Re: [PATCH v2 5/5] x86/pti: Do not enable PTI on fixed Intel processors

David Woodhouse
2018-01-23T20:50:23Z

[-- Attachment #1: Type: text/plain, Size: 670 bytes --]

> On Tue, 2018-01-23 at 18:45 +0000, Alan Cox wrote:
>
> static __initdata struct x86_cpu_id cpu_in_order[] = {
>         { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_CEDARVIEW, X86_FEATURE_ANY },
>         { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_CLOVERVIEW, X86_FEATURE_ANY },
>         { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_LINCROFT, X86_FEATURE_ANY },
>         { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_PENWELL, X86_FEATURE_ANY },
>         { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_PINEVIEW, X86_FEATURE_ANY },
>         {}
> };

Are those getting a microcode update to advertise RDCL_NO in the
IA32_ARCH_CAPABILITIES MSR?

[-- Attachment #2: smime.p7s --]
[-- Type: application/x-pkcs7-signature, Size: 5213 bytes --]