You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
2.5 KiB
52 lines
2.5 KiB
4 weeks ago
|
The microcode_ctl package contains microcode files (vendor-provided binary data
|
||
|
|
and/or code in proprietary format that affects behaviour of a device) for Intel
|
||
|
|
CPUs that may be loaded into the CPU during boot.
|
||
|
|
|
||
|
|
This directory contains information regarding various aspects of the provided
|
||
|
|
microcode files and their usage.
|
||
|
|
|
||
|
|
* LICENSE.intel-ucode
|
||
|
|
"license" file from the Intel x86 CPU microcode archive.
|
||
|
|
* README
|
||
|
|
This file.
|
||
|
|
* README.caveats
|
||
|
|
Caveats (mechanism for enabling/disabling usage of sets of microcode files
|
||
|
|
based on caveat configuration and user preferences) documentation.
|
||
|
|
Also contains general information about microcode update behaviour and links
|
||
|
|
with additional information about the relevant microarchitectural
|
||
|
|
vulnerabilities.
|
||
|
|
* README.intel-ucode
|
||
|
|
"README.md" file from the Intel x86 CPU microcode archive.
|
||
|
|
* RELEASE_NOTES.intel-ucode
|
||
|
|
"releasenote.md" file from the Intel x86 CPU microcode archive.
|
||
|
|
* SECURITY.intel-ucode
|
||
|
|
"security.md" file from the Intel x86 CPU microcode archive.
|
||
|
|
* SUMMARY.intel-ucode
|
||
|
|
Information about supplied microcode files extracted from their headers,
|
||
|
|
in a table form. Columns have the following meaning:
|
||
|
|
* "Path": path to the microcode file under one of the following directories:
|
||
|
|
* /usr/share/microcode_ctl/ucode_with_caveats/intel
|
||
|
|
* /usr/share/microcode_ctl/ucode_with_caveats
|
||
|
|
* /usr/share/microcode_ctl
|
||
|
|
* /lib/firmware
|
||
|
|
* /etc/firmware
|
||
|
|
* "Offset": offset of the microcode blob within the micocode file in bytes.
|
||
|
|
* "Ext. Offset": offset of the extended signature header within
|
||
|
|
the microcode file in bytes.
|
||
|
|
* "Data Size": size of microcode data in bytes. 0 means 2000 bytes.
|
||
|
|
* "Total Size": size of microcode blob in bytes, incuding headers.
|
||
|
|
0 means 2048 bytes.
|
||
|
|
* "CPUID": CPU ID signature (in format returned by the CPUID instruction).
|
||
|
|
* "Platform ID Mask": mask of suitable Platform IDs (provided in bits
|
||
|
|
52..50 of MSR 0x17).
|
||
|
|
* "Revision": microcode revision.
|
||
|
|
* "Date": microcode creation date.
|
||
|
|
* "Checksum": sum (in base 1<< 32) of all 32-bit values comprising
|
||
|
|
the microcode (from Offset up to Offset + Total Size).
|
||
|
|
* "Codenames": list of known CPU codenames associated with the CPUID
|
||
|
|
and Platform ID Mask combination.
|
||
|
|
Please refer to README.cavets, section "Microcode file structure"
|
||
|
|
for additional information regarding microcode header fields.
|
||
|
|
* caveats
|
||
|
|
Directory that contains readme files for each specific caveat.
|