiple error source descriptors into the HEST table. The
second interface can then be used to dynamically install the fully
populated HEST table. This allows multiple drivers and/or libraries to
dynamically register error source descriptors into the HEST table.
Co-authored-by: Thomas Abraham <thomas.abraham at arm.com>
Signed-off-by: Omkar Anand Kulkarni <omkar.kulkarni at arm.com>
---
MdeModulePkg/MdeModulePkg.dec | 3 +
MdeModulePkg/Universal/Apei/HestDxe/HestDxe.inf | 49 +++
MdeModulePkg/Include/Protocol/HestTable.h | 71 +++++
MdeModulePkg/Universal/Apei/HestDxe/HestDxe.c | 318 ++++++++++++++++++++
4 files changed, 441 insertions(+)
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index ad84421cf3f7..2cb4ba69d6bf 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -663,6 +663,9 @@
## Include/Protocol/VariablePolicy.h
gEdkiiVariablePolicyProtocolGuid = { 0x81D1675C, 0x86F6, 0x48DF, { 0xBD, 0x95, 0x9A, 0x6E, 0x4F, 0x09, 0x25, 0xC3 } }
+ ## Arm Platform HEST table generation protocol
+ gHestTableProtocolGuid = { 0x705bdcd9, 0x8c47, 0x457e, { 0xad, 0x0d, 0xf7, 0x86, 0xf3, 0x4a, 0x0d, 0x63 } }
+
[PcdsFeatureFlag]
## Indicates if the platform can support update capsule across a system reset.<BR><BR>
# TRUE - Supports update capsule across a system reset.<BR>
diff --git a/MdeModulePkg/Universal/Apei/HestDxe/HestDxe.inf b/MdeModulePkg/Universal/Apei/HestDxe/HestDxe.inf
new file mode 100644
index 000000000000..91c7385bf7ff
--- /dev/null
+++ b/MdeModulePkg/Universal/Apei/HestDxe/HestDxe.inf
@@ -0,0 +1,49 @@
+## @file
+# Dxe driver that creates and publishes the HEST table.
+#
+# This driver creates HEST header and provides protocol service to append
+# and install the HEST table.
+#
+# Copyright (c) 2020 - 2021, ARM Limited. All rights reserved.
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x0001001A
+ BASE_NAME = HestDxe
+ FILE_GUID = 933099a2-ef71-4e00-82aa-a79b1e0a3b38
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = HestInitialize
+
+[Sources.Common]
+ HestDxe.c
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ ArmPlatformPkg/ArmPlatformPkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+ Platform/ARM/SgiPkg/SgiPlatform.dec
+
+[LibraryClasses]
+ ArmLib
+ BaseMemoryLib
+ DebugLib
+ UefiDriverEntryPoint
+ UefiLib
+
+[Protocols]
+ gEfiAcpiTableProtocolGuid ## PROTOCOL ALWAYS_CONSUMED
+ gHestTableProtocolGuid ## PRODUCES
+
+[FixedPcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultCreatorId
+ gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultCreatorRevision
+ gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultOemId
+ gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultOemRevision
+ gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultOemTableId
+
+[Depex]
+ TRUE
diff --git a/MdeModulePkg/Include/Protocol/HestTable.h b/MdeModulePkg/Include/Protocol/HestTable.h
new file mode 100644
index 000000000000..3b2e1f7d9203
--- /dev/null
+++ b/MdeModulePkg/Include/Protocol/HestTable.h
@@ -0,0 +1,71 @@
+/** @file
+ Builds and installs the HEST ACPI table.
+
+ Define the protocol interface that allows HEST ACPI table to be created,
+ populated with error record descriptions and installation of the HEST ACPI
+ table.
