Re: [kvm-unit-tests PATCH v1 1/2] arm64: Replace the SCTLR_EL1 filed definition by _BITUL()

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Hi Shaoqin,

On 7/19/23 05:19, Shaoqin Huang wrote:
> Currently the SCTLR_EL1_* is defined by (1 << x), all of them can be
> replaced by the _BITUL() macro to make the format consistent with the
> SCTLR_EL1_RES1 definition.

I would rephrase the commit title into arm64: Use _BITUL() to define
SCTLR_EL1 bit fields

Besides, since SCTLR_EL1 is 64b shouldn't we have _BITULL() everywhere
instead?

Eric
>
> Signed-off-by: Shaoqin Huang <shahuang@xxxxxxxxxx>
> ---
>  lib/arm64/asm/sysreg.h | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/lib/arm64/asm/sysreg.h b/lib/arm64/asm/sysreg.h
> index 18c4ed3..c7f529d 100644
> --- a/lib/arm64/asm/sysreg.h
> +++ b/lib/arm64/asm/sysreg.h
> @@ -80,14 +80,14 @@ asm(
>  #define ICC_GRPEN1_EL1			sys_reg(3, 0, 12, 12, 7)
>  
>  /* System Control Register (SCTLR_EL1) bits */
> -#define SCTLR_EL1_EE	(1 << 25)
> -#define SCTLR_EL1_WXN	(1 << 19)
> -#define SCTLR_EL1_I	(1 << 12)
> -#define SCTLR_EL1_SA0	(1 << 4)
> -#define SCTLR_EL1_SA	(1 << 3)
> -#define SCTLR_EL1_C	(1 << 2)
> -#define SCTLR_EL1_A	(1 << 1)
> -#define SCTLR_EL1_M	(1 << 0)
> +#define SCTLR_EL1_EE		_BITUL(25)
> +#define SCTLR_EL1_WXN		_BITUL(19)
> +#define SCTLR_EL1_I		_BITUL(12)
> +#define SCTLR_EL1_SA0		_BITUL(4)
> +#define SCTLR_EL1_SA		_BITUL(3)
> +#define SCTLR_EL1_C		_BITUL(2)
> +#define SCTLR_EL1_A		_BITUL(1)
> +#define SCTLR_EL1_M		_BITUL(0)
>  
>  #define SCTLR_EL1_RES1	(_BITUL(7) | _BITUL(8) | _BITUL(11) | _BITUL(20) | \
>  			 _BITUL(22) | _BITUL(23) | _BITUL(28) | _BITUL(29))




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