On Thu, Jul 14, 2022 at 06:30:19PM -0700, Pawan Gupta wrote:
Older CPUs beyond its Servicing period are not listed in the affected processor list for MMIO Stale Data vulnerabilities. These CPUs currently report "Not affected" in sysfs, which may not be correct.
Add support for "Unknown" reporting for such CPUs. Mitigation is not deployed when the status is "Unknown".
"CPU is beyond its Servicing period" means these CPUs are beyond their Servicing [1] period and have reached End of Servicing Updates (ESU) [2].
[1] Servicing: The process of providing functional and security updates to Intel processors or platforms, utilizing the Intel Platform Update (IPU) process or other similar mechanisms.
[2] End of Servicing Updates (ESU): ESU is the date at which Intel will no longer provide Servicing, such as through IPU or other similar update processes. ESU dates will typically be aligned to end of quarter.
Suggested-by: Andrew Cooper andrew.cooper3@citrix.com
Ping! Is there any interest in fixing reporting for older processors?