+
+ Copyright (c) 2020 - 2021, ARM Limited. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef HEST_TABLE_H_
+#define HEST_TABLE_H_
+
+#define HEST_TABLE_PROTOCOL_GUID \
+ { \
+ 0x705bdcd9, 0x8c47, 0x457e, \
+ { 0xad, 0x0d, 0xf7, 0x86, 0xf3, 0x4a, 0x0d, 0x63 } \
+ }
+
+/**
+ Append HEST error source descriptor protocol service.
+
+ Protocol service used to append newly collected error source descriptors to
+ to an already created HEST table.
+
+ @param[in] ErrorSourceDescriptorList List of Error Source Descriptors.
+ @param[in] ErrorSourceDescriptorListSize Total Size of Error Source
+ Descriptors.
+ @param[in] ErrorSourceDescriptorCount Total count of error source
+ descriptors.
+
+ @retval EFI_SUCCESS Appending the error source descriptors
+ successful.
+ @retval EFI_OUT_OF_RESOURCES Buffer reallocation failed for the Hest
+ table.
+ @retval EFI_INVALID_PARAMETER Null ErrorSourceDescriptorList param or
+**/
+typedef
+EFI_STATUS
+(EFIAPI *APPEND_ERROR_SOURCE_DESCRIPTOR) (
+ IN CONST VOID *ErrorSourceDescriptorList,
+ IN UINTN ErrorSourceDescriptorListSize,
+ IN UINTN ErrorSourceDescriptorCount
+ );
+
+/**
+ Install HEST table protocol service.
+
+ Installs the HEST table that has been appended with the error source
+ descriptors. The checksum of this table is calculated and updated in
+ the table header. The HEST table is then installed.
+
+ @retval EFI_SUCCESS HEST table is installed successfully.
+ @retval EFI_ABORTED HEST table is NULL.
+ @retval Other Install service call failed.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *INSTALL_HEST_TABLE) (VOID);
+
+//
+// HEST_TABLE_PROTOCOL enables creation and installation of HEST table
+//
+typedef struct {
+ APPEND_ERROR_SOURCE_DESCRIPTOR AppendErrorSourceDescriptors;
+ INSTALL_HEST_TABLE InstallHestTable;
+} HEST_TABLE_PROTOCOL;
+
+extern EFI_GUID gHestTableProtocolGuid;
+#endif // HEST_TABLE_H_
diff --git a/MdeModulePkg/Universal/Apei/HestDxe/HestDxe.c b/MdeModulePkg/Universal/Apei/HestDxe/HestDxe.c
new file mode 100644
index 000000000000..87f21acf61f4
--- /dev/null
+++ b/MdeModulePkg/Universal/Apei/HestDxe/HestDxe.c
@@ -0,0 +1,318 @@
+/** @file
+ Builds and installs the HEST ACPI table.
+
+ This driver installs a protocol that can be used to create and install a HEST
+ ACPI table. The protocol allows one or more error source producers to add the
+ error source descriptors into the HEST table. It also allows the resulting
+ HEST table to be installed.
+
+ Copyright (c) 2020 - 2021, ARM Limited. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ @par Specification Reference:
+ - ACPI 6.3, Table 18-382, Hardware Error Source Table
+**/
+
+#include <IndustryStandard/Acpi.h>
+#include <Library/ArmLib.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Protocol/AcpiSystemDescriptionTable.h>
+#include <Protocol/AcpiTable.h>
+#include <Protocol/HestTable.h>
+
+typedef struct {
+ VOID *HestTable; /// Pointer to HEST table.
+ UINT32 CurrentTableSize; /// Current size of HEST table.
+} HEST_DXE_DRIVER_DATA;
+
+STATIC EFI_ACPI_TABLE_PROTOCOL *mAcpiTableProtocol = NULL;
+STATIC HEST_DXE_DRIVER_DATA mHestDriverData;
+
+/**
+ Allocate memory for the HEST table header and populate it.
+
+ Helper function for this driver, populates the HEST table header. Called once
+ in the beginning on first invocation of append error source descriptor
+ protocol service.
