|
 |
9d39cf |
The microcode_ctl package contains microcode files (vendor-provided binary data
|
|
|
9d39cf |
and/or code in proprietary format that affects behaviour of a device) for Intel
|
|
|
9d39cf |
CPUs that may be loaded into the CPU during boot.
|
|
|
9d39cf |
|
|
|
9d39cf |
This directory contains information regarding various aspects of the provided
|
|
|
9d39cf |
microcode files and their usage.
|
|
|
9d39cf |
|
|
|
9d39cf |
* LICENSE.intel-ucode
|
|
|
9d39cf |
"license" file from the Intel x86 CPU microcode archive.
|
|
|
9d39cf |
* README
|
|
|
9d39cf |
This file.
|
|
|
9d39cf |
* README.caveats
|
|
|
9d39cf |
Caveats (mechanism for enabling/disabling usage of sets of microcode files
|
|
|
9d39cf |
based on caveat configuration and user preferences) documentation.
|
|
|
9d39cf |
Also contains general information about microcode update behaviour and links
|
|
|
9d39cf |
with additional information about the relevant microarchitectural
|
|
|
9d39cf |
vulnerabilities.
|
|
|
9d39cf |
* README.intel-ucode
|
|
|
9d39cf |
"README.md" file from the Intel x86 CPU microcode archive.
|
|
|
9d39cf |
* RELEASE_NOTES.intel-ucode
|
|
|
9d39cf |
"releasenote.md" file from the Intel x86 CPU microcode archive.
|
|
|
9d39cf |
* SECURITY.intel-ucode
|
|
|
9d39cf |
"security.md" file from the Intel x86 CPU microcode archive.
|
|
|
9d39cf |
* SUMMARY.intel-ucode
|
|
|
cc944f |
Information about supplied microcode files extracted from their headers,
|
|
|
cc944f |
in a table form. Columns have the following meaning:
|
|
|
cc944f |
* "Path": path to the microcode file under one of the following directories:
|
|
|
cc944f |
* /usr/share/microcode_ctl/ucode_with_caveats/intel
|
|
|
cc944f |
* /usr/share/microcode_ctl/ucode_with_caveats
|
|
|
cc944f |
* /usr/share/microcode_ctl
|
|
|
cc944f |
* /lib/firmware
|
|
|
cc944f |
* /etc/firmware
|
|
|
cc944f |
* "Offset": offset of the microcode blob within the micocode file in bytes.
|
|
|
cc944f |
* "Ext. Offset": offset of the extended signature header within
|
|
|
cc944f |
the microcode file in bytes.
|
|
|
cc944f |
* "Data Size": size of microcode data in bytes. 0 means 2000 bytes.
|
|
|
cc944f |
* "Total Size": size of microcode blob in bytes, incuding headers.
|
|
|
cc944f |
0 means 2048 bytes.
|
|
|
cc944f |
* "CPUID": CPU ID signature (in format returned by the CPUID instruction).
|
|
|
cc944f |
* "Platform ID Mask": mask of suitable Platform IDs (provided in bits
|
|
|
cc944f |
52..50 of MSR 0x17).
|
|
|
cc944f |
* "Revision": microcode revision.
|
|
|
cc944f |
* "Date": microcode creation date.
|
|
|
cc944f |
* "Checksum": sum (in base 1<< 32) of all 32-bit values comprising
|
|
|
cc944f |
the microcode (from Offset up to Offset + Total Size).
|
|
|
cc944f |
* "Codenames": list of known CPU codenames associated with the CPUID
|
|
|
cc944f |
and Platform ID Mask combination.
|
|
|
cc944f |
Please refer to README.cavets, section "Microcode file structure"
|
|
|
cc944f |
for additional information regarding microcode header fields.
|
|
|
9d39cf |
* caveats
|
|
|
cc944f |
Directory that contains readme files for each specific caveat.
|