On 11/28/2023 9:20 AM, Borislav Petkov wrote:
> On Thu, Nov 02, 2023 at 11:42:22AM +0000, Muralidhara M K wrote:
>> From: Muralidhara M K <[email protected]>
>>
>> AMD systems with Scalable MCA, each machine check error of a SMCA bank
>> type has an associated bit position in the bank's control (CTL) register.
>
> Ontop of this. It is long overdue:
>
> ---
> From: "Borislav Petkov (AMD)" <[email protected]>
> Date: Tue, 28 Nov 2023 14:37:56 +0100
>
> Add some initial RAS documentation. The expectation is for this to
> collect all the user-visible features for interacting with the RAS
> features of the kernel.
>
> Signed-off-by: Borislav Petkov (AMD) <[email protected]>
> ---
> Documentation/RAS/ras.rst | 26 ++++++++++++++++++++++++++
> Documentation/index.rst | 1 +
> 2 files changed, 27 insertions(+)
> create mode 100644 Documentation/RAS/ras.rst
>
> diff --git a/Documentation/RAS/ras.rst b/Documentation/RAS/ras.rst
> new file mode 100644
> index 000000000000..2556b397cd27
> --- /dev/null
> +++ b/Documentation/RAS/ras.rst
> @@ -0,0 +1,26 @@
> +.. SPDX-License-Identifier: GPL-2.0
> +
> +Reliability, Availability and Serviceability features
> +=====================================================
> +
> +This documents different aspects of the RAS functionality present in the
> +kernel.
> +
> +Error decoding
> +---------------
> +
> +* x86
> +
> +Error decoding on AMD systems should be done using the rasdaemon tool:
> +https://github.com/mchehab/rasdaemon/
> +
> +While the daemon is running, it would automatically log and decode
> +errors. If not, one can still decode such errors by supplying the
> +hardware information from the error::
> +
> + $ rasdaemon -p --status <STATUS> --ipid <IPID> --smca
> +
> +Also, the user can pass particular family and model to decode the error
> +string::
> +
> + $ rasdaemon -p --status <STATUS> --ipid <IPID> --smca --family <CPU Family> --model <CPU Model> --bank <BANK_NUM>
> diff --git a/Documentation/index.rst b/Documentation/index.rst
> index 9dfdc826618c..36e61783437c 100644
> --- a/Documentation/index.rst
> +++ b/Documentation/index.rst
> @@ -113,6 +113,7 @@ to ReStructured Text format, or are simply too old.
> :maxdepth: 1
>
> staging/index
> + RAS/ras
>
>
> Translations
Thanks for starting this. I'll add some notes for the AMD Address
Translation Library in the next revision.
Thanks,
Yazen