omni c0be0d7aa8 main/xen: add mitigations for XSA-469 (Intel CPUs)
https://xenbits.xen.org/xsa/advisory-469.html

> Only Intel x86 CPUs are potentially affected.  CPUs from other
> manufacturers are not known to be affected.
>
> The affected Intel CPUs are believed to be those which have eIBRS
> (hardware Spectre-v2 mitigations, starting with Cascade Lake) up to but
> not including those which have BHI_CTRL (Alder Lake and Sapphire
> Rapids).  See the Intel whitepaper for full details.
2025-05-19 18:36:05 +00:00
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