Messages in this thread | | | Subject | Re: [PATCH 5/5] x86/feature: Detect the x86 feature Indirect Branch Prediction Barrier | Date | Fri, 12 Jan 2018 12:39:29 +0000 | From | "Woodhouse, David" <> |
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On Fri, 2018-01-12 at 13:32 +0100, Borislav Petkov wrote: > On Thu, Jan 11, 2018 at 05:32:19PM -0800, Ashok Raj wrote: > > cpuid ax=0x7, return rdx bit 26 to indicate presence of both > > IA32_SPEC_CTRL(MSR 0x48) and IA32_PRED_CMD(MSR 0x49) > > So why do we need two X86_FEATURE flags then?
AMD has only the latter and enumerates them differently.[unhandled content-type:application/x-pkcs7-signature] | |