Re: [PATCH v2 1/5] x86: Detection of Knights Landing A/D leak

Dave Hansen
2021-10-26T15:55:14Z

On 10/21/21 5:21 AM, Nadav Amit wrote:
> --- a/arch/x86/kernel/cpu/intel.c
> +++ b/arch/x86/kernel/cpu/intel.c
> @@ -296,6 +296,11 @@ static void early_init_intel(struct cpuinfo_x86 *c)
> }
> }
>
> + if (c->x86_model == 87) {
> + pr_info_once("Enabling PTE leaking workaround\n");
> + set_cpu_bug(c, X86_BUG_PTE_LEAK);
> + }

Please take a look at:

arch/x86/include/asm/intel-family.h

specifically:

#define INTEL_FAM6_XEON_PHI_KNL 0x57 /* Knights Landing */