[MODERATED] Re: [PATCH v6 2/5] NX 2

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Fri, Oct 11, 2019 at 03:40:13AM -0700, speck for Paolo Bonzini wrote:
> 
> This patch adds new cpu family ATOM_TREMONT_X to the cpu vunerability
> whitelist. ATOM_TREMONT_X is not affected by X86_BUG_ITLB_MULTIHIT. There
> may be more bugs not affecting ATOM_TREMONT_X which are not known at
> this point and could be added later.
> 
> Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Thank you!
> ---
>  arch/x86/kernel/cpu/common.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
> index fc00b2349a9f..c652ca9dc046 100644
> --- a/arch/x86/kernel/cpu/common.c
> +++ b/arch/x86/kernel/cpu/common.c
> @@ -1074,6 +1074,8 @@ static void identify_cpu_without_cpuid(struct cpuinfo_x86 *c)
>  	 * good enough for our purposes.
>  	 */
>  
> +	VULNWL_INTEL(ATOM_TREMONT_D,		NO_ITLB_MULTIHIT),
> +
>  	/* AMD Family 0xf - 0x12 */
>  	VULNWL_AMD(0x0f,	NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
>  	VULNWL_AMD(0x10,	NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
> -- 
> 1.8.3.1