+
+ @retval EFI_SUCCESS On successful creation of HEST header.
+ @retval EFI_OUT_OF_RESOURCES If system is out of memory recources.
+**/
+STATIC
+EFI_STATUS
+BuildHestHeader (
+ VOID
+ )
+{
+ EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_HEADER *HestHeader;
+
+ //
+ // Allocate memory for the HEST table header.
+ //
+ mHestDriverData.HestTable =
+ AllocateZeroPool (sizeof (EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_HEADER));
+ if (mHestDriverData.HestTable == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ mHestDriverData.CurrentTableSize =
+ sizeof (EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_HEADER);
+
+ HestHeader = (EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_HEADER *)
+ mHestDriverData.HestTable;
+
+ //
+ // Populate the values of the HEST table header.
+ //
+ HestHeader->Header.Signature =
+ EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_SIGNATURE;
+ HestHeader->Header.Revision =
+ EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_REVISION;
+ CopyMem (
+ &HestHeader->Header.OemId,
+ FixedPcdGetPtr (PcdAcpiDefaultOemId),
+ sizeof (HestHeader->Header.OemId)
+ );
+ HestHeader->Header.OemTableId = FixedPcdGet64 (PcdAcpiDefaultOemTableId);
+ HestHeader->Header.OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
+ HestHeader->Header.CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
+ HestHeader->Header.CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
+ HestHeader->ErrorSourceCount = 0;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Append HEST error source descriptor protocol service.
+
+ Protocol service used to append newly collected error source descriptors to
+ to an already created HEST table.
+
+ @param[in] ErrorSourceDescriptorList List of Error Source Descriptors.
+ @param[in] ErrorSourceDescriptorListSize Total Size of Error Source
+ Descriptors.
+ @param[in] ErrorSourceDescriptorCount Total count of error source
+ descriptors.
+
+ @retval EFI_SUCCESS Appending the error source descriptors
+ successful.
+ @retval EFI_OUT_OF_RESOURCES Buffer reallocation failed for the Hest
+ table.
+ @retval EFI_INVALID_PARAMETER Null ErrorSourceDescriptorList param or
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+AppendErrorSourceDescriptor (
+ IN CONST VOID *ErrorSourceDescriptorList,
+ IN UINTN ErrorSourceDescriptorListSize,
+ IN UINTN ErrorSourceDescriptorCount
+ )
+{
+ EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_HEADER *HestHeaderPtr;
+ EFI_STATUS Status;
+ UINT32 NewTableSize;
+ VOID *ErrorDescriptorPtr;
+
+ if ((ErrorSourceDescriptorList == NULL) ||
+ (ErrorSourceDescriptorListSize == 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Create a HEST table header if not already created.
+ //
+ if (mHestDriverData.HestTable == NULL) {
+ Status = BuildHestHeader ();
+ if (Status == EFI_OUT_OF_RESOURCES) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: Failed to build HEST header, status: %r\n",
+ __FUNCTION__,
+ Status
+ ));
+ return Status;
+ }
+ }
+
+ //
+ // Resize the existing HEST table buffer to accommodate the incoming error
+ // source descriptors.
+ //
+ NewTableSize = mHestDriverData.CurrentTableSize +
+ ErrorSourceDescriptorListSize;
+ mHestDriverData.HestTable = ReallocatePool (
+ mHestDriverData.CurrentTableSize,
+ NewTableSize,
+ mHestDriverData.HestTable
+ );
+ if (mHestDriverData.HestTable == NULL) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: Failed to reallocate memory for HEST table\n",
+ __FUNCTION__
+ ));
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ //
+ // Copy the incoming error source descriptors into HEST table.
