linux-kernel - Re: [PATCH v5 00/10] Introduce In Field Scan driver

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Message-ID: <13054c5c-ed48-b7a2-a800-25b9b1b1ab0d@redhat.com>
Date:   Mon, 2 May 2022 17:15:39 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Tony Luck <tony.luck@...el.com>, markgross@...nel.org
Cc:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        corbet@....net, gregkh@...uxfoundation.org,
        andriy.shevchenko@...ux.intel.com, jithu.joseph@...el.com,
        ashok.raj@...el.com, rostedt@...dmis.org, dan.j.williams@...el.com,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, patches@...ts.linux.dev,
        ravi.v.shankar@...el.com
Subject: Re: [PATCH v5 00/10] Introduce In Field Scan driver

Hi,

On 4/28/22 17:38, Tony Luck wrote:
> Hopefully this is close enough to done to begin discussion on which
> maintainer tree will take this series.
> 
> Choices:
> 1) Hans/Mark take it into the platform-drivers tree
>    Needs an Ack from x86 maintainers on parts 1 & 2
> 2) X86 maintainers take it into TIP
>    Needs Ack from Hans/Mark on parts 2-10

I've taken a quick look at the entire series and it looks good to me.

I'm fine with this entire series getting merged through the TIP
tree, here is my ack for merging the drivers/platform/x86 bits
through the TIP tree:

Acked-by: Hans de Goede <hdegoede@...hat.com>

Regards,

Hans






> 
> TL;DR this driver loads scan test files that can check whether silicon
> in a CPU core is still running correctly. It is expected that these tests
> would be run several times per day to catch problems as silicon ages.
> 
> Changes since v4:
> 
> Greg Kroah-Hartman
> ------------------
>  "Cute way to do this, but I don't see you ever have any more devices
>  added to this list in this series."
> 
>  Removed the enum, arrays, loops, and count of test types discovered.
>  Now just check for enumeration of the single test type that is being
>  deployed on Sapphire Rapids.
> 
> 
> Jithu Joseph (7):
>   x86/microcode/intel: Expose collect_cpu_info_early() for IFS
>   platform/x86/intel/ifs: Read IFS firmware image
>   platform/x86/intel/ifs: Check IFS Image sanity
>   platform/x86/intel/ifs: Authenticate and copy to secured memory
>   platform/x86/intel/ifs: Add scan test support
>   platform/x86/intel/ifs: Add IFS sysfs interface
>   platform/x86/intel/ifs: add ABI documentation for IFS
> 
> Tony Luck (3):
>   x86/msr-index: Define INTEGRITY_CAPABILITIES MSR
>   platform/x86/intel/ifs: Add stub driver for In-Field Scan
>   trace: platform/x86/intel/ifs: Add trace point to track Intel IFS
>     operations
> 
>  .../ABI/testing/sysfs-platform-intel-ifs      |  39 ++
>  MAINTAINERS                                   |   8 +
>  arch/x86/include/asm/cpu.h                    |  18 +
>  arch/x86/include/asm/msr-index.h              |   7 +
>  arch/x86/kernel/cpu/intel.c                   |  32 ++
>  arch/x86/kernel/cpu/microcode/intel.c         |  59 +---
>  drivers/platform/x86/intel/Kconfig            |   1 +
>  drivers/platform/x86/intel/Makefile           |   1 +
>  drivers/platform/x86/intel/ifs/Kconfig        |  13 +
>  drivers/platform/x86/intel/ifs/Makefile       |   3 +
>  drivers/platform/x86/intel/ifs/core.c         |  80 +++++
>  drivers/platform/x86/intel/ifs/ifs.h          | 123 +++++++
>  drivers/platform/x86/intel/ifs/load.c         | 262 ++++++++++++++
>  drivers/platform/x86/intel/ifs/runtest.c      | 332 ++++++++++++++++++
>  drivers/platform/x86/intel/ifs/sysfs.c        | 147 ++++++++
>  include/trace/events/intel_ifs.h              |  38 ++
>  16 files changed, 1111 insertions(+), 52 deletions(-)
>  create mode 100644 Documentation/ABI/testing/sysfs-platform-intel-ifs
>  create mode 100644 drivers/platform/x86/intel/ifs/Kconfig
>  create mode 100644 drivers/platform/x86/intel/ifs/Makefile
>  create mode 100644 drivers/platform/x86/intel/ifs/core.c
>  create mode 100644 drivers/platform/x86/intel/ifs/ifs.h
>  create mode 100644 drivers/platform/x86/intel/ifs/load.c
>  create mode 100644 drivers/platform/x86/intel/ifs/runtest.c
>  create mode 100644 drivers/platform/x86/intel/ifs/sysfs.c
>  create mode 100644 include/trace/events/intel_ifs.h
> 
> 
> base-commit: af2d861d4cd2a4da5137f795ee3509e6f944a25b