Re: [Xen-devel] [PATCH 3/5] xen/arm: cpuerrata: Add MIDR_ALL_VERSIONS

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Tue, 16 Jan 2018, Julien Grall wrote:
> Introduce a new macro MIDR_ALL_VERSIONS to match all variant/revision of a
> given CPU model.
> 
> This is part of XSA-254.
> 
> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>

Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>


> ---
>  xen/arch/arm/cpuerrata.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/xen/arch/arm/cpuerrata.c b/xen/arch/arm/cpuerrata.c
> index 772587c05a..c50d3331f2 100644
> --- a/xen/arch/arm/cpuerrata.c
> +++ b/xen/arch/arm/cpuerrata.c
> @@ -7,6 +7,12 @@
>      .midr_range_min = min,              \
>      .midr_range_max = max
>  
> +#define MIDR_ALL_VERSIONS(model)        \
> +    .matches = is_affected_midr_range,  \
> +    .midr_model = model,                \
> +    .midr_range_min = 0,                \
> +    .midr_range_max = (MIDR_VARIANT_MASK | MIDR_REVISION_MASK)
> +
>  static bool __maybe_unused
>  is_affected_midr_range(const struct arm_cpu_capabilities *entry)
>  {
> -- 
> 2.11.0
> 

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