[PATCH] arm64: trap implementation defined functionality in userspace

[Mark Brown]

On Wed, Jun 22, 2022 at 12:54:24PM +0100, Kristina Martsenko wrote:

> +++ b/arch/arm64/include/asm/sysreg.h
> @@ -902,6 +902,7 @@
>  
>  /* id_aa64mmfr1 */
>  #define ID_AA64MMFR1_ECBHB_SHIFT	60
> +#define ID_AA64MMFR1_TIDCP1_SHIFT	52
>  #define ID_AA64MMFR1_HCX_SHIFT		40
>  #define ID_AA64MMFR1_AFP_SHIFT		44
>  #define ID_AA64MMFR1_ETS_SHIFT		36
> @@ -918,6 +919,9 @@
>  #define ID_AA64MMFR1_VMIDBITS_8		0
>  #define ID_AA64MMFR1_VMIDBITS_16	2
>  
> +#define ID_AA64MMFR1_TIDCP1_NI		0
> +#define ID_AA64MMFR1_TIDCP1_IMP		1

Infradead being infradead meant I unfortunately didn't see this until
after it was applied so it's a bit late but you're adding defines to
sysreg.h rather than converting to be generated with gen-sysreg.awk -
please consider converting this register to automatic generation (which
could also be done incrementally).
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