Messages in this thread | | | Date | Fri, 20 Jun 2014 09:30:20 -0700 | From | Dave Hansen <> | Subject | Re: [RFC][PATCH 3/3] x86: make MP a required-feature on 64-bit |
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On 06/20/2014 09:23 AM, H. Peter Anvin wrote: > On 06/20/2014 09:17 AM, Dave Hansen wrote: >> > Today, we assume that all 64-bit cpus have X86_FEATURE_MP. It >> > should be in the REQUIRED_MASK so that we do not need the #undef >> > trick for it. > I don't think we enforce that the MP bit is set in CPUID, though. > Non-AMD processors will typically not set this bit at all, so the > feature validation code would have to be modified to know to not require > this bit.
Ahh, OK. I'll drop this.
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