+ //
+ ErrorDescriptorPtr = (VOID *)mHestDriverData.HestTable +
+ mHestDriverData.CurrentTableSize;
+ HestHeaderPtr = (EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_HEADER *)
+ mHestDriverData.HestTable;
+ CopyMem (
+ ErrorDescriptorPtr,
+ ErrorSourceDescriptorList,
+ ErrorSourceDescriptorListSize
+ );
+ mHestDriverData.CurrentTableSize = NewTableSize;
+ HestHeaderPtr->Header.Length = mHestDriverData.CurrentTableSize;
+ HestHeaderPtr->ErrorSourceCount += ErrorSourceDescriptorCount;
+
+ DEBUG ((
+ DEBUG_INFO,
+ "HestDxe: %d Error source descriptor(s) added \n",
+ ErrorSourceDescriptorCount
+ ));
+ return EFI_SUCCESS;
+}
+
+/**
+ Install HEST table protocol service.
+
+ Installs the HEST table that has been appended with the error source
+ descriptors. The checksum of this table is calculated and updated in
+ the table header. The HEST table is then installed.
+
+ @retval EFI_SUCCESS HEST table is installed successfully.
+ @retval EFI_ABORTED HEST table is NULL.
+ @retval Other Install service call failed.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+InstallHestAcpiTable (
+ VOID
+ )
+{
+ EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_HEADER *HestHeader;
+ EFI_STATUS Status;
+ UINTN AcpiTableHandle;
+
+ //
+ // Check if we have valid HEST table data. If not, there no hardware error
+ // sources supported by the platform and no HEST table to publish, return.
+ //
+ if (mHestDriverData.HestTable == NULL) {
+ DEBUG ((
+ DEBUG_INFO,
+ "HestDxe: No data available to generate HEST table\n"
+ ));
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // Valid data for HEST table found. Update the header checksum and install the
+ // HEST table.
+ //
+ HestHeader = (EFI_ACPI_6_3_HARDWARE_ERROR_SOURCE_TABLE_HEADER *)
+ mHestDriverData.HestTable;
+
+ Status = mAcpiTableProtocol->InstallAcpiTable (
+ mAcpiTableProtocol,
+ HestHeader,
+ HestHeader->Header.Length,
+ &AcpiTableHandle
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: HEST table installation failed, status: %r\n",
+ __FUNCTION__,
+ Status
+ ));
+ return Status;
+ }
+
+ //
+ // Free the HEST table buffer.
+ //
+ FreePool (mHestDriverData.HestTable);
+ DEBUG ((
+ DEBUG_INFO,
+ "HestDxe: Installed HEST table \n"
+ ));
+ return Status;
+}
+
+//
+// HEST table generation protocol instance.
+//
+STATIC HEST_TABLE_PROTOCOL mHestProtocol = {
+ AppendErrorSourceDescriptor,
+ InstallHestAcpiTable
+};
+
+/**
+ The Entry Point for HEST Dxe driver.
+
+ This function installs the HEST table creation and installation protocol
+ services.
+
+ @param[in] ImageHandle Handle to the Efi image.
+ @param[in] SystemTable A pointer to the Efi System Table.
+
+ @retval EFI_SUCCESS On successful installation of protocol services and
+ location the ACPI table protocol.
+ @retval Other On Failure to locate ACPI table protocol or install
+ of HEST table generation protocol.
+**/
+EFI_STATUS
+EFIAPI
+HestInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_HANDLE Handle = NULL;
+ EFI_STATUS Status;
+
+ Status = gBS->LocateProtocol (
+ &gEfiAcpiTableProtocolGuid,
+ NULL,
+ (VOID **)&mAcpiTableProtocol
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: Failed to locate ACPI table protocol, status: %r\n",
+ __FUNCTION__,
+ Status
+ ));
+ return Status;
+ }
+
+ Status = gBS->InstallProtocolInterface (
+ &Handle,
+ &gHestTableProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &mHestProtocol
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: Failed to install HEST table generation protocol status: %r\n",
+ __FUNCTION__,
+ Status
+ ));
+ return Status;
+ }
+
+ return Status;
+}
--
2.17.1
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