On Thu, Nov 02, 2023 at 11:42:22AM +0000, Muralidhara M K wrote: > From: Muralidhara M K <muralidhara.mk@xxxxxxx> > > 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)" <bp@xxxxxxxxx> 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) <bp@xxxxxxxxx> --- 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 -- 2.42.0.rc0.25.ga82fb66fed25 -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette
