[edk2-devel] [PATCH v2 0/4] ArmPlatformPkg: Add support to generate HEST ACPI table
Sami Mujawar
sami.mujawar at arm.com
Tue Jul 27 08:54:10 UTC 2021
Hi Omkar,
I will pick this up for review this week.
Regards,
Sami Mujawar
On 26/07/2021, 15:52, "Omkar Kulkarni" <Omkar.Kulkarni at arm.com> wrote:
Gentle reminder to review this patch series.
Regards,
Omkar
> Changes since v1:
> - Helper added for HEST ACPI table generation.
> - Rebased to the latest upstream code.
>
> Hardware Error Source Table (HEST)[1] and Software Delegated Exception
> Interface
> (SDEI)[2] ACPI tables are used to acomplish firmware first error handling.This
> patch series introduces a framework to build and install the HEST ACPI table
> dynamically.
>
> The following figure illustrates the possible usage of the dyanamic
> generation of HEST ACPI table.
>
> NS | S
> +--------------------------------------+--------------------------------------+
> | | |
> |+-------------------------------------+---------------------+ |
> || +---------------------+--------------------+| |
> || | | || |
> || +-----------+ |+------------------+ | +-----------------+|| +-------------+|
> || |HestTable | || HestErrorSource | | | HestErrorSource ||| | DMC-620
> ||
> || | DXE | || DXE | | | StandaloneMM ||| |Standalone MM||
> || +-----------+ |+------------------+ | +-----------------+|| +-------------+|
> || |GHESv2 | || |
> || +---------------------+--------------------+| |
> || +--------------------+ | | |
> || |PlatformErrorHandler| | | |
> || | DXE | | | |
> || +--------------------+ | | |
> ||FF FWK | | |
> |+-------------------------------------+---------------------+ |
> | | |
> +--------------------------------------+--------------------------------------+
> |
> Figure: Firmware First Error Handling approach.
>
> All the hardware error sources are added to HEST table as GHESv2[3] error
> source
> descriptors. The framework comprises of following DXE and MM drivers:
>
> - HestTableDxe:
> Builds HEST table header and allows appending error source descriptors to
> the
> HEST table. Also provides protocol interface to install the built HEST table.
>
> - HestErrorSourceDxe & HestErrorSourceStandaloneMM:
> These two drivers together retrieve all possible error source descriptors of
> type GHESv2 from the MM drivers implementing HEST Error Source
> Descriptor
> protocol. Once all the descriptors are collected HestErrorSourceDxe
> appends
> it to HEST table using HestTableDxe driver.
>
> - PlatformErrorHandlerDxe:
> Builds and installs SDEI ACPI table. This driver does not initialize(load)
> until HestErrorSourceDxe driver has finished appending all possible GHESv2
> error source descriptors to the HEST table. Once that is complete using the
> HestTableDxe driver it installs the HEST table.
>
> This patch series provides reference implementation for DMC-620 Dynamic
> Memory
> Controller[4] that has RAS feature enabled. This is platform code
> implemented as Standalone MM driver in edk2-platforms.
>
> References:
> [1] : ACPI 6.3, Table 18-382, Hardware Error Source Table
> [2] : SDEI Platform Design Document, revision b, 10 Appendix C, ACPI table
> definitions for SDEI
> [3] : ACPI Reference Specification 6.3, Table 18-393 GHESv2 Structure
> [4] : DMC620 Dynamic Memory Controller, revision r1p0
> [5] : UEFI Reference Specification 2.8, Appendix N - Common Platform Error
> Record
> [6] : UEFI Reference Specification 2.8, Section N.2.5 Memory Error Section
>
> Link to github branch with the patches in this series -
> https://github.com/omkkul01/edk2/tree/ras_firmware_first_edk2
>
> Omkar Anand Kulkarni (4):
> ArmPlatformPkg: Allow dynamic generation of HEST ACPI table
> ArmPlatformPkg: add definition for
> MM_HEST_ERROR_SOURCE_DESC_PROTOCOL
> ArmPlatformPkg: retreive error source descriptors from MM
> ArmPlatformPkg: Add helpers for HEST table generation
>
> ArmPlatformPkg/ArmPlatformPkg.dec | 12 +
> .../Drivers/Apei/HestDxe/HestDxe.inf | 49 +++
> .../HestMmErrorSources/HestErrorSourceDxe.inf | 44 +++
> .../HestErrorSourceStandaloneMm.inf | 51 +++
> .../HestMmErrorSourceCommon.h | 37 ++
> ArmPlatformPkg/Include/HestAcpiHeader.h | 49 +++
> .../Include/Protocol/HestErrorSourceInfo.h | 64 ++++
> ArmPlatformPkg/Include/Protocol/HestTable.h | 71 ++++
> ArmPlatformPkg/Drivers/Apei/HestDxe/HestDxe.c | 354
> ++++++++++++++++++
> .../HestMmErrorSources/HestErrorSourceDxe.c | 308 +++++++++++++++
> .../HestErrorSourceStandaloneMm.c | 312 +++++++++++++++
> 11 files changed, 1351 insertions(+)
> create mode 100644 ArmPlatformPkg/Drivers/Apei/HestDxe/HestDxe.inf
> create mode 100644
> ArmPlatformPkg/Drivers/HestMmErrorSources/HestErrorSourceDxe.inf
> create mode 100644
> ArmPlatformPkg/Drivers/HestMmErrorSources/HestErrorSourceStandalone
> Mm.inf
> create mode 100644
> ArmPlatformPkg/Drivers/HestMmErrorSources/HestMmErrorSourceCommo
> n.h
> create mode 100644 ArmPlatformPkg/Include/HestAcpiHeader.h
> create mode 100644
> ArmPlatformPkg/Include/Protocol/HestErrorSourceInfo.h
> create mode 100644 ArmPlatformPkg/Include/Protocol/HestTable.h
> create mode 100644 ArmPlatformPkg/Drivers/Apei/HestDxe/HestDxe.c
> create mode 100644
> ArmPlatformPkg/Drivers/HestMmErrorSources/HestErrorSourceDxe.c
> create mode 100644
> ArmPlatformPkg/Drivers/HestMmErrorSources/HestErrorSourceStandalone
> Mm.c
>
> --
> 2.17.1
>
>
>
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