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Current AMD systems can report MCA errors using the ACPI Boot Error Record Table (BERT). The BERT entries for MCA errors will be an x86 Common Platform Error Record (CPER) with an MSR register context that matches the MCAX/SMCA register space. However, the BERT will not necessarily be processed on the CPU that reported the MCA errors. Therefore, the correct CPU number needs to be determined and the information saved in struct mce. Use the newly defined mce_prep_record_*() helpers to get the correct data. Also, add an explicit check to verify that a valid CPU number was found from the APIC ID search. Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Nikolay Borisov <nik.borisov@suse.com> Link: https://lore.kernel.org/r/20240730182958.4117158-4-yazen.ghannam@amd.com Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.