Re: [Xen-devel] [PATCH 2/5] xen/arm64: Add missing MIDR values for Cortex-A72, A73 and A75

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Tue, 16 Jan 2018, Julien Grall wrote:
> Cortex-A72, A73 and A75 MIDR will be used to a follow-up for hardening
> the branch predictor.
> 
> This is part of XSA-254.
> 
> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>

Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>


> ---
>  xen/include/asm-arm/processor.h | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/xen/include/asm-arm/processor.h b/xen/include/asm-arm/processor.h
> index 65eb1071e1..3edab1b893 100644
> --- a/xen/include/asm-arm/processor.h
> +++ b/xen/include/asm-arm/processor.h
> @@ -47,10 +47,16 @@
>  #define ARM_CPU_PART_CORTEX_A15     0xC0F
>  #define ARM_CPU_PART_CORTEX_A53     0xD03
>  #define ARM_CPU_PART_CORTEX_A57     0xD07
> +#define ARM_CPU_PART_CORTEX_A72     0xD08
> +#define ARM_CPU_PART_CORTEX_A73     0xD09
> +#define ARM_CPU_PART_CORTEX_A75     0xD0A
>  
>  #define MIDR_CORTEX_A15 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, 
> ARM_CPU_PART_CORTEX_A15)
>  #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, 
> ARM_CPU_PART_CORTEX_A53)
>  #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, 
> ARM_CPU_PART_CORTEX_A57)
> +#define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, 
> ARM_CPU_PART_CORTEX_A72)
> +#define MIDR_CORTEX_A73 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, 
> ARM_CPU_PART_CORTEX_A73)
> +#define MIDR_CORTEX_A75 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, 
> ARM_CPU_PART_CORTEX_A75)
>  
>  /* MPIDR Multiprocessor Affinity Register */
>  #define _MPIDR_UP           (30)
> -- 
> 2.11.0
> 

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