Then, concatenate all the AMD firmware files into a single file. As before, the path and filename of the output file must not be altered. Either include all the available AMD firmware files in the kernel or select just the specific one for the system's CPU. Another option is to simply build all the firmware blobs into the kernel. This section will only include the firmware suitable to the current system's CPU family.
The following table helps to identify the right firmware blob file for given CPU family identificator:. Easy to follow. No jargon. Pictures helped. Didn't match my screen. Incorrect instructions. Too technical. Not enough information. Not enough pictures. Any additional feedback? Submit feedback. Thank you for your feedback! CVE number.
CVE title. View code. Releases No releases published. Packages 0 No packages published. Contributors 2 platomav Plato Mavropoulos SmallJoker. You signed in with another tab or window. Reload to refresh your session. Modern processors do have the ability at initialization to apply volatile updates to move the processor to a newer microcode level.
However, as soon as the processor is rebooted, it reverts back to the microcode baked into their ROM. However, as stated earlier, neither is updating the microcode in the processors ROM.
The answer is simply that Windows offers the broadest coverage and quickest turnaround time to address these vulnerabilities. Microcode updates delivered via the Windows OS are not new; as far back as some updates were made available to address performance and reliability concerns. Technically speaking you could but as mentioned earlier, often Microsoft Update may have the microcode updates to address issues much sooner.
When the processor boots, it has versioning to make sure it is utilizing the latest microcode updates regardless of where it may be coming from. It is possible that the OEM updates the microcode to one level and the OS updates the microcode to an even higher level during the same boot.
Microcode updates install like any other update. The key difference is that the payload of the hotfix is primarily one of two files:. These files contain the updated microcode and Windows automatically loads these via OS Loader to patch the microcode on the boot strap processor. This payload is then passed to additional processors as they startup as well the Hyper-V hypervisor if enabled. Hopefully this information will help demystify what these microcode updates are and allow you to confidently install these updates proactively.
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