Messages in this thread | | | Date | Fri, 5 Feb 2021 12:52:47 -0800 | From | Andi Kleen <> | Subject | Re: [PATCH RESEND] perf/x86/kvm: Add Cascade Lake Xeon steppings to isolation_ucodes[] |
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On Fri, Feb 05, 2021 at 11:13:24AM -0800, Jim Mattson wrote: > Cascade Lake Xeon parts have the same model number as Skylake Xeon > parts, so they are tagged with the intel_pebs_isolation > quirk. However, as with Skylake Xeon H0 stepping parts, the PEBS > isolation issue is fixed in all microcode versions. > > Add the Cascade Lake Xeon steppings (5, 6, and 7) to the > isolation_ucodes[] table so that these parts benefit from Andi's > optimization in commit 9b545c04abd4f ("perf/x86/kvm: Avoid unnecessary > work in guest filtering").
Reviewed-by: Andi Kleen <ak@linux.intel.com>
-Andi
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