On Aug 17, 2018, at 03:24, Jan Beulich <jbeul...@suse.com> wrote:
>
> This replaces 5 instructions by a single one, further reducing code size,
> cache, and TLB footprint (in particular on systems supporting BMI2).
This link claims that BMI2 may be less performant/consistent on AMD Ryzen than
Intel:
https://www.reddit.com/r/Amd/comments/60i6er/ryzen_and_bmi2_strange_behavior_and_high_latencies/
Would this patch series have any benefit to L0 hypervisors/rootkits (e.g.
Bromium, Bareflank or similar hypervisors) which could be monitoring L1 Xen?
Or Xen as L0 hypervisor and Hyper-V as L1 hypervisor?
Rich
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